PMID- 30451119 OWN - NLM STAT- MEDLINE DCOM- 20200316 LR - 20200316 IS - 1875-5992 (Electronic) IS - 1871-5206 (Linking) VI - 19 IP - 6 DP - 2019 TI - Synthesis and In Vitro Evaluation of Tetrahydroquinoline Derivatives as Antiproliferative Compounds of Breast Cancer via Targeting the GPER. PG - 760-771 LID - 10.2174/1871520618666181119094144 [doi] AB - BACKGROUND: Some reports have demonstrated the role of the G Protein-coupled Estrogen Receptor (GPER) in growth and proliferation of breast cancer cells. OBJECTIVE: In an effort to develop new therapeutic strategies against breast cancer, we employed an in silico study to explore the binding modes of tetrahydroquinoline 2 and 4 to be compared with the reported ligands G1 and G1PABA. METHODS: This study aimed to design and filter ligands by in silico studies determining their Lipinski's rule, toxicity and binding properties with GPER to achieve experimental assays as anti-proliferative compounds of breast cancer cell lines. RESULTS: In silico studies suggest as promissory two tetrahydroquinoline 2 and 4 which contain a carboxyl group instead of the acetyl group (as is needed for G1 synthesis), which add low (2) and high hindrance (4) chemical moieties to explore the polar, hydrophobic and hindrance effects. Docking and molecular dynamics simulations of the target compounds were performed with GPER to explore their binding mode and free energy values. In addition, the target small molecules were synthesized and assayed in vitro using breast cancer cells (MCF-7 and MDA-MB-231). Experimental assays showed that compound 2 decreased cell proliferation, showing IC50 values of 50microM and 25microM after 72h of treatment of MCF-7 and MDA-MB-231 cell lines, respectively. Importantly, compound 2 showed a similar inhibitory effect on proliferation as G1 compound in MDA-MB-231 cells, suggesting that both ligands reach the GPER-binding site in a similar way, as was demonstrated through in silico studies. CONCLUSION: A concentration-dependent inhibition of cell proliferation occurred with compound 2 in the two cell lines regardless of GPER. CI - Copyright(c) Bentham Science Publishers; For any queries, please email at epub@benthamscience.net. FAU - Zacarias-Lara, Oscar J AU - Zacarias-Lara OJ AD - Laboratorio de Diseno y Desarrollo de Nuevos Farmacos e Innovacion Biotecnologica (Laboratory for the Design and Development of New Drugs and Biotechnological Innovation), Escuela Superior de Medicina, Instituto Politecnico Nacional, Plan de San Luis y Diaz Miron, 11340 Mexico, CDMX, Mexico. FAU - Mendez-Luna, David AU - Mendez-Luna D AD - Laboratorio de Diseno y Desarrollo de Nuevos Farmacos e Innovacion Biotecnologica (Laboratory for the Design and Development of New Drugs and Biotechnological Innovation), Escuela Superior de Medicina, Instituto Politecnico Nacional, Plan de San Luis y Diaz Miron, 11340 Mexico, CDMX, Mexico. FAU - Martinez-Ruiz, Gustavo AU - Martinez-Ruiz G AD - Unidad de Investigacion en Enfermedades Oncologicas, Hospital Infantil de Mexico, Federico Gomez, Mexico. FAU - Garcia-Sanchez, Jose R AU - Garcia-Sanchez JR AD - Laboratorio de Oncologia Molecular y Estres Oxidativo, Seccion de Estudios de Posgrado e Investigacion, Escuela Superior de Medicina, Instituto Politecnico Nacional, Plan de San Luis y Diaz Miron, 11340 Mexico, CDMX, Mexico. FAU - Fragoso-Vazquez, Manuel J AU - Fragoso-Vazquez MJ AD - Laboratorio de Diseno y Desarrollo de Nuevos Farmacos e Innovacion Biotecnologica (Laboratory for the Design and Development of New Drugs and Biotechnological Innovation), Escuela Superior de Medicina, Instituto Politecnico Nacional, Plan de San Luis y Diaz Miron, 11340 Mexico, CDMX, Mexico. AD - Departamento de Quimica Organica, Escuela Nacional de Ciencias, Biologicas, Instituto Politecnico Nacional, Prolongacion de Carpio y Plan de Ayala, Mexico, CDMX., 11340 Mexico. FAU - Bello, Martiniano AU - Bello M AD - Laboratorio de Diseno y Desarrollo de Nuevos Farmacos e Innovacion Biotecnologica (Laboratory for the Design and Development of New Drugs and Biotechnological Innovation), Escuela Superior de Medicina, Instituto Politecnico Nacional, Plan de San Luis y Diaz Miron, 11340 Mexico, CDMX, Mexico. FAU - Becerra-Martinez, Elvia AU - Becerra-Martinez E AD - Laboratorio de RMN, Centro de Nanociencias y Micro y Nanotecnologias, Instituto Politecnico Nacional, Calle Luis Enrique Erro s/n, Unidad Profesional Adolfo Lopez Mateos, Gustavo A, Madero, 07738 Mexico, Ciudad de Mexico, Mexico. FAU - Garcia-Vazquez, Juan B AU - Garcia-Vazquez JB AD - Laboratorio de Diseno y Desarrollo de Nuevos Farmacos e Innovacion Biotecnologica (Laboratory for the Design and Development of New Drugs and Biotechnological Innovation), Escuela Superior de Medicina, Instituto Politecnico Nacional, Plan de San Luis y Diaz Miron, 11340 Mexico, CDMX, Mexico. FAU - Correa-Basurto, Jose AU - Correa-Basurto J AD - Laboratorio de Diseno y Desarrollo de Nuevos Farmacos e Innovacion Biotecnologica (Laboratory for the Design and Development of New Drugs and Biotechnological Innovation), Escuela Superior de Medicina, Instituto Politecnico Nacional, Plan de San Luis y Diaz Miron, 11340 Mexico, CDMX, Mexico. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - Anticancer Agents Med Chem JT - Anti-cancer agents in medicinal chemistry JID - 101265649 RN - 0 (Antineoplastic Agents) RN - 0 (GPER1 protein, human) RN - 0 (Quinolines) RN - 0 (Receptors, Estrogen) RN - 0 (Receptors, G-Protein-Coupled) RN - CCR50N1Z9G (1,2,3,4-tetrahydroquinoline) SB - IM MH - Antineoplastic Agents/chemical synthesis/chemistry/*pharmacology MH - Breast Neoplasms/*drug therapy/metabolism/pathology MH - Cell Proliferation/drug effects MH - Cell Survival/drug effects MH - Dose-Response Relationship, Drug MH - Drug Screening Assays, Antitumor MH - Female MH - Humans MH - Models, Molecular MH - Molecular Structure MH - Quinolines/chemical synthesis/chemistry/*pharmacology MH - Receptors, Estrogen/*antagonists & inhibitors/metabolism MH - Receptors, G-Protein-Coupled/*antagonists & inhibitors/metabolism MH - Structure-Activity Relationship MH - Thermodynamics MH - Tumor Cells, Cultured OTO - NOTNLM OT - GPER OT - MCF-7 OT - MDA-MB-231 OT - Tetrahydroquinoline derivatives OT - antiproliferation OT - breast cancer OT - cell growth inhibitor OT - molecular docking OT - virtual screening. EDAT- 2018/11/20 06:00 MHDA- 2020/03/17 06:00 CRDT- 2018/11/20 06:00 PHST- 2018/05/09 00:00 [received] PHST- 2018/07/03 00:00 [revised] PHST- 2018/11/04 00:00 [accepted] PHST- 2018/11/20 06:00 [pubmed] PHST- 2020/03/17 06:00 [medline] PHST- 2018/11/20 06:00 [entrez] AID - ACAMC-EPUB-94611 [pii] AID - 10.2174/1871520618666181119094144 [doi] PST - ppublish SO - Anticancer Agents Med Chem. 2019;19(6):760-771. doi: 10.2174/1871520618666181119094144.