scholarly journals Design, Synthesis and Evaluation of Core Scaffold Pyrazolone Fused Thiazolidinone Derivatives as Anticancer Agents

2021 ◽  
pp. 217-227
Author(s):  
Sumathy Arunachalam ◽  
Suresh Ramalingam ◽  
Gowrishankar Narayanasamy Lachmanan ◽  
Srinivasan Nagarajan
Keyword(s):  
Breast Cancer ◽  
Epidermal Growth Factor Receptor ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Anticancer Agents ◽  
Growth Factor Receptor ◽  
Breast Carcinoma Cell Line ◽  
Design Synthesis ◽  
Standard Drug ◽  
Epidermal Growth

Background: Cancer is the world's second leading cause of death, accounting for an estimate of more than 10 million deaths annually. The most common type of cancers in women are breast, endometrial, cervical, ovarian, colorectal, lung, and skin cancers.Among these, breast cancer is the most common in women of all ages. Human epidermal growth factor receptor 2 breast cancer is widely seen in women which test positive for the protein HER2. This protein is present in one-fifth of every breast cancer cell, which promotes the growth of cancer cells. There are several compounds available for the treatment of HER2 breast cancer in the market with varying promise in their efficacy and safety on HER2 treatment. Objective: To design synthesis and evaluation of core scaffold pyrazolone fused thiazolidinone derivatives as anticancer agents. Methods: In this study, the core scaffold pyrazolone fused thiazolidinone derivatives were designed, synthesized, and analyzed for the anticancer activity using breast carcinoma cell line (MCF-7), against the standard drug Doxorubicin. Results: Many thiazoles, fused thiazole, and pyrazole derivatives have been found to have anti-cancer and other properties. In this study, the compound 1-phenyl-3-methyl-5-pyrazolones was allowed to react with diverse benzoyl chloride as well as primary amine derivatives and transformed into ’A series of Pyrazolone fused Thiazolidinone derivatives 4A1-4A10 and 4B1- 4B10. Computational studies by Schrodinger Glide XP using the Protein 3RCD which act on the human epidermal growth factor receptor’’ was performed on the selected scheme initially and further from the docked score data the synthesis of pyrazolone fused thiazolidinone was performed. Conclusion: Among the compounds synthesized, five compounds (4A6 − 3.4 kcal/mol, 4B4 − 3.0 kcal/mol, 4A3 − 2.2 kcal/mol, 4B2 − 1.6 kcal/mol, and 4A9 − 1.3 kcal/mol) shown promising binding affinities against epidermal growth factor receptor kinase. The cytotoxic potential of the compounds was examined using a breast carcinoma cell line (MCF-7), which shown cytotoxicity close to Doxorubicin (standard drug). Our findings are an important step forward in the development of novel anticancer agents.

Recent Advances on Epidermal Growth Factor Receptor as a Molecular Target for Breast Cancer Therapeutics

2020 ◽  
Vol 21 ◽  
Author(s):  
Swathi R. Shetty ◽  
Ragini Yeeravalli ◽  
Tanya Bera ◽  
Amitava Das
Keyword(s):  
Breast Cancer ◽  
Epidermal Growth Factor Receptor ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Tyrosine Kinase ◽  
Critical Role ◽  
Growth Factor Receptor ◽  
Type I ◽  
Egfr Inhibition ◽  
Epidermal Growth

: Epidermal growth factor receptor (EGFR), a type-I transmembrane protein with intrinsic tyrosine kinase activity is activated by peptide growth factors such as EGF, epigen, amphiregulin, etc. EGFR plays a vital role in regulating cell growth, migration, and differentiation in various tissue-specific cancers. It has been reported to be overexpressed in lung, head, and neck, colon, brain, pancreatic, and breast cancer that trigger tumor progression and drug resistance. EGFR overexpression alters the signaling pathway and induces cell division, invasion, and cell survival. Our prior studies demonstrated that EGFR inhibition modulates chemosensitivity in breast cancer stem cells thereby serving as a potential drug target for breast cancer mitigation. Tyrosine kinase inhibitors (Lapatinib, Neratinib) and monoclonal antibodies (Trastuzumab) targeting EGFR have been developed and approved by the US FDA for clinical use against breast cancer. This review highlights the critical role of EGFR in breast cancer progression and enumerates the various approaches being undertaken to inhibit aggressive breast cancers by suppressing the downstream pathways. Further, the mechanisms of action of potential molecules at various stages of drug development as well as clinically approved drugs for breast cancer treatment are illustrated.

scholarly journals HER2-positive breast cancer and tyrosine kinase inhibitors: the time is now

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Ilana Schlam ◽  
Sandra M. Swain
Keyword(s):  
Breast Cancer ◽  
Epidermal Growth Factor Receptor ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Tyrosine Kinase ◽  
Kinase Inhibitors ◽  
Growth Factor Receptor ◽  
Her2 Positive ◽  
Epidermal Growth ◽  
Positive Breast Cancer

AbstractHuman epidermal growth factor receptor 2 (HER2) positive breast cancer accounts for 20–25% of all breast cancers. Multiple HER2-targeted therapies have been developed over the last few years, including the tyrosine kinase inhibitors (TKI) lapatinib, neratinib, tucatinib, and pyrotinib. These drugs target HER2 and other receptors of the epidermal growth factor receptor family, therefore each has unique efficacy and adverse event profile. HER2-directed TKIs have been studied in the early stage and advanced settings and have shown promising responses. There is increasing interest in utilizing these drugs in combination with chemotherapy and /or other HER2-directed agents in patients with central nervous system involvement, TKIs have shown to be effective in this setting for which treatment options have been previously limited and the prognosis remains poor. The aim of this review is to summarize currently approved TKIs for HER2+ breast, key clinical trials, and their use in current clinical practice.

