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April 01 - April 30

5 entries found

POSTPONED: ..
Start date: April 02
01:00 pm 02:00 pm

Description: 

 

5 most important publications:

1. Schöler HR, Ruppert S, Suzuki N, Chowdhury K, Gruss. New type of POU domain in germ line-specific protein Oct-4. Cloning and characterization of the germline-specific octamer binding protein Oct-4. Nature 344:435-9, 1990

2. Hübner K, Fuhrmann G, Christenso, LK, Kehler J, Reinbold, R, De La Fuente R, Wood J, Strauss III J, Boiani M, Schöler HR. Mouse embryonic stem cells in culture give rise to oocytes. Science 300:1251-6, 2003

3. Kim JB, Sebastiano V, Wu G, Araúzo-Bravo M, Sasse P, Gentile L, Ko K, Ruau D, Ehrich M, van den Boom D, Meyer J, Hübner K, Bernemann C, Ortmeier C, Zenke M, Fleischmann B, Zaehres H, Schöler HR. Oct4-induced pluripotency in adult neural stem cells. Cell 136:411-19, 2009

4. Han DW, Tapia N, Hermann A, Hemmer K, Höing S, Araúzo-Bravo MJ, Zaehres H, Wu G, Frank S, Moritz S, Greber B, Yang JH, Lee HT, Schwamborn JC, Storch A, Schöler HR. Direct reprogramming of fibroblasts into neural stem cells by defined factors. Cell Stem Cell 10(4):465-72, 2012

5. Velychko S, Adachi K, Kim KP, Hou Y, MacCarthy CM, Wu G, Schöler HR Excluding Oct4 from Yamanaka cocktail unleashes the developmental potential of iPSCs. Cell Stem Cell 25(6):737-753, 2019

Abstract:

A current aim in cell and developmental biology is to program cells at will. One way towards converting a given cell type into another one is achieved via a pluripotent stem cell state that resembles that of embryonic stem cells (ESCs). In most cases, somatic cells are pushed into a pluripotent state by the introduction of exogenous factors, mostly transcription factors. Reprogramming of somatic cells into pluripotent stem cells designated as induced pluripotent stem cells (iPSCs) was first described in 2006. Fibroblasts were used and initially required introduction of the virally expressed transcription factor quartet Oct4, Sox2, Klf4, and c-Myc (OSKM). We previously reported that Oct4 alone is sufficient for directly reprogramming adult mouse and human fetal neural stem cells into iPSCs, thus highlighting the crucial role played by Oct4 in the process. As we now show the combination of SKM is sufficient for reprogramming mouse somatic cells into iPSCs. Actually, SKM even activates the pluripotency network in Oct4-knockout fibroblasts. Retroviral silencing requires the simultaneous expression of Sox2 and c-Myc, perhaps accounting for the discrepancy with respect to previous studies that used retroviral vectors to generate iPSCs without Oct4. Reprogramming in the absence of exogenous Oct4 results in iPSCs that are characterized by more faithful gene expression and greatly improved developmental potential. Our data suggests that expression of exogenous Oct4 during reprogramming leads to off-target gene activation, thereby worsening the quality of the generated iPSCs with major implications for further development and application of iPSC technology.

Everybody is very welcome!

EVENT CANCE..
Start date: April 03
02:00 pm 05:00 pm

Description: 

Information Day on International Master‘s Courses at the Center for Molecular and Cellular Bioengineering (CMCB)

FOR WHOM?
Students of biology, life sciences, medicine, bio-chemistry, physics and similar subjects with an interest in an English-language Master’s program

WHAT?
― Introduction of the Master’s courses of study
Molecular Bioengineering, Nanobiophysics,
and Regenerative Biology and Medicine
― Lab visit
― Opportunity to talk to the CMCB student council
(Fachschaftsrat) and the course coordinators
― PhD/PostDoc Talk & Social Hour

WHEN?
April 3, 2 – 5pm

WHERE?
Center for Regenerative Therapies TU Dresden (CRTD)
Fetscherstr. 105, 01307 Dresden
www.tu-dresden.de/cmcb

Please sign-up until March 20 2020:
sandra.mattick(at)tu-dresden.de
Please provide your name, university / course of study, semester.

Flyer

EVENT CANCE..
Start date: April 15
10:00 am 11:30 am

The world's..
Start date: April 21
05:00 pm 07:00 pm

Description: 

The lectures are broadcast live to all participating universities using a Virtual Classroom concept in the EMM Nano programme. Find more information here.

Are you wat..
Start date: April 28
05:00 pm 07:00 pm

Description: 

The lectures are broadcast live to all participating universities using a Virtual Classroom concept in the EMM Nano programme. Find more information here.

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