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Sun L, Li Z, Lan J, Wu Y, Zhang T, Ding Y. Better together: nanoscale co-delivery systems of therapeutic agents for high-performance cancer therapy. Front Pharmacol 2024; 15:1389922. [PMID: 38831883 PMCID: PMC11144913 DOI: 10.3389/fphar.2024.1389922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/22/2024] [Indexed: 06/05/2024] Open
Abstract
Combination therapies can enhance the sensitivity of cancer to drugs, lower drug doses, and reduce side effects in cancer treatment. However, differences in the physicochemical properties and pharmacokinetics of different therapeutic agents limit their application. To avoid the above dilemma and achieve accurate control of the synergetic ratio, a nanoscale co-delivery system (NCDS) has emerged as a prospective tool for combined therapy in cancer treatment, which is increasingly being used to co-load different therapeutic agents. In this study, we have summarized the mechanisms of therapeutic agents in combination for cancer therapy, nanoscale carriers for co-delivery, drug-loading strategies, and controlled/targeted co-delivery systems, aiming to give a general picture of these powerful approaches for future NCDS research studies.
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Affiliation(s)
- Liyan Sun
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhe Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- The MOE Innovation Centre for Basic Medicine Research on Qi-Blood TCM Theories, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jinshuai Lan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- The MOE Innovation Centre for Basic Medicine Research on Qi-Blood TCM Theories, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ya Wu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tong Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- The MOE Innovation Centre for Basic Medicine Research on Qi-Blood TCM Theories, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yue Ding
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- The MOE Innovation Centre for Basic Medicine Research on Qi-Blood TCM Theories, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Tang B, Lau KM, Zhu Y, Shao C, Wong WT, Chow LMC, Wong CTT. Chemical Modification of Cytochrome C for Acid-Responsive Intracellular Apoptotic Protein Delivery for Cancer Eradication. Pharmaceutics 2024; 16:71. [PMID: 38258082 PMCID: PMC10819283 DOI: 10.3390/pharmaceutics16010071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/29/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Delivering bioactive proteins into cells without carriers presents significant challenges in biomedical applications due to limited cell membrane permeability and the need for targeted delivery. Here, we introduce a novel carrier-free method that addresses these challenges by chemically modifying proteins with an acid-responsive cell-penetrating peptide (CPP) for selective intracellular delivery within tumours. Cytochrome C, a protein known for inducing apoptosis, served as a model for intracellular delivery of therapeutic proteins for cancer treatment. The CPP was protected with 2,3-dimethyl maleic anhydride (DMA) and chemically conjugated onto the protein surface, creating an acid-responsive protein delivery system. In the acidic tumour microenvironment, DMA deprotects and exposes the positively charged CPP, enabling membrane penetration. Both in vitro and in vivo assays validated the pH-dependent shielding mechanism, demonstrating the modified cytochrome C could induce apoptosis in cancer cells in a pH-selective manner. These findings provide a promising new approach for carrier-free and tumour-targeted intracellular delivery of therapeutic proteins for a wide range of potential applications.
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Affiliation(s)
| | | | | | | | | | - Larry M. C. Chow
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Kowloon, Hong Kong, China; (B.T.); (K.M.L.); (Y.Z.); (C.S.); (W.-T.W.)
| | - Clarence T. T. Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Kowloon, Hong Kong, China; (B.T.); (K.M.L.); (Y.Z.); (C.S.); (W.-T.W.)
