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International Journal of Oncology
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Print ISSN: 1019-6439 Online ISSN: 1791-2423
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Dec 1998 Volume 13 Issue 6

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Journals

International Journal of Molecular Medicine

International Journal of Molecular Medicine

International Journal of Molecular Medicine is an international journal devoted to molecular mechanisms of human disease.

International Journal of Oncology

International Journal of Oncology

International Journal of Oncology is an international journal devoted to oncology research and cancer treatment.

Molecular Medicine Reports

Molecular Medicine Reports

Covers molecular medicine topics such as pharmacology, pathology, genetics, neuroscience, infectious diseases, molecular cardiology, and molecular surgery.

Oncology Reports

Oncology Reports

Oncology Reports is an international journal devoted to fundamental and applied research in Oncology.

Experimental and Therapeutic Medicine

Experimental and Therapeutic Medicine

Experimental and Therapeutic Medicine is an international journal devoted to laboratory and clinical medicine.

Oncology Letters

Oncology Letters

Oncology Letters is an international journal devoted to Experimental and Clinical Oncology.

Biomedical Reports

Biomedical Reports

Explores a wide range of biological and medical fields, including pharmacology, genetics, microbiology, neuroscience, and molecular cardiology.

Molecular and Clinical Oncology

Molecular and Clinical Oncology

International journal addressing all aspects of oncology research, from tumorigenesis and oncogenes to chemotherapy and metastasis.

World Academy of Sciences Journal

World Academy of Sciences Journal

Multidisciplinary open-access journal spanning biochemistry, genetics, neuroscience, environmental health, and synthetic biology.

International Journal of Functional Nutrition

International Journal of Functional Nutrition

Open-access journal combining biochemistry, pharmacology, immunology, and genetics to advance health through functional nutrition.

International Journal of Epigenetics

International Journal of Epigenetics

Publishes open-access research on using epigenetics to advance understanding and treatment of human disease.

Medicine International

Medicine International

An International Open Access Journal Devoted to General Medicine.

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Dec 1998 Volume 13 Issue 6

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Article

Photocytotoxic action of EGF-PVA-Sn(IV)chlorin e6 and EGF-dextran-Sn(IV)chlorin e6 internalizable conjugates on A431 cells.

  • Authors:
    • A Gijsens
    • P De Witte
  • View Affiliations / Copyright

    Affiliations: Laboratorium voor Farmaceutische Biologie en Fytofarmacologie, Faculteit Farmaceutische Wetenschappen, Katholieke Universiteit Leuven, Leuven, Belgium.
  • Pages: 1171-1178
    |
    Published online on: December 1, 1998
       https://doi.org/10.3892/ijo.13.6.1171
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Abstract

Certain tumour cells, such as squamous carcinoma cells, express an increased number of epidermal growth factor (EGF) receptors. The goal of this study was the targeted delivery of Sn(IV)chlorin e6 (SnCe6) to tumours that overexpress the EGF receptor. Therefore EGF was conjugated to the photosensitizer through a carrier, such as dextran (Dex) and polyvinylalcohol (PVA). These conjugates were then compared to a conjugate of the photosensitizer to dextran or PVA alone. The EGF-Dex-SnCe6 conjugates bound specifically to the EGF receptors of the human squamous carcinoma cell line A431 in contrast to EGF-PVA-SnCe6. However, EGF-PVA-SnCe6 exhibited a higher photocytotoxicity (CC50, 2.8 microM) than EGF-Dex-SnCe6 (CC50, >10 microM) and SnCe6 (CC50, >10 microM). PVA-SnCe6 had a similar photocytotoxicity (CC50, 3.5 microM) to EGF-PVA-SnCe6, indicating that PVA, more than EGF, plays a determinant role in the uptake of the conjugates by A431 cells. Together with the improved affinity of EGF-Dex-SnCe6 over EGF-PVA-SnCe6 for the EGF receptor, the former displayed a small increased photocytotoxicity over Dex-SnCe6, reflecting a limited EGF receptor mediated uptake effect. It was concluded that the photodynamic activity of the EGF-conjugate turns out to be strongly dependent on the carrier used.

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Copy and paste a formatted citation
Spandidos Publications style
Gijsens A and De Witte P: Photocytotoxic action of EGF-PVA-Sn(IV)chlorin e6 and EGF-dextran-Sn(IV)chlorin e6 internalizable conjugates on A431 cells.. Int J Oncol 13: 1171-1178, 1998.
APA
Gijsens, A., & De Witte, P. (1998). Photocytotoxic action of EGF-PVA-Sn(IV)chlorin e6 and EGF-dextran-Sn(IV)chlorin e6 internalizable conjugates on A431 cells.. International Journal of Oncology, 13, 1171-1178. https://doi.org/10.3892/ijo.13.6.1171
MLA
Gijsens, A., De Witte, P."Photocytotoxic action of EGF-PVA-Sn(IV)chlorin e6 and EGF-dextran-Sn(IV)chlorin e6 internalizable conjugates on A431 cells.". International Journal of Oncology 13.6 (1998): 1171-1178.
Chicago
Gijsens, A., De Witte, P."Photocytotoxic action of EGF-PVA-Sn(IV)chlorin e6 and EGF-dextran-Sn(IV)chlorin e6 internalizable conjugates on A431 cells.". International Journal of Oncology 13, no. 6 (1998): 1171-1178. https://doi.org/10.3892/ijo.13.6.1171
Copy and paste a formatted citation
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Spandidos Publications style
Gijsens A and De Witte P: Photocytotoxic action of EGF-PVA-Sn(IV)chlorin e6 and EGF-dextran-Sn(IV)chlorin e6 internalizable conjugates on A431 cells.. Int J Oncol 13: 1171-1178, 1998.
APA
Gijsens, A., & De Witte, P. (1998). Photocytotoxic action of EGF-PVA-Sn(IV)chlorin e6 and EGF-dextran-Sn(IV)chlorin e6 internalizable conjugates on A431 cells.. International Journal of Oncology, 13, 1171-1178. https://doi.org/10.3892/ijo.13.6.1171
MLA
Gijsens, A., De Witte, P."Photocytotoxic action of EGF-PVA-Sn(IV)chlorin e6 and EGF-dextran-Sn(IV)chlorin e6 internalizable conjugates on A431 cells.". International Journal of Oncology 13.6 (1998): 1171-1178.
Chicago
Gijsens, A., De Witte, P."Photocytotoxic action of EGF-PVA-Sn(IV)chlorin e6 and EGF-dextran-Sn(IV)chlorin e6 internalizable conjugates on A431 cells.". International Journal of Oncology 13, no. 6 (1998): 1171-1178. https://doi.org/10.3892/ijo.13.6.1171
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