Hybritech Incorporated

Diadexus, Inc.

Other

Baylor College of Medicine

Robert L Wolfert

Harry G Rittenhouse

Stephen D Mikolajczyk

Kevin Slawin

Tang Jang Wang

Nam Kim

Laura Corral

Glenn Ronald Pilkington

Iris Simon

Mohammad Saeed Saedi

Abhay Kumar

Charis Lawrenson

Craig S Hill

Donald J Tindall

Charles Y F Young

Xiaozhu Duan

This invention relates to a method for assessing risk of prostate cancer. Specifically, it relates to utilizing both Pro108 and Prostate Specific Antigen (PSA) in combination to determine the risk of prostate cancer. In addition, it is directed to a method for assessing risk of ovarian, colon, breast or stomach cancer utilizing Pro108 or specific antibodies to Pro108. The invention provides isolated anti-prostate, ovarian, colon, breast or stomach cancer antigen (Pro108) antibodies that bind to Pro108 on a mammalian cell in vivo. The invention also encompasses compositions comprising an anti-Pro108 antibody and a carrier. These compositions can be provided in an article of manufacture or a kit. Another aspect of the invention is an isolated nucleic acid encoding an anti-Pro108 antibody, as well as an expression vector comprising the isolated nucleic acid. Also provided are cells that produce the anti-Pro108 antibodies. The invention encompasses a method of producing the anti-Pro108 antibodies. Other aspects of the invention are a method of killing an Pro108-expressing cancer cell, comprising contacting Pro108 present in the ECM with an anti-Pro108 antibody and a method of alleviating or treating an Pro108-expressing cancer in a mammal, comprising administering a therapeutically effective amount of the anti-Pro108 antibody to the mammal.

Pro108 antibody compositions and methods of use and use of Pro108 to assess cancer risk

Inactive precursor forms of PSA (pPSA) have been identified to exist in serum and tissues of patients with prostate cancer. Antibodies specific for pPSA are provided. Methods for detecting inactive precursors of PSA in human physiological fluid and tissues are also provided, as well as diagnostic kits and methods useful in the diagnosis and management of prostate cancer.

Forms of prostate specific antigens and methods for their detection

This invention relates to a method for assessing risk of prostate and/or ovarian cancer. Specifically, in one embodiment it relates to utilizing both Cln101 and Prostate Specific Antigen (PSA) in combination to determine the risk of prostate cancer. In an alternative embodiment, the invention is relates to utilizing Cln101 alone or in combination with CA125 to determine the risk of ovarian cancer. The invention further provides isolated anti-prostate or ovarian cancer antigen (Cln101) antibodies that bind to Cln101 in vivo. The invention also encompasses compositions comprising an anti-Cln101 antibody and a carrier. These compositions can be provided in an article of manufacture or a kit. Another aspect of the invention is an isolated nucleic acid encoding an anti-Cln101 antibody, as well as an expression vector comprising the isolated nucleic acid. Also provided are cells that produce the anti-Cln101 antibodies. The invention encompasses a method of producing the anti-Cln10I antibodies. Other aspects of the invention are a method of killing an Cln101-expressing cancer cell, comprising contacting the cancer cell with an anti-Cln101 antibody and a method of alleviating or treating an Cln101-expressing cancer in a mammal, comprising administering a therapeutically effective amount of the anti-Cln101 antibody to the mammal.

Cln101 antibody compositions and methods of use alone and in combination with prostate specific antigen and other cancer markers

A substantially pure and isolated novel form of prostate specific antigen (PSA) is provided. The novel form of PSA of the present invention comprises at least one clip at Lys 182 of the amino acid sequence of a mature form of PSA. Preferably, the novel form of PSA additionally comprises one or more clips at a location selected from a group consisting of Ile 1, Lys 145, and Lys 146. More preferably, the form of PSA contains at least two clips at Lys 145 and Lys 182 of the amino acid sequence of a mature form of PSA. The novel forms of PSA exist at an elevated level in patients suspected of having benign prostatic hyperplasia (BPH) and therefore may be used as a serum mark or an immunohistological marker to help distinguish BPH from prostate cancer. Antibodies recognizing the novel forms of PSA and immunoassays that detect and determine the novel forms of PSA of the present invention in a sample are also provided. Further provided are a kit and a method for detecting the novel forms of PSA for aiding in the differentiation of prostate cancer from BPH.

Forms of prostate specific antigen (PSA) specific for benign prostatic hyperplasia (BPH) and methods of using such

Prostate cancer is detected by determining the presence of hK2 RNA in a physiological sample.

Method for detection of micrometastatic prostate cancer

A method of distinguishing prostate cancer from benign prostatic hyperplasia (BPH) is provided. The mathematical combination or ratio of proPSA and BPSA serum or tissue markers may be used for distinguishing benign prostatic hyperplasia (BPH) from prostate cancer. It is the discovery of the present invention that BPSA is preferentially elevated in transition zone prostate tissue whereas pPSA is elevated in the peripheral zone of prostate tissue. A kit for aiding in distinguishing BPH from prostate cancer is also provided.

Forms of free prostate-specific antigen (PSA) and their association with prostate tissues from prostate peripheral zone and transition zone

Monoclonal antibodies highly specific for human bone alkaline phosphatase, especially in the presence of human liver alkaline phosphatase, and their use in assays for human bone alkaline phosphatase are disclosed. A kit using the antibodies in an assay for human bone alkaline phosphatase is also disclosed.

Growing community of inventors

Palo Alto, CA, United States of America

Robert L Wolfert