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Dermatology Commons

Open Access. Powered by Scholars. Published by Universities.®

Thomas Jefferson University

Series

2020

Human

Articles 1 - 2 of 2

Full-Text Articles in Dermatology

Ier5, A Dna Damage Response Gene, Is Required For Notch-Mediated Induction Of Squamous Cell Differentiation, Li Pan, Madeleine E Lemieux, Tom Thomas, Julia M Rogers, Colin H Lipper, Winston Lee, Carl Johnson, Lynette M Sholl, Andrew P. South, Jarrod A Marto, Guillaume O Adelmant, Stephen C Blacklow, Jon C Aster Sep 2020

Ier5, A Dna Damage Response Gene, Is Required For Notch-Mediated Induction Of Squamous Cell Differentiation, Li Pan, Madeleine E Lemieux, Tom Thomas, Julia M Rogers, Colin H Lipper, Winston Lee, Carl Johnson, Lynette M Sholl, Andrew P. South, Jarrod A Marto, Guillaume O Adelmant, Stephen C Blacklow, Jon C Aster

Department of Dermatology and Cutaneous Biology Faculty Papers

Notch signaling regulates squamous cell proliferation and differentiation and is frequently disrupted in squamous cell carcinomas, in which Notch is tumor suppressive. Here, we show that conditional activation of Notch in squamous cells activates a context-specific gene expression program through lineage-specific regulatory elements. Among direct Notch target genes are multiple DNA damage response genes, including IER5, which we show is required for Notch-induced differentiation of squamous carcinoma cells and TERT-immortalized keratinocytes. IER5 is epistatic to PPP2R2A, a gene that encodes the PP2A B55α subunit, which we show interacts with IER5 in cells and in purified systems. Thus, Notch and DNA-damage …


Characteristics Of Nontuberculous Mycobacterial Infections At A Midwestern Tertiary Hospital: A Retrospective Study Of 365 Patients., Claire E Hannah, Bradley A Ford, Jina Chung, Dilek Ince, Karolyn A Wanat May 2020

Characteristics Of Nontuberculous Mycobacterial Infections At A Midwestern Tertiary Hospital: A Retrospective Study Of 365 Patients., Claire E Hannah, Bradley A Ford, Jina Chung, Dilek Ince, Karolyn A Wanat

Department of Dermatology and Cutaneous Biology Faculty Papers

Background: The prevalence of infections due to nontuberculous mycobacteria (NTM) is increasing worldwide, yet little is known about the epidemiology and pathophysiology of these ubiquitous environmental organisms. Pulmonary disease due to Mycobacterium avium complex is most prevalent, but many other NTM species can cause disease in virtually any organ system. As NTM becomes an increasingly common cause of morbidity and mortality, more information is needed about the epidemiology of NTM disease.

Methods: We conducted a retrospective chart review of all patients with cultures that grew NTM at a Midwestern tertiary hospital from 1996 to 2017. Information on demographics, medical history, …