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REVIEW article

Front. Immunol.

Sec. Cancer Immunity and Immunotherapy

This article is part of the Research TopicPrecision Immuno-Oncology: Harnessing Novel Drug Development, Biomarkers, and Nanoparticle-Based Therapeutic Platforms to Overcome Cancer ResistanceView all articles

Targeting Cancer via Macrophage-Derived Exosomal miRNAs: Implications for Tumor Progression and Resistance

Provisionally accepted
Prasanna Srinivasan  RamalingamPrasanna Srinivasan Ramalingam1Muhammad  AfzalMuhammad Afzal2M Arockia  BabuM Arockia Babu3Rekha  M MRekha M M4Samir  SahooSamir Sahoo5Surya Nath  PandeySurya Nath Pandey6Haider  AliHaider Ali7Md Sadique  HussainMd Sadique Hussain8Gaurav  GuptaGaurav Gupta10,9Janaki Ramaiah  MekalaJanaki Ramaiah Mekala11*Sivakumar  ArumugamSivakumar Arumugam12*
  • 1School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
  • 2Batterjee Medical College, Jeddah, Saudi Arabia
  • 3GLA University, Mathura, India
  • 4JAIN (Deemed-to-be University), Bengaluru, India
  • 5Siksha O Anusandhan University Institute of Medical Sciences and SUM Hospital, Bhubaneswar, India
  • 6Teerthanker Mahaveer University, Moradabad, India
  • 7SIMATS Deemed University, Chennai, India
  • 8Uttaranchal University, Dehradun, India
  • 9Chitkara University, Rajpura, India
  • 10Ajman University, Ajman, United Arab Emirates
  • 11Vellore Institute of Technology,, vellore, India
  • 12Vellore Institute of Technology, Vellore, India

The final, formatted version of the article will be published soon.

Recent studies on macrophages showed their contribution to tumorigenesis, progression, metastasis, and chemoresistance by influencing the local tumor microenvironment and cancer cells. Exosomes form a subset of extracellular vesicles and have played a major role in the interaction between cancer cells and macrophages. This review intends to discuss the existing literature on employing macrophage-derived exosomes as a vehicle for microRNA (miRNA) delivery in oncological applications. It will evaluate the molecular principles of this therapeutic approach and its capacity to enhance cancer therapy by elucidating problems like drug and radio-resistance. This review uniquely emphasizes the diagnostic and therapeutic potential of macrophage-derived exosomal miRNAs, summarizing current understandings into their molecular processes, tumor specificity, and strategies to overcome therapeutic resistance. This review synthesizes recent studies and evaluates how macrophage-derived exosomes and their miRNAs contribute to cancers. These vesicles are multipurpose tools that regulate tumor behaviour, considering they can regulate it through post-transcriptional regulation and protein phosphorylation. Such exosomes that are engineered can potentially introduce a novel dimension because they have the capability of delivering targeted oncogenic or tumor-suppressive miRNAs to overcome limitations of current cancer therapeutics, particularly drug and radioresistance. Engineered macrophage-derived exosomes may thus have the potential as a novel approach for cancer treatment and overcoming therapeutic resistance.

Keywords: Cancer biomarkers, exosomal miRNAs, macrophage-derived exosomes, therapeutic resistance, Tumor-associated macrophages, Tumor Microenvironment

Received: 11 Aug 2025; Accepted: 03 Nov 2025.

Copyright: © 2025 Ramalingam, Afzal, Babu, M M, Sahoo, Pandey, Ali, Hussain, Gupta, Mekala and Arumugam. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence:
Janaki Ramaiah Mekala, janakiramaiah.m@vit.ac.in
Sivakumar Arumugam, siva_kumar.a@vit.ac.in

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