B7-h3 as a biomarker for diagnosing the progression and...

C - Chemistry – Metallurgy – 12 – Q

Patent

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C12Q 1/68 (2006.01) A61K 47/48 (2006.01) A61P 35/00 (2006.01) G01N 33/574 (2006.01)

Patent

CA 2729593

B7H3 is a ligand member of the immunoregulatory family of proteins on immune cells. In one embodiment, a method for diagnosing the progression of cancer with a high propensity of primary tumor metastasis to the lymph node or distant site is provided. Such a method may comprise obtaining a cancer tissue sample from a cancer patient, determining an expression level of B7-H3 present in the tissue sample, and diagnosing the progression of the cancer having a high propensity of primary tumor metastasis to the lymph node or distant site based upon the expression level, wherein an increased expression level correlates with an increased probability of having regional lymph nodes or organ site that are positive for metastases.

B7-H3 est un ligand, membre de la famille immuno-régulatrice des protéines présentes sur les cellules immunitaires. Dans un mode de réalisation, l'invention porte sur un procédé pour diagnostiquer la progression d'un cancer avec une propension élevée de métastase de tumeur primaire sur le ganglion lymphatique ou sur un site distant. Un tel procédé peut comprendre l'obtention d'un échantillon de tissu cancéreux provenant d'un patient atteint du cancer, la détermination d'un taux d'expression du B7-H3 présent dans l'échantillon de tissu, et le diagnostic de la progression du cancer ayant une propension élevée de métastase de tumeur primaire sur le ganglion lymphatique ou un site distant sur la base du taux d'expression, un taux d'expression accru se corrélant à une probabilité accrue d'avoir des ganglions lymphatiques régionaux ou un site d'organe qui sont positifs pour des métastases.

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