ewings sarcoma
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2021 ◽  
Author(s):  
Caitlin S DeJong ◽  
Darwin S Dichmann ◽  
Cameron R.T. Exner ◽  
Yuxiao Xu ◽  
Richard M Harland

The FET family of atypical RNA-binding proteins includes Fused in sarcoma (Fus), Ewings sarcoma (EWS), and the TATA-binding protein-associate factor 15 (TAF15). All FET family members are highly conserved from fish to mammals, suggesting an independent and specialized requirement for each protein. Fus is necessary for the proper splicing of genes required for mesoderm differentiation and cell adhesion in Xenopus, but the role, if any, that EWS and TAF15 play in development remains unknown. Here we define the role maternally deposited and zygotically transcribed TAF15 plays in development. We find that TAF15 is essential for the proper development of dorsoanterial neural tissues, and by sequencing the RNA from single TAF15-depleted embryos and measuring changes in transcript abundance and exon usage we found TAF15 regulates dorsoanterior neural tissue development through regulating fgfr4 and ventx2.1. Intriguingly, we find that TAF15 uses two distinct mechanisms to downregulate FGFR4 expression: 1) retention of a single intron within fgfr4 and 2) reduction of total fgfr4 transcript. Intron retention was identified when both maternal and zygotic TAF15 is depleted, while depletion of zygotic TAF15 alone leads to regulation of fgfr4 total transcripts. In this study we find that TAF15 plays an integral and pleiotropic role in the development of dorsoanterior neural tissues and further identify two novel mechanisms of gene regulation by TAF15, suggesting TAF15 gene regulation is target and cofactor-dependent, subject to the milieu of factors that are present at different times of development.


2021 ◽  
Vol 9 (4) ◽  
pp. 946-948
Author(s):  
SM. Hanena ◽  
ED-Degouj Amine ◽  
R. Tidahy ◽  
M. Ahsaini ◽  
S. Mellas ◽  
...  

Extra skeletal Ewings sarcoma is a rare entity. The primary bladder localization is exceptional, their diagnosis is difficult because it is extremely rare in this place and because of diagnostic difficulties posed by a group of very heterogeneous tumors. Its clinical presentation is similar to that of transitional cell carcinoma, however the two entities must be distinguished because the protocols for treatment are different. The diagnosis is dependent on the pathological examination with the immunohistochemical and cytogenetic study. We report the case of a 36-year-old man with locally advanced Ewing sarcoma of the bladder.


2021 ◽  
Vol 64 (5) ◽  
pp. 136
Author(s):  
Neha Sethi ◽  
Anjali Sharma ◽  
Shashikant Saini ◽  
Kirti Pandia ◽  
Ritu Jangir

2020 ◽  
Vol 5 (4) ◽  
pp. S8
Author(s):  
Khin Pyone ◽  
Nehal R. Khanna ◽  
Ajay Sasidharan ◽  
Girish Chinnaswamy ◽  
Tushar Vora ◽  
...  

CHEST Journal ◽  
2020 ◽  
Vol 158 (4) ◽  
pp. A1515-A1516
Author(s):  
Senthil Kumar Raman
Keyword(s):  

2020 ◽  
Author(s):  
Davis T. Weaver ◽  
Kathleen I. Pishas ◽  
Drew Williamson ◽  
Jessica Scarborough ◽  
Stephen L. Lessnick ◽  
...  
Keyword(s):  

2020 ◽  
Vol 8 (5) ◽  
pp. 92-99
Author(s):  
Syeda Zaineb Humaira Hussaini ◽  
◽  
A. Srinivasa Rao ◽  
Amini Raunaq Fatima ◽  
◽  
...  

2019 ◽  
Vol 30 ◽  
pp. vi90
Author(s):  
Prabani S. Maddumarachchi ◽  
Mahendra Somathilake ◽  
Sanjeeva Gunasekera

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