A method of inducing an anti-tumor response against a lung...

A - Human Necessities – 61 – K

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A61K 39/00 (2006.01) A61K 35/00 (2006.01)

Patent

CA 2327339

The present invention is directed to a method of inducing an anti-tumor response against a metastatic melanoma by administering an effective amount of a composition comprising at least one of the following: (i) a hapten-modified syngeneic mammalian melanoma cell substantially in a no growth phase, (ii) a hapten-modified melanoma cell membrane, (iii) a peptide isolated from said hapten-modified melanoma cell or membrane and (iv) a T cell capable of mediating an anti-tumor response such as for example regression of a melanoma. The metastatic melanoma treated according to the present invention includes metastatic melanoma which is limited to the lung and is preferably a small lung metastasis. The invention is further directed to a melanoma cell, an isolated melanoma cell membrane, a peptide isolated from such cell or membrane and a T cell having the property of inducing an anti-tumor response, a composition containing such cell, membrane, peptide, T cell or combination thereof, as well as the methods for theirisolation and preparation.

L'invention concerne un procédé d'induction d'une réponse antitumorale contre un mélanome métastatique, qui consiste à administrer une dose efficace d'une composition comprenant au moins un des éléments suivants : (I) une cellule de mélanome syngénique de mammifère, modifiée par l'haptène, sensiblement dans une phase de non croissance ; (ii) une membrance de cellule de mélanome modifiée par l'haptène ; (iii) un peptide isolé de ladite cellule ou membrane modifiée par l'haptène et (iv) un lymphocyte capable d'induire une réponse anti-tumorale, comme par exemple la régression d'un mélanome. Le mélanome traité selon l'invention peut être, entre autres, le mélanome métastatique qui est limité au poumon et est,de préférence une petite métastase pulmonaire. L'invention se rapporte encore à une cellule de mélanome, à une membrande de cellule de mélanome isolée, à un peptide isolé de ladite cellule ou membrane et à un lymphocyte T ayant la propriété d'induire une réponse antitumorale, à une composition contenant la cellule, la membrane, le peptide, le lymphocyte T de l'invention ou des combinaisons de ceux-ci, ainsi que des procédés d'isolation ou de préparation de ceux-ci.

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