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Ahmed Z, Ikram M, Khan I, Bashir K, Shah AJ, Hussain Z, Khan T. LC-ESI-MS/MS-based molecular networking, antioxidant, anti-glioma activity and molecular docking studies of Clematis graveolens. PLANT METHODS 2024; 20:111. [PMID: 39054477 PMCID: PMC11271027 DOI: 10.1186/s13007-024-01221-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 06/03/2024] [Indexed: 07/27/2024]
Abstract
Clematis graveolens Lindl., an indigenous climbing plant found in the Himalayan areas, is used by local communities for the treatment of neck tumors. The objective of this work is to examine the comprehensive metabolomic profile, antioxidant capability, in vitro and in silico anti-glioma effects on U-87 human glioma cell lines of the crude extract and fractions from C. graveolens. Liquid chromatography coupled with mass spectroscopy (LC-MS/MS) was used to establish detailed metabolite profiling of C. graveolens. The assessment of cell cytotoxicity was conducted using MTT cell viability assay on U-87 and BHK-21. Through molecular docking studies, the mode of inhibition and binding interaction between identified compounds and target proteins were also determined to evaluate the in vitro results. The use of LC-MS/MS-based global natural products social (GNPS) molecular networking analysis resulted in the identification of 27 compounds. The crude extract, ethyl acetate fraction, and chloroform fraction exhibited significant inhibitory activity against the U-87 cell lines, with IC50 values of 112.0, 138.1, and 142.7 µg/mL, respectively. The ethyl acetate fraction exhibited significant inhibitory concentration for 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) activity, 2,2-diphenyl-1-picrylhydrazyl (DPPH) activity and the metal chelation activity with IC50 value of 39.50 µg/mL, 32.27 µg/mL, and 53.46 µg/mL, respectively. The crude extract showed maximum total phenolic, and total flavonoid concentration measuring 338.7 µg GAE/mg, and 177.04 µg QE/mg, respectively. The findings of this study indicate that C. graveolens consists of a diverse range of active phytoconstituents that possess antioxidant and anti-glioma properties.
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Affiliation(s)
- Zubair Ahmed
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad campus, 22060, Abbottabad, KP, Pakistan
| | - Muhammad Ikram
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad campus, 22060, Abbottabad, KP, Pakistan
| | - Ishaq Khan
- Department of Molecular Biology and Genetics, Institute of Basic Medical Sciences, Khyber Medical University, 25000, Peshawar, Pakistan
- Texas A&M Health Science Centre, Joe H. Reynolds Medical Build 159, College Station, 77843, Texas, USA
| | - Kashif Bashir
- Department of Pharmaceutical Sciences, Pak Austria Fachhochschule: Institute of Applied Sciences and Technology, 22600, Haripur, Pakistan
| | - Abdul Jabbar Shah
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad campus, 22060, Abbottabad, KP, Pakistan
| | - Zahid Hussain
- Department of Chemistry, COMSATS University Islamabad, Abbottabad campus, 22060, Abbottabad, KP, Pakistan
| | - Taous Khan
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad campus, 22060, Abbottabad, KP, Pakistan.
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Beyett TS, Rana JK, Schaeffner IK, Heppner DE, Eck MJ. Structural Analysis of the Macrocyclic Inhibitor BI-4020 Binding to EGFR Kinase. ChemMedChem 2024; 19:e202300343. [PMID: 38523074 PMCID: PMC11212799 DOI: 10.1002/cmdc.202300343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
A novel macrocyclic inhibitor of mutant EGFR (BI-4020) has shown promise in pre-clinical studies of T790M and C797S drug-resistant non-small cell lung cancer. To better understand the molecular basis for BI-4020 selectivity and potency, we have carried out biochemical activity assays and structural analysis with X-ray crystallography. Biochemical potencies agree with previous studies indicating that BI-4020 is uniquely potent against drug-resistant L858R/T790M and L858R/T790M/C797S variants. X-ray structures with wild-type (2.4 Å) and T790M/V948R (3.1 Å) EGFR kinase domains show that BI-4020 is likely rendered selective due to interactions with the kinase domain hinge region as well as T790M, akin to Osimertinib. Additionally, BI-4020 is also rendered more potent due to its constrained macrocycle geometry as well as additional H-bonds to conserved K745 and T845 residues in both active and inactive conformations. These findings taken together show how this novel macrocyclic inhibitor is both highly potent and selective for mutant EGFR in a reversible mechanism and motivate structure-inspired approaches to developing targeted therapies in medicinal oncology.
