Evidence map›Paper›PMID 38483588›Full record

ArticleJournal of cancer research and clinical oncology2024

Prognostic significance of immunohistochemical classification utilizing biopsy specimens in patients with extensive-disease small-cell lung cancer treated with first-line chemotherapy and immune checkpoint inhibitors.

Naoki Shijubou, Toshiyuki Sumi, Terufumi Kubo, Kenta Sasaki, Tomohide Tsukahara, Takayuki Kanaseki, Kenji Murata, Yoshiko Keira, Kotomi Terai, Tatsuru Ikeda and 4 more

Open access · goldAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.8field-weighted citation impact, top 25% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
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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

14 authors at 2 institutions in 1 country.

Naoki ShijubouDepartment of Pathology, Sapporo Medical University School of Medicine, Sapporo, 060-8556, Japan. shjibou.1229@gmail.com.ORCID http://orcid.org/0000-0001-8005-1745
Toshiyuki SumiDepartment of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan.ORCID http://orcid.org/0000-0002-2540-5878
Terufumi KuboDepartment of Pathology, Sapporo Medical University School of Medicine, Sapporo, 060-8556, Japan. kuboteru@sapmed.ac.jp.
Kenta SasakiDepartment of Pathology, Sapporo Medical University School of Medicine, Sapporo, 060-8556, Japan.
Tomohide TsukaharaDepartment of Pathology, Sapporo Medical University School of Medicine, Sapporo, 060-8556, Japan.
Takayuki KanasekiDepartment of Pathology, Sapporo Medical University School of Medicine, Sapporo, 060-8556, Japan.
Kenji MurataDepartment of Pathology, Sapporo Medical University School of Medicine, Sapporo, 060-8556, Japan.
Yoshiko KeiraDepartment of Pathology, Hakodate Goryoukaku Hospital, Hakodate, Hokkaido, Japan.
Kotomi TeraiDepartment of Pathology, Hakodate Goryoukaku Hospital, Hakodate, Hokkaido, Japan.
Tatsuru IkedaDepartment of Pathology, Hakodate Goryoukaku Hospital, Hakodate, Hokkaido, Japan.
Yuichi YamadaDepartment of Respiratory Medicine, Hakodate Goryoukaku Hospital, Hakodate, Hokkaido, Japan.
Hirofumi ChibaDepartment of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan.ORCID http://orcid.org/0000-0002-7033-3084
Yoshihiko HirohashiDepartment of Pathology, Sapporo Medical University School of Medicine, Sapporo, 060-8556, Japan. hirohash@sapmed.ac.jp.
Toshihiko TorigoeDepartment of Pathology, Sapporo Medical University School of Medicine, Sapporo, 060-8556, Japan.
Sapporo Medical University · JPHakodate National Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAlthough immune checkpoint inhibitors (ICIs), together with cytotoxic chemotherapy (chemoimmunotherapy), have been adapted for the initial treatment of extensive-disease small-cell lung cancer (ED-SCLC), they have achieved limited success. In ED-SCLC, a subtype of SCLC, the expression of immune-related molecules and clinical data are not well understood in relation to ICI treatment efficiency.

methodsWe examined lung biopsy specimens from patients diagnosed with ED-SCLC treated with chemoimmunotherapy or chemotherapy. SCLC subtype, expression of HLA class I, and infiltration of CD8-positive cells were examined using immunohistochemistry (IHC). Subsequently, the association between clinical factors, IHC results, and progression-free survival or overall survival was assessed.

resultsMost of the cases showed the achaete-scute homolog 1 (ASCL1) subtype. Among the 75 SCLC cases, 29 expressed high levels of HLA class I, while 46 showed low levels or a negative result; 33 patients were characterized as CD8-high, whereas 42 were CD8-low. In the chemoimmunotherapy cohort, multivariate analysis revealed a correlation between CD8-high and improved survival. Specifically, patients in the CD8-high group of the chemoimmunotherapy cohort experienced enhanced survival compared to those in the chemotherapy cohort, which was attributed to ICI addition. IHC subtype analysis demonstrated a survival advantage in the SCLC-I and SCLC-A groups when ICI was combined with chemotherapy compared to chemotherapy alone.

conclusionOur study highlights the predictive value of IHC-classified subtypes and CD8-positive cell infiltration in estimating outcomes for patients with ED-SCLC treated with chemoimmunotherapy as a first-line therapy. These findings have practical implications for daily clinical assessments and treatment decisions.

Indexed as

Lung NeoplasmsSmall Cell Lung CarcinomaBiopsyHumansImmune Checkpoint InhibitorsPrognosisImmune Checkpoint InhibitorsCD8-positive cellChemoimmunotherapyExtensive-disease small-cell lung cancerHLA-class IReal clinical setting

Identifiers

PMID38483588
PMCPMC10940450
OpenAlexW4392811925

What OpenQuestion holds

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LicenceCC BY
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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.