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Chai C, Tang H, Yi J, Li L, Yu C, Su Y, Miao L, Ye Z, Wang Z, Luo W, Hu J, Zhang H, Miao X, Xu H, Zhou W. Establishment and characterization of DPC-X4: a novel mixed-type ampullary cancer cell line. Hum Cell 2024; 37:531-545. [PMID: 38253956 DOI: 10.1007/s13577-023-01023-0] [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] [Received: 11/25/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024]
Abstract
Mixed-type ampullary cancer is a distinct subtype of ampullary cancer that manifests a merging of the biological characteristics of both intestinal and pancreaticobiliary subtypes. The absence of established cell lines specific to this subtype has resulted in a concomitant scarcity of research on its tumorigenic mechanisms and the development of novel therapeutic modalities. The present study achieved the successful establishment of a novel mixed-type ampullary cancer cell line, designated DPC-X4 through primary culture techniques. Subsequent analyses pertaining to phenotypic characteristics, molecular profiling, biomarker identification, and histological features validated the DPC-X4 cell line as a potent model for delineating the pathogenesis of mixed-type ampullary cancer and facilitating the development of new pharmacological agents. This newly established cell line was subjected to continuous cultivation for 1 year, with stable passaging for over 50 generations. Notably, the DPC-X4 cell line manifested typical morphological features associated with epithelial tumors. Furthermore, the population doubling time for the DPC-X4 cell line was determined at 70 h. Short tandem repeat (STR) analysis confirmed that the DPC-X4 cell line exhibited a high genetic concordance with the primary tumor from the patient. Karyotypic profiling indicated an abnormal sub-triploid karyotype, with representative karyotypes of 57, XXY inv (9), 14p + , 15p + , der (17), + mar. The DPC-X4 cell line demonstrated a high capacity for efficient organoid formation under suspension culture conditions. In addition, the subcutaneous inoculation of DPC-X4 cells into NXG mice led to the formation of xenografted tumors. The results of drug sensitivity testing indicated that DPC-X4 cells were sensitive to paclitaxel and resistant to oxaliplatin, 5-fluorouracil, and gemcitabine. Immunohistochemistry revealed positive expression of CK7, CK19, and CK20 in DPC-X4 cells, while CDX2 demonstrated negative expression. In addition, positive expression of E-cadherin and vimentin was identified in DPC-X4 cells, with a proliferation index indicated by Ki-67 at 70%. The findings of our study establish DPC-X4 as a novel mixed-type ampullary cancer cell line, which can serve as a potential experimental model for exploring the pathogenesis of ampullary cancer and the development of therapeutic drugs.
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Affiliation(s)
- Changpeng Chai
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Huan Tang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Jianfeng Yi
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- Department of Surgery, The First School of Clinical Medicine of Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Lu Li
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Cheng Yu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- Department of Anesthesiology, Lanzhou University Second Hospital, Lanzhou, 730000, China
| | - Yuanhui Su
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Long Miao
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Zhenzhen Ye
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- The First School of Clinical Medicine of Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Zhengfeng Wang
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Wei Luo
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Jinjing Hu
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Hui Zhang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- Department of General Surgery, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, China
| | - Xin Miao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730000, China.
| | - Hao Xu
- The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China.
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China.
| | - Wence Zhou
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, China.
- Department of General Surgery, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, China.
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