Int J Biol Sci 2019; 15(8):1610-1617. doi:10.7150/ijbs.32518 This issue

Research Paper

Specifically blocking the fatty acid synthesis to inhibit the malignant phenotype of bladder cancer

Aolin Li1,2*, Lin Yao3*, Yuan Fang4*, Kang Yang5*, Wei Jiang1✉, Weiren Huang1✉, Zhiming Cai1✉

1. Department of Urology, Shenzhen Second People′s Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen 518000, Guangdong, China.
2. Shantou University Medical College, Shantou 515041, China
3. Department of Urology, Peking University First Hospital, Institute of Urology, Peking University, National Urological Cancer Center, Beijing 100034, China
4. Shenzhen Key Laboratory of Fertility Regulation, Center of Assisted Reproduction and Embryology, The University of HongKong, Shenzhen Hospital, Shenzhen, China
5. University of South China, Hengyang 421000, Hunan Province, China
*Equal contributors

This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY-NC) license ( See for full terms and conditions.
Li A, Yao L, Fang Y, Yang K, Jiang W, Huang W, Cai Z. Specifically blocking the fatty acid synthesis to inhibit the malignant phenotype of bladder cancer. Int J Biol Sci 2019; 15(8):1610-1617. doi:10.7150/ijbs.32518. Available from

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Graphic abstract

Fatty acid synthesis is regulated by transcription factors SREBPs and their escort protein SCAP. Malignant cells become dependent on de novo lipogenesis, which sustains rapid proliferation and resistance to cellular stress. Increasing evidence showed SCAP participated in various disease processes including malignant tumors, which regulate transcription factors SREBPs Tumorigenesis is associated with incur glucose consumption and lipogenesis. In our study, we discovered that SCAP was upregulated in BC tissues. SCAP knockdown by CRISPR-Cas9 inhibit the cell proliferation, invasion and migration. Additionally, the cell apoptosis was facilitated. What's more, downregulation of SCAP could weaken the cancer-promoting effects of estrogen on BC. Our study revealed that SCAP played a carcinogenic role in BC and lipogenesis might promote the initiation of BC by inducing SCAP. Thus, Targeting SCAP may provide a promising means of treating BC and a new perspective for the tumorigenesis of bladder cancer.

Keywords: fatty acid synthesis, tumorigenesis, cell proliferation, lipogenesis