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Gao Y, Wang K, Zhang J, Duan X, Sun Q, Men K. Multifunctional nanoparticle for cancer therapy. MedComm (Beijing) 2023; 4:e187. [PMID: 36654533 PMCID: PMC9834710 DOI: 10.1002/mco2.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 10/20/2022] [Accepted: 11/01/2022] [Indexed: 01/14/2023] Open
Abstract
Cancer is a complex disease associated with a combination of abnormal physiological process and exhibiting dysfunctions in multiple systems. To provide effective treatment and diagnosis for cancer, current treatment strategies simultaneously focus on various tumor targets. Based on the rapid development of nanotechnology, nanocarriers have been shown to exhibit excellent potential for cancer therapy. Compared with nanoparticles with single functions, multifunctional nanoparticles are believed to be more aggressive and potent in the context of tumor targeting. However, the development of multifunctional nanoparticles is not simply an upgraded version of the original function, but involves a sophisticated system with a proper backbone, optimized modification sites, simple preparation method, and efficient function integration. Despite this, many well-designed multifunctional nanoparticles with promising therapeutic potential have emerged recently. Here, to give a detailed understanding and analyzation of the currently developed multifunctional nanoparticles, their platform structures with organic or inorganic backbones were systemically generalized. We emphasized on the functionalization and modification strategies, which provide additional functions to the nanoparticle. We also discussed the application combination strategies that were involved in the development of nanoformulations with functional crosstalk. This review thus provides an overview of the construction strategies and application advances of multifunctional nanoparticles.
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Affiliation(s)
- Yan Gao
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospital of Sichuan UniversityChengduSichuan ProvinceChina
| | - Kaiyu Wang
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospital of Sichuan UniversityChengduSichuan ProvinceChina
| | - Jin Zhang
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospital of Sichuan UniversityChengduSichuan ProvinceChina
| | - Xingmei Duan
- Department of PharmacyPersonalized Drug Therapy Key Laboratory of Sichuan ProvinceSichuan Academy of Medical Sciences & Sichuan Provincial People's HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaChengduSichuan ProvinceChina
| | - Qiu Sun
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospital of Sichuan UniversityChengduSichuan ProvinceChina
| | - Ke Men
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospital of Sichuan UniversityChengduSichuan ProvinceChina
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siRNA and targeted delivery systems in breast cancer therapy. CLINICAL & TRANSLATIONAL ONCOLOGY : OFFICIAL PUBLICATION OF THE FEDERATION OF SPANISH ONCOLOGY SOCIETIES AND OF THE NATIONAL CANCER INSTITUTE OF MEXICO 2022; 25:1167-1188. [PMID: 36562927 DOI: 10.1007/s12094-022-03043-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022]
Abstract
Recently, nucleic acid drugs have been considered as promising candidates in treatment of various diseases, especially cancer. Because of developing resistance to conventional chemotherapy, use of genetic tools in cancer therapy appears inevitable. siRNA is a RNAi tool with capacity of suppressing target gene. Owing to overexpression of oncogenic factors in cancer, siRNA can be used for suppressing those pathways. This review emphasizes the function of siRNA in treatment of breast tumor. The anti-apoptotic-related genes including Bcl-2, Bcl-xL and survivin can be down-regulated by siRNA in triggering cell death in breast cancer. STAT3, STAT8, Notch1, E2F3 and NF-κB are among the factors with overexpression in breast cancer that their silencing by siRNA paves the way for impairing tumor proliferation and invasion. The oncogenic mechanisms in drug resistance development in breast tumor such as lncRNAs can be suppressed by siRNA. Furthermore, siRNA reducing P-gp activity can increase drug internalization in tumor cells. Because of siRNA degradation at bloodstream and low accumulation at tumor site, nanoplatforms have been employed for siRNA delivery to suppress breast tumor progression via improving siRNA efficacy in gene silencing. Development of biocompatible and efficient nanostructures for siRNA delivery can make milestone progress in alleviation of breast cancer patients.
