Evidence map›Paper›PMID 42092824›Full record

ArticleBMC cancer2026

Evaluation of the abscopal-like effect of radioimmunotherapy on sentinel lymph nodes in H22 hepatocellular carcinoma via dynamic lymphography.

Hui Wang, Dengyun Chen, Zhehan Liu, Xuefeng Zhao, Jinzhou Zhang, Dan Zhang

Abstract read
In one paragraph

Article in BMC 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

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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

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Hui WangDepartment of Nuclear Medicine, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei City, Anhui Province, 230001, China.
Dengyun ChenDepartment of Nuclear Medicine, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei City, Anhui Province, 230001, China.
Zhehan LiuFirst School of Clinical Medicine, Anhui Medical University, Hefei, 230032, China.
Xuefeng ZhaoDepartment of Nuclear Medicine, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei City, Anhui Province, 230001, China.
Jinzhou ZhangDepartment of Nuclear Medicine, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei City, Anhui Province, 230001, China.
Dan ZhangDepartment of Nuclear Medicine, the First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei City, Anhui Province, 230001, China. zhangdan2025@fy.ahmu.edu.cn.

Funding

National Natural Science Foundation of China 81801736
6 · The paper itself

Abstract

backgroundThe synergistic suppressive effects of the radioimmunotherapy-induced abscopal effect on distant non-irradiated tumors have recently emerged as a research hotspot. However, studies on its specific regulatory role in adjacent sentinel lymph nodes (SLNs) remain limited. The deep location and small size of SLNs hinder the monitoring of treatment-related changes, underscoring the need for lymphography-based approaches. In this study, we aimed to evaluate the abscopal-like effect of radioimmunotherapy on SLNs in an H22 hepatocellular carcinoma mouse model via dynamic lymphography.

methodsH22 murine hepatocarcinoma cells were transplanted into the right hind foot sole of C57BL/6 mice. Fourteen days post-inoculation, mice with SLNs were selected and divided into six groups: control, isotype control Ig, anti-PD-1 alone, irradiation (IR) alone, irradiation + isotype control Ig, and IR + anti-PD-1. The volume and weights of tumors and non-irradiated SLNs were measured. The SLNs were imaged with ¹⁸F-fluorodeoxyglucose (

resultsIn this mouse model, the IR + anti-PD-1 combination treatment exerted a marked suppressive effect on the growth of both irradiated tumors and non-irradiated SLNs, demonstrating a robust enhancement of the abscopal-like effect compared with the monotherapy groups. Mechanistic investigations demonstrated elevated CD8⁺ T cell infiltration in non-irradiated SLNs, suggesting that enhanced systemic anti-tumor immunity mediated the effect. Dynamic ¹⁸F-FDG PET lymphography enabled clear visualization of SLNs as early as 30 s post-injection, with sustained imaging clarity for over 30 min. This method also demonstrated decreased radioactive accumulation in irradiated tumors and non-irradiated SLNs, confirming an enhanced abscopal-like effect with the IR and anti-PD-1 combination approach.

conclusionsOur data demonstrate that the regression of SLNs adjacent to the irradiation field, mediated by the abscopal-like effect of radioimmunotherapy, can be sensitively and effectively tracked via dynamic

Indexed as

Carcinoma, HepatocellularLiver NeoplasmsLymphographyRadioimmunotherapySentinel Lymph NodeAnimalsCell Line, TumorDisease Models, AnimalMaleMiceMice, Inbred C57BLProgrammed Cell Death 1 ReceptorProgrammed Cell Death 1 ReceptorAbscopal effectHepatocellular carcinomaIrradiationLymphographyPD-1

Identifiers

PMID42092824
PMCPMC13317284

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