OCCPR: A Leader in Cancer Proteomics and Proteogenomics

The mission of the NCI’s Office of Cancer Clinical Proteomics Research (OCCPR) is to improve prevention, early detection, diagnosis, and treatment of cancer by enhancing the understanding of the molecular mechanisms of cancer, advance proteome and proteogenome science and technology development through community resources (data and reagent), and accelerate the translation of molecular findings into the clinic. This is achieved through OCCPR-supported programs such as the Clinical Proteomic Tumor Analysis Consortium (CPTAC), partnerships with Federal agencies, and collaborations with international organizations/institutions.

The International Cancer Proteogenome Consortium

International Cancer Proteogenome Consortium

Learn about ICPC and how the consortium is breaking down silos to advance proteogenomic cancer research worldwide.

Northwestern’s Kelleher Laboratory Develops Top-Down KRAS Isoform Assay to Detect Protein Mutations and Modifications

Mutations in the RAS genes — KRAS, HRAS, and NRAS — have been identified in approximately 30% of all human cancers. While RAS gene family members encode proteins that are pivotal for cytoplasmic cell signaling, RAS oncogenes


CPTAC Develops Fit-for-Purpose Multiplex Immuno-MRM Assay for Profiling the DNA Damage Response Pathway

Ionizing radiation (IR) is a commonly employed cancer treatment that kills cancer cells by damaging their DNA. While the DNA damage response (DDR) pathway may be key to determining tumor responses, radiochemical damage due to IR can target the patients’ healthy dividing cells, leading to the formation of secondary hematologic and solid tumors after DNA-damaging therapy.


ICPC Pilots International Student Training, Paving a Path for Tomorrow’s Cancer Researchers

The Office of Cancer Clinical Proteomics Research at the National Cancer Institute, part of the United States National Institutes of Health, is spearheading the preparationand training of the proteogenomic research workforce on an international scale.


CPTAC Identifies Novel Resistant Mechanism to PI3K Inhibitor in Triple Negative Breast Cancers

Breast cancer is the second most common cancer in women living in the United States, with triple-negative breast cancer (TNBC) accounting for approximately 15% of diagnoses. While chemotherapy is the standard-of-care in TNBC, resistance is common and associated with poor prognosis.


CPTAC Releases Cancer Proteome Confirmatory Ovarian Study Data

A catalogue of molecular aberrations that cause ovarian cancer is critical for developing and deploying diagnostics and therapies that will improve patients’ lives. Because a comprehensive molecular view of cancer is important for ultimately guiding treatment, the National Cancer Institute (NCI) Clinical Proteomic Tumor Analysis Consortium (CPTAC) has released the cancer proteome confirmatory ovarian study data sets.


Best Performers Announced for the NCI-CPTAC DREAM Proteogenomics Computational Challenge

The National Cancer Institute (NCI) Clinical Proteomic Tumor Analysis Consortium (CPTAC) is pleased to announce that teams led by Jaewoo Kang (Korea University), and Yuanfang Guan with Hongyang Li (University of Michigan) as the best performers of the NCI-CPTAC DREAM Proteogenomics Computational Challenge. Over 500 participants from 20 countries registered for the Challenge, which offered $25,000 in cash awards contributed by the NVIDIA Foundation through its Compute the Cure initiative.


CPTAC Releases Cancer Proteome Confirmatory Colon Study Data

The National Cancer Institute (NCI) Clinical Proteomic Tumor Analysis Consortium (CPTAC) announces the release of the cancer proteome confirmatory colon study data. The goal of the study is to analyze the proteomes of approximately 100 confirmatory colon tumor patients, which includes tumor and adjacent normal samples, with liquid chromatography-tandem mass spectrometry (LC-MS/MS) global proteomic and phosphoproteomic profiling.


CPTAC Evaluates Long-Term Reproducibility of Quantitative Proteomics Using Breast Cancer Xenografts

Liquid chromatography tandem-mass spectrometry (LC-MS/MS)- based methods such as isobaric tags for relative and absolute quantification (iTRAQ) and tandem mass tags (TMT) have been shown to provide overall better quantification accuracy and reproducibility over other LC-MS/MS techniques. However, large scale projects like the Clinical Proteomic Tumor Analysis Consortium (CPTAC) require comparisons across many genomically characterized clinical specimens in a single study and often exceed the capability of traditional iTRAQ-based quantification.


CPTAC Develops LinkedOmics – Public Web Portal to Analyze Multi-Omics Data Within and Across Cancer Types

Multi-omics analysis has grown in popularity among biomedical researchers given the comprehensive characterization of thousands of molecular attributes in addition to clinical attributes. Several data portals have been devised to make these datasets directly available to the cancer research community. However, none of the existing data portals allow systematic exploration and interpretation of the complex relationships between the vast amount of clinical and molecular attributes. CPTAC investigator Dr.


P-MartCancer: A New Online Platform to Access CPTAC Datasets and Enable New Analyses

The November 1, 2017 issue of Cancer Research is dedicated to a collection of computational resource papers in genomics, proteomics, animal models, imaging, and clinical subjects for non-bioinformaticists looking to incorporate computing tools into their work. Scientists at Pacific Northwest National Laboratory have developed P-MartCancer, an open, web-based interactive software tool that enables statistical analyses of peptide or protein data generated from mass-spectrometry (MS)-based global proteomics experiments.


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