Upregulation of Fatty Acid Transporters is Associated With Tumor Progression in Non-Muscle-Invasive Bladder Cancer

Hoiseon Jeong, Hwa Eun Oh, Hyesun Kim, Ju-Han Lee, Eung Seok Lee, Young Sik Kim, Jung-Woo Choi

Research output: Contribution to journalArticlepeer-review

Abstract

As patients with non-muscle-invasive bladder cancer (NMIBC) show a high degree of heterogeneity in tumor recurrence or progression, many clinicians demand a detailed risk stratification. Although modified fatty acid metabolism in cancer cells is reported to reflect malignant phenotypes such as metastasis, the impact of fatty acid transporters on NMIBC has never been investigated. This study examined the clinicopathologic implications of fatty acid transporters such as fatty acid transport protein 4 (FATP4), cluster of differentiation 36/fatty acid translocase (CD36/FAT), and long chain acyl CoA synthetase 1 (ACSL1) in 286 NMIBC cases. This study revealed that FATP4, CD36, and ACSL1 were overexpressed in 123 (43.0%), 43 (15.0%), and 35 (12.2%) NMIBC cases, respectively. High FATP4 in tumor cells was associated with high grade (p = 0.004) and high stage (p = 0.039). High CD36 was related to high grade (p < 0.001), high stage (p = 0.002), and non-papillary growth type (p = 0.004). High ACSL1 showed an association with high grade (p < 0.001), high stage (p = 0.01), non-papillary growth type (p = 0.002), and metastasis (p = 0.033). High FATP4 was an independent factor predicting short overall survival (OS) (hazard ratio = 3.32; 95% confidence interval, 1.07–10.31; p = 0.038). In conclusion, upregulation of FATP4, CD36, and ACSL1 might promote the NMIBC progression and could be exploited in clinical risk stratification and targeted therapy.

Original languageEnglish
Article number594705
JournalPathology and Oncology Research
Volume27
DOIs
Publication statusPublished - 2021 Mar 30
Externally publishedYes

Keywords

  • ACSL1
  • CD36
  • FATP4
  • Fatty acid
  • bladder cancer

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Oncology
  • Cancer Research

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