Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (55)

Search Parameters:
Keywords = CCL5/CCR5 axis

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
11 pages, 1552 KB  
Article
Evaluating Anti-CCL25 as a Therapeutic Strategy to Disrupt Foci Formation in a Spontaneous Murine Model of Sjögren’s Disease
by Martha Tsaliki, Biji T. Kurien, Joshua Cavett, John A. Ice, Kristi A. Koelsch and Robert Hal Scofield
Int. J. Mol. Sci. 2025, 26(18), 8802; https://doi.org/10.3390/ijms26188802 - 10 Sep 2025
Viewed by 284
Abstract
Sjögren’s disease (SjD) targets the salivary and lacrimal glands and is characterized by autoantibody production and glandular lymphocytic infiltrate with ectopic germinal centers (EGCs). The chemokine CCL25 recruits CCR9+ CD4+ T cells to the salivary glands to promote B cell activation. [...] Read more.
Sjögren’s disease (SjD) targets the salivary and lacrimal glands and is characterized by autoantibody production and glandular lymphocytic infiltrate with ectopic germinal centers (EGCs). The chemokine CCL25 recruits CCR9+ CD4+ T cells to the salivary glands to promote B cell activation. However, the therapeutic potential of targeting the CCL25–CCR9 axis to limit glandular inflammation and lymphoid neogenesis remains largely unexplored. Evaluate whether blocking the CCL25–CCR9+ T cell axis with a monoclonal antibody could reduce immune infiltration, ectopic germinal center (EGC) formation, and local autoantibody production in the NOD.H2(h4) mouse model of SjD. Female NOD.H2(h4) mice were administered anti-CCL25 antibody, isotype control, or PBS intraperitoneally for 12 weeks. Sera and saliva were collected to evaluate anti-Ro52 antibodies via ELISA across treatment groups. Salivary glands were harvested and processed for H&E staining to assess lymphocytic infiltration and focus scores. Treatment with α-CCL25 was well tolerated, with no significant differences in body weight or stimulated salivary flow between treatment groups. Histopathological evaluation revealed no reduction in lymphocytic infiltration, focus scores, or percentage of inflamed tissue in α-CCL25-treated mice compared to controls. Anti-Ro52 antibodies were undetectable in plasma or saliva across all groups and timepoints. Systemic CCL25 blockade did not significantly alter salivary gland inflammation, function, or autoantibody production in NOD.H2(h4) mice. These findings suggest that monotherapy targeting the CCL25–CCR9 axis may be insufficient to resolve glandular autoimmunity in this model and that additional or combinatorial strategies may be necessary for effective intervention. Full article
(This article belongs to the Special Issue Molecular Mechanisms of Sjögren's Syndrome, 4th Edition)
Show Figures

Figure 1

16 pages, 1920 KB  
Article
Effects of CCL20/CCR6 Modulators in a T Cell Adoptive Transfer Model of Colitis
by Marika Allodi, Lisa Flammini, Carmine Giorgio, Maria Grazia Martina, Francesca Barbieri, Vigilio Ballabeni, Elisabetta Barocelli, Marco Radi and Simona Bertoni
Pharmaceuticals 2025, 18(9), 1327; https://doi.org/10.3390/ph18091327 - 4 Sep 2025
Viewed by 570
Abstract
Background/Objectives: IBDs are chronic relapsing inflammatory intestinal disorders whose precise etiology is still only poorly defined: critical for their pathogenesis is the CCL20/CCR6 axis, whose modulation by small molecules may represent an innovative therapeutic approach. The aim of the present work is [...] Read more.
Background/Objectives: IBDs are chronic relapsing inflammatory intestinal disorders whose precise etiology is still only poorly defined: critical for their pathogenesis is the CCL20/CCR6 axis, whose modulation by small molecules may represent an innovative therapeutic approach. The aim of the present work is to test the potential efficacy of two molecules, MR120, a small selective CCR6 antagonist, active in TNBS- and chronic DSS-induced murine models of intestinal inflammation, and its derivative MR452, a well-tolerated agent endowed with improved anti-chemotactic in vitro properties, in the adoptive transfer colitis model. To the best of our knowledge, this is the first attempt to use adoptive transfer colitis to test modulators of the CCL20/CCR6 axis. Methods and Results: The induction of colitis in immunocompromised mice receiving CD4+CD25 T cells i.p. resulted in a moderate inflammation and was met with limited protective responses following daily subcutaneous administration of MR120 or MR452 for 8 weeks. Both compounds significantly reduced colonic myeloperoxidase activity, and MR452 also lowered CCL20 levels in the gut, but they failed to prevent the increase in the Disease Activity Index, colon wall thickening, and macroscopic inflammation score. Conclusions: Our findings suggest that, despite the beneficial effects played by MR120 against subacute TNBS- and chronic DSS-induced colitis, the pharmacological targeting of the CCL20/CCR6 axis in the adoptive transfer model has a negligible effect in ameliorating the IBD-like phenotype driven by the altered intestinal immune homeostasis and by the disrupted function of immune-suppressive Treg cells. Full article
(This article belongs to the Section Pharmacology)
Show Figures

