Anti-KL-6/MUC1 monoclonal antibody reverses resistance to trastuzumab-mediated antibody-dependent cell-mediated cytotoxicity by capping MUC1.
Antibodies, Monoclonal
/ pharmacology
Antibody-Dependent Cell Cytotoxicity
/ drug effects
Antineoplastic Agents, Immunological
/ pharmacology
Breast Neoplasms
/ drug therapy
Cell Death
/ drug effects
Cell Line, Tumor
Drug Resistance, Neoplasm
/ drug effects
Female
Humans
Mucin-1
/ immunology
Signal Transduction
/ drug effects
Trastuzumab
/ pharmacology
Antibody-dependent cell-mediated cytotoxicity
Capping
KL-6
MUC1
Trastuzumab
Journal
Cancer letters
ISSN: 1872-7980
Titre abrégé: Cancer Lett
Pays: Ireland
ID NLM: 7600053
Informations de publication
Date de publication:
01 02 2019
01 02 2019
Historique:
received:
08
01
2018
revised:
14
10
2018
accepted:
25
10
2018
pubmed:
6
11
2018
medline:
5
11
2019
entrez:
4
11
2018
Statut:
ppublish
Résumé
Polymorphic epithelial mucin (MUC1) is generally overexpressed on the surface of most adenocarcinomas including breast cancer. MUC1 is associated with chemotherapeutic resistance and immune evasion of cancer cells; however, the association between MUC1 and trastuzumab-mediated antibody-dependent cell-mediated cytotoxicity (ADCC) remains unclear. In this study, using six breast cancer cell lines with differing expression levels and MUC1 distribution, the present results show that cells with MUC1 overexpression and uniform surface distribution were resistant to trastuzumab-mediated ADCC. Importantly, trastuzumab resistance was reversed upon siRNA-mediated MUC1 knockdown and by using anti-KL-6/MUC1 monoclonal antibody (mAb). Additionally, we visually confirmed that anti-KL-6/MUC1 mAb induced capping of MUC1 molecules on the cell surface, resulting the in death of these cells. These results suggest that not only the quantity but also the cell-surface distribution of MUC1 affects the sensitivity of breast cancer cells to trastuzumab-mediated ADCC.
Identifiants
pubmed: 30389434
pii: S0304-3835(18)30652-9
doi: 10.1016/j.canlet.2018.10.037
pii:
doi:
Substances chimiques
Antibodies, Monoclonal
0
Antineoplastic Agents, Immunological
0
MUC1 protein, human
0
Mucin-1
0
Trastuzumab
P188ANX8CK
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
31-39Informations de copyright
Copyright © 2018 Elsevier B.V. All rights reserved.