摘要:
The present invention provides a novel method to distinguish between HCG β type I and type II gene expression using specific antibody. The specific recognition of HCGβ encoded by type II genes and expressed by trophoblastic and neoplastic cells might improve the clinical usefulness of assays aimed at either diagnosing tumors or screening Down's syndrome. The present invention also provides a diagnostic kit for determining the amount of HCGβ type II in a biological sample. The present invention additionally provides process of preparation and screening hybridoma capable of specifically recognizing HCGβ type II and recombinant antibody thereof. Finally, the present invention provides methods for detecting trophoblast or non-trophoblast malignancy in a sample.
摘要:
The present invention is directed to the use of the expression level of the pro-EPIL gene as a biomarker for the diagnosing of testicular cancer, particularly a testicular germ cell tumor. The invention also relates to an in vitro method for detecting and/or classifying a testicular cancer in a subject comprising a step of determining the expression level of the gene encoding the pro-EPIL peptide in a biological, particularly in combination with the determination of the beta subunit HCGβ and the human alpha-fetoprotein AFP. The invention is also directed to a kit or solid support comprising nucleic acids or antibodies capable of determining the presence or the expression level of these three biological markers.
摘要:
The invention relates to an immunometric assay for a multivalent antigen in a sample which comprises forming a complex of the antigen together with multiple immobilized monoclonal antibodies against different epitopes of the antigen and with a detectably labeled soluble monoclonal antibody which is identical to one of the multiple immobilized antibodies. The labeled antibody associated with the complex is separated from the remaining soluble antibody and the detectably labeled antibody associated with the complex or unassociated with the complex is detected. Any one of the multiple immobilized monoclonal antibodies shows, by itself, substantially less binding towards the antigen in the immunometric assay, when used with itself or another monocolonal antibody in soluble labeled form, than when used with the multiple immobilized antibodies in combination.
摘要:
The subject of the present invention is a peptide structure comprising at leastthe sequence 106-116 of a .beta.-CG or a .beta.-LHa sequence of at least 5 amino acids containing at least one lysine residue.These structures may be used for the preparation of vaccines intended to control fertility.
摘要:
A highly sensitive and specific monoclonal-immuno-radiometric assay (M-IRMA) for hCG, using monoclonal antibodies (Mabs) directed against a 37-amino acid synthetic polypeptide analogous to the carboxyl terminus (CTP) of beta-hCG. Accordingly, in one embodiment, a method is described for the determination of human chorionic gonadotrThe present invention was made utilizing funds of the United States Government. The U.S. government is therefore granted a royalty-free, non-exclusive, world wide, paid-up license in this invention.
摘要:
A process for detecting malignant transformation of cells involves detecting the overexpression of the products of the &bgr;3, &bgr;5, &bgr;8 and &bgr;9 genes, which encode the hCG&bgr; subunit, relative to their expression in nonmalignant cells. A kit for diagnosing an hCG- or an hCG fragment-secreting cancer includes an assembly of polypeptides covering at least a part of the primary sequence of hCG. The use of a polypeptide corresponding to at least one portion of the primary sequence of hCG for producing a composition useful in hCG- or hCG fragment-secreting cancer immunotherapy is also disclosed.
摘要:
The subject of the invention is a new protein called EPIL or placentin, its analogs ing EPIL/placentin-type activity, obtained by deletion and/or substitution. The tion also concerns a DNA molecule coding for a EPIL/placentin-type polypeptide. It ly concerns a pharmaceutical composition containing EPIL/placentin or a /placentin analog.
摘要:
A process for detecting malignant transformation of cells involves detecting the overexpression of the products of the &bgr;3, &bgr;5, &bgr;8 and &bgr;9 genes, which encode the hCG&bgr; subunit, relative to their expression in nonmalignant cells. A kit for diagnosing an hCG- or an hCG fragment-secreting cancer includes an assembly of polypeptides covering at least a part of the primary sequence of hCG. The use of a polypeptide corresponding to at least one portion of the primary sequence of hCG for producing a composition useful in hCG- or hCG fragment-secreting cancer immunotherapy is also disclosed.
摘要:
The subject of the invention is a new protein called EPIL or placentin, its analogs showing EPIL/placentin-type activity, obtained by deletion and/or substitution. The invention also concerns a DNA molecule coding for a EPIL/placentin-type polypeptide. It finally concerns a pharmaceutical composition containing EPIL/placentin or a EPIL/placentin analog.
摘要:
The present invention provides a new protein called EPIL or placentin, and analogs thereof having EPIL/placentin-type activity, obtained by deletion and/or substitution. The present invention also provides a DNA molecule coding for a EPIL/placentin-type polypeptide. The present invention further provides a pharmaceutical composition comprising EPIL/placentin or an EPIL/placentin analog.