Skip to content. | Skip to navigation

National Cancer Institute U.S. National Institutes of Health www.cancer.gov

Navigation

Personal tools

You are here: Home / Biomarkers / ANXA1

ANXA1

Basics

Aliases:
This biomarker is also known as:
  • Chromobindin-9,
  • Lipocortin I,
  • Annexin-1,
  • Annexin I,
  • p35,
  • ANX1,
  • LPC1,
  • Phospholipase A2 inhibitory protein,
  • Annexin 1,
  • Annexin A1,
  • Calpactin II,

View in BioMuta

Description…

Annexin 1 belongs to a family of calcium-dependent phospholipid binding proteins which are preferentially located on the cytosolic face of the plasma membrane. Annexin I protein has an apparent relative molecular mass of 40 kDa, with phospholipase A2 inhibitory activity. Since phospholipase A2 is required for the biosynthesis of the potent mediators of inflammation, prostaglandins and leukotrienes, annexin I may have potential anti-inflammatory activity. Annexin 1 also promotes membrane fusion and is involved in exocytosis. It seems to bind from two to four calcium ions with high affinity.

Attributes

QA State: Accepted
Type: Protein
Short Name:
HGNC Name: ANXA1

Organs

The following organs have data associated with this biomarker…

Breast

Attributes

Phase: One
QA State: Curated

Overview

No additional data available.

Performance Comment

Ninety biomarkers were measured using a series of multiplexed immunoassays and results analyzed by the EDRN data management center splitting the cases and controls into training and validation sets, excluding subjects with DCIS or atypical hyperplasia from the training phase. We found little evidence that any of these markers can discriminate women with invasive cancer from those with benign breast conditions.

Supporting Study Data

The following studies/protocols provide evidence supporting ANXA1 indications for the Breast…

No supporting studies or protocols found.

Organ-Specific Protocols

No organ-specific protocols defined.

Organ-Specific Publications

No organ-specific publications defined.

Organ-Specific Resources

No organ-specific resources defined.

Lung

Attributes

Phase: Three
QA State: Under Review

Overview

Annexin 1, previously found to be the target of autoantibodies in newly diagnosed subjects with lung cancer, is also associated with autoantibodies in sera collected at the pre-symptomatic stage. These findings suggest potential utility of an approach to diagnosis of lung cancer before onset of symptoms that includes screening for autoantibodies to defined antigens, including Annexin 1.

Performance Comment

The findings of this study suggest potential utility of an approach to diagnosis of lung cancer before onset of symptoms that includes screening for autoantibodies to defined antigens. Investigation of Annexin 1 is ongoing.

Supporting Study Data

The following studies/protocols provide evidence supporting ANXA1 indications for the Lung…

Validation of Protein Markers for Lung Cancer Using CARET Sera and Proteomics Techniques

1.1 To validate the finding from pilot studies with CARET sera of autoantibodies to annexins I and II and PGP9.5 as potential biomarkers for lung cancers before the clinical diagnosis, evaluating sensitivity and specificity by time before diagnosis, treatment arm, gender, histologic type, and smoking status. 1.2 To determine whether a pattern of occurrence of autoantibodies in lung cancer sera may be diagnostic of lung cancer that is not dependent on the occurrence of any particular autoantibody. 1.3 To compare the findings for individual biomarker candidates and combinations of biomarker candidates in participants who were current smokers versus former smokers.

View more about this study
Biomarker Characteristics Summary
Notes Sensitivity Specificity Prevalence NPV PPV Specific Assay Type
Proteins from human lung adenocarcinoma cell line A549 lysates were subjected to extensive fractionation. The resulting 1,824 fractions were spotted in duplicate on nitrocellulose-coated slides. The microarrays produced were used in a blinded validation study to determine whether annexin I, PGP9.5, and 14-3-3 theta antigens previously found to be targets of autoantibodies in newly diagnosed patients with lung cancer are associated with autoantibodies in sera collected at the presymptomatic stage and to determine whether additional antigens may be identified in prediagnostic sera. Individual sera collected from 85 patients within 1 year before a diagnosis of lung cancer and 85 matched controls from the Carotene and Retinol Efficacy Trial (CARET) cohort were hybridized to individual microarrays. Sam Hanash laboratory. 51.0 82.0 N/A N/A N/A
Decision Rule

PMID: 18794547

Additional Study-Specific Protocols
Study-Specific Publications
Study-Specific Resources

Organ-Specific Protocols

No organ-specific protocols defined.

Organ-Specific Publications

No organ-specific publications defined.

Organ-Specific Resources

No organ-specific resources defined.

New Funding Opportunity: Biomarker Development Laboratories for the Early Detection Network: Applications Due May 23

Update: Pre-application webinar information now available.

The National Cancer Institute's Division of Cancer Prevention has released a new funding opportunity to solicit organ-specific applications for Biomarker Developmental Laboratories (BDLs), one of the four scientific units of the recently funded Early Detection Research Network (EDRN). The EDRN is a national infrastructure funded to discover, develop, and validate biomarkers for risk assessment, detection, and molecular diagnosis and prognosis of early cancer. BDLs are responsible for the discovery, development, characterization, and testing of new, or the refinement of existing, biomarkers and biomarker assays for risk assessment, detection, and molecular diagnosis and prognosis of cancers.

The existing BDLs are primarily focused on ovary and gastrointestinal cancers. The proposed BDLs (to be supported under this funding opportunity) should be focused on one or more of the following cancers: breast, prostate and other genitourinary organs, or lung. In addition, cancers with rapidly rising incidence rates, e.g., endometrial, hepatocellular, kidney, thyroid, oropharyngeal cancers, and/or cancers with unique etiology, e.g., mesothelioma, will be considered.

The newly funded units of the Early Detection Research Network will be announced later in April. Successful applicants have already been notified. Those researchers who were not successful during the last round of applications are encouraged to apply to this opportunity.