» Articles » PMID: 30648121

Total HLA Class I Antigen Loss with the Downregulation of Antigen-Processing Machinery Components in Two Newly Established Sarcomatoid Hepatocellular Carcinoma Cell Lines

Overview
Journal J Immunol Res
Publisher Wiley
Date 2019 Jan 17
PMID 30648121
Citations 4
Authors
Affiliations
Soon will be listed here.
Abstract

Limited information is currently available concerning HLA class I antigen abnormalities in sarcomatoid hepatocellular carcinoma (sHCC). Here, we have analyzed the growth characteristics and HLA class I antigen status of four sHCC cell lines (sHCC29, sHCC63, sHCC74, and SAR-HCV); the first three were newly established in this study. Among the four, sHCC29 showed the highest growth rate and tumorigenicity in NOD-SCID mice. Unlike sHCC74 and SAR-HCV, both sHCC29 and sHCC63 had no detectable surface HLA class I antigen expression, alongside undetected intracellular -microglobulin ( m) and marked HLA class I heavy chain and selective antigen-processing machinery (APM) component downregulation. The loss of m in sHCC29 and sHCC63 was caused by a >49 kb deletion across the locus, while their downregulation of APM components was transcriptional, reversible by IFN- only in several components. m was also undetected in the primary HCC lesions of the patients involved, indicating its relevance. We report for the first time HLA class I antigen loss with underlying gene deficiency and APM defects in 50% (2 of 4) of the sHCC cell lines tested. These findings may have implications for a proper design of T cell immunotherapy for the treatment of sHCC patients.

Citing Articles

IFDlong: an isoform and fusion detector for accurate annotation and quantification of long-read RNA-seq data.

Wang W, Li Y, Ko S, Feng N, Zhang M, Liu J bioRxiv. 2024; .

PMID: 38798496 PMC: 11118288. DOI: 10.1101/2024.05.11.593690.


Integrative HLA typing of tumor and adjacent normal tissue can reveal insights into the tumor immune response.

Sverchkova A, Burkholz S, Rubsamen R, Stratford R, Clancy T BMC Med Genomics. 2024; 17(1):37.

PMID: 38281021 PMC: 10821267. DOI: 10.1186/s12920-024-01808-8.


Impaired intratumoral dendritic cell function and potential predictive value of dendritic cell markers for metastasis in malignant salivary gland tumors.

Gama-Cuellar A, Diaz K, Calleja M, Saavedra G, Ramirez-Amador V, Corro J Med Oral Patol Oral Cir Bucal. 2023; 29(2):e273-e279.

PMID: 37992142 PMC: 10945878. DOI: 10.4317/medoral.26248.


In vivo therapeutic effects of affinity-improved-TCR engineered T-cells on HBV-related hepatocellular carcinoma.

Liu Q, Tian Y, Li Y, Zhang W, Cai W, Liu Y J Immunother Cancer. 2020; 8(2).

PMID: 33323464 PMC: 7745518. DOI: 10.1136/jitc-2020-001748.

References
1.
Desai S, Wang X, Noronha E, Zhou Q, Rebmann V, Grosse-Wilde H . Structural relatedness of distinct determinants recognized by monoclonal antibody TP25.99 on beta 2-microglobulin-associated and beta 2-microglobulin-free HLA class I heavy chains. J Immunol. 2000; 165(6):3275-83. DOI: 10.4049/jimmunol.165.6.3275. View

2.
Parkin D, Bray F, Ferlay J, Pisani P . Estimating the world cancer burden: Globocan 2000. Int J Cancer. 2001; 94(2):153-6. DOI: 10.1002/ijc.1440. View

3.
Carter P . Improving the efficacy of antibody-based cancer therapies. Nat Rev Cancer. 2002; 1(2):118-29. DOI: 10.1038/35101072. View

4.
Tai D, Chen C, Chang T, Chen S, Liao L, Kuo C . Eight-year nationwide survival analysis in relatives of patients with hepatocellular carcinoma: role of viral infection. J Gastroenterol Hepatol. 2002; 17(6):682-9. DOI: 10.1046/j.1440-1746.2002.02747.x. View

5.
Huang J, Cai M, Wei D . HLA class I expression in primary hepatocellular carcinoma. World J Gastroenterol. 2002; 8(4):654-7. PMC: 4656315. DOI: 10.3748/wjg.v8.i4.654. View