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Affiliation(s)
- Tyler S. Beyett
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Jaimin K. Rana
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Ilse K. Schaeffner
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - David E. Heppner
- Department of Chemistry, University at Buffalo, Buffalo, NY 14260, USA
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14203
| | - Michael J. Eck
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
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Favorito V, Ricciotti I, De Giglio A, Fabbri L, Seminerio R, Di Federico A, Gariazzo E, Costabile S, Metro G. Non-small cell lung cancer: an update on emerging EGFR-targeted therapies. Expert Opin Emerg Drugs 2024; 29:139-154. [PMID: 38572595 DOI: 10.1080/14728214.2024.2331139] [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: 10/17/2023] [Accepted: 03/12/2024] [Indexed: 04/05/2024]
Abstract
INTRODUCTION Current research in EGFR-mutated NSCLC focuses on the management of drug resistance and uncommon mutations, as well as on the opportunity to extend targeted therapies' field of action to earlier stages of disease. AREAS COVERED We conducted a review analyzing literature from the PubMed database with the aim to describe the current state of art in the management of EGFR-mutated NSCLC, but also to explore new strategies under investigation. To this purpose, we collected recruiting phase II-III trials registered on Clinicaltrials.govand conducted on EGFR-mutated NSCLC both in early and advanced stage. EXPERT OPINION With this review, we want to provide an exhaustive overview of current and new potential treatments in EGFR-mutated NSCLC, with emphasis on the most promising newly investigated strategies, such as association therapies in the first-line setting involving EGFR-TKIs and chemotherapy (FLAURA2) or drugs targeting different driver pathways (MARIPOSA). We also aimed at unearthing challenges to achieve in this field, specifically the need to fully exploit already available compounds while developing new ones, the management of new emerging toxicities and the necessity to improve our biological understanding of the disease to design trials with a solid scientific rationale and to allow treatment personalization such in case of uncommon mutations.
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Affiliation(s)
- Valentina Favorito
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Ilaria Ricciotti
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Andrea De Giglio
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Laura Fabbri
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Renata Seminerio
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Alessandro Di Federico
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Eleonora Gariazzo
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Silvia Costabile
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Giulio Metro
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
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Jeon J, Jang SY, Kwak EJ, Lee SH, Byun JY, Kim YY, Ahn YG, Singh P, Moon K, Kim IS. Design and synthesis of 4th generation EGFR inhibitors against human triple (Del19/T790M/C797S) mutation. Eur J Med Chem 2023; 261:115840. [PMID: 37783102 DOI: 10.1016/j.ejmech.2023.115840] [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: 08/14/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/04/2023]
Abstract
Epidermal growth factor receptor (EGFR)-targeted therapy is used to treat EGFR mutation-induced non-small cell lung cancer (NSCLC). However, its efficacy does not last beyond a certain period due to the development of primary and secondary resistance. First and second-generation inhibitors (e.g., gefitinib, erlotinib, and afatinib) induce EGFR T790M mutations, while third-generation inhibitors (e.g., osimertinib) induce C797S as a major target resistance mutation. Therefore, the C797S mutation is being actively researched. In this study, we investigated the structure-activity relationship of several synthesized compounds as fourth-generation inhibitors against the C797S mutation. We identified a compound 13k that displayed nanomolar potency and high selectivity. Moreover, we used a triple mutant xenograft mouse model to evaluate the in vivo efficacy of 13k in inhibiting EGFR C797S, which demonstrated exceptional profiles and satisfactory EGFR C797S inhibition efficacy. Based on its excellent in vitro and in vivo profiles, compound 13k can be considered a promising candidate for treating EGFR C797S mutations.
