Evidence map›Paper›PMID 42338471›Full record

ArticleiScience2026

IL-8 blockade enhances anti-PD-1 therapeutic activity in renal cell carcinoma in a next-generation patient-derived xenograft model.

Ryuta Sobu, Yuka Kobayashi, Soki Kashima, Takamitsu Inoue, Takayuki Sumiyoshi, Hiroshi Hamana, Masashi Takeda, Yuko Hiroshima, Shinsuke Seki, Nobuhiro Fujiyama and 19 more

Abstract read
In one paragraph

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

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

29 authors.

Ryuta SobuDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Yuka KobayashiLaboratory of Immunology, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan.
Soki KashimaDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Takamitsu InoueDepartment of Urology, International University of Health and Welfare Narita Hospital, Narita, Japan.
Takayuki SumiyoshiDepartment of Urology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Hiroshi HamanaDepartment of Immunology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan.
Masashi TakedaDepartment of Urology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Yuko HiroshimaDepartment of Clinical Pathology, Akita University Graduate School of Medicine, Akita, Japan.
Shinsuke SekiDivision of Animal Experimentation, Bioscience Educational and Research Support Center, Akita University, Akita, Japan.
Nobuhiro FujiyamaCenter for Kidney Disease and Transplantation, Akita University Hospital, Akita, Japan.
Kyoko MasudaLaboratory of Immunology, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan.
Yudai FunakoshiDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Shuhei OkadaDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Keisuke OkuboDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Shuhei TakahashiDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Yuya SekineDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Hiromi SatoDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Mizuki KobayashiDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Ryohei YamamotoDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Taketoshi NaraDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Mitsuru SaitoDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Shintaro NaritaDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Hiroshi NanjoDepartment of Clinical Pathology, Akita University Graduate School of Medicine, Akita, Japan.
Hiroyuki KishiDepartment of Immunology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan.
Takeshi WatanabeLaboratory of Immunology, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan.
Hiroshi KawamotoLaboratory of Immunology, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan.
Shusuke AkamatsuDepartment of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Takashi KobayashiDepartment of Urology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Tomonori HabuchiDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Immune checkpoint inhibitors (ICIs) are widely used for advanced renal cell carcinoma (aRCC); however, predictive biomarkers of response remain insufficiently defined, and treatment resistance is common. We comprehensively analyzed clinical samples from 51 patients with aRCC treated with anti-PD-1 therapy to identify resistance factors. Immunohistochemical analysis of tissue microarrays showed no significant correlation between baseline tumor microenvironment features and therapeutic response. In contrast, peripheral blood flow cytometry demonstrated persistently elevated monocytic myeloid-derived suppressor cells (M-MDSCs) in non-responders. A next-generation patient-derived xenograft (NG-PDX) model established by co-engrafting tumor tissue and peripheral immune cells from the same patient recapitulated patient-specific tumor-immune interactions, using MHC class I/II-knockout immunodeficient mice. In this model, combined blockade of PD-1 and IL-8, a key chemokine recruiting MDSCs, tended to suppress tumor growth. These findings identify immune features associated with PD-1 resistance in aRCC and support NG-PDX models as a platform for evaluating rational immunotherapeutic combinations.

Indexed as

CancerImmune responseTherapy

Identifiers

PMID42338471
PMCPMC13285681

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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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.