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Molecular Research in Reproductive Biology, 2nd Edition
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Molecular Research in Reproductive Biology, 2nd Edition

A special issue of Current Issues in Molecular Biology (ISSN 1467-3045). This special issue belongs to the section "Biochemistry, Molecular and Cellular Biology".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 1982

Special Issue Editor

Dr. Hoon Jang

E-Mail Website
Guest Editor
Department of Life Sciences, Jeonbuk National University, Jeonju 54896, Republic of Korea
Interests: ovarian follicle development; spermatogenesis; uterus implantation; optogenetics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The preservation of fertility is critical to maintaining successful pregnancies in both men and women, and the study of fertility is essential to enhance reproduction. Recently, infertility is increasing due to genetic or environmental factors that cause the abnormal development of reproductive organs or the death of germ cells. Therefore, it is crucial for drug development to identify the exact elements that cause the abnormal development of reproductive organs and toxicity, and to identify the associated molecular mechanisms. Additionally, researchers are currently in the process of developing biomedicine that actively uses microbiomes that coexist with humans on a molecular level; thus, research should focus on the relationship between intrauterine microbes and embryo implantation ability. Therefore, the study of molecular mechanisms in reproductive biology could provide better knowledge to overcome infertility associated with the protection and development of the reproductive system. For this Special Issue, we invite potential researchers working on revealing the causes of infertility and solving this problem by investigating the molecular biology of the development, differentiation, and toxicity of reproductive organs.

Dr. Hoon Jang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Current Issues in Molecular Biology is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • reproductive biology
  • assisted reproductive technology
  • ovarian follicle development
  • spermatogenesis
  • infertility

Published Papers (3 papers)

