1
|
Yuan Y, Hao L, Huang JS, Zhao FY, Ju YH, Wang JM, Zhang T, Li BQ, Yu ZW. Promotion of stem cell-like phenotype of lung adenocarcinoma by FAM83A via stabilization of ErbB2. Cell Death Dis 2024; 15:460. [PMID: 38942760 PMCID: PMC11213963 DOI: 10.1038/s41419-024-06853-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 06/30/2024]
Abstract
Lung cancer stands as the leading cause of mortality among all types of tumors, with over 40% of cases being lung adenocarcinoma (LUAD). Family with sequence similarity 83 member A (FAM83A) emerges as a notable focus due to its frequent overexpression in LUAD. Despite this, the precise role of FAM83A remains elusive. This study addresses this gap by unveiling the crucial involvement of FAM83A in maintaining the cancer stem cell-like (CSC-like) phenotype of LUAD. Through a global proteomics analysis, the study identifies human epidermal growth factor receptor 2 (HER2 or ErbB2) as a crucial target of FAM83A. Mechanistically, FAM83A facilitated ErbB2 expression at the posttranslational modification level via the E3 ubiquitin ligase STUB1 (STIP1-homologous U-Box containing protein 1). More importantly, the interaction between FAM83A and ErbB2 at Arg241 promotes calcineurin (CALN)-mediated dephosphorylation of ErbB2, followed by inhibition of STUB1-mediated ubiquitin-proteasomal ErbB2 degradation. The maintenance of the CSC-like phenotype by FAM83A, achieved through the posttranslational regulation of ErbB2, offers valuable insights for identifying potential therapeutic targets for LUAD.
Collapse
Affiliation(s)
- Ye Yuan
- Central Laboratory, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Cancer Hospital of Dalian University of Technology, Shenyang, 110042, China
- Department of Biochemistry & Molecular Biology, China Medical University, Shenyang, 110026, China
| | - Liang Hao
- Department of Biochemistry & Molecular Biology, China Medical University, Shenyang, 110026, China
- Department of Chemistry, School of Forensic Medicine, China Medical University, Shenyang, 110026, China
| | - Jing-Shan Huang
- Department of Biochemistry & Molecular Biology, China Medical University, Shenyang, 110026, China
- Department of Thoracic Surgery, the Shengjing Hospital, China Medical University, Shenyang, 110001, China
| | - Fu-Ying Zhao
- Department of Biochemistry & Molecular Biology, China Medical University, Shenyang, 110026, China
| | - Ying-Hua Ju
- Department of Biochemistry & Molecular Biology, China Medical University, Shenyang, 110026, China
| | - Jia-Mei Wang
- Department of Laboratory Medicine, the 1st affiliated hospital, China Medical University, Shenyang, 110001, China
| | - Ting Zhang
- Department of Biochemistry & Molecular Biology, China Medical University, Shenyang, 110026, China
| | - Bai-Qiang Li
- Department of Biochemistry & Molecular Biology, China Medical University, Shenyang, 110026, China
| | - Zhan-Wu Yu
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Cancer Hospital of Dalian University of Technology, Shenyang, 110042, China.
