Abstract: The present disclosure concerns a method for the identification of the presence or absence of cancer cells in a biological sample, more particularly a method for the identification of the susceptibility or resistance to a treatment with CD20 agonists of cancer cells in a biological sample, the methods including determining the level of expression of the gene Cyclon in the cells and comparing the level of expression to the level of expression in a non-cancer cell, wherein a level of expression higher than the level of expression in a non-cancer cell is an indication of the presence of a cancer cell, more particularly an indication of cancer cells with a resistance to treatment with antagonists. Kits for the determination of a level of expression of the Cyclon gene in a biological sample, a method for the identification of Cyclon expression antagonists, and methods for treating patients are provided.

Abstract: At least one element for the implementation of a prognosis method, preferably in vitro, of the survival rate of a patient afflicted by a lung cancer, the lung cancer being previously classified as a lung tumour selected from squamous cell carcinoma (SQC), adenocarcinoma (ADK), large cell neuro-endocrine tumours (LCNE) and basaloid tumours (BAS).

Abstract: At least 13 genes chosen among a set of 28 genes for carrying out a method for identifying at least 66% of patients of those having a survival rate of at most about 20% at 30 months, among a population of patients afflicted by lung cancer having an estimated survival rate of at least 30% at 30 months based on the diagnosis of the lung cancer according to histopathological criteria.

Abstract: Method of using one element chosen among a nucleic acid molecule, a fragment of the nucleic acid molecule and a variant of the nucleic acid molecule for the in vitro or ex vivo diagnosis of any type of somatic or ovarian cancers, wherein at least one of any of the above described elements is abnormally expressed in cancer cells of at least one type of the somatic or ovarian cancers, and wherein each type of somatic or ovarian cancer cells abnormally expresses at least one of the above described elements.