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Yadav DN, Ali MS, Thanekar AM, Pogu SV, Rengan AK. Recent Advancements in the Design of Nanodelivery Systems of siRNA for Cancer Therapy. Mol Pharm 2022; 19:4506-4526. [PMID: 36409653 DOI: 10.1021/acs.molpharmaceut.2c00811] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
RNA interference (RNAi) has increased the possibility of restoring RNA drug targets for cancer treatment. Small interfering RNA (siRNA) is a promising therapeutic RNAi tool that targets the defective gene by inhibiting its mRNA expression and stopping its translation. However, siRNAs have flaws like poor intracellular trafficking, RNase degradation, rapid kidney filtration, off-targeting, and toxicity, which limit their therapeutic efficiency. Nanocarriers (NCs) have been designed to overcome such flaws and increase antitumor activity. Combining siRNA and anticancer drugs can give synergistic effects in cancer cells, making them a significant gene-modification tool in cancer therapy. Our discussion of NCs-mediated siRNA delivery in this review includes their mechanism, limitations, and advantages in comparison with naked siRNA delivery. We will also discuss organic NCs (polymers and lipids) and inorganic NCs (quantum dots, carbon nanotubes, and gold) that have been reported for extensive delivery of therapeutic siRNA to tumor sites. Finally, we will conclude by discussing the studies based on organic and inorganic NCs-mediated siRNA drug delivery systems conducted in the years 2020 and 2021.
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Affiliation(s)
- Dokkari Nagalaxmi Yadav
- Department of Biomedical Engineering Indian Institute of Technology Hyderabad, Kandi 502284, India
| | - Mohammad Sadik Ali
- Department of Biomedical Engineering Indian Institute of Technology Hyderabad, Kandi 502284, India
| | | | - Sunil Venkanna Pogu
- Department of Biomedical Engineering Indian Institute of Technology Hyderabad, Kandi 502284, India
| | - Aravind Kumar Rengan
- Department of Biomedical Engineering Indian Institute of Technology Hyderabad, Kandi 502284, India
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Shi M, Zhang J, Wang Y, Han Y, Zhao X, Hu H, Qiao M, Chen D. Blockage of the IDO1 pathway by charge-switchable nanoparticles amplifies immunogenic cell death for enhanced cancer immunotherapy. Acta Biomater 2022; 150:353-366. [PMID: 35843594 DOI: 10.1016/j.actbio.2022.07.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 06/15/2022] [Accepted: 07/10/2022] [Indexed: 02/08/2023]
Abstract
Immunosuppressive tumor microenvironment (ITM), poor immunogenicity and low tumor penetration markedly reduce the tumor immunotherapy capability. To address these hurdles, we successfully engineered acidity-triggered nanoparticles (NPs) with size-reduction and charge-switchable to boost tumor immunotherapy based on indoleamine 2,3-dioxygenase 1 siRNA (IDO1 siRNA) and immunogenic cell death (ICD). The NPs significantly augmented tumor penetrating ability and improved cellular uptake via the detachment of 2,3-dimethylmaleic anhydride grafted poly(ethylene glycol)-poly(L-lysine) copolymer (mPEG-PLL-DMA, PLM) from large-sized NPs with a negative charge. Subsequently, the NPs with a positive charge and small size rapidly escaped from the lysosomes and released mitoxantrone (MIT) and IDO1 siRNA. The antitumor immune response of IDO1 siRNA and MIT provided good antitumor capability through enhancing DCs maturation, improving numbers of CTLs and downregulating the level of Tregs in tumor tissues. In summary, the results demonstrated that charge-switchable NPs based on blockage of the IDO1 pathway and ICD activation induce an efficient antitumor immune response, thus showing high potential for treating primary/distant tumor and reducing metastasis. STATEMENT OF SIGNIFICANCE: Acidity-triggered nanoparticles (NPs) with size-reduction and charge-switchable to boost tumor immunotherapy based on indoleamine 2,3-dioxygenase 1 siRNA (IDO1 siRNA) and immunogenic cell death (ICD) were engineered. NPs augmented tumor penetrating ability and improved cellular uptake via the detachment of mPEG-PLL-DMA (PLM) from large-sized MIT/siR-PLM/PPA NPs with negative charge to expose miniature and positively charged MIT/siR-PPA NPs. The NPs rapidly escaped from the lysosome and sequentially released mitoxantrone (MIT) and IDO1 siRNA. The antitumor immune synergistic effect of inhibiting the IDO1 pathway by IDO1 siRNA and inducting ICD by MIT provided dramatic antitumor capability through enhancing DCs maturation, improving numbers of CTLs and downregulating the level of Tregs in tumor tissues. And the NPs revealed a promising pathway against aggressive and difficult-to-treat cancers.
