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Related Experiment Videos

[Chemosensitivity test for head and neck cancers]

W Xu1, M Liang

  • 1Shandong Provincial Hospital, Jinan.

Zhonghua Er Bi Yan Hou Ke Za Zhi
|January 1, 1996
PubMed
Summary
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The MTT assay accurately assesses head and neck cancer chemosensitivity in fresh specimens. Pingyangmycin (PYM) and Homoharringtonine (HHA) showed the highest sensitivity, suggesting their use in personalized chemotherapy regimens.

Area of Science:

  • Oncology
  • Cancer Research
  • Pharmacology

Background:

  • Head and neck cancers exhibit variable responses to chemotherapy.
  • Accurate chemosensitivity testing is crucial for personalized treatment selection.
  • The MTT assay offers a potential method for evaluating drug sensitivity in fresh tumor specimens.

Purpose of the Study:

  • To evaluate the practicability and accuracy of the MTT assay for head and neck cancer chemosensitivity testing.
  • To compare chemosensitivities across different cancer subtypes and patient characteristics.
  • To guide the selection of optimal anticancer drugs for individual chemotherapy.

Main Methods:

  • MTT assay performed on 27 fresh head and neck cancer specimens.
  • Testing against eight anticancer drugs: Methotroxate (MTX), Mitomycin C (MMC), fluorouracil (5-Fu), Carboplatin (CBDCA), Pingyangmycin (PYM), Homoharringtonine (HHA), Etoposid (VP16), and Vincristine (VCR).

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  • Comparison of chemosensitivities based on primary tumor site, pathologic type, histological differentiation, DNA ploidy, and estrogen receptor status.

    • Main Results:

    • The MTT assay demonstrated a high success rate (92.6%) and accuracy.
    • A distinct sensitivity sequence was observed: PYM > HHA > MTX > CBDCA > MMC > 5-Fu > VCR > VP16.
    • Squamous cell carcinoma showed significantly higher chemosensitivity than adenoid cystic carcinoma.
    • Aneuploid tumors were significantly more sensitive than diploid tumors.
    • No significant chemosensitivity differences were found based on primary site, histological differentiation, or estrogen receptor status.

    Conclusions:

    • The MTT assay is a practical and accurate method for assessing head and neck cancer chemosensitivity.
    • Homoharringtonine (HHA) and Pingyangmycin (PYM) are recommended as first-line agents for head and neck cancer chemotherapy.
    • Tumor ploidy and histologic type influence chemosensitivity, providing valuable information for personalized treatment strategies.