Related Experiment Video
Updated: Jul 11, 2025

Author Spotlight: Exploring Strategies for Successful Immune Response Against Tumors
Published on: August 16, 2024
Remodeling the tumor immune microenvironment via siRNA therapy for precision cancer treatment
Lingxi Jiang1, Yao Qi2, Lei Yang3
1Sichuan Provincial Key Laboratory for Human Disease Gene Study and Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, China.
Abstract:
How to effectively transform the pro-oncogenic tumor microenvironments (TME) surrounding a tumor into an anti-tumoral never fails to attract people to study. Small interfering RNA (siRNA) is considered one of the most noteworthy research directions that can regulate gene expression following a process known as RNA interference (RNAi). The research about siRNA delivery targeting tumor cells and TME has been on the rise in recent years. Using siRNA drugs to silence critical proteins in TME was one of the most efficient solutions. However, the manufacture of a siRNA delivery system faces three major obstacles, i.e., appropriate cargo protection, accurately targeted delivery, and site-specific cargo release. In the following review, we summarized the pharmacological actions of siRNA drugs in remolding TME. In addition, the delivery strategies of siRNA drugs and combination therapy with siRNA drugs to remodel TME are thoroughly discussed. In the meanwhile, the most recent advancements in the development of all clinically investigated and commercialized siRNA delivery technologies are also presented. Ultimately, we propose that nanoparticle drug delivery siRNA may be the future research focus of oncogene therapy. This summary offers a thorough analysis and roadmap for general readers working in the field.
Insights
Transforming tumor microenvironments (TME) using small interfering RNA (siRNA) is crucial for cancer therapy. This review details siRNA
Area of Science:
- Oncology
- Molecular Biology
- Biotechnology
Background:
- The tumor microenvironment (TME) often supports tumor growth, necessitating strategies for its transformation.
- Small interfering RNA (siRNA) offers a powerful method for gene silencing via RNA interference (RNAi).
- Current research focuses on siRNA delivery to target tumor cells and the TME.
Purpose of the Study:
- To review the pharmacological actions of siRNA in remodeling the TME.
- To discuss siRNA delivery strategies and combination therapies for TME modulation.
- To present advancements in clinically investigated and commercialized siRNA delivery technologies.
Main Methods:
- Literature review of siRNA pharmacology and delivery systems.
- Analysis of current clinical and commercial siRNA delivery technologies.
- Discussion of challenges in siRNA delivery: cargo protection, targeting, and release.
Main Results:
- siRNA drugs show promise in silencing critical TME proteins.
- Nanoparticle-based siRNA delivery is highlighted as a key strategy.
- Significant advancements have been made in siRNA delivery technologies.
Conclusions:
- siRNA holds significant potential for transforming the TME into an anti-tumoral state.
- Overcoming delivery challenges is essential for effective siRNA-based cancer therapy.
- Nanoparticle siRNA delivery is proposed as a future research focus for oncogene therapy.
Related Concept Videos
siRNA - Small Interfering RNAs
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
Tumor Immunotherapy
Experimental RNAi
MicroRNAs
Targeted Cancer Therapies
There are several types of targeted therapies against...
The Tumor Microenvironment

