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Lee JY, Bhandare RR, Boddu SHS, Shaik AB, Saktivel LP, Gupta G, Negi P, Barakat M, Singh SK, Dua K, Chellappan DK. Molecular mechanisms underlying the regulation of tumour suppressor genes in lung cancer. Biomed Pharmacother 2024; 173:116275. [PMID: 38394846 DOI: 10.1016/j.biopha.2024.116275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/30/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Tumour suppressor genes play a cardinal role in the development of a large array of human cancers, including lung cancer, which is one of the most frequently diagnosed cancers worldwide. Therefore, extensive studies have been committed to deciphering the underlying mechanisms of alterations of tumour suppressor genes in governing tumourigenesis, as well as resistance to cancer therapies. In spite of the encouraging clinical outcomes demonstrated by lung cancer patients on initial treatment, the subsequent unresponsiveness to first-line treatments manifested by virtually all the patients is inherently a contentious issue. In light of the aforementioned concerns, this review compiles the current knowledge on the molecular mechanisms of some of the tumour suppressor genes implicated in lung cancer that are either frequently mutated and/or are located on the chromosomal arms having high LOH rates (1p, 3p, 9p, 10q, 13q, and 17p). Our study identifies specific genomic loci prone to LOH, revealing a recurrent pattern in lung cancer cases. These loci, including 3p14.2 (FHIT), 9p21.3 (p16INK4a), 10q23 (PTEN), 17p13 (TP53), exhibit a higher susceptibility to LOH due to environmental factors such as exposure to DNA-damaging agents (carcinogens in cigarette smoke) and genetic factors such as chromosomal instability, genetic mutations, DNA replication errors, and genetic predisposition. Furthermore, this review summarizes the current treatment landscape and advancements for lung cancers, including the challenges and endeavours to overcome it. This review envisages inspired researchers to embark on a journey of discovery to add to the list of what was known in hopes of prompting the development of effective therapeutic strategies for lung cancer.
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Affiliation(s)
- Jia Yee Lee
- School of Health Sciences, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia
| | - Richie R Bhandare
- Department of Pharmaceutical Sciences, College of Pharmacy & Health Sciences, Ajman University, Al-Jurf, P.O. Box 346, Ajman, United Arab Emirates; Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Al-Jurf, P.O. Box 346, Ajman, United Arab Emirates.
| | - Sai H S Boddu
- Department of Pharmaceutical Sciences, College of Pharmacy & Health Sciences, Ajman University, Al-Jurf, P.O. Box 346, Ajman, United Arab Emirates; Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Al-Jurf, P.O. Box 346, Ajman, United Arab Emirates
| | - Afzal B Shaik
- St. Mary's College of Pharmacy, St. Mary's Group of Institutions Guntur, Affiliated to Jawaharlal Nehru Technological University Kakinada, Chebrolu, Guntur, Andhra Pradesh 522212, India; Center for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, India
| | - Lakshmana Prabu Saktivel
- Department of Pharmaceutical Technology, University College of Engineering (BIT Campus), Anna University, Tiruchirappalli 620024, India
| | - Gaurav Gupta
- Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Al-Jurf, P.O. Box 346, Ajman, United Arab Emirates; School of Pharmacy, Suresh Gyan Vihar University, Jaipur, Rajasthan 302017, India
| | - Poonam Negi
- School of Pharmaceutical Sciences, Shoolini University, PO Box 9, Solan, Himachal Pradesh 173229, India
| | - Muna Barakat
- Department of Clinical Pharmacy & Therapeutics, Applied Science Private University, Amman-11937, Jordan
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T Road, Phagwara 144411, India; Australian Research Centre in Complementary and Integrative Medicine, Faculty of Health, University of Technology Sydney, Sydney 2007, Australia
| | - Kamal Dua
- Australian Research Centre in Complementary and Integrative Medicine, Faculty of Health, University of Technology Sydney, Sydney 2007, Australia; Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney 2007, Australia
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia.