Figure 1

17 pages, 10468 KB  
Article
IDHP Mitigates LPS-Induced Cardiomyocyte Injury via the GAS6/Axl-AMPK Axis: A Multi-Target Strategy Counteracting Inflammation, Oxidative Stress, and Apoptosis
by Junmin Chen, Yijie Wang, Xingge Li, Xiaoqing Guo, Jiayin Tian, Xiaohui Zheng, Yang Yang and Yanting Cao
Pharmaceuticals 2025, 18(8), 1188; https://doi.org/10.3390/ph18081188 - 12 Aug 2025
Viewed by 580
Abstract
Background: Sepsis-induced myocardial injury (SIMI) significantly contributes to sepsis-related mortality, yet effective therapies remain limited. This study investigated the cardioprotective potential of isopropyl 3-(3,4-dihydroxyphenyl)-2-hydroxypropanoate (IDHP), a bioactive metabolite from Salvia miltiorrhiza, focusing on its mechanism via the GAS6/Axl signaling axis in lipopolysaccharide [...] Read more.
Background: Sepsis-induced myocardial injury (SIMI) significantly contributes to sepsis-related mortality, yet effective therapies remain limited. This study investigated the cardioprotective potential of isopropyl 3-(3,4-dihydroxyphenyl)-2-hydroxypropanoate (IDHP), a bioactive metabolite from Salvia miltiorrhiza, focusing on its mechanism via the GAS6/Axl signaling axis in lipopolysaccharide (LPS)-induced myocardial injury. Methods: Using an in vitro HL-1 cardiomyocyte model, IDHP’s cytotoxicity was assessed (0–20 μM). Cells were pretreated with IDHP (10 μM, optimal concentration) before LPS exposure. Inflammatory cytokines (IL-6/TNF-α/IL-1β/IL-18), chemokines (CCL2/CCR2, CCL25/CCR9), ROS levels (Nrf2 pathway), and apoptosis markers (Bax) were quantified. GAS6/Axl-AMPK signaling was evaluated via GAS6 knockout experiments. Results: IDHP (≤20 μM) showed no cytotoxicity. At 10 μM, it exhibited anti-inflammatory effects by reducing LPS-induced cytokine/chemokine release, demonstrated antioxidant activity through lowering ROS via Nrf2 activation, and exerted anti-apoptotic action by downregulating Bax. Mechanistically, IDHP restored GAS6/Axl-AMPK phosphorylation, an effect abolished in GAS6-knockout cells. Conclusions: IDHP mitigates LPS-induced cardiomyocyte injury by concurrently targeting inflammation, oxidative stress, and apoptosis via GAS6/Axl-AMPK signaling, proposing a novel therapeutic avenue for SIMI. Full article
(This article belongs to the Special Issue Pharmacology of Heart Failure)
Show Figures

Figure 1

16 pages, 805 KB  
Review
Heparin, Heparin-like Molecules, and Heparin Mimetics in Breast Cancer: A Concise Review
by Diego R. Gatica Portillo, Yishu Li, Navneet Goyal, Brian G. Rowan, Rami A. Al-Horani and Muralidharan Anbalagan
Biomolecules 2025, 15(7), 1034; https://doi.org/10.3390/biom15071034 - 17 Jul 2025
Viewed by 951
Abstract
Heparin and heparan sulfate are essential in various biological processes relevant to cancer biology and pathology. Given the clinical importance of breast cancer, it is of high interest to seek more effective and safer treatment. The application of heparins (UFH, LMWH, ULMWH, fondaparinux) [...] Read more.
Heparin and heparan sulfate are essential in various biological processes relevant to cancer biology and pathology. Given the clinical importance of breast cancer, it is of high interest to seek more effective and safer treatment. The application of heparins (UFH, LMWH, ULMWH, fondaparinux) and heparin mimetics as potential treatments is particularly interesting. Their use led to promising results in various breast cancer models by exhibiting anti-angiogenic and anti-metastatic properties. This article concisely reviews studies involving heparins and mimetics in both in vitro and in vivo breast cancer settings. We highlight molecules, conjugates, delivery systems, and combinations involving heparin or its mimetics. We also survey several potential biological targets such as VEGF, FGF-2, TGFβ-1, PDGF-B, NPP-1, CXCL12-CXCR4 axis, and CCR7-CCL21 axis. Overall, heparins and their mimetics, conjugates, and combinations represent a powerful strategy to effectively and safely treat breast cancer, which is the most common cancer diagnosed in women worldwide and the fifth leading cause of cancer-related deaths worldwide. Full article
(This article belongs to the Special Issue Advances in Glycosaminoglycans (GAGs) and Mimetics)
Show Figures

