Results 261 to 270 of about 414,793 (308)
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2006
Surface cells in adult ovaries represent germ line-competent embryonic stem cells. They are a novel type of totipotent progenitors for distinct cell types including female germ cells/oocytes, with the potential for use in the autologous treatment of ovarian infertility and stem cell therapy.
Antonin, Bukovsky +3 more
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Surface cells in adult ovaries represent germ line-competent embryonic stem cells. They are a novel type of totipotent progenitors for distinct cell types including female germ cells/oocytes, with the potential for use in the autologous treatment of ovarian infertility and stem cell therapy.
Antonin, Bukovsky +3 more
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Molecular and Cellular Endocrinology, 2002
Transplantation of germ cells leads to restoration of spermatogenesis from spermatogonial stem cells. The original description of germ cell transplantation in 1994 has led to new approaches to explore many basic aspects of spermatogonial physiology.
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Transplantation of germ cells leads to restoration of spermatogenesis from spermatogonial stem cells. The original description of germ cell transplantation in 1994 has led to new approaches to explore many basic aspects of spermatogonial physiology.
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Current Opinion in Oncology, 2005
This review provides an overview of some of the recent pre-clinical and clinical developments in germ cell tumors.Recent epidemiological studies highlight the variations in the geographic and ethnic distribution of germ cell tumors and the changing incidence of seminoma versus nonseminoma in the population. Additional studies are continuing to identify
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This review provides an overview of some of the recent pre-clinical and clinical developments in germ cell tumors.Recent epidemiological studies highlight the variations in the geographic and ethnic distribution of germ cell tumors and the changing incidence of seminoma versus nonseminoma in the population. Additional studies are continuing to identify
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Germ cell lineage differentiation in non‐seminomatous germ cell tumours
The Journal of Pathology, 2005AbstractHuman germ cell tumours (GCTs) have long fascinated investigators for a number of reasons. Being pluripotential tumours, they can differentiate into both extra‐embryonic and embryonic (somatic) tissues. However, it has never been shown convincingly that, in humans, these tumours are truly totipotent and can also give rise to the germ lineage ...
Honecker, F +7 more
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Germ cell-Sertoli cell interactions
Reproduction, Fertility and Development, 1990The interactions between the Sertoli cells and germ cells are progressively becoming an important part of testicular physiology. This paper explores the cytological basis for these interactions, detailing the cyclic changes in the Sertoli cells in concert with the stages of the seminiferous cycle and the nature of the blood-testis barrier.
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Germ cells and germ cell transplantation.
The International journal of developmental biology, 1999The germ cell lineage in mice is established about a week after fertilization, in a group of cells that have left the epiblast and moved to an extraembryonic site. They migrate back into the embryo, along the hind gut and into the gonads. Germ cells in male and female embryos then pursue different pathways: in the testis the germ cells cease ...
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How germ granules promote germ cell fate
Nature Reviews GeneticsGerm cells are the only cells in the body capable of giving rise to a new organism, and this totipotency hinges on their ability to assemble membraneless germ granules. These specialized RNA and protein complexes are hallmarks of germ cells throughout their life cycle: as embryonic germ granules in late oocytes and zygotes, Balbiani bodies in immature ...
Melissa C. Pamula, Ruth Lehmann
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[Embryonal germ cells and germ cell tumors].
Verhandlungen der Deutschen Gesellschaft fur Pathologie, 2008Testicular germ cell tumors comprise of group of pluripotent tumors including seminomas and nonseminomas, arise from intratubular germ cell neoplasia and originate from the primordial germ cells/ gonocytes. Many well characterized markers of embryonic stem cells including CD9, PODXL and centromere-specific histone-H3-like protein CENPA are consistently
K, Biermann +14 more
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Male Germ Cell Transplantation
Reproduction in Domestic Animals, 2008ContentsTransplantation of male germ line stem cells from a donor animal to the testes of an infertile recipient was first described in 1994. Donor germ cells colonize the recipient’s testis and produce donor‐derived sperm, such that the recipient male can distribute the genetic material of the germ cell donor.
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Seminars in Surgical Oncology, 1999
Pediatric germ cell tumors represent a diverse group of tumors that present from in utero through adolescence at many nongonadal locations, from the neck to the sacrococcygeal region. Surgical resection remains the central element of management, and accurate surgical staging is essential to properly ascertain the correct risk-based treatment.
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Pediatric germ cell tumors represent a diverse group of tumors that present from in utero through adolescence at many nongonadal locations, from the neck to the sacrococcygeal region. Surgical resection remains the central element of management, and accurate surgical staging is essential to properly ascertain the correct risk-based treatment.
openaire +3 more sources