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Affiliation(s)
- Jiyoung Jeon
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea; Hanmi Research Center, Hanmi Pharmaceutical Co., Ltd., Hwaseong, 18469, Republic of Korea
| | - Sun Young Jang
- Hanmi Research Center, Hanmi Pharmaceutical Co., Ltd., Hwaseong, 18469, Republic of Korea
| | - Eun Joo Kwak
- Hanmi Research Center, Hanmi Pharmaceutical Co., Ltd., Hwaseong, 18469, Republic of Korea
| | - Sun Hoe Lee
- Hanmi Research Center, Hanmi Pharmaceutical Co., Ltd., Hwaseong, 18469, Republic of Korea
| | - Joo-Yun Byun
- Hanmi Research Center, Hanmi Pharmaceutical Co., Ltd., Hwaseong, 18469, Republic of Korea
| | - Yu-Yon Kim
- Hanmi Research Center, Hanmi Pharmaceutical Co., Ltd., Hwaseong, 18469, Republic of Korea
| | - Young Gil Ahn
- Hanmi Research Center, Hanmi Pharmaceutical Co., Ltd., Hwaseong, 18469, Republic of Korea
| | - Pargat Singh
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Kyeongwon Moon
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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Singh S, Sadhukhan S, Sonawane A. 20 years since the approval of first EGFR-TKI, gefitinib: Insight and foresight. Biochim Biophys Acta Rev Cancer 2023; 1878:188967. [PMID: 37657684 DOI: 10.1016/j.bbcan.2023.188967] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/14/2023] [Accepted: 08/20/2023] [Indexed: 09/03/2023]
Abstract
Epidermal growth factor receptor (EGFR) actively involves in modulation of various cancer progression related mechanisms including angiogenesis, differentiation and migration. Therefore, targeting EGFR has surfaced as a prominent approach for the treatment of several types of cancers, including non-small cell lung cancer (NSCLC), pancreatic cancer, glioblastoma. Various first, second and third generation of EGFR tyrosine kinase inhibitors (EGFR-TKIs) have demonstrated effectiveness as an anti-cancer therapeutics. However, rapid development of drug resistance and mutations still remains a major challenge for the EGFR-TKIs therapy. Overcoming from intrinsic and acquired resistance caused by EGFR mutations warrants the further exploration of alternative strategies and discovery of novel inhibitors. In this review, we delve into the breakthrough discoveries have been made in previous 20 years, and discuss the currently ongoing efforts aimed to circumvent the chemo-resistance. We also highlight the new challenges, limitations and future directions for the development of improved therapeutic approaches such as fourth-generation EGFR-TKIs, peptides, nanobodies, PROTACs etc.
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Affiliation(s)
- Satyam Singh
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Madhya Pradesh 453 552, India
| | - Sushabhan Sadhukhan
- Department of Chemistry, Indian Institute of Technology Palakkad, Kerala 678 623, India; Department of Biological Sciences & Engineering, Indian Institute of Technology Palakkad, Kerala 678 623, India.
| | - Avinash Sonawane
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Madhya Pradesh 453 552, India.
