Evidence map›Paper›PMID 42083033›Full record

ArticleInfectious agents and cancer2026

Absence of chlamydial infection in ocular adnexal MALT lymphoma based on next-generation sequencing.

Yoshihiro Yakushijin, Kazuhiro Horiba, Masanori Hashino, Shintaro Yamanaka, Shinji Hasebe, Shoichiro Yamamoto, Tomomi Fujii, Katsuto Takenaka, Masaki Yasukawa

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Article in Infectious agents and cancer, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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2 · The registry

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Yoshihiro YakushijinDepartment of Clinical Oncology, Ehime University Graduate School of Medicine, Toon-City, Shitsukawa, Ehime, 7910295, Japan. yoshiyak@m.ehime-u.ac.jp.
Kazuhiro HoribaPathogen Genomics Center, National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-Ku, Tokyo, Japan.
Masanori HashinoPathogen Genomics Center, National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-Ku, Tokyo, Japan.
Shintaro YamanakaCancer Center, Ehime University Hospital, Toon-City, Ehime, Japan.
Shinji HasebeCancer Center, Ehime University Hospital, Toon-City, Ehime, Japan.
Shoichiro YamamotoCancer Center, Ehime University Hospital, Toon-City, Ehime, Japan.
Tomomi FujiiPalliative Care Center, Ehime University Hospital, Toon-City, Ehime, Japan.
Katsuto TakenakaDepartment of Hematology, Clinical Immunology, and Infectious Diseases, Ehime University Graduate School of Medicine, Toon-City, Ehime, Japan.
Masaki YasukawaDepartment of Hematology, Clinical Immunology, and Infectious Diseases, Ehime University Graduate School of Medicine, Toon-City, Ehime, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesExtranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT) arises in various extranodal sites and has been linked to chronic inflammation, often triggered by infectious agents. Ocular adnexal (OA) MALT lymphoma has been associated with Chlamydophila psittaci (C. psittaci) in some regions. This study aimed to investigate the involvement of pathogenic microorganisms, including C. psittaci, in OA-MALT lymphoma.

methodsDNA was extracted from 17 formalin-fixed, paraffin-embedded OA-MALT lymphoma samples. Next-generation sequencing was performed, and reads were analyzed with bioinformatic pipelines to detect non-human DNA, focusing on complete or partial genomes of known pathogenic microorganisms, including C. psittaci strain 6BC and other bacteria implicated in lymphomagenesis.

resultsMost sequencing reads mapped to the human genome. No complete or partial genomes of C. psittaci 6BC or other non-human pathogenic microorganisms were detected above background levels, and no consistent enrichment of microbial sequences was observed. DISCUSSION: These findings suggest that, unlike in some Western cohorts, infectious agents such as C. psittaci are unlikely to play a major etiologic role in Japanese OA-MALT lymphoma.

conclusionOur analysis suggests that infectious agents, including C. psittaci, may be not associated with OA-MALT lymphoma in Japan.

Indexed as

Chlamydial infectionNext-generation sequencingOcular adnexal MALT lymphoma

Identifiers

PMID42083033
PMCPMC13317347

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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.