The novel function of self-renewal factor of spermatogonial stem cells is identified

(Shinshu University) A research team found a novel function of FGF2 in mammalian testis. Although it has demonstrated that both GDNF and FGF2 are the self-renewal factor for spermatogonial stem cells (SSCs) in vitro, present study revealed that FGF2 acts to facilitate the differentiation of SSCs in vivo. The understanding of molecular mechanism regulating SSCs has potential for future applications for male infertility treatment.
Source: EurekAlert! - Biology - Category: Biology Source Type: news

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Intrauterine adhesion (IUA) is a major cause of female secondary infertility. We previously demonstrated that menstrual blood-derived stromal cell (MenSC) transplantation helped severe IUA patients have pregna...
Source: Stem Cell Research and Therapy - Category: Stem Cells Authors: Tags: Research Source Type: research
Abstract Chemotherapy-induced ovarian aging not only increases the risk for early menopause-related complications but also results in infertility in young female cancer survivors. Oogonial stem cells have the ability to generate new oocytes and thus provide new opportunities for treating ovarian aging and female infertility. Resveratrol (3,5,4'-trihydroxy-trans-stilbene) is a natural phenol derived from plants, that has been shown to have positive effects on longevity and redox flow in lipid metabolism and a preventive function against certain tumors. To evaluate whether resveratrol could promote the repair of oog...
Source: Aging - Category: Biomedical Science Authors: Tags: Aging (Albany NY) Source Type: research
Abstract Asherman's Syndrome or Intrauterine adhesions is an acquired uterine condition where fibrous scarring forms within the uterine cavity, resulting in reduced menstrual flow, pelvic pain and infertility. Until recently, the molecular mechanisms leading to the formation of fibrosis were poorly understood, and the treatment of Asherman's syndrome has largely focused on hysteroscopic resection of adhesions, hormonal therapy, and physical barriers. Numerous studies have begun exploring the molecular mechanisms behind the fibrotic process underlying Asherman's Syndrome as well as the role of stem cells in the reg...
Source: Current Stem Cell Research and Therapy - Category: Stem Cells Authors: Tags: Curr Stem Cell Res Ther Source Type: research
Abstract Infertility represents a major medical, economic, and psychological problem. Stem cells therapy for infertility has a great interest nowadays especially for cancer survivors at pre-reproductive and reproductive age.  Thirty-two adult male albino rats were used, divided equally into four groups; Group I (Control group) received isotonic saline intraperitoneally (i.p.) as vehicle. Group II (Cisplatin-treated group) received Cisplatin (i.p.) at a single dose of 7 mg/kg, and then were sacrificed after 5 days. Group III (Stem-cell-treated group) received Cisplatin (i.p.) at a single dose of 7 mg/kg, ...
Source: Ultrastructural Pathology - Category: Pathology Authors: Tags: Ultrastruct Pathol Source Type: research
Publication date: 5 February 2019Source: Cell Reports, Volume 26, Issue 6Author(s): Abhishek Sohni, Kun Tan, Hye-Won Song, Dana Burow, Dirk G. de Rooij, Louise Laurent, Tung-Chin Hsieh, Raja Rabah, Saher Sue Hammoud, Elena Vicini, Miles F. WilkinsonSummarySpermatogenesis has been intensely studied in rodents but remains poorly understood in humans. Here, we used single-cell RNA sequencing to analyze human testes. Clustering analysis of neonatal testes reveals several cell subsets, including cell populations with characteristics of primordial germ cells (PGCs) and spermatogonial stem cells (SSCs). In adult testes, we identi...
Source: Cell Reports - Category: Cytology Source Type: research
(University of California - San Diego) Using a leading-edge technique, UC San Diego School of Medicine researchers defined the cell types in both newborn and adult human testes and identified biomarkers for spermatogonial stem cells, opening a path for new strategies to treat male infertility.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news
Bone Marrow Transplant (BMT) is a potentially curative treatment for malignant and non-malignant blood disorders. Current regimens for patient preparation, or conditioning, prior to BMT limit the use of this curative procedure due to regimen-related mortality and morbidities, including risks of organ toxicity, infertility and secondary malignancies. To safely condition patients for BMT, we are developing antibody drug conjugates (ADCs) targeting CD45, a target expressed throughout the hematopoietic system to specifically deplete both hematopoietic stem cell (HSCs) and immune cells prior to transplant.
Source: Biology of Blood and Marrow Transplantation - Category: Hematology Authors: Tags: 40 Source Type: research
This article reviews the latest progress of researches on exosomes in diseases lead to infertility. PMID: 30674267 [PubMed - as supplied by publisher]
Source: Current Stem Cell Research and Therapy - Category: Stem Cells Authors: Tags: Curr Stem Cell Res Ther Source Type: research
Authors: Yu J, Chen B, Zheng B, Qiao C, Chen X, Yan Y, Luan X, Xie B, Liu J, Shen C, He Z, Hu X, Liu M, Li H, Shao Q, Fang J Abstract Germ cell maturation is essential for spermatogenesis and testis homeostasis. ATP synthase serves significant roles in energy storage in germ cell survival and is catalyzed by alterations in the mitochondrial membrane proton concentration. The intrinsic cellular mechanisms governing stem cell maturation remain largely unknown. In the present study, in vivo RNA interference (RNAi) screening of major ATP synthase subunits was performed, and the function of ATP synthase for male fe...
Source: Molecular Medicine Reports - Category: Molecular Biology Tags: Mol Med Rep Source Type: research
When Noah Shulman was born a few days after Christmas 2016, his parents Kristelle and Evan had no reason to worry about him. The pregnancy went smoothly, and so did the birth. But within a few days of taking his first breath, Noah began to struggle. He wasn’t feeding, so he started losing weight. He was also lethargic. Several pediatricians reassured the Shulmans that they were probably just overly sensitive to Noah’s symptoms because Kristelle is a nurse and Evan is a physician assistant–a case of first-time-parent-white-coat syndrome. “They kind of dismissed us as neurotic parents,” says Eva...
Source: TIME: Science - Category: Science Authors: Tags: Uncategorized fertility Research Source Type: news
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