Researchers Put Embryo Development 'On Hold' in Mice

Putting stem cells into hibernation has potential implications for infertility, cancer, regenerative medicine
Source: Cancercompass News: Other Cancer - Category: Cancer & Oncology Source Type: news

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Publication date: 6 November 2018Source: Cell Reports, Volume 25, Issue 6Author(s): Brian P. Hermann, Keren Cheng, Anukriti Singh, Lorena Roa-De La Cruz, Kazadi N. Mutoji, I-Chung Chen, Heidi Gildersleeve, Jake D. Lehle, Max Mayo, Birgit Westernströer, Nathan C. Law, Melissa J. Oatley, Ellen K. Velte, Bryan A. Niedenberger, Danielle Fritze, Sherman Silber, Christopher B. Geyer, Jon M. Oatley, John R. McCarreySummarySpermatogenesis is a complex and dynamic cellular differentiation process critical to male reproduction and sustained by spermatogonial stem cells (SSCs). Although patterns of gene expression have been...
Source: Cell Reports - Category: Cytology Source Type: research
Publication date: Available online 3 November 2018Source: Best Practice &Research Clinical Endocrinology &MetabolismAuthor(s): Marc Kanbar, Francesca di Michele, Christine WynsAbstractTransplantation of own cryostored spermatogonial stem cells (SSCs) is a promising technique for fertility restoration when the SSC pool has been depleted.In this regard, cryopreservation of pre-pubertal testicular tissue or SSCs suspensions before gonadotoxic therapies is ethically accepted and increasingly proposed.SSC transplantation has also been considered to treat other causes of infertility relying on the possibility of propagat...
Source: Best Practice and Research Clinical Endocrinology and Metabolism - Category: Endocrinology Source Type: research
Publication date: Available online 1 November 2018Source: Stem Cell ReportsAuthor(s): Kaoru Miyazaki, Matthew T. Dyson, John S. Coon V, Yuichi Furukawa, Bahar D. Yilmaz, Tetsuo Maruyama, Serdar E. BulunSummaryDefective endometrial stromal fibroblasts (EMSFs) contribute to uterine factor infertility, endometriosis, and endometrial cancer. Induced pluripotent stem cells (iPSCs) derived from skin or bone marrow biopsies provide a patient-specific source that can be differentiated to various cells types. Replacement of abnormal EMSFs is a potential novel therapeutic approach for endometrial disease; however, the methodology or...
Source: Stem Cell Reports - Category: Stem Cells Source Type: research
Young boys are often left infertile after childhood cancer treatment, with no way of preserving their sperm. Now, new research might allow them to father children.
Source: Forbes.com Healthcare News - Category: Pharmaceuticals Authors: Source Type: news
Researchers have figured out how to grow human stem cells to help children treated for cancer who become infertile later in life.
Source: Health News - UPI.com - Category: Consumer Health News Source Type: news
Publication date: Available online 10 October 2018Source: Trends in GeneticsAuthor(s): Aaron C. Goldstrohm, Traci M. Tanaka Hall, Katherine M. McKenneyMammalian Pumilio proteins, PUM1 and PUM2, are members of the PUF family of sequence-specific RNA-binding proteins. In this review, we explore their mechanisms, regulatory networks, biological functions, and relevance to diseases. Pumilio proteins bind an extensive network of mRNAs and repress protein expression by inhibiting translation and promoting mRNA decay. Opposingly, in certain contexts, they can activate protein expression. Pumilio proteins also regulate noncoding (...
Source: Trends in Genetics - Category: Genetics & Stem Cells Source Type: research
Abstract Mammalian Pumilio proteins, PUM1 and PUM2, are members of the PUF family of sequence-specific RNA-binding proteins. In this review, we explore their mechanisms, regulatory networks, biological functions, and relevance to diseases. Pumilio proteins bind an extensive network of mRNAs and repress protein expression by inhibiting translation and promoting mRNA decay. Opposingly, in certain contexts, they can activate protein expression. Pumilio proteins also regulate noncoding (nc)RNAs. The ncRNA, ncRNA activated by DNA damage (NORAD), can in turn modulate Pumilio activity. Genetic analysis provides new insig...
Source: Trends in Genetics : TIG - Category: Genetics & Stem Cells Authors: Tags: Trends Genet Source Type: research
Abstract Stem cells are ideal seeding cells, which have the potential for self-renewal and multiple differentiation, and they play a fundamental role in maintaining homeostasis and regenerating and repairing tissue. The discovery of female germline stem cells (FGSCs) brings much hope for the postnatal renewal of oocytes and solving some female infertility problems. Ovarian function declines with increasing female age. Moreover, ovarian germline stem cell niche-aging could be the main cause of ovarian senescence, which ultimately leads to decreased follicle generation, declining female fertility, and age-related di...
Source: Systems Biology in Reproductive Medicine - Category: Reproduction Medicine Authors: Tags: Syst Biol Reprod Med Source Type: research
Authors: Zarandi NP, Galdon G, Kogan S, Atala A, Sadri-Ardekani H Abstract While the survival rate of children with cancer is increasing, preserving fertility for prepubertal boys is still a challenge. Although intracytoplasmic sperm injection (ICSI) using frozen sperms has revolutionized infertility treatment, it is not applicable for the patients who undergo chemotherapy before puberty since spermatogenesis has not begun. Therefore, preserving spermatogonial stem cells (SSCs) as an experimental option can be provided to prepubertal patients at a risk of damage or loss of their SSCs due to cancer treatments and de...
Source: Stem Cells and Cloning: Advances and Applications - Category: Stem Cells Tags: Stem Cells Cloning Source Type: research
In this study, we reported a comprehensive genome-wide DNA methylation landscape in chicken germ cells, and transcriptomic dynamics was also presented. By uncovering DNA methylation patterns on individual genes, some genes accurately modulated by DNA methylation were found to be associated with cancers and virus infection, e.g., AKT1 and CTNNB1. Chicken-unique markers were also discovered for identifying male germ cells. Importantly, integrated epigenetic mechanisms were explored during male germ cell differentiation, which provides deep insight into the epigenetic processes associated with male germ cell differentiation a...
Source: Stem Cell Reports - Category: Stem Cells Source Type: research
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