Figure 1

17 pages, 4917 KB  
Article
2,5-Dihydroxybenzoic Acid Ameliorates Metabolic Dysfunction-Associated Steatotic Liver Disease by Targeting the CCL2-CCR2 Axis to Reduce Lipid Accumulation
by Chien-Yun Hsiang, Kuang-Ting Hsu, Hsin-Yi Lo, Yun-Jhu Hou and Tin-Yun Ho
Nutrients 2025, 17(11), 1835; https://doi.org/10.3390/nu17111835 - 28 May 2025
Viewed by 917
Abstract
Background/Objectives: Metabolic dysfunction-associated steatotic liver disease (MASLD) is the most prevalent chronic liver disease worldwide, contributing to metabolic dysfunction and increased healthcare costs. The green Mediterranean diet reduces intrahepatic fat and elevates the plasma levels of 2,5-dihydroxybenzoic acid (2,5-DHBA), suggesting a mechanistic role [...] Read more.
Background/Objectives: Metabolic dysfunction-associated steatotic liver disease (MASLD) is the most prevalent chronic liver disease worldwide, contributing to metabolic dysfunction and increased healthcare costs. The green Mediterranean diet reduces intrahepatic fat and elevates the plasma levels of 2,5-dihydroxybenzoic acid (2,5-DHBA), suggesting a mechanistic role for 2,5-DHBA in hepatic lipid metabolism. This study aimed to evaluate the therapeutic potential of 2,5-DHBA in MASLD and elucidate its molecular mechanism. Methods: Lipid accumulation was assessed in oleic acid-treated HepG2 cells and a high-fat diet (HFD)-induced MASLD mouse model. RNA sequencing, molecular docking, and immunohistochemical staining were performed to investigate the molecular mechanisms, focusing on the chemokine (C-C motif) ligand 2 (CCL2)–CCL2 receptor (CCR2) axis. Results: 2,5-DHBA significantly reduced hepatic lipid accumulation in both HepG2 cells and HFD-fed mice in a dose-dependent manner. RNA sequencing revealed the marked downregulation of CCL2, a key proinflammatory mediator in MASLD pathogenesis. Molecular docking predicted that 2,5-DHBA competed with CCL2 for binding at the CCR2 axis. Immunohistochemistry further confirmed that 2,5-DHBA treatment lowered hepatic CCL2 expression, suppressed nuclear factor-κB activation, and reduced inflammatory cell infiltration. These findings suggest that 2,5-DHBA exerted anti-steatotic effects by modulating the CCL2-CCR2 signaling pathway. Conclusions: This is the first study to demonstrate that 2,5-DHBA attenuates hepatic steatosis via targeting the CCL2-CCR2 axis. These findings highlight its potential as a novel nutraceutical strategy for MASLD treatment. Full article
(This article belongs to the Section Nutrition and Metabolism)
Show Figures

