CYTOSOL AND SERUM CONCENTRATION OF CYTOKERATIN SUBUNIT-19 FRAGMENT (CYFRA-21-1) IN BREAST-CANCER

  • Authors:
    • T NARITA
    • H FUNAHASHI
    • T IMAI
    • H TAKAGI
    • R KANNAGI
  • View Affiliations

  • Published online on: July 1, 1994     https://doi.org/10.3892/or.1.4.747
  • Pages: 747-750
Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Cytokeratin 19 is a subunit of cytokeratin intermediate filament. CYFRA 21-1 is a new tumor marker using monoclonal antibodies which recognize a fragment of cytokeratin 19. CYFRA 21-1 was measured in cytosol of breast cancer tissues or in sera of patients with breast cancer or benign breast diseases to study the significance of this protein as a tumor marker. The cytosol concentration of CYFRA 21-1 was elevated in cancerous tissue compared to that in adjacent noncancerous tissue, and correlated with the tumor stage or the estrogen receptor status. In the serum, the mean value and positive rate for CYFRA 21-1 (assuming 2.2 ng/ml as the cut-off value) were 0.61 ng/ml (0%) in benign breast diseases, 0.98 ng/ml (6.7%) in stage I/II primary breast cancer, 75.67 ng/ml (60.0%) in stage III/IV primary breast cancer, 45.28 ng/ml (60.0%) in recurrent breast cancer, and 0.64 ng/ml (2.6%) in those with no evidence of recurrence. From the above, we concluded that CYFRA 21-1 could be a tumor marker with high specificity in breast cancer.

Related Articles

Journal Cover

July 1994
Volume 1 Issue 4

Print ISSN: 1021-335X
Online ISSN:1791-2431

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
NARITA T, FUNAHASHI H, IMAI T, TAKAGI H and KANNAGI R: CYTOSOL AND SERUM CONCENTRATION OF CYTOKERATIN SUBUNIT-19 FRAGMENT (CYFRA-21-1) IN BREAST-CANCER. Oncol Rep 1: 747-750, 1994
APA
NARITA, T., FUNAHASHI, H., IMAI, T., TAKAGI, H., & KANNAGI, R. (1994). CYTOSOL AND SERUM CONCENTRATION OF CYTOKERATIN SUBUNIT-19 FRAGMENT (CYFRA-21-1) IN BREAST-CANCER. Oncology Reports, 1, 747-750. https://doi.org/10.3892/or.1.4.747
MLA
NARITA, T., FUNAHASHI, H., IMAI, T., TAKAGI, H., KANNAGI, R."CYTOSOL AND SERUM CONCENTRATION OF CYTOKERATIN SUBUNIT-19 FRAGMENT (CYFRA-21-1) IN BREAST-CANCER". Oncology Reports 1.4 (1994): 747-750.
Chicago
NARITA, T., FUNAHASHI, H., IMAI, T., TAKAGI, H., KANNAGI, R."CYTOSOL AND SERUM CONCENTRATION OF CYTOKERATIN SUBUNIT-19 FRAGMENT (CYFRA-21-1) IN BREAST-CANCER". Oncology Reports 1, no. 4 (1994): 747-750. https://doi.org/10.3892/or.1.4.747