Open Access

Comparative analysis of CEACAM1 expression in thin melanomas with and without regression

  • Authors:
    • Luciana Nichita
    • Sabina Zurac
    • Alexandra Bastian
    • Patricia Stinga
    • Roxana Nedelcu
    • Alice Brinzea
    • Gabriela Turcu
    • Daniela Ion
    • Lucia Jilaveanu
    • Liana Sticlaru
    • Cristiana Popp
    • Mirela Cioplea
  • View Affiliations

  • Published online on: February 25, 2019     https://doi.org/10.3892/ol.2019.10067
  • Pages: 4149-4154
  • Copyright: © Nichita et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) is a key molecule in several intracellular and intercellular signaling pathways, with multiple functional and structural roles. CEACAM1 expression in melanoma is often described in the invading part of the tumor and has been associated with increased melanoma cells invasion and migration. We studied CEACAM1 expression in regressing versus non-regressing thin melanomas, knowing that phenomenon of regression represents a valuable model for understanding tumor immunity. In melanoma, through homophilic interactions, CEACAM1 inhibits natural killer cell activity, inhibits effector functions of tumor infiltrating lymphocytes, such as cytotoxicity and interferon-γ release. We present a retrospective study including 53 consecutive cases of thin melanoma, 21 with regression and 32 without regression. Comparative analysis of CEACAM1 expression in regressed and non-regressed areas from melanomas with regression and in non-regressed melanomas was performed. We used three different clones of CEACAM1: AA 1-428, extracellular domain, rabbit; AA 1-428, mouse, clone 8B6E2F4; and AA 1-468, full length, mouse, clone 2F6. All three clones had similar reactivity. We identified membrane positivity of tumor cells in non-regressed melanomas and in non‑regressed areas in melanomas with regression. Remaining tumor cells in regressed areas were mostly negative for CEACAM1. In non-regressed lesions, there was a stronger positivity of CEACAM1 in the deep invasive front. In thin melanomas, CEACAM1 overexpression is related with invasiveness, suggesting that CEACAM1-positive melanomas are more aggressive. Also, in areas of regression tumor cells lose CEACAM1 expression, probably correlated with the presence of natural killer cells.
View Figures
View References

Related Articles

Journal Cover

May-2019
Volume 17 Issue 5

Print ISSN: 1792-1074
Online ISSN:1792-1082

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Nichita L, Zurac S, Bastian A, Stinga P, Nedelcu R, Brinzea A, Turcu G, Ion D, Jilaveanu L, Sticlaru L, Sticlaru L, et al: Comparative analysis of CEACAM1 expression in thin melanomas with and without regression. Oncol Lett 17: 4149-4154, 2019
APA
Nichita, L., Zurac, S., Bastian, A., Stinga, P., Nedelcu, R., Brinzea, A. ... Cioplea, M. (2019). Comparative analysis of CEACAM1 expression in thin melanomas with and without regression. Oncology Letters, 17, 4149-4154. https://doi.org/10.3892/ol.2019.10067
MLA
Nichita, L., Zurac, S., Bastian, A., Stinga, P., Nedelcu, R., Brinzea, A., Turcu, G., Ion, D., Jilaveanu, L., Sticlaru, L., Popp, C., Cioplea, M."Comparative analysis of CEACAM1 expression in thin melanomas with and without regression". Oncology Letters 17.5 (2019): 4149-4154.
Chicago
Nichita, L., Zurac, S., Bastian, A., Stinga, P., Nedelcu, R., Brinzea, A., Turcu, G., Ion, D., Jilaveanu, L., Sticlaru, L., Popp, C., Cioplea, M."Comparative analysis of CEACAM1 expression in thin melanomas with and without regression". Oncology Letters 17, no. 5 (2019): 4149-4154. https://doi.org/10.3892/ol.2019.10067