Graphical abstract

20 pages, 3829 KB  
Article
Mesenteric Lymphatic B Cells Migrate to the Gut and Aggravate TNBS-Induced Rat Colitis via Regulating Intestinal T Cells
by Yu Zhang, Qinghe Zhao, Zhe Wu, Ning Chen, Na Li, Jiao Liu, Menglei Zhang, Shuolei Li, Yujing Chi and Yulan Liu
Int. J. Mol. Sci. 2025, 26(8), 3519; https://doi.org/10.3390/ijms26083519 - 9 Apr 2025
Viewed by 928
Abstract
Inflammatory bowel disease (IBD), comprising Crohn’s disease (CD) and ulcerative colitis (UC), is affecting a growing global population. Unlike UC, which is characterized by inflammation confined to the intestinal mucosa and submucosa, CD involves transmural inflammation of the intestine. Although the lymphatic system [...] Read more.
Inflammatory bowel disease (IBD), comprising Crohn’s disease (CD) and ulcerative colitis (UC), is affecting a growing global population. Unlike UC, which is characterized by inflammation confined to the intestinal mucosa and submucosa, CD involves transmural inflammation of the intestine. Although the lymphatic system is believed to play a role in the pathogenesis of CD, its exact contribution remains poorly understood. Mesenteric lymphatics (MLs), which drain interstitial fluid and immune cells into mesenteric lymph nodes, have been implicated in this process. In the present study, we aimed to investigate the role of ML immune cells in TNBS-induced colitis in rats. Flow cytometry analysis revealed an increased ratio of B cells and altered B cell function in the MLs of colitis rats compared to controls. The adoptive transfer of mesenteric lymphatic B (MLB) cells isolated from colitis rats to recipient rats exacerbated colitis and was associated with the enhanced migration of MLB cells to the gut. RNA sequencing analysis demonstrated a significant upregulation of genes associated with inflammation and immune responses in MLB cells from colitis rats, particularly key molecules involved in T cell activation, such as cluster of differentiation 27 (Cd27) and cluster of differentiation 40 (Cd40), and the chemotactic receptor C-C motif chemokine receptor 8 (Ccr8), which mediates B cell migration in response to T cells. Mechanistically, MLB cells from colitis rats were recruited to the colon by intra-intestinal T cells through the Ccr8-C-C motif chemokine ligand 1 (Ccl1) axis, where they subsequently exacerbated inflammatory responses via enhanced differentiation. These observations indicate that the migration of MLB cells to the gut exacerbates TNBS-induced colitis in rats by modulating intestinal T cells. Full article
(This article belongs to the Special Issue Molecular Regulation in Inflammatory and Autoimmune Diseases)
Show Figures

Figure 1

30 pages, 6027 KB  
Article
Repeated Administrations of Polyphenolic Extracts Prevent Chronic Reflexive and Non-Reflexive Neuropathic Pain Responses by Modulating Gliosis and CCL2-CCR2/CX3CL1-CX3CR1 Signaling in Spinal Cord-Injured Female Mice
by Anna Bagó-Mas, Andrea Korimová, Karolína Bretová, Meritxell Deulofeu, Enrique Verdú, Núria Fiol, Petr Dubový and Pere Boadas-Vaello
Int. J. Mol. Sci. 2025, 26(7), 3325; https://doi.org/10.3390/ijms26073325 - 2 Apr 2025
Cited by 1 | Viewed by 1098
Abstract
Neuropathic pain after spinal cord injury lacks any effective treatments, often leading to chronic pain. This study tested whether the daily administration of fully characterized polyphenolic extracts from grape stalks and coffee could prevent both reflexive and non-reflexive chronic neuropathic pain in spinal [...] Read more.
Neuropathic pain after spinal cord injury lacks any effective treatments, often leading to chronic pain. This study tested whether the daily administration of fully characterized polyphenolic extracts from grape stalks and coffee could prevent both reflexive and non-reflexive chronic neuropathic pain in spinal cord-injured mice by modulating the neuroimmune axis. Female CD1 mice underwent mild spinal cord contusion and received intraperitoneal extracts in weeks one, three, and six post-surgery. Reflexive pain responses were assessed weekly for up to 10 weeks, and non-reflexive pain was evaluated at the study’s end. Neuroimmune crosstalk was investigated, focusing on glial activation and the expression of CCL2/CCR2 and CX3CL1/CX3CR1 in supraspinal pain-related areas, including the periaqueductal gray, rostral ventromedial medulla, anterior cingulate cortex, and amygdala. Repeated treatments prevented mechanical allodynia and thermal hyperalgesia, and also modulated non-reflexive pain. Moreover, they reduced supraspinal gliosis and regulated CCL2/CCR2 and CX3CL1/CX3CR1 signaling. Overall, the combination of polyphenols in these extracts may offer a promising pharmacological strategy to prevent chronic reflexive and non-reflexive pain responses by modifying central sensitization markers, not only at the contusion site but also in key supraspinal regions implicated in neuropathic pain. Overall, these data highlight the potential of polyphenolic extracts for spinal cord injury-induced chronic neuropathic pain. Full article
(This article belongs to the Collection Feature Papers in Molecular Neurobiology)
Show Figures

