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Updated: May 16, 2025

Generation of an Orthotopic Xenograft of Pancreatic Cancer Cells by Ultrasound-Guided Injection
Published on: November 1, 2021
Personalized syringes offer hope for pancreatic cancer patients
Longling Silvia Shui1, Peter M K Westcott1
1Cold Spring Harbor Laboratory, New York, NY, USA.
Abstract:
Pancreatic cancer has traditionally been considered refractory to immunotherapy. In a follow-up to the first clinical trial of personalized mRNA vaccines against this deadly cancer, published in Nature, Sethna et al. report compelling evidence of long-lasting immunity.
Insights
Personalized mRNA vaccines show promise against pancreatic cancer, a disease once thought untreatable with immunotherapy. This study provides evidence of durable, long-lasting immune responses in patients.
Area of Science:
- Oncology
- Immunology
- Vaccine Development
Background:
- Pancreatic cancer is notoriously resistant to traditional immunotherapy approaches.
- Previous research has explored novel treatment strategies for this aggressive malignancy.
Purpose of the Study:
- To evaluate the long-term efficacy and immunogenicity of personalized mRNA vaccines in pancreatic cancer patients.
- To build upon initial findings from the first clinical trial of these vaccines.
Main Methods:
- The study involved a follow-up analysis of patients who received personalized mRNA vaccines.
- Immune response markers and clinical outcomes were assessed over an extended period.
Main Results:
- Compelling evidence of long-lasting immunity was observed in patients treated with the personalized mRNA vaccines.
- The vaccines demonstrated a durable immune response, suggesting potential for sustained anti-tumor activity.
Conclusions:
- Personalized mRNA vaccines represent a promising therapeutic strategy for pancreatic cancer.
- These findings challenge the historical view of pancreatic cancer as immunotherapy-refractory and highlight the potential for durable immune memory.

