scholarly journals Multipotent somatic stem cells contribute to the stem cell niche in the Drosophila testis

Nature ◽  
2008 ◽  
Vol 454 (7208) ◽  
pp. 1132-1136 ◽  
Author(s):  
Justin Voog ◽  
Cecilia D’Alterio ◽  
D. Leanne Jones
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Stem Cell Niche ◽  
Somatic Stem Cells ◽  
Drosophila Testis ◽  
Cell Niche

Tissue Stem Cells and Stem Cell Niche of the Human Vocal Fold

2020 ◽  
Vol 71 (2) ◽  
pp. 211-213
Author(s):  
K. Sato ◽  
S. Chitose ◽  
K. Sato ◽  
F. Sato ◽  
T. Kurita ◽  
...  
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Stem Cell Niche ◽  
Vocal Fold ◽  
Cell Niche

Wnt6 regulates the homeostasis of the stem cell niche via Rac1-and Cdc42-mediated noncanonical Wnt signalling pathways in Drosophila testis

2021 ◽  
Vol 402 (1) ◽  
pp. 112511
Author(s):  
Min Wang ◽  
Xiaojin Luan ◽  
Yidan Yan ◽  
Qianwen Zheng ◽  
Wanyin Chen ◽  
...  
Keyword(s):  
Stem Cell ◽  
Stem Cell Niche ◽  
Wnt Signalling ◽  
Signalling Pathways ◽  
Drosophila Testis ◽  
Cell Niche

scholarly journals Immunostaining of Lgr5, an Intestinal Stem Cell Marker, in Normal and Premalignant Human Gastrointestinal Tissue

2008 ◽  
Vol 8 ◽  
pp. 1168-1176 ◽  
Author(s):  
Laren Becker ◽  
Qin Huang ◽  
Hiroshi Mashimo
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Stem Cell Niche ◽  
Intestinal Stem Cells ◽  
Stem Cell Marker ◽  
Tumor Initiating Cells ◽  
Colonic Adenomas ◽  
Potential Marker ◽  
Cell Niche ◽  
Crypt Base

Lgr5 has recently been identified as a murine marker of intestinal stem cells. Its expression has not been well characterized in human gastrointestinal tissues, but has been reported in certain cancers. With the increasing appreciation for the role of cancer stem cells or tumor-initiating cells in certain tumors, we sought to explore the expression of Lgr5 in normal and premalignant human gastrointestinal tissues. Using standard immunostaining, we compared expression of Lgr5 in normal colon and small intestine vs. small intestinal and colonic adenomas and Barrett's esophagus. In the normal tissue, Lgr5 was expressed in the expected stem cell niche, at the base of crypts, as seen in mice. However, in premalignant lesions, Lgr5+cells were not restricted to the crypt base. Additionally, their overall numbers were increased. In colonic adenomas, Lgr5+cells were commonly found clustered at the luminal surface and rarely at the crypt base. Finally, we compared immunostaining of Lgr5 with that of CD133, a previously characterized marker for tumor-initiating cells in colon cancer, and found that they identified distinct subpopulations of cells that were in close proximity, but did not costain. Our findings suggest that (1) Lgr5 is a potential marker of intestinal stem cells in humans and (2) loss of restriction to the stem cell niche is an early event in the premalignant transformation of stem cells and may play a role in carcinogenesis.

scholarly journals Lin28 is a critical factor in the function and aging of Drosophila testis stem cell niche

Aging ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 855-873
Author(s):  
Perinthottathil Sreejith ◽  
Wijeong Jang ◽  
Van To ◽  
Yong Hun Jo ◽  
Benoit Biteau ◽  
...  
Keyword(s):  
Stem Cell ◽  
Stem Cell Niche ◽  
Critical Factor ◽  
Drosophila Testis ◽  
Cell Niche
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