Figure 1

23 pages, 1729 KB  
Systematic Review
Molecular Role of HIV-1 Human Receptors (CCL5–CCR5 Axis) in neuroAIDS: A Systematic Review
by Marcos Jessé Abrahão Silva, Rebecca Lobato Marinho, Yan Corrêa Rodrigues, Thiago Pinto Brasil, Pabllo Antonny Silva Dos Santos, Caroliny Soares Silva, Daniele Melo Sardinha, Karla Valéria Batista Lima and Luana Nepomuceno Gondim Costa Lima
Microorganisms 2024, 12(4), 782; https://doi.org/10.3390/microorganisms12040782 - 12 Apr 2024
Cited by 3 | Viewed by 3943
Abstract
Chronic HIV-1 infection can cause neurological illness, also known as HIV-associated neurocognitive disorders (HAND). The elevated level of pro-inflammatory cytokines and chemokines, such as C-C Chemokine Ligand 5 (CCL5/RANTES), is one of the ways of causing HIV-1-mediated neuroinflammation. C-C Chemokine Receptor 5 (CCR5) [...] Read more.
Chronic HIV-1 infection can cause neurological illness, also known as HIV-associated neurocognitive disorders (HAND). The elevated level of pro-inflammatory cytokines and chemokines, such as C-C Chemokine Ligand 5 (CCL5/RANTES), is one of the ways of causing HIV-1-mediated neuroinflammation. C-C Chemokine Receptor 5 (CCR5) is the main coreceptor for viral entry into host cells and for mediating induction of CCL5/RANTES. CCR5 and CCL5 are part of a correlated axis of immune pathways used for effective protection against the HIV-1 virus. The purpose of this paper was to review the literary knowledge about the immunopathological relationship between this immune complex and neuroAIDS. A systematic review of the literature was conducted based on the selection and search of articles, available in English, Spanish, or Portuguese in the time frame of 1990–2022, of primary and secondary types in the PUBMED, Science Direct, SciELO, and LILACS databases through descriptors (MeSH) together with “AND”: “CCR5”; “CCL5”; “neurological manifestations”; or “HIV”. The methodological quality of the articles was assessed using the JBI Checklists and the PRISMA 2020 writing guidelines were followed. A total of 36 articles were included in the final composition of the review. The main cells of the CNS affected by neuroAIDS are: neurons; microglia; astrocytes; and oligodendrocytes. Molecular devices and their associations with cellular injuries have been described from the entry of the virus into the host’s CNS cell to the generation of mental disorders. Furthermore, divergent results were found about the levels of CCL5/RANTES secretion and the generation of immunopathogenesis, while all condensed research for CCR5 indicated that elevation of this receptor causes more neurodegenerative manifestations. Therefore, new therapeutic and interventional strategies can be conditioned on the immunological direction proposed in this review for the disease. Full article
Show Figures

Figure 1

12 pages, 2355 KB  
Article
Systematic Assessment of Human CCR7 Signalling Using NanoBRET Biosensors Points towards the Importance of the Cellular Context
by Nathan Vanalken, Katrijn Boon, Martyna Szpakowska, Andy Chevigné, Dominique Schols and Tom Van Loy
Biosensors 2024, 14(3), 142; https://doi.org/10.3390/bios14030142 - 14 Mar 2024
Viewed by 2795
Abstract
The human CC chemokine receptor 7 (CCR7) is activated by two natural ligands, CC chemokine ligand 19 (CCL19) and 21 (CCL21). The CCL19-CCL21-CCR7 axis has been extensively studied in vitro, but there is still debate over whether CCL21 is an overall weaker agonist [...] Read more.
The human CC chemokine receptor 7 (CCR7) is activated by two natural ligands, CC chemokine ligand 19 (CCL19) and 21 (CCL21). The CCL19-CCL21-CCR7 axis has been extensively studied in vitro, but there is still debate over whether CCL21 is an overall weaker agonist or if the axis displays biased signalling. In this study, we performed a systematic analysis at the transducer level using NanoBRET-based methodologies in three commonly used cellular backgrounds to evaluate pathway and ligand preferences, as well as ligand bias and the influence of the cellular system thereon. We found that both CCL19 and CCL21 activated all cognate G proteins and some non-cognate couplings in a cell-type-dependent manner. Both ligands recruited β-arrestin1 and 2, but the potency was strongly dependent on the cellular system. Overall, CCL19 and CCL21 showed largely conserved pathway preferences, but small differences were detected. However, these differences only consolidated in a weak ligand bias. Together, these data suggest that CCL19 and CCL21 share mostly overlapping, weakly biased, transducer profiles, which can be influenced by the cellular context. Full article
(This article belongs to the Section Nano- and Micro-Technologies in Biosensors)
Show Figures

