Changes in metabolites can regulate earliest stages of development

(University of Washington Health Sciences/UW Medicine) Changes in cellular metabolites, the simple compounds generated during life-sustaining chemical activities in cells, have been shown to regulate embryonic stem cell development at the earliest stages of life. The recent findings should improve scientists' ability to use embryonic stem cells to grow new tissues and organs to replace those damaged by disease or injury. The findings also could lead to new treatments for common disorders ranging from infertility to cancer.
Source: EurekAlert! - Medicine and Health - Category: Global & Universal Source Type: news

Related Links:

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
(University of Maryland) A UMD researcher uncovered new mechanisms that dictate the development of germline stem cells. Mechanisms were found to be associated with genes responsible for cancers and viral infections among other major diseases. Markers used to identify male germ cells were discovered, exploring how environmental factors or epigenetics affect these cells and providing significant insight into treatments for male infertility. Findings set the stage for chickens as a more prominent model organism for stem cell research.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news
A new study in the journal Nature Cell Biology has uncovered information about a key stage that human embryonic cells must pass through just before an embryo implants. The research, led by UCLA biologist Amander Clark, could help explain certain causes of infertility and spontaneous miscarriage.Infertility affects around 10 percent of the U.S. population, and roughly 15 to 20 percent of all pregnancies in the U.S. end in miscarriage. In many cases, the causes of infertility and miscarriage are unknown.A team led by Clark, a UCLA professor of molecular cell and developmental biology and member of the  Eli and Edythe Br...
Source: UCLA Newsroom: Health Sciences - Category: Universities & Medical Training Source Type: news
Fanconi anemia (FA) is a relatively rare genetic condition with primary sequelae of bone marrow failure, hematologic malignancies, and squamous cell cancers (SCC) of head/neck, breast, and anogenital tract. Many patients require hematopoietic stem cell transplant (bone marrow transplant, BMT) to treat marrow dysfunction, but risk of future malignancies remains. Female patients are at risk of reproductive complications, including infertility related to primary ovarian insufficiency (POI) and gynecologic cancers.
Source: Journal of Pediatric and Adolescent Gynecology - Category: OBGYN Authors: Source Type: research
Abstract Forkhead box A2 (FOXA2) is a pioneer transcription factor involved in organ development, function and cancer. In the uterus, FOXA2 is essential for pregnancy and expressed specifically in the glands of the endometrium loss of FOXA2 function occurs during development of endometrial cancer in humans. The present study describes the development of a mouse model for conditional expression of mouse FOXA2. Using a system consisting of a minigene located at the Rosa26 locus, a CAG-S-mFOXA2 allele was generated in embryonic stem cells and subsequently in mice; before activation, the minigene is silent due to a fl...
Source: Endocrinology - Category: Endocrinology Authors: Tags: Endocrinology Source Type: research
UCLA researchers have made new inroads into understanding germ cell tumors, a diverse and rare group of cancers that begin in germ cells — the cells that develop into sperm and eggs. The researchers developed a protocol to recreate germ cell tumor cells from stem cells and used the new model to study the genetics of the cancer.Their findings could point the way toward new drugs to treat germ cell tumors, which account for around 3 percent of all cases of childhood and adolescent cancer.The study, published in Stem Cell Research, was led by Amander Clark, a UCLA professor of molecular cell and developmental biology an...
Source: UCLA Newsroom: Health Sciences - Category: Universities & Medical Training Source Type: news
This study was funded by the National Health and Medical Research Council, the Victorian Cancer Agency and a scholarship from the Chinese Scholarship Council. The authors have no conflicts of interest to declare.
Source: Molecular Human Reproduction - Category: Molecular Biology Source Type: research
Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to online resources, and much more. This content is...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Publication date: Available online 6 January 2018 Source:Molecular and Cellular Endocrinology Author(s): Melissa Tharmalingam, Anne Jorgensen, Rod T. Mitchell The mammalian testis has two main roles, production of gametes for reproduction and synthesis of steroid- and peptide hormones for masculinization. These processes are tightly regulated and involve complex interactions between a number of germ and somatic cell-types that comprise a unique microenvironment known as the germ stem cell niche. In humans, failure of normal testicular development or function is associated with susceptibility to a variety of male reproduct...
Source: Molecular and Cellular Endocrinology - Category: Endocrinology Source Type: research
More News: Cancer | Cancer & Oncology | Chemistry | Health | Infertility | International Medicine & Public Health | Reproduction Medicine | Stem Cell Therapy | Stem Cells | University of Washington