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Zhang Y, Dong Y, Zhou J, Huang W, Wu Y, Zhao S, Shi Y, Bai S, Li C, Huang Y, Dong A. Possibility for double optimization of siRNA intracellular delivery efficiency and antibacterial activity: Structure screening of pH-sensitive triblock amphiphilic polycation micelles. Colloids Surf B Biointerfaces 2021; 209:112178. [PMID: 34742020 DOI: 10.1016/j.colsurfb.2021.112178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/04/2021] [Accepted: 10/19/2021] [Indexed: 11/29/2022]
Abstract
Optimal combination of hydrophobic-hydrophilic balance, proton buffering and electrostatic interaction is the key issue for designing polycations as efficient gene vectors and antibacterial agents. Herein, we screened a series of pH-sensitive quaternary ammonium-based amphiphilic triblock copolymers, mPEG2k-P(DPAa/DMAb)-PQAc (TDDE-x), which had different pKa values and proton buffering capacities. Significantly, we found that both the highest siRNA intracellular delivery efficiency and the strongest antibacterial capacity occurred on TDDE-3 micelles with the segment structure of mPEG2k-P(DPA50/DMA56)-PQA55. The TDDE-3/siRNA complex achieved 67% silencing efficiency on H9C2 cells (N/P = 5, 50 nM siRNA), higher than the advanced commercial transfection reagents RNAiMAX (58%) and Lipo2000 (30%). Moreover, TDDE-3 micelles showed quite low MICs of 32 μg/mL and 8 μg/mL against E. coli and S. aureus, respectively. Further studies on the structure-function relationship indicated that TDDE-3 micelles could mediate robust endosome escape and siRNA cytosolic release, and strong bacterial cell membrane-destabilizing function. Undoubtedly, this work reveals the possibility for double optimization of siRNA intracellular delivery efficiency and antibacterial activity of amphiphilic polycations by reasonable structure design, which is significant for low-cost development and clinical translation of efficient multifunctional polycations.
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Affiliation(s)
- Yufeng Zhang
- College of Pharmacy, Xinxiang Medical University, 453003 Xinxiang, PR China; Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yanliang Dong
- College of Pharmacy, Xinxiang Medical University, 453003 Xinxiang, PR China
| | - Junhui Zhou
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Wenjun Huang
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yidi Wu
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University, Beijing 100871, China
| | - Shuyue Zhao
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yongli Shi
- College of Pharmacy, Xinxiang Medical University, 453003 Xinxiang, PR China.
| | - Suping Bai
- College of Pharmacy, Xinxiang Medical University, 453003 Xinxiang, PR China
| | - Chunhui Li
- School of Life Science; Advanced Research Institute of Multidisciplinary Science; Institute of Engineering Medicine; Key Laboratory of Molecular Medicine and Biotherapy; Beijing Institute of Technology, Beijing 100081, PR China
| | - Yuanyu Huang
- School of Life Science; Advanced Research Institute of Multidisciplinary Science; Institute of Engineering Medicine; Key Laboratory of Molecular Medicine and Biotherapy; Beijing Institute of Technology, Beijing 100081, PR China
| | - Anjie Dong
- College of Pharmacy, Xinxiang Medical University, 453003 Xinxiang, PR China; Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
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Nandi D, Shivrayan M, Gao J, Krishna J, Das R, Liu B, Thanyumanavan S, Kulkarni A. Core Hydrophobicity of Supramolecular Nanoparticles Induces NLRP3 Inflammasome Activation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:45300-45314. [PMID: 34543013 PMCID: PMC8761361 DOI: 10.1021/acsami.1c14082] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Designer nanomaterials capable of delivering immunomodulators to specific immune cells have been extensively studied. However, emerging evidence suggests that several of these nanomaterials can nonspecifically activate NLRP3 inflammasomes, an intracellular multiprotein complex controlling various immune cell functions, leading to undesirable effects. To understand what nanoparticle attributes activate inflammasomes, we designed a multiparametric polymer supramolecular nanoparticle system to modulate various surface and core nanoparticle-associated molecular patterns (NAMPs), one at a time. We also investigated several underlying signaling pathways, including lysosomal rupture-cathepsin B maturation and calcium flux-mitochondrial ROS production, to gain mechanistic insights into NAMPs-mediated inflammasome activation. Here, we report that out of the four NAMPs tested, core hydrophobicity strongly activates and positively correlates with the NLRP3 assembly compared to surface charge, core rigidity, and surface hydrophobicity. Moreover, we demonstrate different signaling inclinations and kinetics followed by differential core hydrophobicity patterns with the most hydrophobic ones exhibiting both lysosomal rupture and calcium influx early on. Altogether, this study will help design the next generation of polymeric nanomaterials for specific regulation of inflammasome activation, aiding efficient immunotherapy and vaccine delivery.