Figure 1

14 pages, 3276 KB  
Article
Nicotinamide Riboside Augments Human Macrophage Migration via SIRT3-Mediated Prostaglandin E2 Signaling
by Jing Wu, Maximilian Bley, Russell S. Steans, Allison M. Meadows, Rebecca D. Huffstutler, Rong Tian, Julian L. Griffin and Michael N. Sack
Cells 2024, 13(5), 455; https://doi.org/10.3390/cells13050455 - 5 Mar 2024
Cited by 1 | Viewed by 3728
Abstract
NAD+ boosting via nicotinamide riboside (NR) confers anti-inflammatory effects. However, its underlying mechanisms and therapeutic potential remain incompletely defined. Here, we showed that NR increased the expression of CC-chemokine receptor 7 (CCR7) in human M1 macrophages by flow cytometric analysis of cell [...] Read more.
NAD+ boosting via nicotinamide riboside (NR) confers anti-inflammatory effects. However, its underlying mechanisms and therapeutic potential remain incompletely defined. Here, we showed that NR increased the expression of CC-chemokine receptor 7 (CCR7) in human M1 macrophages by flow cytometric analysis of cell surface receptors. Consequently, chemokine ligand 19 (CCL19, ligand for CCR7)-induced macrophage migration was enhanced following NR administration. Metabolomics analysis revealed that prostaglandin E2 (PGE2) was increased by NR in human monocytes and in human serum following in vivo NR supplementation. Furthermore, NR-mediated upregulation of macrophage migration through CCL19/CCR7 was dependent on PGE2 synthesis. We also demonstrated that NR upregulated PGE2 synthesis through SIRT3-dependent post-transcriptional regulation of cyclooxygenase 2 (COX-2). The NR/SIRT3/migration axis was further validated using the scratch-test model where NR and SIRT3 promoted more robust migration across a uniformly disrupted macrophage monolayer. Thus, NR-mediated metabolic regulation of macrophage migration and wound healing may have therapeutic potential for the topical management of chronic wound healing. Full article
(This article belongs to the Special Issue Advances in Leukocyte Migration and Location in Health and Disease)
Show Figures

Figure 1

19 pages, 4034 KB  
Article
Downregulation of Salt-Inducible Kinase 3 Enhances CCL24 Activation in the Placental Environment with Preeclampsia
by Hsing-Fen Tsai, Ching-Fen Tseng, Yu-Ling Liang, Pei-Ying Wu, Lan-Yin Huang, Yu-Han Lin, Li-Hsuan Lin, Chang-Ni Lin and Keng-Fu Hsu
Int. J. Mol. Sci. 2024, 25(1), 222; https://doi.org/10.3390/ijms25010222 - 22 Dec 2023
Cited by 2 | Viewed by 1615
Abstract
Preeclampsia (PE) remains one of the leading causes of maternal and perinatal morbidity and mortality. However, the exact pathophysiology of PE is still unclear. The recent widely accepted notion that successful pregnancy relies on maternal immunological adaptation is of utmost importance. Moreover, salt-inducible [...] Read more.
Preeclampsia (PE) remains one of the leading causes of maternal and perinatal morbidity and mortality. However, the exact pathophysiology of PE is still unclear. The recent widely accepted notion that successful pregnancy relies on maternal immunological adaptation is of utmost importance. Moreover, salt-inducible kinase 3 (SIK3) is an AMP-activated protein kinase-related kinase, and it has reported a novel regulator of energy and inflammation, and its expression related with some diseases. To explore whether SIK3 expression correlated with PE, we analyzed SIK3 gene expression and its association with PE through GEO datasets. We identified that SIK3 was significantly downregulated in PE across four datasets (p < 0.05), suggesting that SIK3 participated in the pathogenesis of PE. We initially demonstrated the significant downregulation of SIK3 in trophoblast cells of PE. SIK3 downregulation was positively correlated with the increased number of CD204(+) cells in in vivo and in vitro experiments. The increased number of CD204(+) cells could inhibit the migration and invasion of trophoblast cells. We then clarified the potential mechanism of PE with SIK3 downregulation: M2 skewing was triggered by trophoblast cells derived via the CCL24/CCR3 axis, leading to an increase in CD204(+) cells, a decrease in phagocytosis, and the production of IL-10 at the maternal–fetal interface of the placenta with PE. IL-10 further contributed to a reduction in the migration and invasion of trophoblast cells. It also established a feedback loop wherein trophoblast cells increased CCL24 production to maintain M2 dominance in the placental environments of PE. Full article
(This article belongs to the Section Molecular Immunology)
Show Figures

