What question did this study set out to answer?

The aim is to understand the molecular and immunological characteristics of biological borderline resectable pancreatic cancer.

May 15, 2026Annals of Surgery

Biological Borderline Resectable Pancreatic Cancer Represents a Genetically and Immunologically Aggressive Subtype

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Authors

YAYu AraiKobe University AMAtsuhiro MasudaKobe University MTMasahiro TsujimaeKobe University

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Implication

Retrospective analysis reveals high CA19-9 predicts worse outcomes in borderline resectable pancreatic cancer, suggesting aggressive treatment strategies.

Key Points

The aim is to understand the molecular and immunological characteristics of biological borderline resectable pancreatic cancer.
Retrospective analysis of 144 patients with pancreatic ductal adenocarcinoma who underwent surgical resection.
Patients stratified by preoperative CA19-9 levels: <37 U/mL, 37-499 U/mL, and ≥500 U/mL.
Evaluation of clinicopathological characteristics, cancer-specific survival, driver gene alterations, and immune parameters.
Cancer-specific survival was significantly lower in patients with CA19-9 ≥500 U/mL compared to those with <37 U/mL (P = 0.03).
Stepwise increase in mutational burden and frequency of tumors with ≥3 driver gene alterations across CA19-9 strata (Ptrend = 0.01).
Tertiary lymphoid structures positivity decreased with higher CA19-9 levels, indicating an immunosuppressive environment (Ptrend = 0.001).

Cite This Study

Arai et al. (2026) studied this question.

synapsesocial.com/papers/6a06b983e7dec685947ac346 https://doi.org/10.1097/sla.0000000000007075

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Implication

Retrospective analysis reveals high CA19-9 predicts worse outcomes in borderline resectable pancreatic cancer, suggesting aggressive treatment strategies.

Biological Borderline Resectable Pancreatic Cancer Represents a Genetically and Immunologically Aggressive Subtype

Discussion

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Implication

Key Points

Cite This Study

Biological Borderline Resectable Pancreatic Cancer Represents a Genetically and Immunologically Aggressive Subtype

Discussion

Member takes

Implication

Key Points

Cite This Study

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