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SUMMARY:BIOENGINEERING Seminar: Mechanisms that adjust and control the T c
 ell effector capacity
DTSTART:20211013T160000
DTEND:20211013T170000
DTSTAMP:20260510T081820Z
UID:736a657c38cd751e69a3c1ee2f45b48c123a3ebd992b16cac08e555f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Dr. med. Dietmar ZEHN\nFull Professor – Chair\, Divisi
 on of Animal Physiology and Immunology\nSchool of Life Sciences Weihenstep
 han\nTechnical University of Munich\nAbstract:\nActivated naïve T-cells b
 ranch into terminally differentiated effector and memory precursor T-cells
 . We found that this segregation coincides with a previously unrecognized 
 narrow window of differential sensitivity to nucleotide starvation. Specif
 ically\, we observed that low pyrimidine levels block the differentiation 
 of effector T-cells while numbers\, function and transcriptional profiles 
 of memory T-cells and their precursors remain unaltered. Moreover\, we mad
 e use of this differential sensitivity to eliminate effector cells and the
 ir precursors and gained thereby direct access to the earliest memory prog
 enitors. With the help of single cell resolved RNA sequencing and differen
 tiation trajectories\, we can use this phenomenon to demonstrate that effe
 ctor and memory precursor T-cells separate within the first rounds of divi
 sion after naïve T-cell activation and not later. Our data redefine the t
 iming of memory formation and we identified a metabolic checkpoint for T-c
 ell differentiation that could be targeted for vaccine purposes.\n\n\nIMPO
 RTANT NOTICE:\nAs a consequence of the ongoing Covid-19 pandemic\, in-pers
 on attendance of this seminar is subjected to some constraints:\n\n	Maximu
 m number of participants is limited to 80 (2/3 of room SV1717's nominal ca
 pacity): first come\, first served!\n	Valid COVID certificate and ID\, req
 uired to enter the meeting room\, will be checked at the entrance\n	Face m
 asks are mandatory for everyone in the seminar room (excepted the speaker 
 while presenting).\n\nThank you warmly for your understanding!\n\nAlternat
 ively\, the seminar can also be followed via Zoom web-streaming:\nhttps://
 epfl.zoom.us/j/67549423966
LOCATION:SV1717 https://epfl.zoom.us/j/67549423966
STATUS:CONFIRMED
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