The ATR Checkpoint: from Basic Science to Cancer Therapy
Date:2024-10-16

NO. 43

 

CIMR Wednesday Lecture Series

 

Time:

Wednesday, Oct. 16 2024, 4:00 p.m.

 

Location:

Yifu Lecture Hall, North Basic Research Building 

 

Host

Guo-Min Li  (李国民)

Chinese Institutes for Medical Research

 

Speaker

Lee Zou (邹力)

Professor and Chair

Department of Pharmacology and Cancer Biology

Duke University School of Medicine

 

TITLE:

The ATR Checkpoint: from Basic Science to Cancer Therapy

 

ABSTRACT:

In proliferating cells, the integrity of the genome is consistently challenged by intrinsic and extrinsic stresses during DNA replication. Replication stress, a collection of different types of interferences with DNA replication, is a major source of genomic instability. In highly proliferative cancer cells, replication stress is elevated by oncogenic events, driving genomic instability during tumorigenesis and tumor evolution. The ATR kinase is a master regulator of the replication stress response in human cells. My lab has extensively studied how ATR is activated by replication stress and how it functions to protect replication forks under stress. In addition, our recent studies reveal that ATR is activated by different types of replication stress in cancer cells, and it plays an important role in keeping cancer cells alive under stress.

 

SELECTED PAPERS

1. Saxena S, Nabel CS, Seay TW, Patel PS, Kawale AS, Crosby CR, Tigro H, Oh E, Vander Heiden MG, Hata AN, Suo Z, Zou L. Unprocessed genomic uracil as a source of DNA replication stress in cancer cells. Mol Cell. 2024;84(11):2036-2052.e7.
 
2. Kawale AS, Ran X, Patel PS, Saxena S, Lawrence MS, Zou L. APOBEC3A induces DNA gaps through PRIMPOL and confers gap-associated therapeutic vulnerability. Sci Adv. 2024;10(3):eadk2771.
 
3. Joo YK, Black EM, Trier I, Haakma W, Zou L, Kabeche L. ATR promotes clearance of damaged DNA and damaged cells by rupturing micronuclei. Mol Cell. 2023;83(20):3642-3658.e4.