Abstract

Pancreatic cancer is one of the most lethal cancers worldwide due to its insidious symptoms, early metastasis, and chemoresistance. Hence, the underlying mechanisms contributing to pancreatic cancer progression require further exploration. Based on accumulating evidence, extracellular vesicles, including exosomes and microvesicles, play a crucial role in pancreatic cancer progression and chemoresistance. Furthermore, they also possess the potential to be promising biomarkers, therapy targets and tools for treating pancreatic cancer. Therefore, in-depth studies on the role of extracellular vesicles in pancreatic cancer are meaningful. In this review, we focus on the regulatory effects of extracellular vesicles on pancreatic cancer progression, metastasis, cancer-related immunity and chemoresistance, particularly their potential roles as biomarkers and therapeutic targets.

Highlights

  • Pancreatic ductal adenocarcinoma (PDAC, hereafter referred to as pancreatic cancer [Pancreatic cancer (PC)]) is the seventh most common malignancy, ranking as the fourth and sixth leading causes of cancer-related death in the USA and China, respectively

  • The dismal prognosis of PC is mainly attributed to poor detection rates at early stages, rapid progression and disappointing surgical resection outcomes

  • When a patient is diagnosed with localized PC, surgical resection is

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Summary

Background

Pancreatic ductal adenocarcinoma (PDAC, hereafter referred to as pancreatic cancer [PC]) is the seventh most common malignancy, ranking as the fourth and sixth leading causes of cancer-related death in the USA and China, respectively. MiR-21 derived from macrophages and CAFs are transferred to cancer cells via EVs, inducing chemoresistance by activating the phosphoinositol 3-kinase (PI3K)/AKT signaling pathway or binding apoptotic peptidase activating factor 1 (APAF1) [83, 85]. The ideal biomarkers for PC should detect the initial lesions at early stage with high sensitivity and specificity, differentiating PC with healthy ones and benign pancreatic diseases They should be able to predict progression and prognosis, contributing to more effective therapy managements. Similar results were reported in the investigations of miR-550 [99] and miR-10b [100], which displayed increased levels in exosomes isolated from the plasma of patients with PC and conditioned media from PC cell lines, suggesting that they may serve as early biomarkers in PC diagnosis. Sensitivity and specificity 72.7% and 92.6% for miR17-5p 95.5% and 81.5% for miR-21 Not mentioned

Methods
Conclusions
Findings
Availability of data and materials Not applicable
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