| |
Collapse
|
2
|
A Novel Mechanism Underlying the Inhibitory Effects of Trastuzumab on the Growth of HER2-Positive Breast Cancer Cells. Cells 2022; 11:cells11244093. [PMID: 36552857 PMCID: PMC9777316 DOI: 10.3390/cells11244093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/13/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
To improve the efficacy of trastuzumab, it is essential to understand its mechanism of action. One of the significant issues that makes it difficult to determine the precise mechanism of trastuzumab action is the formation of various HER receptor dimers in HER2-positive breast cancer cells. So far, studies have focused on the role of HER2-HER3 heterodimers, and little is known regarding EGFR-HER2 heterodimers. Here, we study the role of trastuzumab on the cell signaling and cell proliferation mediated by EGFR-HER2 heterodimers in BT474 and SRBR3 cells. EGF stimulates the formation of both EGFR homodimer and EGFR-HER2 heterodimer. Trastuzumab only binds to HER2, not EGFR. Therefore, any effects of trastuzumab on EGF-induced activation of EGFR, HER2, and downstream signaling proteins, as well as cell proliferation, are through its effects on EGFR-HER2 heterodimers. We show that trastuzumab inhibits EGF-induced cell proliferation and cell cycle progression in BT474 and SKBR3 cells. Interestingly trastuzumab strongly inhibits EGF-induced Akt phosphorylation and slightly inhibits EGF-induced Erk activation, in both BT474 and SKBR3 cells. These data suggest the presence of a novel mechanism that allows trastuzumab to inhibit EGR-induced Akt activation and cell proliferation, without blocking EGF-induced EGFR-HER2 heterodimerization and activation. We show that trastuzumab inhibits EGF-induced lipid raft localization of the EGFR-HER2 heterodimer. Disruption of the lipid raft with MβCD blocks HER2-mediated AKT activation in a similar way to trastuzumab. MβCD and trastuzumab synergically inhibit AKT activation. We conclude that trastuzumab inhibits EGF-induced lipid raft localization of EGFR-HER2 heterodimer, which leads to the inhibition of Akt phosphorylation and cell proliferation, without blocking the formation and phosphorylation of the EGFR-HER2 heterodimer.
Collapse
|
3
|
Belachew EB, Sewasew DT. Molecular Mechanisms of Endocrine Resistance in Estrogen-Positive Breast Cancer. Front Endocrinol (Lausanne) 2021; 12:599586. [PMID: 33841325 PMCID: PMC8030661 DOI: 10.3389/fendo.2021.599586] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 02/15/2021] [Indexed: 12/16/2022] Open
Abstract
The estrogen receptor is a vital receptor for therapeutic targets in estrogen receptor-positive breast cancer. The main strategy for the treatment of estrogen receptor-positive breast cancers is blocking the estrogen action on estrogen receptors by endocrine therapy but this can be restricted via endocrine resistance. Endocrine resistance occurs due to both de novo and acquired resistance. This review focuses on the mechanisms of the ligand-dependent and ligand-independent pathways and other coregulators, which are responsible for endocrine resistance. It concludes that combinatorial drugs that target different signaling pathways and coregulatory proteins together with endocrine therapy could be a novel therapeutic modality to stop endocrine resistance.
Collapse
Affiliation(s)
- Esmael Besufikad Belachew
- Biology, Mizan Tepi University, Addis Ababa, Ethiopia
- Microbial, Cellular and Molecular Biology Department, Addis Ababa University, Addis Ababa, Ethiopia
| | | |
Collapse
|
4
|
Yao J, Deng K, Huang J, Zeng R, Zuo J. Progress in the Understanding of the Mechanism of Tamoxifen Resistance in Breast Cancer. Front Pharmacol 2020; 11:592912. [PMID: 33362547 PMCID: PMC7758911 DOI: 10.3389/fphar.2020.592912] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 10/16/2020] [Indexed: 12/24/2022] Open
Abstract
Tamoxifen is a drug commonly used in the treatment of breast cancer, especially for postmenopausal patients. However, its efficacy is limited by the development of drug resistance. Downregulation of estrogen receptor alpha (ERα) is an important mechanism of tamoxifen resistance. In recent years, with progress in research into the protective autophagy of drug-resistant cells and cell cycle regulators, major breakthroughs have been made in research on tamoxifen resistance. For a better understanding of the mechanism of tamoxifen resistance, protective autophagy, cell cycle regulators, and some transcription factors and enzymes regulating the expression of the estrogen receptor are summarized in this review. In addition, recent progress in reducing resistance to tamoxifen is reviewed. Finally, we discuss the possible research directions into tamoxifen resistance in the future to provide assistance for the clinical treatment of breast cancer.
