Results 41 to 50 of about 340,349 (250)

SMAD3 and HIF-1α orchestrate metabolic transition to aerobic glycolysis as a critical prerequisite for spontaneous reprogramming of spermatogonial stem cells

Stem Cell Research & Therapy
Spermatogonial stem cells (SSCs) possess the capacity for spontaneous reprogramming during in vitro culture, while the underlying mechanisms remain poorly understood, especially why the addition of epidermal growth factor (EGF), leukemia inhibitory ...
Yihui Cai, Jian Wen, Hongyang Liu, Rui Wei, Xiaoxiao Li, Yao Dong, Keren Cheng, Kang Zou   +7 more
doaj   +1 more source

Redundant mechanisms regulating the proliferation vs. differentiation balance in the C. elegans germline

Frontiers in Cell and Developmental Biology, 2022
The proper production of gametes over an extended portion of the life of an organism is essential for a high level of fitness. The balance between germline stem cell (GSC) proliferation (self-renewal) and differentiation (production of gametes) must be ...
Kara Vanden Broek, Xue Han, Dave Hansen
doaj   +1 more source

Interpreting the dependence of mutation rates on age and time [PDF]

, 2015
Mutations can arise from the chance misincorporation of nucleotides during DNA replication or from DNA lesions that are not repaired correctly. We introduce a model that relates the source of mutations to their accumulation with cell divisions, providing
Gao, Ziyue, Przeworski, Molly, Sella, Guy, Wyman, Minyoung J.   +3 more
core   +5 more sources

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Antagonistic control of Caenorhabditis elegans germline stem cell proliferation and differentiation by PUF proteins FBF-1 and FBF-2

eLife, 2020
Stem cells support tissue maintenance, but the mechanisms that coordinate the rate of stem cell self-renewal with differentiation at a population level remain uncharacterized. We find that two PUF family RNA-binding proteins FBF-1 and FBF-2 have opposite
Xiaobo Wang, Mary Ellenbecker, Benjamin Hickey, Nicholas J Day, Emily Osterli, Mikaya Terzo, Ekaterina Voronina   +6 more
doaj   +1 more source

Ovarian germline stem cells [PDF]

Stem Cell Research & Therapy, 2014
It has long been established that germline stem cells (GSCs) are responsible for lifelong gametogenesis in males, and some female invertebrates (for example, Drosophila) and lower vertebrates (for example, teleost fish and some prosimians) also appear to rely on GSCs to replenish their oocyte reserve in adulthood. However, the presence of such cells in
Dunlop, Cheryl, Telfer, Evelyn E, Anderson, Richard   +2 more
openaire   +3 more sources

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

Endocytosed dsRNAs induce lysosomal membrane permeabilization that allows cytosolic dsRNA translocation for Drosophila RNAi responses

Nature Communications
RNA interference (RNAi) is a gene-silencing mechanism triggered by the cytosolic entry of double-stranded RNAs (dsRNAs). Many animal cells internalize extracellular dsRNAs via endocytosis for RNAi induction.
Tsubasa Tanaka, Tamaki Yano, Shingo Usuki, Yoko Seo, Kento Mizuta, Maho Okaguchi, Maki Yamaguchi, Kazuko Hanyu-Nakamura, Noriko Toyama-Sorimachi, Katja Brückner, Akira Nakamura   +10 more
doaj   +1 more source

Complex patterns of male germline instability and somatic mosaicism in myotonic dystrophy type 1 [PDF]

, 2000
The genetic basis of myotonic dystrophy type 1 (DM1) is the expansion of a CTG repeat in the 3' untranslated region of DM1PK . Once into the disease range, the repeat becomes highly unstable and is biased toward expansion in both somatic and germline ...
Baiget, M., Gamez, J., Martorell, L., Monckton, D.G.   +3 more
core   +1 more source

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

FEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source