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Special expression of Thy-1 in different malignant tumors

  • Original Article
  • Published:
Chinese Journal of Cancer Research

Abstract

Objective

To investigate the expression status of Thy-1 in malignant cancerous tissues and to evaluate whether Thy-1 could be a potential tumor marker.

Methods

Immunohistochemistry method was used to examine Thy-1 expressions in different malignant tumor tissues. We used a monoclonal antibody specific for Thy-1 and the indirect Catalysis Signal Amplification method. With the help of tissue microarray (TMA), we examined expression the status of Thy-1 in 1451 different types of malignant tumor tissues, 144 normal tissues and benign lesions.

Results

All the malignant tumor cells were grouped as one group (malignant cells group) and normal or benign tumor tissue cells as another group (normal cells group). Among the entire 1451 malignant cases group, positive Thy-1 expression with diffuse and strong staining was observed in 734 (734/1451; 50.59%) cases. In the benign cases only 6 chronic cervicitis cases showed weak staining for Thy-1. All the normal tissue showed negative staining. One-way ANVOA analysis showed F value between these two groups was 147.229 (P<0.0001).

Conclusion

A significantly stronger expression of Thy-1 in malignant tumors was observed. Special overexpression of Thy-1 in malignant tumors suggests that Thy-1 might be a potential novel tumor marker with respect to cancer progression. Chronic cervicitis has some relationship with cervix carcinoma. When it develops into atypical hyperplasia, it will be a precancerous lesion for cervix carcinoma. In this research we found weak staining for Thy-1 in chronic cervicitis lesion, so Thy-1 may play a crucial role in carcinogenesis for cervix carcinoma. The research about the relationship between Thy-1 expressions in cancer cells and in precancerous lesion will provide some clues to understand the mechanism for carcinogenesis process.

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Authors and Affiliations

  1. Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic Surgery, Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, 100142, China

    Jin-feng Chen, Nan Wu, Li-jian Zhang & Yue Yang

  2. Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, 100142, China

    Ai-ping Lu

Authors
  1. Jin-feng Chen
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  2. Ai-ping Lu
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  3. Nan Wu
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  4. Li-jian Zhang
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  5. Yue Yang
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Corresponding author

Correspondence to Yue Yang.

Additional information

This work was supported by a grant from the Foundation of Health Bureau of Beijing (No.2003-049)

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Chen, Jf., Lu, Ap., Wu, N. et al. Special expression of Thy-1 in different malignant tumors. Chin. J. Cancer Res. 22, 73–79 (2010). https://doi.org/10.1007/s11670-010-0073-0

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  • DOI: https://doi.org/10.1007/s11670-010-0073-0

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