Role of integrin αvβ3 in the early phase of liver metastasis: PET and IVM analyses

Hironori Kikkawa, Masako Kaihou, Natsuko Horaguchi, Takayuki Uchida, Hidetoshi Imafuku, Ayano Takiguchi, Yukako Yamazaki, Chieko Koike, Ryoko Kuruto, Takeharu Kakiuchi, Hideo Tsukada, Yoshikazu Takada, Nariaki Matsuura, Naoto Oku

研究成果: 雜誌貢獻文章

44 引文 (Scopus)

摘要

To clarify the function of integrin αvβ3 in the early stage of liver metastasis, we investigated the interactions of metastatic cells with their target organ under the actual blood flow by using positron emission tomography (PET). The cells used were CHO-K1 cells and their transfectants bearing human integrin αvβ3 cDNA (αvβ3-CHO-K1 cells). The liver accumulation of αvβ3-CHO-K1 cells was significantly higher than that of CHO-K1 cells after injection via the portal vein, whereas no significant difference was observed in the lung accumulation after tail vein injection, suggesting a specific interaction of αvβ3-CHO-K1 cells with the hepatic sinusoids. Furthermore, to clarify the precise location of each cell in the liver, i.e., to determine whether individual cells were intravascularly localized or had extravasated, we performed intravital fluorescence microscopy (IVM) on the liver by using stable transfectants bearing the green fluorescent protein (GFP) gene, namely, GFP-CHO-K1 and GFP-αvβ3-CHO-K1 cells. Both types of cells remained in the hepatic blood vessels 1 h after injection via the portal vein. On the other hand, expression of integrin αvβ3 promoted the cells to reach the extravascular region after 24 h. These results suggest the possibility that the specific accumulation of αvβ3-CHO-K1 cells in the liver is followed by migration of the cells into the extravascular region. Interestingly, the adhesion of the two types of cells to hepatic sinusoidal endothelial cells in vitro did not correspond to in vivo accumulation of these cells. Therefore, integrin αvβ3 may function to promote extravasation of integrin αvβ3-expressing tumor cells in liver through a process possibly mediated by vitronectin produced by this organ.

原文英語
頁(從 - 到)717-725
頁數9
期刊Clinical and Experimental Metastasis
19
發行號8
DOIs
出版狀態已發佈 - 2002
對外發佈Yes

指紋

CHO Cells
Fluorescence Microscopy
Integrins
Positron-Emission Tomography
Neoplasm Metastasis
Liver
Green Fluorescent Proteins
Portal Vein
Injections
Vitronectin
Intravital Microscopy
Cell Adhesion
Cell Communication
Cell Movement
Blood Vessels
Tail
Hepatocytes
Veins
Endothelial Cells
Complementary DNA

ASJC Scopus subject areas

  • Cancer Research

引用此文

Kikkawa, H., Kaihou, M., Horaguchi, N., Uchida, T., Imafuku, H., Takiguchi, A., ... Oku, N. (2002). Role of integrin αvβ3 in the early phase of liver metastasis: PET and IVM analyses. Clinical and Experimental Metastasis, 19(8), 717-725. https://doi.org/10.1023/A:1021356019563

Role of integrin αvβ3 in the early phase of liver metastasis : PET and IVM analyses. / Kikkawa, Hironori; Kaihou, Masako; Horaguchi, Natsuko; Uchida, Takayuki; Imafuku, Hidetoshi; Takiguchi, Ayano; Yamazaki, Yukako; Koike, Chieko; Kuruto, Ryoko; Kakiuchi, Takeharu; Tsukada, Hideo; Takada, Yoshikazu; Matsuura, Nariaki; Oku, Naoto.

於: Clinical and Experimental Metastasis, 卷 19, 編號 8, 2002, p. 717-725.

