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De Vitto H, Ryu J, Calderon-Aparicio A, Monts J, Dey R, Chakraborty A, Lee MH, Bode AM, Dong Z. Estrogen-related receptor alpha directly binds to p53 and cooperatively controls colon cancer growth through the regulation of mitochondrial biogenesis and function. Cancer Metab 2020; 8:28. [PMID: 33303020 PMCID: PMC7731476 DOI: 10.1186/s40170-020-00234-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 11/30/2020] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND Of the genes that control mitochondrial biogenesis and function, ERRα emerges as a druggable metabolic target to be exploited for cancer therapy. Of the genes mutated in cancer, TP53 remains the most elusive to target. A clear understanding of how mitochondrial druggable targets can be accessed to exploit the underlying mechanism(s) explaining how p53-deficient tumors promote cell survival remains elusive. METHODS We performed protein-protein interaction studies to demonstrate that ERRα binds to p53. Moreover, we used gene silencing and pharmacological approaches in tandem with quantitative proteomics analysis by SWATH-MS to investigate the role of the ERRα/p53 complex in mitochondrial biogenesis and function in colon cancer. Finally, we designed in vitro and in vivo studies to investigate the possibility of targeting colon cancers that exhibit defects in p53. RESULTS Here, we are the first to identify a direct protein-protein interaction between the ligand-binding domain (LBD) of ERRα and the C-terminal domain (CTD) of p53. ERRα binds to p53 regardless of p53 mutational status. Furthermore, we show that the ERRα and p53 complex cooperatively control mitochondrial biogenesis and function. Targeting ERRα creates mitochondrial metabolic stresses, such as production of reactive oxygen species (ROS) and mitochondrial membrane permeabilization (MMP), leading to a greater cytotoxic effect that is dependent on the presence of p53. Pharmacological inhibition of ERRα impairs the growth of p53-deficient cells and of p53 mutant patient-derived colon xenografts (PDX). CONCLUSIONS Therefore, our data suggest that by using the status of the p53 protein as a selection criterion, the ERRα/p53 transcriptional axis can be exploited as a metabolic vulnerability.
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Affiliation(s)
- Humberto De Vitto
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, 55912, USA
| | - Joohyun Ryu
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, 55912, USA
| | - Ali Calderon-Aparicio
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, 55912, USA
| | - Josh Monts
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, 55912, USA
| | - Raja Dey
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, 55912, USA
| | - Abhijit Chakraborty
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, 55912, USA
| | - Mee-Hyun Lee
- Department of Pathophysiology, Zhengzhou University School of Medicine, 40 North Road, 27 District University, Zhengzhou, 450052, China
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, 55912, USA.
| | - Zigang Dong
- Department of Pathophysiology, Zhengzhou University School of Medicine, 40 North Road, 27 District University, Zhengzhou, 450052, China.
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Bhatt V, Shi K, Salamango DJ, Moeller NH, Pandey KK, Bera S, Bohl HO, Kurniawan F, Orellana K, Zhang W, Grandgenett DP, Harris RS, Sundborger-Lunna AC, Aihara H. Structural basis of host protein hijacking in human T-cell leukemia virus integration. Nat Commun 2020; 11:3121. [PMID: 32561747 PMCID: PMC7305164 DOI: 10.1038/s41467-020-16963-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 06/03/2020] [Indexed: 12/20/2022] Open
Abstract
Integration of the reverse-transcribed viral DNA into host chromosomes is a critical step in the life-cycle of retroviruses, including an oncogenic delta(δ)-retrovirus human T-cell leukemia virus type-1 (HTLV-1). Retroviral integrase forms a higher order nucleoprotein assembly (intasome) to catalyze the integration reaction, in which the roles of host factors remain poorly understood. Here, we use cryo-electron microscopy to visualize the HTLV-1 intasome at 3.7-Å resolution. The structure together with functional analyses reveal that the B56γ (B'γ) subunit of an essential host enzyme, protein phosphatase 2 A (PP2A), is repurposed as an integral component of the intasome to mediate HTLV-1 integration. Our studies reveal a key host-virus interaction underlying the replication of an important human pathogen and highlight divergent integration strategies of retroviruses.