Figure 1

17 pages, 4360 KB  
Article
Lactate-Induced CCL8 in Tumor-Associated Macrophages Accelerates the Progression of Colorectal Cancer through the CCL8/CCR5/mTORC1 Axis
by Hui Zhou, Jiayi Yao, Zhaozhong Zhong, Hongfa Wei, Yulong He, Wenchao Li and Kunpeng Hu
Cancers 2023, 15(24), 5795; https://doi.org/10.3390/cancers15245795 - 11 Dec 2023
Cited by 16 | Viewed by 3314
Abstract
Tumor-associated macrophages (TAMs) play a pivotal role in shaping the tumor microenvironment. Lactic acid (LA) has been identified as an influential factor in promoting immune escape and tumor progression. However, the mechanisms through which LA modulates TAMs in colorectal cancer (CRC) remain poorly [...] Read more.
Tumor-associated macrophages (TAMs) play a pivotal role in shaping the tumor microenvironment. Lactic acid (LA) has been identified as an influential factor in promoting immune escape and tumor progression. However, the mechanisms through which LA modulates TAMs in colorectal cancer (CRC) remain poorly understood. We used qRT-PCR to quantify the expression of LA-related genes (LDHA and LAMP2) in CRC tumor tissues and adjacent nontumor tissues (n = 64). The biological effects and mechanisms of LA on macrophages and tumors were evaluated via qRT-PCR, Western blot, RNA-seq, wound healing assay, colony formation assay in vitro, and allograft mouse tumor models in vivo. We found the expression of LDHA and LAMP2 was highly elevated in the tumor regions and positively associated with a poor clinical stage of CRC. A high concentration of LA was generated under hypoxia; it could promote tumor progression and metastasis with the involvement of macrophages. The inhibition of LA release impaired this protumor phenomenon. Mechanically, LA induced M2 macrophages through the AKT/ERK signaling pathway; subsequently, M2 macrophages secreted CCL8 and facilitated the proliferation and metastasis of CRC cells by activating the CCL8/CCR5/mTORC1 axis. This effect was inhibited by the antagonist or knockdown of CCR5. In conclusion, lactate-induced CCL8 in TAMs accelerated CRC proliferation and metastasis through the CCL8/CCR5/mTORC1 axis. Full article
(This article belongs to the Section Tumor Microenvironment)
Show Figures

Figure 1

16 pages, 1239 KB  
Review
CCR6 as a Potential Target for Therapeutic Antibodies for the Treatment of Inflammatory Diseases
by Sara Gómez-Melero and Javier Caballero-Villarraso
Antibodies 2023, 12(2), 30; https://doi.org/10.3390/antib12020030 - 20 Apr 2023
Cited by 24 | Viewed by 9731
Abstract
The CC chemokine receptor 6 (CCR6) is a G protein-coupled receptor (GPCR) involved in a wide range of biological processes. When CCR6 binds to its sole ligand CCL20, a signaling network is produced. This pathway is implicated in mechanisms related to many diseases, [...] Read more.
The CC chemokine receptor 6 (CCR6) is a G protein-coupled receptor (GPCR) involved in a wide range of biological processes. When CCR6 binds to its sole ligand CCL20, a signaling network is produced. This pathway is implicated in mechanisms related to many diseases, such as cancer, psoriasis, multiple sclerosis, HIV infection or rheumatoid arthritis. The CCR6/CCL20 axis plays a fundamental role in immune homeostasis and activation. Th17 cells express the CCR6 receptor and inflammatory cytokines, including IL-17, IL-21 and IL-22, which are involved in the spread of inflammatory response. The CCL20/CCR6 mechanism plays a crucial role in the recruitment of these pro-inflammatory cells to local tissues. To date, there are no drugs against CCR6 approved, and the development of small molecules against CCR6 is complicated due to the difficulty in screenings. This review highlights the potential as a therapeutic target of the CCR6 receptor in numerous diseases and the importance of the development of antibodies against CCR6 that could be a promising alternative to small molecules in the treatment of CCR6/CCL20 axis-related pathologies. Full article
(This article belongs to the Special Issue Antibodies: 10th Anniversary)
Show Figures