Collapse
Affiliation(s)
- Jingwei Yao
- Nanhua Hospital Affiliated to University of South China, Hengyang, China.,The Third Affiliated Hospital of University of South China, Hengyang, China
| | - Kun Deng
- Transformation Research Lab, Hengyang Medical School, University of South China, Hengyang, China
| | - Jialu Huang
- Transformation Research Lab, Hengyang Medical School, University of South China, Hengyang, China
| | - Ruimin Zeng
- Nanhua Hospital Affiliated to University of South China, Hengyang, China
| | - Jianhong Zuo
- Nanhua Hospital Affiliated to University of South China, Hengyang, China.,Transformation Research Lab, Hengyang Medical School, University of South China, Hengyang, China.,The Third Affiliated Hospital of University of South China, Hengyang, China
| |
Collapse
|
5
|
MiR-486-5p Suppresses Proliferation and Migration of Hepatocellular Carcinoma Cells through Downregulation of the E3 Ubiquitin Ligase CBL. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2732057. [PMID: 31976317 PMCID: PMC6949685 DOI: 10.1155/2019/2732057] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 09/13/2019] [Accepted: 09/20/2019] [Indexed: 12/20/2022]
Abstract
MicroRNAs have been broadly implicated in cancer, but precise functions and mechanisms in carcinogenesis vary among cancer types and in many cases remain poorly understood. Hepatocellular carcinoma (HCC) is among the most frequent and lethal cancers. The aim of the present study was to investigate the role of miR-486-5p in HCC and identify its specific target. MiR-486-5p was significantly downregulated in HCC tissues and cell lines compared with noncancerous tissues and, respectively, although expression level was not correlated with the degree of infiltration or tumor stage. However, miR-486-5p overexpression in HCC cells inhibited proliferation and migration as evidenced by CCK-8 cell counting, wound healing, and transwell assays, indicating that miR-486-5p is an HCC suppressor. We employed four miRNA databases to predict the target genes of miR-486-5p and verified retrieved genes using qPCR and western blotting. The E3 ubiquitin ligase CBL was significantly downregulated by miR-486-5p overexpression in HCC cell lines at both mRNA and protein level, and overexpression of CBL counteracted the inhibitory effects of miR-486-5p on HCC cell proliferation and migration. Moreover, CBL expression was negatively correlated with miR-486-5p expression in HCC tissues. Collectively, our results suggest that miR-486-5p may act as a tumor suppressor gene in HCC by downregulating CBL expression.
Collapse
|
6
|
Benedetti R, Dell’Aversana C, De Marchi T, Rotili D, Liu NQ, Novakovic B, Boccella S, Di Maro S, Cosconati S, Baldi A, Niméus E, Schultz J, Höglund U, Maione S, Papulino C, Chianese U, Iovino F, Federico A, Mai A, Stunnenberg HG, Nebbioso A, Altucci L. Inhibition of Histone Demethylases LSD1 and UTX Regulates ERα Signaling in Breast Cancer. Cancers (Basel) 2019; 11:cancers11122027. [PMID: 31888209 PMCID: PMC6966629 DOI: 10.3390/cancers11122027] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/09/2019] [Accepted: 12/11/2019] [Indexed: 02/06/2023] Open
Abstract
In breast cancer, Lysine-specific demethylase-1 (LSD1) and other lysine demethylases (KDMs), such as Lysine-specific demethylase 6A also known as Ubiquitously transcribed tetratricopeptide repeat, X chromosome (UTX), are co-expressed and co-localize with estrogen receptors (ERs), suggesting the potential use of hybrid (epi)molecules to target histone methylation and therefore regulate/redirect hormone receptor signaling. Here, we report on the biological activity of a dual-KDM inhibitor (MC3324), obtained by coupling the chemical properties of tranylcypromine, a known LSD1 inhibitor, with the 2OG competitive moiety developed for JmjC inhibition. MC3324 displays unique features not exhibited by the single moieties and well-characterized mono-pharmacological inhibitors. Inhibiting LSD1 and UTX, MC3324 induces significant growth arrest and apoptosis in hormone-responsive breast cancer model accompanied by a robust increase in H3K4me2 and H3K27me3. MC3324 down-regulates ERα in breast cancer at both transcriptional and non-transcriptional levels, mimicking the action of a selective endocrine receptor disruptor. MC3324 alters the histone methylation of ERα-regulated promoters, thereby affecting the transcription of genes involved in cell surveillance, hormone response, and death. MC3324 reduces cell proliferation in ex vivo breast cancers, as well as in breast models with acquired resistance to endocrine therapies. Similarly, MC3324 displays tumor-selective potential in vivo, in both xenograft mice and chicken embryo models, with no toxicity and good oral efficacy. This epigenetic multi-target approach is effective and may overcome potential mechanism(s) of resistance in breast cancer.