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Affiliation(s)
- Veer Bhatt
- The Hormel Institute, University of Minnesota, 801 16th Avenue N.E., Austin, MN, 55912, USA
- Masonic Cancer Center, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA
| | - Ke Shi
- Masonic Cancer Center, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 321 Church Street S.E., Minneapolis, MN, 55455, USA
- Institute for Molecular Virology, University of Minnesota, 515 Delaware Street S.E., Minneapolis, MN, 55455, USA
| | - Daniel J Salamango
- Masonic Cancer Center, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 321 Church Street S.E., Minneapolis, MN, 55455, USA
- Institute for Molecular Virology, University of Minnesota, 515 Delaware Street S.E., Minneapolis, MN, 55455, USA
| | - Nicholas H Moeller
- Masonic Cancer Center, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 321 Church Street S.E., Minneapolis, MN, 55455, USA
- Institute for Molecular Virology, University of Minnesota, 515 Delaware Street S.E., Minneapolis, MN, 55455, USA
| | - Krishan K Pandey
- Department of Molecular Microbiology and Immunology, Saint Louis University, 1100 S. Grand Boulevard, St. Louis, MO, 63104, USA
| | - Sibes Bera
- Department of Molecular Microbiology and Immunology, Saint Louis University, 1100 S. Grand Boulevard, St. Louis, MO, 63104, USA
| | - Heather O Bohl
- Masonic Cancer Center, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 321 Church Street S.E., Minneapolis, MN, 55455, USA
- Institute for Molecular Virology, University of Minnesota, 515 Delaware Street S.E., Minneapolis, MN, 55455, USA
| | - Fredy Kurniawan
- Masonic Cancer Center, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 321 Church Street S.E., Minneapolis, MN, 55455, USA
- Institute for Molecular Virology, University of Minnesota, 515 Delaware Street S.E., Minneapolis, MN, 55455, USA
| | - Kayo Orellana
- Masonic Cancer Center, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 321 Church Street S.E., Minneapolis, MN, 55455, USA
- Institute for Molecular Virology, University of Minnesota, 515 Delaware Street S.E., Minneapolis, MN, 55455, USA
| | - Wei Zhang
- Masonic Cancer Center, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA
- Institute for Molecular Virology, University of Minnesota, 515 Delaware Street S.E., Minneapolis, MN, 55455, USA
- Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, 515 Delaware Street S.E., Minneapolis, MN, 55455, USA
- Characterization Facility, College of Science and Engineering, University of Minnesota, 100 Union Street S.E., Minneapolis, MN, 55455, USA
| | - Duane P Grandgenett
- Department of Molecular Microbiology and Immunology, Saint Louis University, 1100 S. Grand Boulevard, St. Louis, MO, 63104, USA
| | - Reuben S Harris
- Masonic Cancer Center, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 321 Church Street S.E., Minneapolis, MN, 55455, USA
- Institute for Molecular Virology, University of Minnesota, 515 Delaware Street S.E., Minneapolis, MN, 55455, USA
- Howard Hughes Medical Institute, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA
| | - Anna C Sundborger-Lunna
- The Hormel Institute, University of Minnesota, 801 16th Avenue N.E., Austin, MN, 55912, USA.
- Masonic Cancer Center, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA.
| | - Hideki Aihara
- Masonic Cancer Center, University of Minnesota, 2231 6th Street S.E., Minneapolis, MN, 55455, USA.
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 321 Church Street S.E., Minneapolis, MN, 55455, USA.
- Institute for Molecular Virology, University of Minnesota, 515 Delaware Street S.E., Minneapolis, MN, 55455, USA.
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Yan F, Pang J, Peng Y, Molina JR, Yang P, Liu S. Elevated Cellular PD1/PD-L1 Expression Confers Acquired Resistance to Cisplatin in Small Cell Lung Cancer Cells. PLoS One 2016; 11:e0162925. [PMID: 27610620 PMCID: PMC5017656 DOI: 10.1371/journal.pone.0162925] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 08/30/2016] [Indexed: 02/05/2023] Open
Abstract
Although small cell lung cancer (SCLC) is highly responsive to chemotherapies (e.g., cisplatin-etoposide doublet), virtually almost all responsive SCLC patients experience disease recurrence characterized by drug resistance. The mechanisms underlying cisplatin resistance remain elusive. Here we report that cell-intrinsic expression of PD1 and PD-L1, two immune checkpoints, is required for sustained expansion of SCLC cells under cisplatin selection. Indeed, PD1 and PD-L1 were expressed at a higher level in lung cancer cell lines, tumor tissues, and importantly, in SCLC cells resistant to cisplatin (H69R, H82R), when compared to respective controls. Genetic abrogation of PD1 and PD-L1 in H69R and H82R cells decreased their proliferation rate, and restored their sensitivity to cisplatin. Mechanistically, PD-L1 upregulation in H69R and H82R cells was attributed to the overexpression of DNA methyltransferase 1 (DNMT1) or receptor tyrosine kinase KIT, as knockdown of DNMT1 or KIT in H69R and H82R cells led to PD-L1 downregulation. Consequently, combined knockdown of PD-L1 with KIT or DNMT1 resulted in more pronounced inhibition of H69R and H82R cell growth. Thus, cell intrinsic PD1/PD-L1 signaling may be a predictor for poor efficacy of cisplatin treatment, and targeting the cellular PD1/PD-L1 axis may improve chemosensitization of aggressive SCLC.
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Affiliation(s)
- Fei Yan
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, Minnesota, 55912, United States of America
| | - Jiuxia Pang
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, Minnesota, 55912, United States of America
| | - Yong Peng
- Department of Thoracic Surgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University /Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Julian R. Molina
- Department of Medical Oncology, Mayo Clinic, 200 1st Street SW, Rochester, Minnesota, 55905, United States of America
| | - Ping Yang
- Division of Epidemiology, Mayo Clinic, 200 1st Street SW, Rochester, Minnesota, 55905, United States of America
| | - Shujun Liu
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, Minnesota, 55912, United States of America
- * E-mail:
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