scholarly journals Cerebellar foliation via non-uniform cell accumulation caused by fiber-guided migration of granular cells

Author(s):  
Hironori TAKEDA ◽  
Yoshitaka KAMEO ◽  
Takahiro YAMAGUCHI ◽  
Kazunori NAKAJIMA ◽  
Taiji ADACHI
Author(s):  
Mohinder S. Jarial

The axolotl is a strictly aquatic salamander in which the larval external gills are retained throughout life. The external gills of the adult axolotl have been studied by light and electron microscopy for ultrastructural evidence of ionic transport. The thin epidermis of the gill filaments and gill stems is composed of 3 cell types: granular cells, the basal cells and a sparce population of intervening Leydig cells. The gill epidermis is devoid of muscles, and no mitotic figures were observed in any of its cells.The granular cells cover the gill surface as a continuous layer (Fig. 1, G) and contain secretory granules of different forms, located apically (Figs.1, 2, SG). Some granules are found intimately associated with the apical membrane while others fuse with it and release their contents onto the external surface (Fig. 3). The apical membranes of the granular cells exhibit microvilli which are covered by a PAS+ fuzzy coat, termed “glycocalyx” (Fig. 2, MV).


1996 ◽  
Vol 22 (3) ◽  
pp. 248-255 ◽  
Author(s):  
J.-P. Lefauch eur ◽  
B. Gjata ◽  
A. Sebille

2019 ◽  
Author(s):  
William J. Olson ◽  
Bojana Jakic ◽  
Verena Labi ◽  
Katia Schöler ◽  
Michaela Kind ◽  
...  

Hypertension ◽  
1997 ◽  
Vol 29 (5) ◽  
pp. 1148-1155 ◽  
Author(s):  
Boye L. Jensen ◽  
Bernhard K. Krämer ◽  
Armin Kurtz

2020 ◽  
Vol 11 ◽  
Author(s):  
Huifeng Yu ◽  
Amy Yang ◽  
Ligong Liu ◽  
Jeffrey Y. W. Mak ◽  
David P. Fairlie ◽  
...  

2021 ◽  
Vol 22 (4) ◽  
pp. 2177
Author(s):  
Shulamit B. Wallach-Dayan ◽  
Dmytro Petukhov ◽  
Ronit Ahdut-HaCohen ◽  
Mark Richter-Dayan ◽  
Raphael Breuer

By dint of the aging population and further deepened with the Covid-19 pandemic, lung disease has turned out to be a major cause of worldwide morbidity and mortality. The condition is exacerbated when the immune system further attacks the healthy, rather than the diseased, tissue within the lung. Governed by unremittingly proliferating mesenchymal cells and increased collagen deposition, if inflammation persists, as frequently occurs in aging lungs, the tissue develops tumors and/or turns into scars (fibrosis), with limited regenerative capacity and organ failure. Fas ligand (FasL, a ligand of the Fas cell death receptor) is a key factor in the regulation of these processes. FasL is primarily found in two forms: full length (membrane, or mFasL) and cleaved (soluble, or sFasL). We and others found that T-cells expressing the mFasL retain autoimmune surveillance that controls mesenchymal, as well as tumor cell accumulation following an inflammatory response. However, mesenchymal cells from fibrotic lungs, tumor cells, or cells from immune-privileged sites, resist FasL+ T-cell-induced cell death. The mechanisms involved are a counterattack of immune cells by FasL, by releasing a soluble form of FasL that competes with the membrane version, and inhibits their cell death, promoting cell survival. This review focuses on understanding the previously unrecognized role of FasL, and in particular its soluble form, sFasL, in the serum of aged subjects, and its association with the evolution of lung disease, paving the way to new methods of diagnosis and treatment.


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