Collapse
Affiliation(s)
- Rosaria Benedetti
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (C.D.); (C.P.); (U.C.); (A.N.)
- Correspondence: (R.B.); (L.A.); Tel.: +39-081-5667564 (R.B.); +39-081-5667569 (L.A.)
| | - Carmela Dell’Aversana
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (C.D.); (C.P.); (U.C.); (A.N.)
- Institute Experimental Endocrinology and Oncology “Gaetano Salvatore” (IEOS)-National Research Council (CNR) Via Sergio Pansini, 5-80131 Napoli, Italy
| | - Tommaso De Marchi
- Department of Oncology and Pathology, Lund University, SE-221 00 Lund, Sweden; (T.D.M.); (E.N.)
| | - Dante Rotili
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Rome, Italy; (D.R.); (A.M.)
| | - Ning Qing Liu
- Department of Molecular Biology, Radboud University, 6500 HB Nijmegen, The Netherlands; (N.Q.L.); (H.G.S.)
| | - Boris Novakovic
- Murdoch Children’s Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Parkville Victoria 3052, Australia;
| | - Serena Boccella
- Department of Experimental Medicine, Section of Pharmacology “L. Donatelli”, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.B.); (S.M.)
| | - Salvatore Di Maro
- Dipartimento di Scienze e Tecnologie Ambientali Biologiche e Farmaceutiche, University of Campania ’Luigi Vanvitelli’, 81100 Caserta, Italy; (S.D.M.); (S.C.); (A.B.)
| | - Sandro Cosconati
- Dipartimento di Scienze e Tecnologie Ambientali Biologiche e Farmaceutiche, University of Campania ’Luigi Vanvitelli’, 81100 Caserta, Italy; (S.D.M.); (S.C.); (A.B.)
| | - Alfonso Baldi
- Dipartimento di Scienze e Tecnologie Ambientali Biologiche e Farmaceutiche, University of Campania ’Luigi Vanvitelli’, 81100 Caserta, Italy; (S.D.M.); (S.C.); (A.B.)
| | - Emma Niméus
- Department of Oncology and Pathology, Lund University, SE-221 00 Lund, Sweden; (T.D.M.); (E.N.)
- Department of Surgery, Skånes University Hospital, 222 29 Lund, Sweden
| | - Johan Schultz
- Kancera AB, Banvaktsvagen 22, SE-17148 Solna, Sweden;
| | - Urban Höglund
- Adlego Biomedical AB, P.O. Box 42, SE-751 03 Uppsala, Sweden;
| | - Sabatino Maione
- Department of Experimental Medicine, Section of Pharmacology “L. Donatelli”, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.B.); (S.M.)
| | - Chiara Papulino
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (C.D.); (C.P.); (U.C.); (A.N.)
| | - Ugo Chianese
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (C.D.); (C.P.); (U.C.); (A.N.)
| | - Francesco Iovino
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138 Naples, Italy;
| | - Antonio Federico
- Faculty of Medicine and Health Technology, Tampere University, 33100 Tampere, Finland;
| | - Antonello Mai
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Rome, Italy; (D.R.); (A.M.)
| | - Hendrik G. Stunnenberg
- Department of Molecular Biology, Radboud University, 6500 HB Nijmegen, The Netherlands; (N.Q.L.); (H.G.S.)
- Prinses Maxima Centrum, Heidelberglaan 25, 3584CS Utrecht, The Netherlands
| | - Angela Nebbioso
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (C.D.); (C.P.); (U.C.); (A.N.)
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (C.D.); (C.P.); (U.C.); (A.N.)
- Correspondence: (R.B.); (L.A.); Tel.: +39-081-5667564 (R.B.); +39-081-5667569 (L.A.)
| |
Collapse
|