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Related Concept Videos

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Multipotency of Hematopoietic Stem Cells

The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
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A hair follicle or HF is a small part of the skin that produces the hair shaft. Paul Gerson Unna was the first to observe a bulge in the human hair follicle's outer root sheath (ORS). The bulge is present between the sebaceous gland and the arrector pili muscle and is the niche for hair follicle stem cells (HFSCs). The bulge is also a niche for melanocyte stem cells, and their loss results in graying of hair. The HFSCs express Sox9 and Lhx2, which help them maintain stemness and prevent...
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Related Experiment Video

Updated: Jun 6, 2026

Generation of Human Primordial Germ Cell-like Cells at the Surface of Embryoid Bodies from Primed-pluripotency Induced Pluripotent Stem Cells
12:06

Generation of Human Primordial Germ Cell-like Cells at the Surface of Embryoid Bodies from Primed-pluripotency Induced Pluripotent Stem Cells

Published on: January 11, 2019

A conserved germline multipotency program.

Celina E Juliano1, S Zachary Swartz, Gary M Wessel

  • 1Department of Molecular and Cellular Biology, Brown University, Providence, RI 02912, USA.

Development (Cambridge, England)
|November 25, 2010
PubMed
Summary
This summary is machine-generated.

The germline, essential for reproduction, is maintained by a conserved multipotency program. This program utilizes genes like vasa, nanos, and piwi in both precursor and germline cells across diverse animals.

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Last Updated: Jun 6, 2026

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Area of Science:

  • Developmental Biology
  • Genetics
  • Evolutionary Biology

Background:

  • Germline segregation from somatic tissues is crucial for multicellular animal reproduction.
  • Germline segregation timing varies across taxa, occurring during or after embryogenesis.
  • Genes such as vasa, nanos, and piwi are known to be involved in germline development.

Purpose of the Study:

  • To investigate the conserved molecular mechanisms underlying germline multipotency.
  • To explore the role of specific genes (vasa, nanos, piwi) in maintaining multipotency.
  • To propose a conserved germline multipotency program across different animal groups.

Main Methods:

  • Comparative analysis of gene expression patterns in germline and multipotent precursor cells.
  • Review of existing literature on germline development and gene function in diverse taxa.
  • Bioinformatic analysis of conserved gene families (vasa, nanos, piwi).

Main Results:

  • Identified an overlapping set of genes (vasa, nanos, piwi) active in both multipotent precursors and germline cells.
  • Observed conservation of these genes and their functions across distinct animal lineages.
  • Demonstrated that these genes operate in cells with multipotent characteristics.

Conclusions:

  • A conserved germline multipotency program likely exists in animals.
  • This program utilizes key genes to maintain cell multipotency in both precursor and germline cells.
  • The function of this program in maintaining multipotency has been underappreciated.