Targeting HIF1α Peri-operatively Increased Post-surgery Survival in a Tongue Cancer Animal Model

Soon-Hyun Ahn, Joo Yeon Choi, Dong Wook Kim, Doh Young Lee, Eun Hui Jeon, Woo Jin Jeong, Jin Ho Paik

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Background: The purpose of the present study was to evaluate the relationship between hypoxia-inducible factor 1 alpha subunit (HIF1α) and tumor initiation in squamous cell carcinoma cell lines and whether targeting HIF1α perioperatively might exert positive effects on survival or recurrence in an animal model. Methods: The expression of HIF1α and tumorigenic potential in nude mice was compared using human head and neck squamous cell carcinoma cell lines (SNU1041, SNU1066, SNU1076, PCI01, PCI13, PCI50). A recurrent tongue cancer model was established by first injecting tumor cells in the lateral tongue and then excising the tongue masses for replanting in the neck. The effect of HIF1α inhibitors was assessed using this animal model. Results: We observed good correlation between tumorigenic potential and HIF1α nuclear expression in the cell lines tested. Furthermore, knockdown of HIF1α inhibited tumor growth in the animal model. After in vitro testing of five HIF1α inhibitors, echinomycin and LAQ824 were selected for the animal study. Pre- and postoperative treatment with echinomycin showed significant improvement in postsurgery survival and recurrence. Conclusions: Our results suggested that adjuvant targeting of HIF1α before and after surgery could be a new targeted therapy strategy for squamous cell carcinoma.

Original languageEnglish
Pages (from-to)3041-3048
Number of pages8
JournalAnnals of Surgical Oncology
Volume22
Issue number9
DOIs
StatePublished - 12 Sep 2015

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Alpha Subunit Hypoxia-Inducible Factor 1
Tongue Neoplasms
Animal Models
Survival
Echinomycin
Tongue
Cell Line
Squamous Cell Carcinoma
Recurrence
Neoplasms
Nude Mice
Neck

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Ahn, Soon-Hyun ; Choi, Joo Yeon ; Kim, Dong Wook ; Lee, Doh Young ; Jeon, Eun Hui ; Jeong, Woo Jin ; Paik, Jin Ho. / Targeting HIF1α Peri-operatively Increased Post-surgery Survival in a Tongue Cancer Animal Model. In: Annals of Surgical Oncology. 2015 ; Vol. 22, No. 9. pp. 3041-3048.
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Targeting HIF1α Peri-operatively Increased Post-surgery Survival in a Tongue Cancer Animal Model. / Ahn, Soon-Hyun; Choi, Joo Yeon; Kim, Dong Wook; Lee, Doh Young; Jeon, Eun Hui; Jeong, Woo Jin; Paik, Jin Ho.

In: Annals of Surgical Oncology, Vol. 22, No. 9, 12.09.2015, p. 3041-3048.

Research output: Contribution to journalArticle

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AU - Choi, Joo Yeon

AU - Kim, Dong Wook

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AU - Jeon, Eun Hui

AU - Jeong, Woo Jin

AU - Paik, Jin Ho

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