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The development of all multicellular organisms starts with the fusion of haploid cells called sperm and egg to form a diploid zygote. A zygote is a totipotent cell that can develop into a complete organism. The zygote undergoes cell division or cleavage to form an 8-cell mass. Until this stage, the cells are spherical, loosely attached, and remain totipotent. Totipotent cells are capable of developing both the embryonic and the extraembryonic tissues. However, as they continue to divide, they...
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Spermatogenesis is a complex process that involves the development of sperm cells from undifferentiated stem cells in the seminiferous tubules of the testes. The process is essential for the production of mature and functional sperm cells that are capable of fertilizing an egg.
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Gastrulation establishes the three primary tissues of an embryo: the ectoderm, mesoderm, and endoderm. This developmental process relies on a series of intricate cellular movements, which in humans transforms a flat, “bilaminar disc” composed of two cell sheets into a three-tiered structure. In the resulting embryo, the endoderm serves as the bottom layer, and stacked directly above it is the intermediate mesoderm, and then the uppermost ectoderm. Respectively, these tissue strata...
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Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
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Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
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Generation of Human Primordial Germ Cell-like Cells at the Surface of Embryoid Bodies from Primed-pluripotency Induced Pluripotent Stem Cells
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Primordial Germ Cells: Current Knowledge and Perspectives.

Aleksandar Nikolic1, Vladislav Volarevic1, Lyle Armstrong2

  • 1Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, 69 Svetozara Markovica Street, 34000 Kragujevac, Serbia.

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Summary
This summary is machine-generated.

Infertility affects many couples. Research into primordial germ cells (PGCs) derived from stem cells offers new hope for treating infertility by creating functional gametes.

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Area of Science:

  • Reproductive Biology
  • Stem Cell Science
  • Developmental Biology

Background:

  • Infertility is a common condition with diverse causes, often linked to a lack of functional gametes.
  • Primordial germ cells (PGCs) are the stem cells that develop into sperm and eggs.
  • Current treatments for infertility have limitations, especially when gamete production is impaired.

Purpose of the Study:

  • To review current knowledge on primordial germ cells (PGCs).
  • To explore the potential of PGCs derived from pluripotent stem cells for infertility treatment.
  • To discuss the research and medical applications of PGCs in reproductive medicine.

Main Methods:

  • Review of recent scientific literature on PGC development and stem cell differentiation.
  • Analysis of studies investigating in vitro differentiation of stem cells into PGCs.
  • Examination of research on the potential translation of animal studies to human applications.

Main Results:

  • Pluripotent stem cells can be differentiated into PGCs in vitro.
  • Successful generation of viable mouse pups from in vitro differentiated stem cells has been reported.
  • These advancements suggest a closer possibility for human application.

Conclusions:

  • PGCs derived from stem cells represent a promising therapeutic avenue for infertility.
  • Further research is needed to optimize protocols for human PGC generation and application.
  • The use of PGCs holds significant potential for both research and clinical treatment of infertility.