H. Lee Moffitt Cancer Center and Research Institute, Inc.

Other

Johns Hopkins University

The United States of America, As Represented by the Secretary, Department of Health and Human Services

University of South Florida

The United States of America As Represented by the Department of Health

Ciphergen Biosystems, Inc.

Melvyn S Tockman

James L Mulshine

Tatyana A Zhukov

Dansheng Song

John K Frost

Roy A Johanson

Prabodh K Gupta

The subject invention concerns methods for the detection, diagnosis, and/or prognosis of cancer by analyzing centrosomal features. In one embodiment, a method includes receiving an image of one or more cells; selecting a region of interest in one cell; segmenting the region of interest to delineate at least one centrosomal; extracting one or more features from the segmented image; and analyzing the extracted features to diagnose cancer. In another embodiment, the progression of cancer can be predicted through analysis and classification of the extracted features. In one embodiment, the method can be performed by a quantitative cancer analysis system including a diagnosis module and/or a prognosis module. In one embodiment, the method can be performed using an image processing system.

Methods and apparatus for diagnosis and/or prognosis of cancer

The present invention is a method for early detection of cancer including the steps of identifying tissue from asymptomatic individuals, gathering a substantially homogenous cell population from the tissue by laser capture microdissection (LCM), analyzing the cell population with mass spectrometry and identifying predetermined peaks in the mass spectrometry associated with an overexpression of proteins in premalignant and malignant cells.

Protein profiling for premalignant tissue

The present invention is a purified and isolated epithelial protein, peptide and variants thereof whose increased presence in an epithelial cell is indicative of precancer. One epithelial protein which is an early detection marker for lung cancer was purified from two human lung cancer cell lines, NCI-H720 and NCI-H157. Using a six-step procedure, the epithelial protein was purified using a Western blot detection system under both non-reducing and reducing conditions. Purification steps included anion exchange chromatography, preparative isoelectric focusing, polymer-based C HPLC and analytic C HPLC. After an approximately 25,000 fold purification the immunostaining protein was >90% pure as judged by Coomassie blue staining after reducing SDS-PAGE. The primary epithelial protein shares some sequence homology with the heterogeneous nuclear ribonucleoprotein (hnRNP) A2. A minor co-purifying epithelial protein shares some sequence homology with the splice variant hnRNP-B1. Molecular analysis of primary normal bronchial epithelial cell cultures demonstrated low levels of epithelial protein expression, consistent with immunohistochemical staining of clinical samples, and an increased level of expression in most lung cancer cells. The epithelial protein is a marker of epithelial transformation in lung, breast, bone, ovary, prostate, kidney, melanoma and myeloma and may be casual in the process of carcinogenesis. Methods are provided for monitoring the expression of the epithelial protein, peptides and variants using molecular and immunological techniques as a screen for precancer and cancer in mammals.

Methods for diagnosing cancer or precancer based upon hnRNP protein expression

The present invention is a purified and isolated epithelial protein, peptide and variants thereof whose increased presence in an epithelial cell is at indicative of precancer. One epithelial protein which is an early detection marked for lung cancer was purified from two human lung cancer cell lines, NCI-H720 and NCI-H157. Using a six-step procedure, the epithelial protein was purified using a Western blot detection system under both non-reducing and reducing conditions. Purification steps included anion exchange chromatography, preparative isoelectric focusing, polymer-based C.sub.18 HPLC and analytic C.sub.4 HPLC. After an approximately 25,000 fold purification the immunostaining protein was &gt;90% pure as judged by coomassie blue staining after reducing SDS-PAGE. The primary epithelial protein share some sequence homology with the heterogeneous nuclear ribonucleoprotein (hnRNP) A2. A minor co-purifying epithelial protein shares some sequence homology with the splice variant hnRNP-B1. Molecular analysis of primary normal bronchial epithelial cell cultures demonstrated a low level the epithelial protein expression, consistent with immunohistochemical staining of clinical samples, and an increased level of expression in most lung cancer cells. The epithelial protein is a marker of epithelial transformation in lung, breast, bone, ovary, prostate, kidney, melanoma and myeloma and may be casual in the process of carcinogenesis. Methods are provided for monitoring the expression of the epithelial protein, peptides and variants using molecular and immunological techniques as a screen for precancer and cancer in mammals.

Epithelial protein and DNA thereof for use in early cancer detection

The present invention relates to a method for early detection of lung cancer. The method comprises obtaining samples from the body, especially respiratory tract material including sputum or bronchial fluid or any other pulmonary tissue or thoracic cells or regional lymph nodes, and assaying the samples with monoclonal antibodies for the presence of antigens whose enhanced presence correlates with the development of lung cancer. The method of the present invention permits identification of lung cancer up to two years prior to the development of clinical lung cancer, and thus enables early treatment of the lung cancer.

Growing community of inventors

Tampa, FL, United States of America

Melvyn S Tockman