Evidence map›Paper›PMID 33159376›Full record

ArticleCancer science2021

Expression of human leukocyte antigen class I and β2-microglobulin in colorectal cancer and its prognostic impact.

Hee Young Na, Yujun Park, Soo Kyung Nam, Kyu Sang Lee, Heung-Kwon Oh, Duck-Woo Kim, Sung-Bum Kang, Woo Ho Kim, Hye Seung Lee

Open access · goldAbstract read
In one paragraph

Article in Cancer science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.8field-weighted citation impact, top 26% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 20 citations in OpenAlex.

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  3. β2-Microglobulin Induces Mitochondrial Dysfunction Accompanied by Bronchial Epithelial Cell Senescence.International journal of chronic obstructive pulmonary disease · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Hee Young NaDepartment of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-si, Korea.
Yujun ParkDepartment of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-si, Korea.
Soo Kyung NamDepartment of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-si, Korea.
Kyu Sang LeeDepartment of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-si, Korea.
Heung-Kwon OhDepartment of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-si, Korea.
Duck-Woo KimDepartment of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-si, Korea.
Sung-Bum KangDepartment of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-si, Korea.
Woo Ho KimDepartment of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
Hye Seung LeeDepartment of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-1667-7986
Seoul National University Bundang Hospital · KRSeoul National University Hospital · KR

Funding

SNUBH Research Fund 14-2017-002
6 · The paper itself

Abstract

Downregulation of human leukocyte antigen (HLA) class I has been postulated to be a mechanism of adaptive immune escape in various tumors, especially microsatellite instability-high (MSI-H) colorectal cancer (CRC). In this study, we aimed to investigate HLA class I and β2-microglobulin (β2M) expression in MSI-H and microsatellite-stable (MSS) CRCs and determine its prognostic impact. The representative areas from the tumor center (TC) and tumor periphery (TP) from 300 CRCs, including 161 MSI-H and 139 MSS cases, were selected to construct a tissue microarray. Immunohistochemistry (IHC) for HLA A/B/C, β2M, CD3, and CD8 was performed. Reduced HLA A/B/C expression was detected in 113 (70.2%) MSI-H and 54 (38.8%) MSS cases, while reduced β2M expression was observed in 69 (42.9%) MSI-H and 17 (12.2%) MSS cases. Although reduced β2M expression was associated with higher pathological tumor (pT) stage in MSI-H CRC with borderline significance, no association was found between HLA A/B/C and β2M expression and survival. Interestingly, reduced HLA A/B/C expression in MSS was associated with higher stage, and reduced HLA A/B/C and β2M expression was an independent prognostic factor in multivariate analysis. In conclusion, reduced HLA A/B/C and β2M expression was frequently observed in immunotherapy-naive MSI-H CRC, suggesting the possibility of primary resistance to immune checkpoint inhibitor. Interestingly, downregulation of HLA A/B/C and β2M was associated with poor prognosis in MSS cancers. Overall, IHC for HLA A/B/C and β2M might be a feasible predictive or prognostic tool in CRC.

Indexed as

AdolescentAdultAgedAged, 80 and overbeta 2-MicroglobulinColorectal NeoplasmsDown-RegulationFemaleHistocompatibility Antigens Class IHumansImmunohistochemistryMaleMicrosatellite InstabilityMicrosatellite RepeatsMiddle AgedPrognosisbeta 2-MicroglobulinHistocompatibility Antigens Class Icolorectal cancerhuman leukocyte antigen class Iimmunohistochemistrymicrosatellite instabilityβ2-microglobulin

Identifiers

PMID33159376
PMCPMC7780028
OpenAlexW3095745296

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.