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Damghani T, Wittlinger F, Beyett TS, Eck MJ, Laufer SA, Heppner DE. Structural elements that enable specificity for mutant EGFR kinase domains with next-generation small-molecule inhibitors. Methods Enzymol 2023; 685:171-198. [PMID: 37245901 PMCID: PMC10445336 DOI: 10.1016/bs.mie.2023.03.013] [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] [Indexed: 05/30/2023]
Abstract
Specificity for a desired enzyme target is an essential property of small-molecule inhibitors. Molecules targeting oncogenic driver mutations in the epidermal growth factor receptor (EGFR) kinase domain have had a considerable clinical impact due to their selective binding to cancer-causing mutants compared to wild type. Despite the availability of clinically approved drugs for cancers driven by EGFR mutants, persistent challenges in drug resistance in the past decades have led to newer generations of drugs with divergent chemical structures. The current clinical challenges are mainly due to acquired resistance to third-generation inhibitors, including by the acquisition of the C797S mutation. Several diverse fourth-generation candidates and tool compounds that inhibit the C797S mutant have emerged, and their structural characterization has revealed molecular factors that allow for EGFR mutant selective binding. Here, we have reviewed all known structurally-characterized EGFR TKIs targeting clinically-relevant mutations to identify specific features that enable C797S inhibition. Newer generation EGFR inhibitors exhibit consistent and previously underutilized hydrogen bonding interactions with the conserved K745 and D855 residue side chains. We also consider binding modes and hydrogen bonding interactions of inhibitors targeting the classical ATP and the more unique allosteric sites.
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Affiliation(s)
- Tahereh Damghani
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY, United States
| | - Florian Wittlinger
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmaceutical Sciences, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Tyler S Beyett
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, United States; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, United States
| | - Michael J Eck
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, United States; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, United States
| | - Stefan A Laufer
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmaceutical Sciences, Eberhard Karls Universität Tübingen, Tübingen, Germany; Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", Eberhard Karls Universität Tübingen, Tübingen, Germany; Tübingen Center for Academic Drug Discovery & Development (TüCAD2), Tübingen, Germany
| | - David E Heppner
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY, United States; Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States.
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Chen H, Lai M, Zhang T, Chen Y, Tong L, Zhu S, Zhou Y, Ren X, Ding J, Xie H, Lu X, Ding K. Conformational Constrained 4-(1-Sulfonyl-3-indol)yl-2-phenylaminopyrimidine Derivatives as New Fourth-Generation Epidermal Growth Factor Receptor Inhibitors Targeting T790M/C797S Mutations. J Med Chem 2022; 65:6840-6858. [PMID: 35446588 DOI: 10.1021/acs.jmedchem.2c00168] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Tertiary C797S mutation of epidermal growth factor receptor (EGFR)-mediated resistance in non-small-cell-lung-cancer (NSCLC) patients is still an unmet clinical need. Several classes of adenosine 5'-triphosphate-competitive or allosteric EGFRT790M/C797S inhibitors and degraders have been developed, but none of them have received approval from the regulatory agencies. Herein, we report the structure-based design of conformational constrained 4-(1-ethylsufonyl-3-indolyl)-2-phenylaminopyrimidines as new EGFRT790M/C797S inhibitors by using a macrocyclization strategy. Representative compound 18j potently inhibited EGFR19del/T790M/C797S and EGFRL858R/T790M/C797S mutants with IC50 values of 15.8 and 23.6 nM and suppressed Ba/F3-EGFRL858R/T790M/C797S and Ba/F3-EGFR19del/T790M/C797S cells with IC50 values of 0.036 and 0.052 μM, respectively, which is 10-20-fold more potent than brigatinib. 18j also potently inhibited the EGFR19del/T790M/C797S-mutated PC-9-OR NSCLC cell proliferation with an IC50 value of 0.644 μM but was less potent for parental Ba/F3 and A431 cells. This study provides a new lead compound for drug discovery to combat EGFRC797S-mediated resistance in NSCLC patients.