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Affiliation(s)
- Menghao Shi
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Jiulong Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Yu Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Yanyan Han
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Xiuli Zhao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Haiyang Hu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Mingxi Qiao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Dawei Chen
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang, Liaoning 110016, PR China.
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Targeted Cancer Therapy via pH-Functionalized Nanoparticles: A Scoping Review of Methods and Outcomes. Gels 2022; 8:gels8040232. [PMID: 35448133 PMCID: PMC9030880 DOI: 10.3390/gels8040232] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/03/2022] [Accepted: 04/06/2022] [Indexed: 02/04/2023] Open
Abstract
(1) Background: In recent years, several studies have described various and heterogenous methods to sensitize nanoparticles (NPs) to pH changes; therefore, in this current scoping review, we aimed to map current protocols for pH functionalization of NPs and analyze the outcomes of drug-loaded pH-functionalized NPs (pH-NPs) when delivered in vivo in tumoral tissue. (2) Methods: A systematic search of the PubMed database was performed for all published studies relating to in vivo models of anti-tumor drug delivery via pH-responsive NPs. Data on the type of NPs, the pH sensitization method, the in vivo model, the tumor cell line, the type and name of drug for targeted therapy, the type of in vivo imaging, and the method of delivery and outcomes were extracted in a separate database. (3) Results: One hundred and twenty eligible manuscripts were included. Interestingly, 45.8% of studies (n = 55) used polymers to construct nanoparticles, while others used other types, i.e., mesoporous silica (n = 15), metal (n = 8), lipids (n = 12), etc. The mean acidic pH value used in the current literature is 5.7. When exposed to in vitro acidic environment, without exception, pH-NPs released drugs inversely proportional to the pH value. pH-NPs showed an increase in tumor regression compared to controls, suggesting better targeted drug release. (4) Conclusions: pH-NPs were shown to improve drug delivery and enhance antitumoral effects in various experimental malignant cell lines.
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Shi M, Zhang J, Wang Y, Peng C, Hu H, Qiao M, Zhao X, Chen D. Tumor-specific nitric oxide generator to amplify peroxynitrite based on highly penetrable nanoparticles for metastasis inhibition and enhanced cancer therapy. Biomaterials 2022; 283:121448. [PMID: 35245730 DOI: 10.1016/j.biomaterials.2022.121448] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/10/2022] [Accepted: 02/25/2022] [Indexed: 12/22/2022]
Abstract
Multiple biological barriers and tumor metastasis severely impede the tumor therapy. To address these adversities, an acid-activated poly (ethylene glycol)-poly-l-lysine-2,3-dimethylmaleic anhydride/poly (ε-caprolactone)-poly(l-arginine)/β-lapachone nanoparticles (mPEG-PLL-DMA/PCL-P(L-arg)/β-Lap, PLM/PPA/β-Lap NPs) were constructed with charge-reversal and size-reduction for β-Lap delivery with a cascade reaction of reactive oxygen species (ROS) and nitric oxide (NO) production. The nanosystem exhibited highly penetrable, superior cellular uptake and desirable endo-lysosomal escape thanks to size-reduction, charge-reversal and proton sponge, respectively. The vast bulk of ROS, which rapidly generated from β-Lap under high concentration quinone oxidoreductase 1 (NQO1), catalyzed guanidine groups to produce NO and generated highly toxic peroxynitrite (ONOO-). ONOO- would activate pro-matrix metalloproteinases (pro-MMPs) to generate MMPs, degrade the dense extracellular matrix (ECM) to augment the penetration capability, and aggravate DNA damage. NO and ONOO- influenced mitochondrial function by decreasing mitochondrial membrane potential and prevented the production of adenosine triphosphate (ATP), which inhibited the ATP-dependent tumor-derived microvesicles (TMVs) and restrained tumor metastasis. NO was defined as an epithelial mesenchymal transition (EMT) inhibitor to restrain tumor metastasis. All consequences demonstrated that PLM/PPA/β-lap NPs exhibited efficient penetration capability, outstanding anti-metastasis activity and favorable antitumor efficacy. Those novel acid-activated NPs are intended to provide further inspiration for multifunctional NO gas therapy.