scholarly journals Japanese subpopulation analysis of MONARCH 2: phase 3 study of abemaciclib plus fulvestrant for treatment of hormone receptor-positive, human epidermal growth factor receptor 2-negative breast cancer that progressed on endocrine therapy

Breast Cancer ◽  
2021 ◽  
Author(s):  
Kenichi Inoue ◽  
Norikazu Masuda ◽  
Hiroji Iwata ◽  
Masato Takahashi ◽  
Yoshinori Ito ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Epidermal Growth Factor Receptor ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Confidence Interval ◽  
Hormone Receptor ◽  
Growth Factor Receptor ◽  
Phase 3 ◽  
Hormone Receptor Positive ◽  
Epidermal Growth

Abstract Background This was a Japanese subpopulation analysis of MONARCH 2, a double-blind, randomized, placebo-controlled, phase 3 study of abemaciclib plus fulvestrant in patients with hormone receptor-positive, human epidermal growth factor receptor 2-negative advanced breast cancer (ABC). Methods Eligible women had progressed on (neo)adjuvant endocrine therapy (ET), ≤ 12 months from end of adjuvant ET, or on first-line ET for ABC, and had not received chemotherapy for ABC. Patients were randomized 2:1 to receive abemaciclib or placebo plus fulvestrant. The primary endpoint was progression-free survival (PFS). Secondary endpoints included overall survival (OS), pharmacokinetics (PK), health-related quality of life (HRQoL), and safety. Results In Japan, 95 patients were randomized (abemaciclib, n = 64; placebo, n = 31). At final PFS analysis (February 14, 2017), median PFS was 21.2 and 14.3 months, respectively, in the abemaciclib and placebo groups (hazard ratio: 0.672; 95% confidence interval: 0.380–1.189). Abemaciclib had a higher objective response rate (37.5%) than placebo (12.9%). PK and safety profiles for Japanese patients were consistent with those of the overall population, without clinically meaningful differences across most HRQoL dimensions evaluated. The most frequent adverse events in the abemaciclib versus placebo groups were diarrhea (95.2 versus 25.8%), neutropenia (79.4 versus 0%), and leukopenia (66.7 versus 0%). At a second data cutoff (June 20, 2019), median OS was not reached with abemaciclib and 47.3 months with placebo (hazard ratio: 0.755; 95% confidence interval: 0.390–1.463). Conclusions Results of the Japanese subpopulation were consistent with the improved clinical outcomes and manageable safety profile observed in the overall population. Clinical trial registration NCT02107703; U.S. National Library of Medicine: https://clinicaltrials.gov/ct2/show/NCT02107703.

scholarly journals Optimum duration of adjuvant trastuzumab in treatment of human epidermal growth factor receptor-2 positive early breast cancer: protocol for a network meta-analysis of randomised controlled trials

BMJ Open ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. e035802
Author(s):  
Qiancheng Hu ◽  
Xin Wang ◽  
Ye Chen ◽  
Xiaofen Li ◽  
Ting Luo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Epidermal Growth Factor Receptor ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Early Breast Cancer ◽  
Meta Analysis ◽  
Growth Factor Receptor ◽  
Her2 Positive ◽  
Human Epidermal Growth Factor ◽  
Epidermal Growth

IntroductionControversy regarding optimum duration of trastuzumab treatment remains in patients with human epidermal growth factor receptor-2 (HER2) positive early breast cancer. The objective of applying network meta-analysis (NMA) is to integrate existing evidence based on direct and indirect comparisons of efficacy and safety, and then to determine the duration of trastuzumab treatments with the greatest impact on therapeutic outcomes in HER2-positive early breast cancers.Methods and analysisElectronic searching of trastuzumab treatments for early breast cancer by titles and abstracts will be conducted for the period from inception to 16 June 2019 in PubMed, Cochrane Library, Embase and ClinicalTrils.gov, as well as the annual meetings of San Antonio Breast Cancer Symposium (SABCS), European Society of Medical Oncology (ESMO) and American Society of Clinical Oncology (ASCO) online archives. The outcomes of interest are overall survival, disease-free survival, acceptability, cardiotoxicities and grade 3 to 4 non-haematological toxicities. Two independent reviewers will screen and extract eligible data based on the inclusion and exclusion criteria, and then assess the risk of bias and evidence quality of individual studies using Cochrane Collaboration’s tool and Grades of Recommendation, Assessment, Development and Evaluation (GRADE). The heterogeneity, transitivity and inconsistency of NMA will be evaluated. In addition, we will perform subgroup and sensitivity analyses to assess the robustness and reliability of findings in our NMA.Ethics and disseminationEthics approval is not required for our NMA. Findings from our NMA will be submitted as peer-reviewed journal manuscripts and international conference reports.Trial registration numberCRD42019139109.

scholarly journals Epidermal growth factor receptor expression in breast cancer association with biologic phenotype and clinical outcomes

Cancer ◽  
2010 ◽  
Vol 116 (5) ◽  
pp. 1234-1242 ◽  
Author(s):  
Mothaffar F. Rimawi ◽  
Priya B. Shetty ◽  
Heidi L. Weiss ◽  
Rachel Schiff ◽  
C. Kent Osborne ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Epidermal Growth Factor Receptor ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Clinical Outcomes ◽  
Growth Factor Receptor ◽  
Receptor Expression ◽  
Epidermal Growth
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