摘要:
A method of preserving haptenized tumor cells is described. The method employs a freezing medium containing an effective amount of sucrose and human serum albumin in an isotonic buffered saline solution. Cryogenically preserving haptenized cells in such a medium has been found to maintain the integrity of the tumor cells during storage. The haptenized tumor cells also retain cell-associated antigens and haptens, and are as immunogenic, i.e., capable of inducing immunotherapeutic response, as fresh vaccine in a mouse model of metastatic disease. In a specific embodiment, haptenized cells are exposed to a solution of 8% sucrose, 10% human serum albumin in Hank's buffered solution, and then frozen to −80° C. overnight and then stored in a liquid nitrogen freezer. Methods of storing haptenized tumor cells and compositions are also provided.
摘要:
A method of preserving haptenized tumor cells is described. The method employs a freezing medium containing an effective amount of sucrose and human serum albumin in an isotonic buffered saline solution. Cryogenically preserving haptenized cells in such a medium has been found to maintain the integrity of the tumor cells during storage. The haptenized tumor cells also retain cell-associated antigens and haptens, and are as immunogenic, i.e., capable of inducing immunotherapeutic response, as fresh vaccine in a mouse model of metastatic disease. In a specific embodiment, haptenized cells are exposed to a solution of 8% sucrose, 10% human serum albumin in Hank's buffered solution, and then frozen to −80° C. overnight and then stored in a liquid nitrogen freezer. Methods of storing haptenized tumor cells and compositions are also provided.
摘要:
This invention relates to compositions comprising multi-haptenized tumor cells and extracts thereof, methods for preparing the compositions, vaccines comprising such multi-haptenized tumor cells, and methods for treating cancer with such vaccines. In a specific embodiment, melanoma and ovarian adenocarcinoma cells are multi-haptenized, wherein the tumor cells are differentially haptenized either with a dinitrophenyl group coupled to s-amino groups, or with a sulfanilic acid group coupled to aromatic side chains of histidine and tyrosine. A method of SA-haptenization is also provided.
摘要:
This invention relates to compositions comprising multi-haptenized tumor cells and extracts thereof, methods for preparing the compositions, vaccines comprising such multi-haptenized tumor cells, and methods for treating cancer with such vaccines. In a specific embodiment, melanoma and ovarian adenocarcinoma cells are multi-haptenized, wherein the tumor cells are differentially haptenized either with a dinitrophenyl group coupled to ε-amino groups, or with a sulfanilic acid group coupled to aromatic side chains of histidine and tyrosine. A method of SA-haptenization is also provided.
摘要:
The present invention is directed to a treatment for cancer. Compositions and methods of treating cancer are included in the scope of the present invention. The compositions of the present invention include a composition prepared from tumor cells or tumor cell extracts. The methods of the present invention are directed to treating cancer comprising administering a therapeutically effective amount of a composition comprising tumor cells and/or tumor cell extracts.
摘要:
The present invention discloses a method for producing a haptenized vaccine from a tissue biopsy. The method includes obtaining a tissue biopsy, isolating the cells, irradiating the cells, haptenizing the cells, and cryopreserving the cells. The present invention also discloses a method for treating cancer using the vaccines produced by the methods described herein.
摘要:
The present invention is directed to compositions and methods of treating cancer. The compositions of the present invention include a composition prepared from a tumor cell which is hapten modified and syngeneic to the type of tumor to be treated. The composition has the properties, when administered with an adjuvant to a human suffering from a malignant tumor of the same type as said tumor cell, of eliciting T lymphocytes that infiltrate the tumor of said human, of eliciting an inflammatory immune response against the tumor of said human, and of eliciting a delayed-type hypersensitivity response to the tumor of said human. The methods of the present invention are directed to treating cancer comprising administering a therapeutically effective amount of a composition comprising a tumor cell.
摘要:
The present invention is directed to compositions and methods of treating cancer. The compositions of the present invention include a composition prepared from a tumor cell which is hapten modified and syngeneic to the type of tumor to be treated. The composition has the properties, when administered with an adjuvant to a human suffering from a malignant tumor of the same type as said tumor cell, of eliciting T lymphocytes that infiltrate the tumor of said human, of eliciting an inflammatory immune response against the tumor of said human, and of eliciting a delayed-type hypersensitivity response to the tumor of said human. The methods of the present invention are directed to treating cancer comprising administering a therapeutically effective amount of a composition comprising a tumor cell.
摘要:
This invention relates to compositions comprising haptenized tumor cells and extracts thereof, methods for preparing the compositions, vaccines comprising such haptenized tumor cells, and methods for treating cancer with such vaccines. In a specific embodiment, melanoma cells are haptenized with a dinitrophenyl group, and used for treatment of melanoma patients having metastatic disease. Preferably, patients are given a first vaccine dose containing haptenized cells to “prime” the immune system. Subsequently, patients are injected with an immunomodulatory compound such as cyclophosphamide. In a preferred embodiment, an appropriate time period after the “priming” vaccine dose, additional vaccine doses containing a mixture of haptenized cells and an adjuvant are administered. The described treatment plan is more effective for eliciting favorable anti-tumor immune responses.
摘要:
A method of preserving haptenized tumor cells is described. The method employs a freezing medium containing an effective amount of sucrose and human serum albumin in an isotonic buffered saline solution. Cryogenically preserving haptenized cells in such a medium has been found to maintain the integrity of the tumor cells during storage. The haptenized tumor cells also retain cell-associated antigens and haptens, and are as immunogenic, i.e., capable of inducing immunotherapeutic response, as fresh vaccine in a mouse model of metastatic disease. In a specific embodiment, haptenized cells are exposed to a solution of 8% sucrose, 10% human serum albumin in Hank's buffered solution, and then frozen to −80° C. overnight and then stored in a liquid nitrogen freezer. Methods of storing haptenized tumor cells and compositions are also provided.