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Affiliation(s)
- Dipika Nandi
- Department of Chemical Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Manisha Shivrayan
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Jingjing Gao
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Jithu Krishna
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Ritam Das
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Bin Liu
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA
| | - S. Thanyumanavan
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Department of Biomedical Engineering, University of Massachusetts, Amherst, Massachusetts, 01003, USA
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Ashish Kulkarni
- Department of Chemical Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Department of Biomedical Engineering, University of Massachusetts, Amherst, Massachusetts, 01003, USA
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
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Li K, Zhang Y, Hussain A, Weng Y, Huang Y. Progress of Photodynamic and RNAi Combination Therapy in Cancer Treatment. ACS Biomater Sci Eng 2021; 7:4420-4429. [PMID: 34427082 DOI: 10.1021/acsbiomaterials.1c00765] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photodynamic therapy (PDT) is a noninvasive and effective local treatment for cancers that produces selective damage to target tissues and cells. However, PDT alone is unlikely to completely inhibit tumor metastasis and/or local tumor recurrence. RNA interference (RNAi) is a phenomenon of gene silencing mediated by exogenous or endogenous double-stranded RNA (dsRNA). RNAi has entered a golden period of development, with the approval of four treatments employing RNAi. PDT in combination with RNAi therapy to inhibit related targets has been a research hotspot, with better clinical outcomes than monotherapy. In this review, the progress of PDT and small interfering RNA (siRNA) targeting different genes is discussed, while the achievements of the combined immunotherapy are reviewed.
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Affiliation(s)
- Kun Li
- School of Life Science; Advanced Research Institute of Multidisciplinary Science; Institute of Engineering Medicine; Key Laboratory of Molecular Medicine and Biotherapy, Beijing Institute of Technology, Beijing 100081, China
| | - Yuquan Zhang
- School of Life Science; Advanced Research Institute of Multidisciplinary Science; Institute of Engineering Medicine; Key Laboratory of Molecular Medicine and Biotherapy, Beijing Institute of Technology, Beijing 100081, China
| | - Abid Hussain
- School of Life Science; Advanced Research Institute of Multidisciplinary Science; Institute of Engineering Medicine; Key Laboratory of Molecular Medicine and Biotherapy, Beijing Institute of Technology, Beijing 100081, China
| | - Yuhua Weng
- School of Life Science; Advanced Research Institute of Multidisciplinary Science; Institute of Engineering Medicine; Key Laboratory of Molecular Medicine and Biotherapy, Beijing Institute of Technology, Beijing 100081, China
| | - Yuanyu Huang
- School of Life Science; Advanced Research Institute of Multidisciplinary Science; Institute of Engineering Medicine; Key Laboratory of Molecular Medicine and Biotherapy, Beijing Institute of Technology, Beijing 100081, China
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Hung SF, Wen YH, Yu LY, Chiu HC, Chiang YT, Lo CL. Development of a Rapid-Onset, Acid-Labile Linkage Polyplex-Mixed Micellar System for Anticancer Therapy. Polymers (Basel) 2021; 13:polym13111823. [PMID: 34072925 PMCID: PMC8198952 DOI: 10.3390/polym13111823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/26/2021] [Accepted: 05/29/2021] [Indexed: 12/01/2022] Open
Abstract
In the treatment of cancers, small interfering ribonucleic acids (siRNAs) are delivered into cells to inhibit the oncogenic protein’s expression; however, polyanions, hydrophilicity, and rapid degradations in blood, endosomal or secondary lysosomal degradation hamper clinal applications. In this study, we first synthesized and characterized two copolymers: methoxy poly(ethylene glycol)-b-poly(2-hydroxy methacrylate-ketal-pyridoxal) and methoxy poly(ethylene glycol)-b-poly(methacrylic acid-co-histidine). Afterwards, we assembled two polymers with the focal adhesion kinase (FAK) siRNA, forming polyplex-mixed micelles for the treatment of the human colon cancer cell line HCT116. In terms of the physiological condition, the cationic pyridoxal molecules that were conjugated on the copolymer with ketal bonds could electrostatically attract the siRNA. Additionally, the pyridoxal could form a hydrophobic core together with the hydrophobic deprotonated histidine molecules in the other copolymer and the hydrophilic polyethylene glycol (PEG) shell to protect the siRNA. In an acidic condition, the pyridoxal would be cleaved from the polymers due to the breakage of the ketal bonds and the histidine molecules can simultaneously be protonated, resulting in the endosome/lysosome escape effect. On the basis of our results, the two copolymers were successfully prepared and the pyridoxal derivatives were identified to be able to carry the siRNA and be cleavable by the copolymers in an acidic solution. Polyplex-mixed micelles were prepared, and the micellar structures were identified. The endosome escape behavior was observed using a confocal laser scanning microscopy (CLSM). The FAK expression was therefore reduced, and the cytotoxicity of siRNA toward human colon cancer cells was exhibited, rapidly in 24 h. This exceptional anticancer efficiency suggests the potential of the pH-sensitive polyplex-mixed micellar system in siRNA delivery.
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Affiliation(s)
- Shiou-Fen Hung
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 112, Taiwan; (S.-F.H.); (Y.-H.W.); (L.-Y.Y.)
| | - Yu-Han Wen
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 112, Taiwan; (S.-F.H.); (Y.-H.W.); (L.-Y.Y.)
| | - Lu-Yi Yu
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 112, Taiwan; (S.-F.H.); (Y.-H.W.); (L.-Y.Y.)
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 300044, Taiwan;
| | - Yi-Ting Chiang
- School of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun Dist., Taichung City 406040, Taiwan
- Correspondence: (Y.-T.C.); (C.-L.L.); Tel.: +886-4-2205-3366 (ext. 5611) (Y.-T.C.); +886-2-2826-7914 (C.-L.L.)
| | - Chun-Liang Lo
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 112, Taiwan; (S.-F.H.); (Y.-H.W.); (L.-Y.Y.)
- Correspondence: (Y.-T.C.); (C.-L.L.); Tel.: +886-4-2205-3366 (ext. 5611) (Y.-T.C.); +886-2-2826-7914 (C.-L.L.)
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