Figure 1

20 pages, 9314 KB  
Article
Early Oral Administration of Ginseng Stem-Leaf Saponins Enhances the Peyer’s Patch-Dependent Maternal IgA Antibody Response to a PEDV Inactivated Vaccine in Mice, with Gut Microbiota Involvement
by Fei Su, Junxing Li, Yin Xue, Bin Yu, Shiyi Ye, Lihua Xu, Yuan Fu and Xiufang Yuan
Vaccines 2023, 11(4), 830; https://doi.org/10.3390/vaccines11040830 - 12 Apr 2023
Cited by 5 | Viewed by 2732
Abstract
Neonatal piglets during the first week of life are highly susceptible to porcine epidemic diarrhoea virus (PEDV) infection, with mortality rates reaching 80–100%. Passive lactogenic immunity remains the most effective way to protect neonates from infection. Although safe, inactivated vaccines provide little or [...] Read more.
Neonatal piglets during the first week of life are highly susceptible to porcine epidemic diarrhoea virus (PEDV) infection, with mortality rates reaching 80–100%. Passive lactogenic immunity remains the most effective way to protect neonates from infection. Although safe, inactivated vaccines provide little or no passive protection. Here, we administered ginseng stem-leaf saponins (GSLS) to mice before parenteral immunization with an inactivated PEDV vaccine to investigate the effect of GSLS on the gut–mammary gland (MG)–secretory IgA axis. Early oral GSLS administration potently increased PEDV-specific IgA plasma cell generation in the intestine, facilitated intestinal IgA plasma cell migration to the MG by enhancing the chemokine receptor (CCR)10-chemokine ligand (CCL)28 interaction, and ultimately promoted specific IgA secretion into milk, which was dependent on Peyer’s patches (PPs). Additionally, GSLS improved the gut microbiota composition, especially increasing probiotic abundance, and these microflora members promoted the GSLS-enhanced gut–MG–secretory IgA axis response and were regulated by PPs. In summary, our findings highlight the potential of GSLS as an oral adjuvant for PEDV-inactivated vaccines and provide an attractive vaccination strategy for lactogenic immunity induction in sows. Further studies are required to evaluate the mucosal immune enhancement efficacy of GSLS in pigs. Full article
(This article belongs to the Section Vaccine Design, Development, and Delivery)
Show Figures

Figure 1

18 pages, 4303 KB  
Article
Association between an Increased Serum CCL5 Level and Pathophysiology of Degenerative Joint Disease in the Temporomandibular Joint in Females
by Haruhisa Watanabe, Takashi Iori, Ji-Won Lee, Takashi S. Kajii, Aya Takakura, Ryoko Takao-Kawabata, Yoshimasa Kitagawa, Yutaka Maruoka and Tadahiro Iimura
Int. J. Mol. Sci. 2023, 24(3), 2775; https://doi.org/10.3390/ijms24032775 - 1 Feb 2023
Cited by 5 | Viewed by 3055
Abstract
Degenerative joint disease of the temporomandibular joints (DJD-TMJ) clinically manifests with symptoms such as orofacial pain, joint sounds and limited jaw movements. Our research group previously reported the functional necessity of a chemokine-chemokine receptor axis of CCL5-CCR5 in osteoclasts. Accumulated studies reported that [...] Read more.
Degenerative joint disease of the temporomandibular joints (DJD-TMJ) clinically manifests with symptoms such as orofacial pain, joint sounds and limited jaw movements. Our research group previously reported the functional necessity of a chemokine-chemokine receptor axis of CCL5-CCR5 in osteoclasts. Accumulated studies reported that this axis was involved in the pathogenesis of bone and joint destructive diseases, suggesting CCL5 as a potent biomarker. This study investigated whether or not the serum level of CCL5 can be a biomarker of DJD-TMJ and concomitantly analyzed changes in the serum and urine levels of bone markers to see whether or not changes in the rate of bone metabolism were predisposing. We enrolled 17 female subjects with diagnosed DJD-TMJ and sexually and age-matched 17 controls. The serum CCL5 level in DJD-TMJ subjects was significantly higher than that in the control subjects. Multivariate analyses indicated an association between an augmented CCL5 level and the rate of bone metabolism, especially in relatively young DJD-TMJ subjects without other systemic symptoms. A principal component analysis of serum markers and our pharmacological experiment using a postmenopausal model of ovariectomized rats suggested that an augmented serum CCL5 level specifically reflected DJD-TMJ and that covert changes in the rate of bone metabolism predisposed individuals to DJD-TMJ. Full article
(This article belongs to the Special Issue Bone and Cartilage Biology)
Show Figures

Figure 1

Back to TopTop