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Abutorabi ES, Poursheikhani A, Kashani B, Shamsaiegahkani S, Haghpanah V, Bashash D, Mousavi SA, Momeny M, Ghaffari SH. The effects of Abemaciclib on cell cycle and apoptosis regulation in anaplastic thyroid cancer cells. Mol Biol Rep 2023; 50:4073-4082. [PMID: 36877344 DOI: 10.1007/s11033-023-08255-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 01/05/2023] [Indexed: 03/07/2023]
Abstract
BACKGROUND Anaplastic thyroid cancer (ATC) is an aggressive subtype of thyroid cancer, accounting for 1 to 2% of all cases. Deregulations of cell cycle regulatory genes including cyclins, cyclin-dependent kinases (CDKs), and endogenous inhibitors of CDKs (CKIs) are hallmarks of cancer cells and hence, studies indicate the inhibition of CDK4/6 kinases and cell cycle progression as potent therapeutic strategies. In this study, we investigated the anti-tumor activity of Abemaciclib, a CDK4 and CDK6 inhibitor, in ATC cell lines. METHODS AND RESULTS The ATC cell lines C643 and SW1736 were selected to study the antiproliferative effects of Abemaciclib using a cell proliferation assay and crystal violet staining assay. Annexin V/PI staining and cell cycle analysis by flow cytometry were also performed to examine the effects on apoptosis induction and cell cycle arrest. Wound healing assay and zymography analysis examined the effects of the drug on invasive abilities of ATC cells and Western blot analyses were applied to further study the anti-tumor mechanism of Abemaciclib, in addition to combination treatment with alpelisib. Our data demonstrated that Abemaciclib significantly inhibited cell proliferation and increased cellular apoptosis and cell cycle arrest in ATC cell lines, while considerably reducing cell migration and colony formation. The mechanism seemed to involve the PI3K pathway. CONCLUSION Our preclinical data highlight CDK4/6 as interesting therapeutic targets in ATC and suggest CDK4/6-blockade therapies as promising strategies in this malignancy.
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Affiliation(s)
- Elaheh S Abutorabi
- Hematology/Oncology and Stem Cell Transplantation Research Center, School of Medicine, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Arash Poursheikhani
- Medical Genetics Research Center, Department of Medical Genetics and Molecular Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bahareh Kashani
- Hematology/Oncology and Stem Cell Transplantation Research Center, School of Medicine, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Sahar Shamsaiegahkani
- Hematology/Oncology and Stem Cell Transplantation Research Center, School of Medicine, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Haghpanah
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seied A Mousavi
- Hematology/Oncology and Stem Cell Transplantation Research Center, School of Medicine, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Momeny
- The Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA.
| | - Seyed H Ghaffari
- Hematology/Oncology and Stem Cell Transplantation Research Center, School of Medicine, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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