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Updated: Jun 2, 2026

In Vitro Establishment of a Genetically Engineered Murine Head and Neck Cancer Cell Line using an Adeno-Associated Virus-Cas9 System
Published on: January 9, 2020
Gene therapy for head and neck squamous cell carcinoma using KITENIN (KAI1 COOH-Terminal Interacting
Joon Kyoo Lee1, Dong-Hoon Lee, Eun Gene Sun
1Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School, Hwasun Hospital, Hwasun-eup, Hwasun 519-763, Korea. joonkyoo@chonnam.ac.kr
Purpose:
KAI1 COOH-terminal interacting tetraspanin (KITENIN) has been found to act as a promoter of metastasis in murine models of colon cancer and squamous cell carcinoma (SCC). The suppression of tumor progression and metastasis of established colon cancer in mice was observed after intravenous delivery of small interfering RNA (siRNA) targeting KITENIN. The purpose of this study was to investigate the efficacy of gene therapy targeting KITENIN in human head and neck SCC.
Materials And Methods:
SNU-1041, a well-established human hypopharyngeal SCC cell line, was used. KITENIN expression in SNU-1041 was measured by Western blot analysis. The cells were prepared, maintained in culture dishes with media, and divided into two groups: the si-KITENIN group and the scrambled group (control). The siRNA targeting KITENIN (si-KITENIN) and scrambled DNA were transfected into the SNU-1041 cells in each group. The effect of gene therapy was compared by in vitro experiments to evaluate invasion, migration, and proliferation.
Results:
KITENIN was strongly expressed in the SNU-1041 cells, and the number of invaded cells was reduced more in the si-KITENIN group than in the scrambled group (p<0.001). The speed for the narrowing gap, made through adherent cells, was lower in the si-KITENIN group (p<0.001), and the number of viable proliferating cells was reduced in the si-KITENIN group compared to the scrambled group (p<0.001, the third day). KITENIN protein expression was no longer identified in the si-KITENIN group.
Conclusion:
Gene therapy using an anti-KITENIN strategy might be effective for head and neck squamous carcinoma.
Insights
Gene therapy targeting KAI1 COOH-terminal interacting tetraspanin (KITENIN) effectively suppressed head and neck squamous cell carcinoma (SCC) progression. This approach reduced tumor cell invasion, migration, and proliferation in vitro.
Area of Science:
- Oncology
- Molecular Biology
- Gene Therapy
Background:
- KAI1 COOH-terminal interacting tetraspanin (KITENIN) promotes metastasis in colon cancer and squamous cell carcinoma (SCC) models.
- Previous studies showed KITENIN suppression via small interfering RNA (siRNA) reduced tumor progression in colon cancer.
- Head and neck SCC represents a significant clinical challenge with unmet therapeutic needs.
Purpose of the Study:
- To evaluate the efficacy of gene therapy targeting KITENIN in human head and neck SCC.
- To investigate the impact of KITENIN suppression on SCC cell invasion, migration, and proliferation.
Main Methods:
- Utilized the SNU-1041 human hypopharyngeal SCC cell line.
- Measured KITENIN expression via Western blot analysis.
- Administered siRNA targeting KITENIN (si-KITENIN) or scrambled control via transfection in vitro.
- Assessed invasion, migration, and proliferation differences between groups.
Main Results:
- KITENIN was highly expressed in SNU-1041 cells.
- si-KITENIN treatment significantly reduced cell invasion (p<0.001).
- Migration speed was significantly decreased in the si-KITENIN group (p<0.001).
- Cell proliferation was significantly reduced by day three in the si-KITENIN group (p<0.001).
- KITENIN protein expression was undetectable post-si-KITENIN transfection.
Conclusions:
- Gene therapy targeting KITENIN demonstrates significant potential for treating head and neck SCC.
- Suppression of KITENIN effectively inhibits key hallmarks of cancer progression in vitro.
- An anti-KITENIN strategy warrants further investigation for head and neck SCC treatment.
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