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Chan TW, Dodson JP, Arbet J, Boutros PC, Xiao X. Single-Cell Analysis in Lung Adenocarcinoma Implicates RNA Editing in Cancer Innate Immunity and Patient Prognosis. Cancer Res 2023; 83:374-385. [PMID: 36449563 PMCID: PMC9898195 DOI: 10.1158/0008-5472.can-22-1062] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 10/08/2022] [Accepted: 11/23/2022] [Indexed: 12/05/2022]
Abstract
RNA editing modifies single nucleotides of RNAs, regulating primary protein structure and protein abundance. In recent years, the diversity of proteins and complexity of gene regulation associated with RNA editing dysregulation has been increasingly appreciated in oncology. Large-scale shifts in editing have been observed in bulk tumors across various cancer types. However, RNA editing in single cells and individual cell types within tumors has not been explored. By profiling editing in single cells from lung adenocarcinoma biopsies, we found that the increased editing trend of bulk lung tumors was unique to cancer cells. Elevated editing levels were observed in cancer cells resistant to targeted therapy, and editing sites associated with drug response were enriched. Consistent with the regulation of antiviral pathways by RNA editing, higher editing levels in cancer cells were associated with reduced antitumor innate immune response, especially levels of natural killer cell infiltration. In addition, the level of RNA editing in cancer cells was positively associated with somatic point mutation burden. This observation motivated the definition of a new metric, RNA editing load, reflecting the amount of RNA mutations created by RNA editing. Importantly, in lung cancer, RNA editing load was a stronger predictor of patient survival than DNA mutations. This study provides the first single cell dissection of editing in cancer and highlights the significance of RNA editing load in cancer prognosis. SIGNIFICANCE RNA editing analysis in single lung adenocarcinoma cells uncovers RNA mutations that correlate with tumor mutation burden and cancer innate immunity and reveals the amount of RNA mutations that strongly predicts patient survival. See related commentary by Luo and Liang, p. 351.
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Affiliation(s)
- Tracey W. Chan
- Bioinformatics interdepartmental program, University of California, Los Angeles, CA, USA
| | - Jack P. Dodson
- Bioinformatics interdepartmental program, University of California, Los Angeles, CA, USA,Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, CA, USA,Department of Integrative Biology and Physiology, University of California, Los Angeles, California, CA, USA
| | - Jaron Arbet
- Department of Urology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.,Department of Human Genetics, University of California, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, CA, USA
| | - Paul C. Boutros
- Bioinformatics interdepartmental program, University of California, Los Angeles, CA, USA,Department of Urology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.,Department of Human Genetics, University of California, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, CA, USA,Molecular Biology Institute, University of California, Los Angeles, California, CA, USA,Institute for Quantitative and Computational Sciences, University of California, Los Angeles, California, CA, USA,Institute for Precision Health, University of California, Los Angeles, California, CA
| | - Xinshu Xiao
- Bioinformatics interdepartmental program, University of California, Los Angeles, CA, USA,Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, CA, USA,Molecular Biology Institute, University of California, Los Angeles, California, CA, USA,Department of Integrative Biology and Physiology, University of California, Los Angeles, California, CA, USA,Correspondence: Xinshu Xiao, ; 310-206-6522, 611 Charles E. Young Drive South, Terasaki Life Sciences Building, 2000E, UCLA, Los Angeles, CA, 90095
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In Silico Investigation of Some Compounds from the N-Butanol Extract of Centaurea tougourensis Boiss. & Reut. CRYSTALS 2022. [DOI: 10.3390/cryst12030355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Bioinformatics as a newly emerging discipline is considered nowadays a reference to characterize the physicochemical and pharmacological properties of the actual biocompounds contained in plants, which has helped the pharmaceutical industry a lot in the drug development process. In this study, a bioinformatics approach known as in silico was performed to predict, for the first time, the physicochemical properties, ADMET profile, pharmacological capacities, cytotoxicity, and nervous system macromolecular targets, as well as the gene expression profiles, of four compounds recently identified from Centaurea tougourensis via the gas chromatography–mass spectrometry (GC–MS) approach. Thus, four compounds were tested from the n-butanol (n-BuOH) extract of this plant, named, respectively, Acridin-9-amine, 1,2,3,4-tetrahydro-5,7-dimethyl- (compound 1), 3-[2,3-Dihydro-2,2-dimethylbenzofuran-7-yl]-5-methoxy-1,3,4-oxadiazol-2(3H)-one (compound 2), 9,9-Dimethoxybicyclo[3.3.1]nona-2,4-dione (compound 3), and 3-[3-Bromophenyl]-7-chloro-3,4-dihydro-10-hydroxy-1,9(2H,10H)-acridinedione (compound 4). The insilico investigation revealed that the four tested compounds could be a good candidate to regulate the expression of key genes and may also exert significant cytotoxic effects against several tumor celllines. In addition, these compounds could also be effective in the treatment of some diseases related to diabetes, skin pathologies, cardiovascular, and central nervous system disorders. The bioactive compounds of plant remain the best alternative in the context of the drug discovery and development process.
