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NI LAB

Our research focuses on creating innovative nanotechnolgies for RNA therapy and immunoengineering (RNA vaccines, cell therapies, gene editing).

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Our Services

Recent Highlights

Targeted biomimetic fusogenic liposome enhances tumor accumulation, penetration, and therapeutic efficacy of siRNA therapeutics

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Oct 12, 2025                                         Impact factor: 10.2 

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Zhao et al. developed a biomimetic fusogenic liposomal platform to enhance siRNA-based cancer therapy by promoting macrophage-mediated phagocytosis through coordinated silencing of CD47 and PLK1. The liposomes exhibited deep tumor penetration and selective tumor cell targeting, enabling efficient cytosolic delivery of siRNAs. CD47 siRNA suppressed the “don’t eat me” signal by downregulating CD47 expression, while PLK1 siRNA induced apoptosis and enhanced the “eat-me” signal via calreticulin translocation to the cell surface. This dual-silencing approach significantly improved macrophage phagocytosis and antitumor efficacy in a 4T1 tumor-bearing mouse model. The biomimetic fusogenic liposome thus represents a promising therapeutic strategy for triple-negative breast cancer by amplifying innate immune clearance and suppressing tumor growth.

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Read more in Materials Today Bio.

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Dendrimer engineering to overcome delivery challenges of nucleic acids

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Jul 18, 2025                                         Impact factor: 37.6 

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Ni et al. reported dendrimers as precisely engineered macromolecular nanoplatforms for addressing key delivery challenges in nucleic acid therapeutics. Leveraging their highly symmetric architecture and tunable multivalency, dendrimer systems enable efficient nucleic acid encapsulation, protection, and controlled cellular interactions. These structural features facilitate targeted delivery to hard-to-transfect cell types and improved access to difficult-to-reach tissues. Mechanistically, advances in dendrimer generation control and surface functionalization enhance cellular uptake, endosomal escape, and intracellular trafficking of nucleic acids. Collectively, these design innovations position dendrimers as a promising and versatile strategy for improving the efficacy of nucleic acid–based therapies.

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Read more in Nature Reviews Bioengineering.

Supports for work in Ni lab

  • A*Star NATi

  • MOE TIER 2

  • NMRC OFIRG

  • NRF Competitive Research Programme

  • WUXI APPTEC-NUS

  • NUS Start-up

JOIN US AT NUS!

We are constantly seeking young researchers and students to join our lab! 

If you are interested in joining us or have any inquiries, please contact Dr Ni at qqian.ni@nus.edu.sg

Copyright © 2023 Dr Ni Qianqian's Lab. All Rights Reserved.

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