Related Experiment Video
Updated: May 20, 2026

Multi-photon Imaging of Tumor Cell Invasion in an Orthotopic Mouse Model of Oral Squamous Cell Carcinoma
Published on: July 25, 2011
Autophagic action of new targeting agents in head and neck oncology
1Department of Microbiology and Immunology, Tohoku University Graduate School of Dentistry, Sendai, Japan. riki@dent.tohoku.ac.jp
Abstract:
The survival rates of patients with squamous cell carcinoma of the head and neck (HNSCC) have not improved significantly despite multi-modality therapy, including surgery, radiation therapy, and chemotherapy. Recently, molecular targeted agents have shown significant improvement in clinical outcomes; for example, in chronic myelogeneous leukemia with imatinib, breast cancer with trastuzumab, colon cancer with bevacizumab and cetuximab, and renal cell cancer with sorafenib and sunitinib. In HNSCC, the epidermal growth factor receptor antibody cetuximab has shown promising results in combination with radiation. Targeted agents including cetuximab induce stresses to activate prosurvival autophagy. Combining autophagy inhibitors with agents that induce autophagy as a prosurvival response may therefore increase their therapeutic efficacy. Whether autophagy contributes to the prosurvival response or to the antitumor effect of chemotherapeutic drugs is largely unknown. This review will discuss the possible role of autophagy as a novel target for anticancer therapy agents in HNSCC.
Insights
Head and neck squamous cell carcinoma (HNSCC) survival remains poor. Targeting autophagy, a cellular process, may enhance current cancer therapies by combining autophagy inhibitors with agents that induce this response.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Survival rates for head and neck squamous cell carcinoma (HNSCC) have stagnated despite aggressive multi-modality treatments.
- Recent advances in molecular targeted agents show promise in various cancers, suggesting potential for HNSCC.
Purpose of the Study:
- To review the potential role of autophagy as a novel therapeutic target in HNSCC.
- To explore how combining autophagy inhibitors with existing therapies might improve treatment efficacy.
Main Methods:
- Literature review of studies on targeted agents and autophagy in cancer.
- Analysis of the dual role of autophagy (prosurvival vs. antitumor) in HNSCC treatment.
Main Results:
- Epidermal growth factor receptor (EGFR) inhibitors like cetuximab show promise in HNSCC, often inducing autophagy.
- Targeted agents can induce cellular stress, activating prosurvival autophagy.
Conclusions:
- Autophagy's role in HNSCC treatment is complex and not fully understood.
- Modulating autophagy, potentially by combining inhibitors with inducers, represents a promising strategy for novel HNSCC therapies.
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
Tumor Immunotherapy
Delivery Pathways to the Lysosome
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
Autophagic Cell Death
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and pro-apoptotic...