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Du Y, Lin X, Feng Q, Pan X, Song S, Yang J. Inhibition of human lung cancer cells by anti-p21Ras scFv mediated by the activatable cell-penetrating peptide. Anticancer Drugs 2022; 33:e562-e572. [PMID: 34338241 PMCID: PMC8670359 DOI: 10.1097/cad.0000000000001180] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 07/11/2021] [Indexed: 12/03/2022]
Abstract
Activatable cell-penetrating peptide (ACPP) is a tumour-targeting cell-penetrating peptide. Here, we used ACPP to carry anti-p21Ras scFv for Ras-driven cancer therapy. The ACPP-p21Ras scFv fusion protein was prepared by a prokaryotic expression system and Ni-NTA column purification. The human tumour cell lines A549, SW480, U251 and Huh7 and the normal cell line BEAS 2B were used to study the tumor-targeting and membrane-penetrating ability of ACPP-p21Ras scFv. The antitumour activity of ACPP-p21Ras scFv on A549 cells and H1299 cells in vitro was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, scratch wound healing, plate cloning and apoptosis assays. The penetration pathway of ACPP was determined by enhanced green fluorescent protein. The ACPP-p21Ras scFv fusion protein was successfully obtained at a concentration of 1.8 mg/ml. We found that ACPP-p21Ras scFv could penetrate tumour cell membranes with high expression of matrix metalloproteinase-2 (MMP-2), effectively inhibit the migration and proliferation of A549 cells and H1299 cells, and promote the apoptosis of A549 cells and H1299 cells. The membrane penetration experiment demonstrated that ACPP could enter A549 cells by direct penetration. The ability of ACPP to penetrate the membrane was affected by the addition of a membrane affinity inhibitor and a change in the potential difference across the cell membrane but not by the addition of endocytosis inhibitors and a change in temperature. The ACPP-p21Ras scFv fusion protein can penetrate tumour cells with MMP-2 expression and has antitumour activity against A549 cells and H1299 cells in vitro. This molecule is expected to become a potential antitumour drug for Ras gene-driven lung cancer.
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Affiliation(s)
- Yu Du
- Department of Pathology, Kunming Medical University, Kunming
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, Kunming, Yunnan Province, China
| | - Xinrui Lin
- Department of Pathology, Kunming Medical University, Kunming
| | - Qiang Feng
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, Kunming, Yunnan Province, China
| | - Xinyan Pan
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, Kunming, Yunnan Province, China
| | - Shuling Song
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, Kunming, Yunnan Province, China
| | - Julun Yang
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, Kunming, Yunnan Province, China
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Bouchalova P, Beranek J, Lapcik P, Potesil D, Podhorec J, Poprach A, Bouchal P. Transgelin Contributes to a Poor Response of Metastatic Renal Cell Carcinoma to Sunitinib Treatment. Biomedicines 2021; 9:biomedicines9091145. [PMID: 34572331 PMCID: PMC8467952 DOI: 10.3390/biomedicines9091145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/20/2021] [Accepted: 08/24/2021] [Indexed: 12/24/2022] Open
Abstract
Renal cell carcinoma (RCC) represents about 2-3% of all cancers with over 400,000 new cases per year. Sunitinib, a vascular endothelial growth factor tyrosine kinase receptor inhibitor, has been used mainly for first-line treatment of metastatic clear-cell RCC with good or intermediate prognosis. However, about one-third of metastatic RCC patients do not respond to sunitinib, leading to disease progression. Here, we aim to find and characterize proteins associated with poor sunitinib response in a pilot proteomics study. Sixteen RCC tumors from patients responding (8) vs. non-responding (8) to sunitinib 3 months after treatment initiation were analyzed using data-independent acquisition mass spectrometry, together with their adjacent non-cancerous tissues. Proteomics analysis quantified 1996 protein groups (FDR = 0.01) and revealed 27 proteins deregulated between tumors non-responding vs. responding to sunitinib, representing a pattern of deregulated proteins potentially contributing to sunitinib resistance. Gene set enrichment analysis showed an up-regulation of epithelial-to-mesenchymal transition with transgelin as one of the most significantly abundant proteins. Transgelin expression was silenced by CRISPR/Cas9 and RNA interference, and the cells with reduced transgelin level exhibited significantly slower proliferation. Our data indicate that transgelin is an essential protein supporting RCC cell proliferation, which could contribute to intrinsic sunitinib resistance.
