Pancreatic stellate cells reorganize matrix components and lead pancreatic cancer invasion via the function of Endo180

Kazuhiro Koikawa, Kenoki Ohuchida, Shin Takesue, Yohei Ando, Shin Kibe, Hiromichi Nakayama, Sho Endo, Toshiya Abe, Takashi Okumura, Kohei Horioka, Masafumi Sada, Chika Iwamoto, Taiki Moriyama, Kohei Nakata, Yoshihiro Miyasaka, Riichi Ohuchida, Tatsuya Manabe, Takao Ohtsuka, Eishi Nagai, Kazuhiro MizumotoMakoto Hashizume, Masafumi Nakamura

研究成果: ジャーナルへの寄稿記事

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Specific cell populations leading the local invasion of cancer are called “leading cells”. However, the underlying mechanisms are unclear. Here, we identified leading cells in pancreatic cancer and determined how these cells lead and promote cancer cell invasion in the extracellular matrix (ECM). Using three-dimensional matrix remodeling assay, we found that pancreatic stellate cells (PSCs) frequently invaded the collagen matrix with pancreatic cancer cells (PCCs), which invaded behind the invading PSCs. In addition, invading PSCs changed the alignment of collagen fibers, resulting in ECM remodeling and an increase in the parallel fibers along the direction of invading PSCs. Endo180 expression was higher in PSCs than in PCCs, Endo180 knockdown in PSCs attenuated the invasive abilities of PSCs and co-cultured PCCs, and decreased the expression level of phosphorylated myosin light chain 2 (MLC2). In mouse models, Endo180-knockdown PSCs suppressed tumor growth and changes in collagen fiber orientation in co-transplantation with PCCs. Our findings suggest that PSCs lead the local invasion of PCCs by physically remodeling the ECM, possibly via the function of Endo180, which reconstructs the actin cell skeleton by phosphorylation of MLC2.

元の言語英語
ページ(範囲)143-154
ページ数12
ジャーナルCancer Letters
412
DOI
出版物ステータス出版済み - 1 1 2018

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All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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