Volume 74, Issue 1 pp. 13-25
ORIGINAL ARTICLE

Characterization of colorectal cancer by hierarchical clustering analyses of five immune cell markers

Sunao Ito

Sunao Ito

Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan

Search for more papers by this author
Akira Koshino

Akira Koshino

Division of Gastroenterology, Department of Internal Medicine, Aichi Medical University School of Medicine, Nagakute, Japan

Search for more papers by this author
Masayuki Komura

Masayuki Komura

Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan

Search for more papers by this author
Shunsuke Kato

Shunsuke Kato

Division of Gastroenterology, Department of Internal Medicine, Aichi Medical University School of Medicine, Nagakute, Japan

Search for more papers by this author
Takahiro Otani

Takahiro Otani

Department of Public Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan

Search for more papers by this author
Chengbo Wang

Chengbo Wang

Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan

Search for more papers by this author
Akane Ueki

Akane Ueki

Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan

Search for more papers by this author
Hiroki Takahashi

Hiroki Takahashi

Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan

Search for more papers by this author
Masahide Ebi

Masahide Ebi

Division of Gastroenterology, Department of Internal Medicine, Aichi Medical University School of Medicine, Nagakute, Japan

Search for more papers by this author
Naotaka Ogasawara

Naotaka Ogasawara

Division of Gastroenterology, Department of Internal Medicine, Aichi Medical University School of Medicine, Nagakute, Japan

Search for more papers by this author
Toyonori Tsuzuki

Toyonori Tsuzuki

Surgical Pathology, Aichi Medical University School of Medicine, Nagakute, Japan

Search for more papers by this author
Kenji Kasai

Kenji Kasai

Department of Pathology, Aichi Medical University School of Medicine, Nagakute, Japan

Search for more papers by this author
Kunio Kasugai

Kunio Kasugai

Division of Gastroenterology, Department of Internal Medicine, Aichi Medical University School of Medicine, Nagakute, Japan

Search for more papers by this author
Shuji Takiguchi

Shuji Takiguchi

Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan

Search for more papers by this author
Satoru Takahashi

Satoru Takahashi

Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan

Search for more papers by this author
Shingo Inaguma

Corresponding Author

Shingo Inaguma

Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan

Department of Pathology, Aichi Medical University School of Medicine, Nagakute, Japan

Department of Pathology, Nagoya City University East Medical Center, Nagoya, Japan

Correspondence Shingo Inaguma, Department of Pathology, Nagoya City University East Medical Center; Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan.

Email: [email protected]

Search for more papers by this author
First published: 05 December 2023

Abstract

The present study analyzed the expression of five independent immunohistochemical markers, CD4, CD8, CD66b, CD68, and CD163, on immune cells within the colorectal cancer (CRC) tumor microenvironment (TME). Using hierarchical clustering, patients were successfully classified according to significant associations with clinicopathological features and/or survival. Patients with mismatch repair-proficient (pMMR) CRC were categorized into four groups with survival differences (p = 0.0084): CD4Low, CD4High, MΦHigh, and CD8Low. MΦHigh tumors showed significantly higher expression of CD47 (p < 0.0001), a phagocytosis checkpoint molecule. These tumors contained significantly greater numbers of PD-1+ (p < 0.0001), TIM-3+ (p < 0.0001), and SIRPA+ (p < 0.0001) immune cells. Notably, 10% of the patients with pMMR CRC expressed PD-L1 (CD274) on tumor cells with significantly worse survival (p = 0.00064). The Cox proportional hazards model identified MΦ High (hazard ratio [HR] = 2.02, 95%, p = 0.032), CD8Low (HR = 2.45, p = 0.011), and tumor PD-L1 expression (HR = 2.74, p = 0.0061) as potential risk factors. PD-L1–PD-1 and/or CD47–SIRPA axes targeting immune checkpoint therapies might be considered for patients with pMMR CRC according to their tumor cells and tumor immune microenvironment characteristics.

CONFLICT OF INTEREST STATEMENT

The authors have disclosed that they have no relationships with, or financial interest in, any commercial companies pertaining to this article. Toyonori Tsuzuki and Satoru Takahashi are an Editorial Board member of Pathology International and a co-author of this article. To minimize bias, they were excluded from all editorial decision-making related to the acceptance of this article for publication.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.