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Affiliation(s)
- Pavla Bouchalova
- Department of Biochemistry, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic; (P.B.); (J.B.); (P.L.)
| | - Jindrich Beranek
- Department of Biochemistry, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic; (P.B.); (J.B.); (P.L.)
| | - Petr Lapcik
- Department of Biochemistry, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic; (P.B.); (J.B.); (P.L.)
| | - David Potesil
- Proteomics Core Facility, Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic;
| | - Jan Podhorec
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic; (J.P.); (A.P.)
- Department of Comprehensive Cancer Care, Faculty of Medicine, Masaryk University, 656 53 Brno, Czech Republic
| | - Alexandr Poprach
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic; (J.P.); (A.P.)
- Department of Comprehensive Cancer Care, Faculty of Medicine, Masaryk University, 656 53 Brno, Czech Republic
| | - Pavel Bouchal
- Department of Biochemistry, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic; (P.B.); (J.B.); (P.L.)
- Correspondence: ; Tel.: +420-549-493-251
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Wang B, Fang X, Sun X, Du C, Zhou L, Lv X, Li Y, Li H, Tang W. m 6A demethylase ALKBH5 suppresses proliferation and migration of enteric neural crest cells by regulating TAGLN in Hirschsprung's disease. Life Sci 2021; 278:119577. [PMID: 33961858 DOI: 10.1016/j.lfs.2021.119577] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 04/23/2021] [Accepted: 04/29/2021] [Indexed: 12/11/2022]
Abstract
OBJECTIVES This study aims to investigate the role of demethylase ALKBH5 mediated demethylation of TAGLN mRNA in the occurrence of Hirschsprung's disease (HSCR), and to clarify how ALKBH5 reduces the m6A level of TAGLN mRNA and inhibits its degradation, thereby inhibiting the proliferation and migration of neural crest cells, and potentially contributing to the occurrence of HSCR. MATERIAL AND METHODS Quantitative real-time PCR (qRT-PCR) and Western-Blot (WB) were conducted to test the expression level of ALKBH5 and TAGLN genes. Cell function assays were adopted to detect cell phenotypes. The qRT-PCR and methylated RNA immunoprecipitation (MeRIP-qPCR) were used to test the regulation of TAGLN by ALKBH5. RESULTS 1. Compared with control intestinal tissue, the expression level of TAGLN and ALKBH5 in the aganglionic intestinal tissue of HSCR is increased. 2. The MeRIP-PCR and dualluciferase report confirmed that ALKBH5 could bind to m6A sites of TAGLN mRNA and reduce the m6A level of TAGLN mRNA. 3. In vitro cell experiments confirmed that overexpression of ALKBH5 can inhibit the degradation of TAGLN mRNA, increase the expression of TAGLN, thereby inhibiting cell proliferation and migration. 4. A zebrafish model of ALKBH5 overexpression was constructed. Studies have shown that ALKBH5 could inhibit the proliferation and migration of zebrafish enteric neurons. CONCLUSIONS ALKBH5 could demethylate TAGLN mRNA and up-regulate TAGLN expression, leading to the inhibition of proliferation and migration of enteric neural crest cells and contributing to the occurrence of HSCR.
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Affiliation(s)
- Binyu Wang
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, China; State Key Laboratory of Reproductive Medicine, Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Xiang Fang
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, China; State Key Laboratory of Reproductive Medicine, Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Xinhe Sun
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, China
| | - Chunxia Du
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, China; State Key Laboratory of Reproductive Medicine, Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Lingling Zhou
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, China; State Key Laboratory of Reproductive Medicine, Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Xiurui Lv
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, China; State Key Laboratory of Reproductive Medicine, Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu, China; School of Medicine & Dentistry, University of Rochester NY 14642, NY, USA
| | - Yuhan Li
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, China; State Key Laboratory of Reproductive Medicine, Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Hongxing Li
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, China
| | - Weibing Tang
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, China.
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