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Research

16 pages, 2785 KiB  
Article
Association between KRAS and PIK3CA Mutations and Progesterone Resistance in Endometriotic Epithelial Cell Line
by Kosuke Kanno, Kentaro Nakayama, Sultana Razia, Sohel Hasibul Islam, Zahan Umme Farzana, Shahataj Begum Sonia, Hitomi Yamashita, Masako Ishikawa, Tomoka Ishibashi, Kayo Imamura, Tohru Kiyono and Satoru Kyo
Curr. Issues Mol. Biol. 2024, 46(4), 3579-3594; https://doi.org/10.3390/cimb46040224 - 19 Apr 2024
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Abstract
Although endometriosis is a benign disease, it is associated with cancer-related gene mutations, such as KRAS or PIK3CA. Endometriosis is associated with elevated levels of inflammatory factors that cause severe pain. In a previous study, we demonstrated that KRAS or PIK3CA mutations [...] Read more.
Although endometriosis is a benign disease, it is associated with cancer-related gene mutations, such as KRAS or PIK3CA. Endometriosis is associated with elevated levels of inflammatory factors that cause severe pain. In a previous study, we demonstrated that KRAS or PIK3CA mutations are associated with the activation of cell proliferation, migration, and invasion in a patient-derived immortalized endometriotic cell line, HMOsisEC10. In this study, we investigated the effects of these mutations on progesterone resistance. Since the HMOsisEC10 had suppressed progesterone receptor (PR) expression, we transduced PR-B to HMOsisEc10 cell lines including KRAS mutant and PIK3CA mutant cell lines. We conducted a migration assay, invasion assay, and MTT assay using dienogest and medroxyprogestrone acetate. All cell lines showed progesterone sensitivity with or without mutations. Regarding inflammatory factors, real-time quantitative RT-PCR revealed that the KRAS mutation cell line exhibited no suppression of Cox-2 and mPGES-1 on progesterone treatment, whereas IL-6, MCP-1, VEGF, and CYP19A1 were significantly suppressed by progesterone in both mutated cell lines. Our results suggest that KRAS mutation and PIK3CA mutation in endometriotic cells may not be associated with progesterone resistance in terms of aggressiveness. However, KRAS mutations may be associated with progesterone resistance in the context of pain. Full article
(This article belongs to the Special Issue Molecular Research in Reproductive Biology, 2nd Edition)
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10 pages, 1591 KiB  
Communication
Frequency of Gene Polymorphisms in Admixed Venezuelan Women with Recurrent Pregnancy Loss: Microsomal Epoxy Hydroxylase (rs1051740) and Enos (rs1799983)
by María Johanna Peña, Claudia Valentina De Sanctis, Juan Bautista De Sanctis and Jenny Valentina Garmendia
Curr. Issues Mol. Biol. 2024, 46(4), 3460-3469; https://doi.org/10.3390/cimb46040217 - 17 Apr 2024
Viewed by 604
Abstract
Recurrent pregnancy loss (RPL) affects around 2% of women of reproductive age. Primary RPL is defined by ≥2 pregnancy losses and no normal birth delivery. In secondary RPL, the losses are after a normal pregnancy and delivery. Most cases have no clear aetiology, [...] Read more.
Recurrent pregnancy loss (RPL) affects around 2% of women of reproductive age. Primary RPL is defined by ≥2 pregnancy losses and no normal birth delivery. In secondary RPL, the losses are after a normal pregnancy and delivery. Most cases have no clear aetiology, although primary cases are the most complex. Several gene single nucleotide polymorphisms (SNPs) have been associated with RPL. The frequency of some SNPs is increased in women suffering from RLP from Asian or Caucasian races; however, in admixed populations, the information on possible genetic links is scarce and contradictory. This study aimed to assess the frequency of two SNPs present in two different enzymes involved in medical conditions observed during pregnancy. It is a case–control study. Microsomal epoxy hydrolase (mEPH) is involved in detoxifying xenobiotics, is present in the ovaries, and is hormonally regulated. The endothelial nitric oxide synthase (NOS3) that forms nitric is involved in vascular tone. Two SNPs, rs1051740 (mEPH) and rs1799983 (NOS3), were assessed. The study included 50 controls and 63 primary RPL patients. The frequency of mutated alleles in both SNPs was significantly higher in patients (p < 0.05). Double-mutated homozygotes were encountered only in RPL patients (p < 0.05). Genetic polymorphisms rs1051740 and rs1799983 may be involved in primary RPL in the Venezuelan admix population. Genetic studies could provide crucial information on the aetiology of primary RPL. Full article
(This article belongs to the Special Issue Molecular Research in Reproductive Biology, 2nd Edition)
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19 pages, 85340 KiB  
Article
Unveiling the Ovarian Cell Characteristics and Molecular Mechanism of Prolificacy in Goats via Single-Nucleus Transcriptomics Data Analysis
by Sanbao Zhang, Yirong Wei, Xiaotong Gao, Ying Song, Yanna Huang and Qinyang Jiang
Curr. Issues Mol. Biol. 2024, 46(3), 2301-2319; https://doi.org/10.3390/cimb46030147 - 11 Mar 2024
Viewed by 592
Abstract
Increases in litter size, which are influenced by ovulation, are responsible for between 74% and 96% of the economic value of genetic progress, which influences selection. For the selection and breeding of highly prolific goats, genetic mechanisms underlying variations in litter size should [...] Read more.
Increases in litter size, which are influenced by ovulation, are responsible for between 74% and 96% of the economic value of genetic progress, which influences selection. For the selection and breeding of highly prolific goats, genetic mechanisms underlying variations in litter size should be elucidated. Here, we used single-nucleus RNA sequencing to analyze 44,605 single nuclei from the ovaries of polytocous and monotocous goats during the follicular phase. Utilizing known reference marker genes, we identified 10 ovarian cell types characterized by distinct gene expression profiles, transcription factor networks, and reciprocal interaction signatures. An in-depth analysis of the granulosa cells revealed three subtypes exhibiting distinct gene expression patterns and dynamic regulatory mechanisms. Further investigation of cell-type-specific prolificacy-associated transcriptional changes elucidated that “downregulation of apoptosis”, “increased anabolism”, and “upstream responsiveness to hormonal stimulation” are associated with prolificacy. This study provides a comprehensive understanding of the cell-type-specific mechanisms and regulatory networks in the goat ovary, providing insights into the molecular mechanisms underlying goat prolificacy. These findings establish a vital foundation for furthering understanding of the molecular mechanisms governing folliculogenesis and for improving the litter size in goats via molecular design breeding. Full article
(This article belongs to the Special Issue Molecular Research in Reproductive Biology, 2nd Edition)
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