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New Advances in Osteoarthritis: Molecular Perspective

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Pathology, Diagnostics, and Therapeutics".

Deadline for manuscript submissions: 31 August 2024 | Viewed by 942

Special Issue Editor


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Guest Editor
Department of Anatomy, University of Tartu, Ravila 19, 50411 Tartu, Estonia
Interests: osteoarthritis; biomarker; cartilage intermediate layer proteins (CILP); electron microscopy; immunohistochemistry; molecular pathology

Special Issue Information

Dear Colleagues,

One of the most common joint diseases is osteoarthritis, which occurs primarily in elderly people, but due to obesity, the incidence of osteoarthritis has also increased among young people. Although the causes of osteoarthritis are still largely unclear, thanks to molecular research, it is understood that changes at the molecular level contribute to the disease. Cartilage intermediate layer proteins (CILP) are now recognized as one of the important cartilage structural molecules involved in the development of OA. The identification of new biomarkers, molecular and gene expression processes would be a major step forward in the diagnosis and treatment of osteoarthritis. It is not known which factors trigger the pathogenetic processes, and researchers should pay attention to finding target molecules that would enable the diagnosis of early starting processes in the joints and slow down or stop their development.

This Special Issue is focused on osteoarthritis and will publish original articles as well as reviews that present novel molecular, pathological and pathophysiological mechanisms.

Dr. Marina Aunapuu
Guest Editor

Manuscript Submission Information

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Keywords

  • animal models
  • biomarkers
  • CILP
  • chondrocytes
  • electron microscopy
  • extracellular matrix
  • gene expression
  • immunohistochemistry
  • mechanisms
  • molecular biology
  • osteoarthritis
  • pathology
  • pericellular matrix
  • synovial membrane

Published Papers (1 paper)

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Research

13 pages, 1715 KiB  
Article
Fibrocyte Phenotype of ENTPD1+CD55+ Cells and Its Association with Pain in Osteoarthritic Synovium
by Maho Tsuchiya, Yoshihisa Ohashi, Kensuke Fukushima, Yusei Okuda, Arisa Suto, Takashi Matsui, Yoshio Kodera, Masashi Sato, Ayumi Tsukada, Gen Inoue, Masashi Takaso and Kentaro Uchida
Int. J. Mol. Sci. 2024, 25(7), 4085; https://doi.org/10.3390/ijms25074085 - 06 Apr 2024
Viewed by 462
Abstract
Osteoarthritis (OA) is a prevalent degenerative joint disorder characterized by cartilage erosion, structural changes, and inflammation. Synovial fibroblasts play a crucial role in OA pathophysiology, with abnormal fibroblastic cells contributing significantly to joint pathology. Fibrocytes, expressing markers of both hematopoietic and stromal cells, [...] Read more.
Osteoarthritis (OA) is a prevalent degenerative joint disorder characterized by cartilage erosion, structural changes, and inflammation. Synovial fibroblasts play a crucial role in OA pathophysiology, with abnormal fibroblastic cells contributing significantly to joint pathology. Fibrocytes, expressing markers of both hematopoietic and stromal cells, are implicated in inflammation and fibrosis, yet their marker and role in OA remain unclear. ENTPD1, an ectonucleotidase involved in purinergic signaling and expressed in specific fibroblasts in fibrotic conditions, led us to speculate that ENTPD1 plays a role in OA pathology by being expressed in fibrocytes. This study aimed to investigate the phenotype of ENTPD1+CD55+ and ENTPD1−CD55+ synovial fibroblasts in OA patients. Proteomic analysis revealed a distinct molecular profile in ENTPD1+CD55+ cells, including the upregulation of fibrocyte markers and extracellular matrix-related proteins. Pathway analysis suggested shared mechanisms between OA and rheumatoid arthritis. Correlation analysis revealed an association between ENTPD1+CD55+ fibrocytes and resting pain in OA. These findings highlight the potential involvement of ENTPD1 in OA pain and suggest avenues for targeted therapeutic strategies. Further research is needed to elucidate the underlying molecular mechanisms and validate potential therapeutic targets. Full article
(This article belongs to the Special Issue New Advances in Osteoarthritis: Molecular Perspective)
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