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Rohilla A, Rohilla S. Drug Repositioning: A Monetary Stratagem to Discover a New Application of Drugs. Curr Drug Discov Technol 2024; 21:e101023222023. [PMID: 38629171 DOI: 10.2174/0115701638253929230922115127] [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: 03/19/2023] [Revised: 06/29/2023] [Accepted: 08/09/2023] [Indexed: 04/19/2024]
Abstract
Drug repurposing, also referred to as drug repositioning or drug reprofiling, is a scientific approach to the detection of any new application for an already approved or investigational drug. It is a useful policy for the invention and development of new pharmacological or therapeutic applications of different drugs. The strategy has been known to offer numerous advantages over developing a completely novel drug for certain problems. Drug repurposing has numerous methodologies that can be categorized as target-oriented, drug-oriented, and problem-oriented. The choice of the methodology of drug repurposing relies on the accessible information about the drug molecule and like pharmacokinetic, pharmacological, physicochemical, and toxicological profile of the drug. In addition, molecular docking studies and other computer-aided methods have been known to show application in drug repurposing. The variation in dosage for original target diseases and novel diseases presents a challenge for researchers of drug repurposing in present times. The present review critically discusses the drugs repurposed for cancer, covid-19, Alzheimer's, and other diseases, strategies, and challenges of drug repurposing. Moreover, regulatory perspectives related to different countries like the United States (US), Europe, and India have been delineated in the present review.
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Affiliation(s)
- Ankur Rohilla
- Department of Pharmacology, University Institute of Pharmaceutical Sciences, Chandigarh University, Gharuan, 140413, Mohali, India
| | - Seema Rohilla
- Department of Pharmacy, Panipat Institute of Engineering and Technology, Panipat, Haryana, India
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Laurino S, Mazzone P, Ruggieri V, Zoppoli P, Calice G, Lapenta A, Ciuffi M, Ignomirelli O, Vita G, Sgambato A, Russi S, Falco G. Cationic Channel TRPV2 Overexpression Promotes Resistance to Cisplatin-Induced Apoptosis in Gastric Cancer Cells. Front Pharmacol 2021; 12:746628. [PMID: 34671260 PMCID: PMC8521017 DOI: 10.3389/fphar.2021.746628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 08/23/2021] [Indexed: 01/30/2023] Open
Abstract
Gastric cancer (GC) is characterized by poor efficacy and modest clinical impact of current therapies, in which apoptosis evasion is relevant. Intracellular calcium homeostasis dysregulation is associated with apoptosis escaping, and aberrant expression of calcium regulator genes could promote GC drug resistance. Since we previously found a prognostic value for TRPV2 calcium channel expression in GC, we aimed to characterize the role of TRPV2 in cisplatin resistance. Using the TCGA-STAD dataset, we performed a differential gene expression analysis between GC samples in upper and lower tertiles of TRPV2 expression, and then through a gene set analysis, we highlighted the enriched ontology and canonical pathways. We used qRT-PCR to assess TRPV2 expression in three GC cell lines and flow cytometry to evaluate cisplatin-induced cell death rates. Calcium green-1-AM assay was used to estimate differences in intracellular Ca2+ concentrations after inhibition of TRPV2. We engineered AGS cell line to overexpress TRPV2 and used confocal microscopy to quantify its overexpression and localization and flow cytometry to evaluate their sensitivity to cisplatin. Consistent with our hypothesis, among enriched gene sets, we found a significant number of those involved in the regulation of apoptosis. Subsequently, we found an inverse correlation between TRPV2 expression and sensitivity to cisplatin in GC cell lines. Moreover, we demonstrated that inhibition of TRPV2 activity by tranilast blocks the efflux of Ca2+ ions and, in combination with cisplatin, induced a significant increase of apoptotic cells (p = 0.004). We also demonstrated that TRPV2 exogenous expression confers a drug-resistant phenotype, and that tranilast is able to revert this phenotype, restoring cisplatin sensitivity. Our findings consistently suggested that TRPV2 could be a potential target for overcoming cisplatin resistance by promoting apoptosis. Notably, our data are a prerequisite for the potential reposition of tranilast to the treatment of GC patients and anticipate the in vivo evaluation.
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Affiliation(s)
- Simona Laurino
- Laboratory of Preclinical and Translational Research, IRCCS-CROB Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Pellegrino Mazzone
- Biogem Scarl, Istituto di Ricerche Genetiche "Gaetano Salvatore", Ariano Irpino, Italy
| | - Vitalba Ruggieri
- Laboratory of Preclinical and Translational Research, IRCCS-CROB Referral Cancer Center of Basilicata, Rionero in Vulture, Italy.,UOC Clinical Pathology, Altamura Hospital, Altamura, Italy
| | - Pietro Zoppoli
- Laboratory of Preclinical and Translational Research, IRCCS-CROB Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Giovanni Calice
- Laboratory of Preclinical and Translational Research, IRCCS-CROB Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Antonella Lapenta
- Trial Office, IRCCS-CROB Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Mario Ciuffi
- Endoscopy Unit, IRCCS-CROB Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Orazio Ignomirelli
- Endoscopy Unit, IRCCS-CROB Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Giulia Vita
- Pathology Unit, IRCCS-CROB Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Alessandro Sgambato
- Laboratory of Preclinical and Translational Research, IRCCS-CROB Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Sabino Russi
- Laboratory of Preclinical and Translational Research, IRCCS-CROB Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Geppino Falco
- Biogem Scarl, Istituto di Ricerche Genetiche "Gaetano Salvatore", Ariano Irpino, Italy.,Department of Biology, University of Naples Federico II, Naples, Italy
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