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Affiliation(s)
- Hao Chen
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Discovery of Chinese Ministry of Education (MOE), Guangzhou City Key Laboratory of Precision Chemical Drug Development, School of Pharmacy and the 1st Affiliated Hospital (Huaqiao Hospital), Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Mengzhen Lai
- Division of Antitumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, #555 Zuchongzhi Road, Shanghai 201203, China.,Department of Pharmacology, School of Pharmacy, Fudan University, #826 Zhangheng Road, Shanghai 201203, China
| | - Tao Zhang
- Division of Antitumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, #555 Zuchongzhi Road, Shanghai 201203, China
| | - Yuqing Chen
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Discovery of Chinese Ministry of Education (MOE), Guangzhou City Key Laboratory of Precision Chemical Drug Development, School of Pharmacy and the 1st Affiliated Hospital (Huaqiao Hospital), Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Linjiang Tong
- Division of Antitumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, #555 Zuchongzhi Road, Shanghai 201203, China
| | - Sujie Zhu
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Yang Zhou
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Discovery of Chinese Ministry of Education (MOE), Guangzhou City Key Laboratory of Precision Chemical Drug Development, School of Pharmacy and the 1st Affiliated Hospital (Huaqiao Hospital), Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Xiaomei Ren
- State Key Laboratory of Bioorganic and Nature Product Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, #345 Lingling Road, Shanghai 200032, China
| | - Jian Ding
- Division of Antitumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, #555 Zuchongzhi Road, Shanghai 201203, China.,University of Chinese Academy of Sciences, #19 Yuquan Road, Beijing 100049, China
| | - Hua Xie
- Division of Antitumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, #555 Zuchongzhi Road, Shanghai 201203, China.,Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Cuiheng New District, Zhongshan 528400, China.,University of Chinese Academy of Sciences, #19 Yuquan Road, Beijing 100049, China
| | - Xiaoyun Lu
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Discovery of Chinese Ministry of Education (MOE), Guangzhou City Key Laboratory of Precision Chemical Drug Development, School of Pharmacy and the 1st Affiliated Hospital (Huaqiao Hospital), Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Ke Ding
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Discovery of Chinese Ministry of Education (MOE), Guangzhou City Key Laboratory of Precision Chemical Drug Development, School of Pharmacy and the 1st Affiliated Hospital (Huaqiao Hospital), Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China.,State Key Laboratory of Bioorganic and Nature Product Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, #345 Lingling Road, Shanghai 200032, China
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Abourehab MAS, Alqahtani AM, Youssif BGM, Gouda AM. Globally Approved EGFR Inhibitors: Insights into Their Syntheses, Target Kinases, Biological Activities, Receptor Interactions, and Metabolism. Molecules 2021; 26:6677. [PMID: 34771085 PMCID: PMC8587155 DOI: 10.3390/molecules26216677] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/28/2021] [Accepted: 11/02/2021] [Indexed: 02/06/2023] Open
Abstract
Targeting the EGFR with small-molecule inhibitors is a confirmed valid strategy in cancer therapy. Since the FDA approval of the first EGFR-TKI, erlotinib, great efforts have been devoted to the discovery of new potent inhibitors. Until now, fourteen EGFR small-molecule inhibitors have been globally approved for the treatment of different types of cancers. Although these drugs showed high efficacy in cancer therapy, EGFR mutations have emerged as a big challenge for these drugs. In this review, we focus on the EGFR small-molecule inhibitors that have been approved for clinical uses in cancer therapy. These drugs are classified based on their chemical structures, target kinases, and pharmacological uses. The synthetic routes of these drugs are also discussed. The crystal structures of these drugs with their target kinases are also summarized and their bonding modes and interactions are visualized. Based on their binding interactions with the EGFR, these drugs are also classified into reversible and irreversible inhibitors. The cytotoxicity of these drugs against different types of cancer cell lines is also summarized. In addition, the proposed metabolic pathways and metabolites of the fourteen drugs are discussed, with a primary focus on the active and reactive metabolites. Taken together, this review highlights the syntheses, target kinases, crystal structures, binding interactions, cytotoxicity, and metabolism of the fourteen globally approved EGFR inhibitors. These data should greatly help in the design of new EGFR inhibitors.
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Affiliation(s)
- Mohammed A. S. Abourehab
- Department of Pharmaceutics, Faculty of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia;
| | - Alaa M. Alqahtani
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Bahaa G. M. Youssif
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt;
| | - Ahmed M. Gouda
- Department of Medicinal Chemistry, Faculty of pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
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