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Affiliation(s)
- Menghao Shi
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Jiulong Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Yu Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Chang Peng
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Haiyang Hu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Mingxi Qiao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Xiuli Zhao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, PR China.
| | - Dawei Chen
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, PR China.
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Yan Y, Liu XY, Lu A, Wang XY, Jiang LX, Wang JC. Non-viral vectors for RNA delivery. J Control Release 2022; 342:241-279. [PMID: 35016918 PMCID: PMC8743282 DOI: 10.1016/j.jconrel.2022.01.008] [Citation(s) in RCA: 98] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 12/13/2022]
Abstract
RNA-based therapy is a promising and potential strategy for disease treatment by introducing exogenous nucleic acids such as messenger RNA (mRNA), small interfering RNA (siRNA), microRNA (miRNA) or antisense oligonucleotides (ASO) to modulate gene expression in specific cells. It is exciting that mRNA encoding the spike protein of COVID-19 (coronavirus disease 2019) delivered by lipid nanoparticles (LNPs) exhibits the efficient protection of lungs infection against the virus. In this review, we introduce the biological barriers to RNA delivery in vivo and discuss recent advances in non-viral delivery systems, such as lipid-based nanoparticles, polymeric nanoparticles, N-acetylgalactosamine (GalNAc)-siRNA conjugate, and biomimetic nanovectors, which can protect RNAs against degradation by ribonucleases, accumulate in specific tissue, facilitate cell internalization, and allow for the controlled release of the encapsulated therapeutics.
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Affiliation(s)
- Yi Yan
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xiao-Yu Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - An Lu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xiang-Yu Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Lin-Xia Jiang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Jian-Cheng Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China..
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Cell Penetrating Peptide-Based Self-Assembly for PD-L1 Targeted Tumor Regression. Int J Mol Sci 2021; 22:ijms222413314. [PMID: 34948105 PMCID: PMC8703959 DOI: 10.3390/ijms222413314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/05/2021] [Accepted: 12/07/2021] [Indexed: 01/06/2023] Open
Abstract
Cell penetrating peptides (CPPs) are peptides that can directly adapt to cell membranes and then permeate into cells. CPPs are usually covalently linked to the surface of nanocarriers to endow their permeability to the whole system. However, hybrids with lipids or polymers make the metabolism much more sophisticated and even more difficult to determine. In this study, we present a continuous sequence of 18 amino acids (FFAARTMIWY(d-P)GAWYKRI). It forms nanospheres around 170 nm, which increase slightly after loading with siRNA and DOX. Notably, it can be internalized by cancer cells mainly through electronic interactions and PD-L1-mediated endocytosis. Compared with poly-l-lysine and polyethyleneimine, it has a much higher efficiency (about four times) of gene transduction while lowering toxicity. In the treatment of cancer, it causes apoptosis (21%) and inhibits the expression of SURVIVIN protein in vitro. In vivo, it shows good biocompatibility as there are no changes in mice’s body weight. When administering peptide-siRNA-DOX, tumor growth is inhibited the most (about three times). These results above prove the sequence to be a good candidate for gene therapy and drug delivery.
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