Tumor Cell Resistance to Complement-Mediated Lysis

Kirschfink, Michael; Fishelson, Zvi

doi:10.1007/1-4020-8056-5_13

The Complement System

DOI: 10.1007/1-4020-8056-5_13

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Tumor Cell Resistance to Complement-Mediated Lysis

Michael Kirschfink

Zvi Fishelson²

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Naturally Occurring Antibodies Directed Against Carbohydrate Tumor Antigens

Schwartz‐Albiez

2012

Advances in Experimental Medicine and Biology

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Healthy persons carry within their pool of circulating antibodies immunoglobulins preferentially of IgM isotype, which are directed against a variety of tumor-associated antigens. In closer scrutiny of their nature, some of these antibodies could be defined as naturally occurring antibodies due to the germline configuration of the variable immunoglobulin region. The majority of these immunoglobulins recognize carbohydrate antigens which can be classified as oncofetal antigens. Many of these IgM antibodies present in the peripheral blood circulation can bind to tumor cells and of these a minor portion are also able to destroy tumor cells by several mechanisms, as for instance complement-mediated cytolysis or apoptosis. It was postulated that anti-carbohydrate antibodies are part of an anti-tumor immune response, while their presence in the peripheral blood of healthy donors is still waiting for a plausible explanation. It may be that recognition of defined epitopes, including carbohydrate sequences, by naturally occurring antibodies constitutes the humoral arm of an anti-tumor immune response as part of the often postulated tumor surveillance. The cytotoxic capacity of these antibodies inspired several research groups and pharmaceutical companies to design novel strategies of immunoglobulin-based anti-tumor immunotherapy.

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Naturally Occurring Antibodies Directed Against Carbohydrate Tumor Antigens

Schwartz‐Albiez

2012

Advances in Experimental Medicine and Biology

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Tumor Cell Resistance to Complement-Mediated Lysis

Cited by 1 publication

References 221 publications

Naturally Occurring Antibodies Directed Against Carbohydrate Tumor Antigens

Naturally Occurring Antibodies Directed Against Carbohydrate Tumor Antigens

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