title: The products of the reaction between 6-amine-1,3-dimethyl uracil and bis-chalcones induce cytotoxicity with massive vacuolation in HeLa cervical cancer cell line.
abstract: As a part of our research in the chemistry of chalcones we have prepared four pyrimidine monoadducts of bis-chalcones through the reaction with 6-amino-1,3-dimethyl uracil. These compounds displayed cytotoxicity with a massive vacuolation in different human cell lines in vitro. Compound 6 was the most cytotoxic inducer of vacuoles, this compound induced G1 phase cell cycle arrest, and their cytotoxicity went without morphological and biochemical evidence of apoptotic cell death in HeLa cells. In addition, our results showed that this vacuole formation does not require de novo protein synthesis and the content vacuolar is acidic. Compound 6 induce necrotic cell death with excessive vacuolation, similar to a process of autophagy. Spautin-1 an inhibitor of autophagy, decreased the transformation of microtubule-associated protein 1 light chain 3 (LC3B-I) to LC3B-II and the vacuolation induced by compound 6 in HeLa cells, both autophagy processes. These compounds could be of pivotal importance in the study of non-apoptotic cell death with vacuole formation and could be useful in research into new autophagy inhibitors agents.
authors: Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán DF, México City 04510, Mexico. jdsolanobecerra@comunidad.unam.mx
authors: José D
authors: JD
authors: Solano
authors: Ignacio
authors: I
authors: González-Sánchez
authors: Marco A
authors: MA
authors: Cerbón
authors: Ángel
authors: Á
authors: Guzmán
authors: Miguel A
authors: MA
authors: Martínez-Urbina
authors: Miguel A
authors: MA
authors: Vilchis-Reyes
authors: Eduardo C
authors: EC
authors: Martínez-Zuñiga
authors: Cuauhtémoc
authors: C
authors: Alvarado
authors: Angelina
authors: A
authors: Quintero
authors: Eduardo
authors: E
authors: Díaz
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D002453:Cell Cycle / Q000187:drug effects; D049109:Cell Proliferation / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D047188:Chalcones / Q000737:chemistry / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004354:Drug Screening Assays, Antitumor; D006367:HeLa Cells; D006801:Humans; D015394:Molecular Structure; D013329:Structure-Activity Relationship; D014407:Tumor Cells, Cultured; D014498:Uracil / Q000031:analogs & derivatives* / Q000737:chemistry / Q000494:pharmacology
chemical_list: D000970:Antineoplastic Agents; D047188:Chalcones; D014498:Uracil