研究成果: 雜誌貢獻文章

Kikkawa, H, Kaihou, M, Horaguchi, N, Uchida, T, Imafuku, H, Takiguchi, A, Yamazaki, Y, Koike, C, Kuruto, R, Kakiuchi, T, Tsukada, H, Takada, Y, Matsuura, N & Oku, N 2002, 'Role of integrin αvβ3 in the early phase of liver metastasis: PET and IVM analyses', Clinical and Experimental Metastasis, 卷 19, 編號 8, 頁 717-725. https://doi.org/10.1023/A:1021356019563
Kikkawa, Hironori ; Kaihou, Masako ; Horaguchi, Natsuko ; Uchida, Takayuki ; Imafuku, Hidetoshi ; Takiguchi, Ayano ; Yamazaki, Yukako ; Koike, Chieko ; Kuruto, Ryoko ; Kakiuchi, Takeharu ; Tsukada, Hideo ; Takada, Yoshikazu ; Matsuura, Nariaki ; Oku, Naoto. / Role of integrin αvβ3 in the early phase of liver metastasis : PET and IVM analyses. 於: Clinical and Experimental Metastasis. 2002 ; 卷 19, 編號 8. 頁 717-725.
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abstract = "To clarify the function of integrin αvβ3 in the early stage of liver metastasis, we investigated the interactions of metastatic cells with their target organ under the actual blood flow by using positron emission tomography (PET). The cells used were CHO-K1 cells and their transfectants bearing human integrin αvβ3 cDNA (αvβ3-CHO-K1 cells). The liver accumulation of αvβ3-CHO-K1 cells was significantly higher than that of CHO-K1 cells after injection via the portal vein, whereas no significant difference was observed in the lung accumulation after tail vein injection, suggesting a specific interaction of αvβ3-CHO-K1 cells with the hepatic sinusoids. Furthermore, to clarify the precise location of each cell in the liver, i.e., to determine whether individual cells were intravascularly localized or had extravasated, we performed intravital fluorescence microscopy (IVM) on the liver by using stable transfectants bearing the green fluorescent protein (GFP) gene, namely, GFP-CHO-K1 and GFP-αvβ3-CHO-K1 cells. Both types of cells remained in the hepatic blood vessels 1 h after injection via the portal vein. On the other hand, expression of integrin αvβ3 promoted the cells to reach the extravascular region after 24 h. These results suggest the possibility that the specific accumulation of αvβ3-CHO-K1 cells in the liver is followed by migration of the cells into the extravascular region. Interestingly, the adhesion of the two types of cells to hepatic sinusoidal endothelial cells in vitro did not correspond to in vivo accumulation of these cells. Therefore, integrin αvβ3 may function to promote extravasation of integrin αvβ3-expressing tumor cells in liver through a process possibly mediated by vitronectin produced by this organ.",
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T1 - Role of integrin αvβ3 in the early phase of liver metastasis

T2 - PET and IVM analyses

AU - Kikkawa, Hironori

AU - Kaihou, Masako

AU - Horaguchi, Natsuko

AU - Uchida, Takayuki

AU - Imafuku, Hidetoshi

AU - Takiguchi, Ayano

AU - Yamazaki, Yukako

AU - Koike, Chieko

AU - Kuruto, Ryoko

AU - Kakiuchi, Takeharu

AU - Tsukada, Hideo

AU - Takada, Yoshikazu

AU - Matsuura, Nariaki

AU - Oku, Naoto

PY - 2002

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N2 - To clarify the function of integrin αvβ3 in the early stage of liver metastasis, we investigated the interactions of metastatic cells with their target organ under the actual blood flow by using positron emission tomography (PET). The cells used were CHO-K1 cells and their transfectants bearing human integrin αvβ3 cDNA (αvβ3-CHO-K1 cells). The liver accumulation of αvβ3-CHO-K1 cells was significantly higher than that of CHO-K1 cells after injection via the portal vein, whereas no significant difference was observed in the lung accumulation after tail vein injection, suggesting a specific interaction of αvβ3-CHO-K1 cells with the hepatic sinusoids. Furthermore, to clarify the precise location of each cell in the liver, i.e., to determine whether individual cells were intravascularly localized or had extravasated, we performed intravital fluorescence microscopy (IVM) on the liver by using stable transfectants bearing the green fluorescent protein (GFP) gene, namely, GFP-CHO-K1 and GFP-αvβ3-CHO-K1 cells. Both types of cells remained in the hepatic blood vessels 1 h after injection via the portal vein. On the other hand, expression of integrin αvβ3 promoted the cells to reach the extravascular region after 24 h. These results suggest the possibility that the specific accumulation of αvβ3-CHO-K1 cells in the liver is followed by migration of the cells into the extravascular region. Interestingly, the adhesion of the two types of cells to hepatic sinusoidal endothelial cells in vitro did not correspond to in vivo accumulation of these cells. Therefore, integrin αvβ3 may function to promote extravasation of integrin αvβ3-expressing tumor cells in liver through a process possibly mediated by vitronectin produced by this organ.

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