Association between aberrant dynein cytoplasmic 1 light intermediate chain 1 expression levels, mucins and chemosensitivity in colorectal cancer

  • Authors:
    • Chun‑Chao Chang
    • Kuo‑Ching Chao
    • Chi‑Jung Huang
    • Chih‑Sheng Hung
    • Yen‑Chieh Wang
  • View Affiliations

  • Published online on: April 22, 2020     https://doi.org/10.3892/mmr.2020.11086
  • Pages: 185-192
  • Copyright: © Chang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Dynein transport along the cytoskeletal microtubules towards the minus end is essential for cell division, cell migration and other basic cellular functions. Dynein cytoplasmic 1 light intermediate chain 1 (DYNC1LI1) has been previously associated with pancreatic ductal adenocarcinoma, hepatocellular carcinoma and prostate cancer. Cytoskeletal structures are involved in the regulation of the mucosal barrier integrity. Thus, improving our understanding of the molecular mechanisms that regulate the mucosal barrier is critical for cancer management and treatment. The present study aimed to investigate DYNC1LI1 expression in colorectal cancer (CRC) tissues. The American Joint Committee on Cancer Stage II CRC cell line LS 174T was used to determine the association between the cellular expression levels of DYNC1LI1 and different types of mucin (MUC) by reverse transcription‑quantitative PCR. The role of DYNC1LI1 in cell chemosensitivity and proliferation was also evaluated in the presence of the DNA analog 5‑fluorouracil (5‑FU) or the platinum‑based drug, oxaliplatin by the MTT assay. LS 174T cells with decreased expression levels of DYNC1LI1 were discovered to be more sensitive to 5‑FU compared with LS 174T cells with endogenous DYNC1LI1 expression levels. Moreover, LS 174T cells transfected with short hairpin RNA targeting DYNC1LI1 were associated with low MUC1 and high MUC2, MUC4 and MUC5AC expression levels. Notably, the CRC cells with low MUC1 expression levels and high expression levels of the other MUCs (MUC2, MU4 and MUC5AC) were shown to benefit from 5‑FU treatment. In conclusion, the findings of the present study have suggested that DYNC1LI1 expression may be significantly associated with MUC expression levels and may be used to predict the chemotherapeutic efficiency. However, additional functional studies and clinical reports are required for an improved understanding of the significance of these molecular interactions in tumorigenesis.
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July 2020
Volume 22 Issue 1

Print ISSN: 1791-2997
Online ISSN:1791-3004

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APA
Chang, C., Chao, K., Huang, C., Hung, C., & Wang, Y. (2020). Association between aberrant dynein cytoplasmic 1 light intermediate chain 1 expression levels, mucins and chemosensitivity in colorectal cancer. Molecular Medicine Reports, 22, 185-192. https://doi.org/10.3892/mmr.2020.11086
MLA
Chang, C., Chao, K., Huang, C., Hung, C., Wang, Y."Association between aberrant dynein cytoplasmic 1 light intermediate chain 1 expression levels, mucins and chemosensitivity in colorectal cancer". Molecular Medicine Reports 22.1 (2020): 185-192.
Chicago
Chang, C., Chao, K., Huang, C., Hung, C., Wang, Y."Association between aberrant dynein cytoplasmic 1 light intermediate chain 1 expression levels, mucins and chemosensitivity in colorectal cancer". Molecular Medicine Reports 22, no. 1 (2020): 185-192. https://doi.org/10.3892/mmr.2020.11086