Red light stimulates vasodilation through extracellular vesicle trafficking

Author(s):  
Dorothee Weihrauch ◽  
Agnes Keszler ◽  
Brian Lindemer ◽  
John Krolikowski ◽  
Nicole L. Lohr
Cancers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1039
Author(s):  
Clément Auger ◽  
Niki Christou ◽  
Aude Brunel ◽  
Aurélie Perraud ◽  
Mireille Verdier

Autophagy is a homeostatic process involved in the degradation of disabled proteins and organelles using lysosomes. This mechanism requires the recruitment of specialized proteins for vesicle trafficking, that may also be involved in other types of machinery such as the biogenesis and secretion of extracellular vesicles (EVs), and particularly small EVs called exosomes. Among these proteins, Rab-GTPases may operate in both pathways, thus representing an interesting avenue for further study regarding the interaction between autophagy and extracellular vesicle machinery. Both mechanisms are involved in the development of colorectal cancer (CRC), particularly in cancer stem cell (CSC) survival and communication, although they are not specific to CRC or CSCs. This highlights the importance of studying the crosstalk between autophagy and EVs biogenesis and release.


2001 ◽  
Vol 120 (5) ◽  
pp. A91-A91
Author(s):  
P TIETZ ◽  
P SPLINTER ◽  
M MCNIVEN ◽  
R HUEBERT ◽  
N LARUSSO

2019 ◽  
Author(s):  
S. Kohli ◽  
P. Markmeyer ◽  
F. Lochmann ◽  
M.M. Al-Dabet ◽  
S. Ranjan ◽  
...  

Reproduction ◽  
2000 ◽  
pp. 327-330 ◽  
Author(s):  
RJ Lucas ◽  
JA Stirland ◽  
YN Mohammad ◽  
AS Loudon

The role of the circadian clock in the reproductive development of Syrian hamsters (Mesocricetus auratus was examined in wild type and circadian tau mutant hamsters reared from birth to 26 weeks of age under constant dim red light. Testis diameter and body weights were determined at weekly intervals in male hamsters from 4 weeks of age. In both genotypes, testicular development, subsequent regression and recrudescence exhibited a similar time course. The age at which animals displayed reproductive photosensitivity, as exhibited by testicular regression, was unrelated to circadian genotype (mean +/- SEM: 54 +/- 3 days for wild type and 59 +/- 5 days for tau mutants). In contrast, our studies revealed a significant impact of the mutation on somatic growth, such that tau mutants weighed 18% less than wild types at the end of the experiment. Our study reveals that the juvenile onset of reproductive photoperiodism in Syrian hamsters is not timed by the circadian system.


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