2. Academic Validation
  3. Sulforaphane suppresses bladder cancer metastasis via blocking actin nucleation-mediated pseudopodia formation

Sulforaphane suppresses bladder cancer metastasis via blocking actin nucleation-mediated pseudopodia formation

  • Cancer Lett. 2024 Jul 30:601:217145. doi: 10.1016/j.canlet.2024.217145.
Lei Huang 1,  Jiaxin Wang 2,  Xinyi Wang 2,  Sicong Zheng 2,  Kailin Liang 2,  Yea Eun Kang 3,  Jae Won Chang 4,  Bon Seok Koo 5,  Lihua Liu 6,  Annamaria Gal 7,  Yujuan Shan 8
Affiliations

Affiliations

  • 1 School of Public Health, Wenzhou Medical University, Wenzhou, 325035, China; Department of Food Science and Nutrition, The Hong Kong Polytechnic University, 999077, Hong Kong Special Administrative Region.
  • 2 School of Public Health, Wenzhou Medical University, Wenzhou, 325035, China.
  • 3 Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon, 35015, Republic of Korea.
  • 4 Department of Otolaryngology-Head and Neck Surgery, Chungnam National University, College of Medicine, Daejeon, 35015, Republic of Korea.
  • 5 Department of Otolaryngology-Head and Neck Surgery, Research Institute for Medical Science, Chungnam National University, School of Medicine, Daejeon, 35015, Republic of Korea.
  • 6 School of Public Health, Wenzhou Medical University, Wenzhou, 325035, China. Electronic address: xjlh92@wmu.edu.cn.
  • 7 School of Applied Sciences, University of Brighton, Brighton, BN2 4GJ, United Kingdom. Electronic address: A.Gal@brighton.ac.uk.
  • 8 School of Public Health, Wenzhou Medical University, Wenzhou, 325035, China; Zhejiang Provincial Key Laboratory of Watershed Sciences and Health, Wenzhou Medical University, Wenzhou, 325035, China. Electronic address: yujuanshan@wmu.edu.cn.
PMID: 39084455 DOI: 10.1016/j.canlet.2024.217145
Abstract

Metastasis is the primary stumbling block to the treatment of bladder Cancer (BC). In order to spread, tumor cells must acquire increased migratory and invasive capacity, which is tightly linked with pseudopodia formation. Here, we unravel the effects of sulforaphane (SFN), an isothiocyanate in Cruciferous vegetables, on the assembly of pseudopodia and BC metastasis, and its molecular mechanism in the process. Our database analysis revealed that in bladder tumor, pseudopodia-associated genes, CTTN, WASL and ACTR2/ARP2 are upregulated. SFN caused lamellipodia to collapse in BC cells by blocking the CTTN-ARP2 axis. SFN inhibited invadopodia formation and cell invasion by reducing WASL in different invasive BC cell lines. The production of ATP, essential for the assembly of pseudopodia, was significantly increased in bladder tumors and strongly inhibited by SFN. Overexpressing Akt1 reversed the downregulation of ATP in SFN-treated bladder Cancer cells and restored filopodia and lamellipodia morphology and function. Bioluminescent imaging showed that SFN suppressed BC metastases to the lung of nude mice while downregulating Cttn and Arp2 expression. Our study thus reveals mechanisms of SFN action in inhibiting pseudopodia formation and highlights potential targeting options for the therapy of metastatic bladder Cancer.

Keywords

ARP2/3 complex; Bladder cancer; Cortactin; Glycolysis; Pseudopodia; WASL.

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