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Bennett ZT, Huang G, Dellinger MT, Sumer BD, Gao J. Stepwise Ultra-pH-Sensitive Micelles Overcome a p Ka Barrier for Systemic Lymph Node Delivery. ACS NANO 2024; 18:16632-16647. [PMID: 38900677 DOI: 10.1021/acsnano.4c00876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
While local nanoparticle delivery to lymph nodes is well studied, there are few design criteria for intravenous delivery to the entire lymph node repertoire. In this study, we investigated the effect of NP pH transition on lymph node targeting by employing a series of ultra-pH-sensitive (UPS) polymeric micelles. The UPS library responds to pH thresholds (pKa 6.9, 6.2, and 5.3) over a range of physiological pH. We observed a dependence of intravenous lymph node targeting on micelle pH transition. UPS6.9 (subscript indicates pKa) shows poor lymph node delivery, while UPS5.3 delivers efficiently to lymph node sets. We investigated targeting mechanisms of UPS5.3, observing an accumulation among lymph node lymphatics and a dependence on lymph node-resident macrophages. To overcome the pH-threshold barrier, which limits UPS6.9, we rationally designed a nanoparticle coassembly of UPS6.9 with UPS5.3, called HyUPS. The HyUPS micelle retains the constitutive pH transitions of each polymer, showing stepwise responses to discrete pH thresholds. We demonstrate that HyUPS improves UPS6.9 delivery to lymph nodes, extending this platform for disease detection of lymph node metastasis.
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Affiliation(s)
- Zachary T Bennett
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
- Department of Biomedical Engineering, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
| | - Gang Huang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
| | - Michael T Dellinger
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
- Department of Surgery, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
| | - Baran D Sumer
- Department of Otolaryngology, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
| | - Jinming Gao
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
- Department of Biomedical Engineering, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
- Department of Otolaryngology, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
- Department of Cell Biology, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
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2
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Li S, Meng C, Hao Q, Zhou R, Dai L, Guo Y, Zhao S, Zhou X, Lou C, Xu J, Xu P, Yang J, Ding Y, Lv Y, Han S, Li S, Li J, Kang H, Xiao Z, Tan M, Ma X, Wu H. "On/off"-switchable crosslinked PTX-nanoformulation with improved precise delivery for NSCLC brain metastases and restrained adverse reaction over nab-PTX. Biomaterials 2024; 307:122537. [PMID: 38492523 DOI: 10.1016/j.biomaterials.2024.122537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/29/2024] [Accepted: 03/14/2024] [Indexed: 03/18/2024]
Abstract
Non-small cell lung cancer (NSCLC) brain metastases present a significant treatment challenge due to limited drug delivery efficiency and severe adverse reactions. In this study, we address these challenges by designing a "on/off" switchable crosslinked paclitaxel (PTX) nanocarrier, BPM-PD, with novel ultra-pH-sensitive linkages (pH 6.8 to 6.5). BPM-PD demonstrates a distinct "on/off" switchable release of the anti-cancer drug paclitaxel (PTX) in response to the acidic extratumoral microenvironment. The "off" state of BPM-PD@PTX effectively prevents premature drug release in the blood circulation, blood-brain barrier (BBB)/blood-tumor barrier (BTB), and normal brain tissue, surpassing the clinical PTX-nanoformulation (nab-PTX). Meanwhile, the "on" state facilitates precise delivery to NSCLC brain metastases cells. Compared to nab-PTX, BPM-PD@PTX demonstrates improved therapeutic efficacy with a reduced tumor area (only 14.6%) and extended survival duration, while mitigating adverse reactions (over 83.7%) in aspartate aminotransferase (AST) and alanine aminotransferase (ALT), offering a promising approach for the treatment of NSCLC brain metastases. The precise molecular switch also helped to increase the PTX maximum tolerated dose from 25 mg/kg to 45 mg/kg This research contributes to the field of cancer therapeutics and has significant implications for improving the clinical outcomes of NSCLC patients.
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Affiliation(s)
- Shuaijun Li
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China; School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Caiting Meng
- School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Qian Hao
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Ruina Zhou
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Luyao Dai
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Yucheng Guo
- School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Sitong Zhao
- School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Xin Zhou
- School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Chunju Lou
- School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Ji Xu
- School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Peng Xu
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Jinfan Yang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
| | - Yifan Ding
- School of Pharmacy, Health Science Center of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Yanni Lv
- School of Pharmacy, Health Science Center of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Shengli Han
- School of Pharmacy, Health Science Center of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Shuai Li
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Jing Li
- Xijing Hypertrophic Cardiomyopathy Center, Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xian, Shaanxi, China
| | - Huafeng Kang
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Zhengtao Xiao
- School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Mingqian Tan
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian, Liaoning, 116034, China
| | - Xiaobin Ma
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China; School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China.
| | - Hao Wu
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China; School of Basic Medical Sciences, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China.
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3
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Feng Q, Bennett Z, Grichuk A, Pantoja R, Huang T, Faubert B, Huang G, Chen M, DeBerardinis RJ, Sumer BD, Gao J. Severely polarized extracellular acidity around tumour cells. Nat Biomed Eng 2024:10.1038/s41551-024-01178-7. [PMID: 38438799 DOI: 10.1038/s41551-024-01178-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 01/31/2024] [Indexed: 03/06/2024]
Abstract
Extracellular pH impacts many molecular, cellular and physiological processes, and hence is tightly regulated. Yet, in tumours, dysregulated cancer cell metabolism and poor vascular perfusion cause the tumour microenvironment to become acidic. Here by leveraging fluorescent pH nanoprobes with a transistor-like activation profile at a pH of 5.3, we show that, in cancer cells, hydronium ions are excreted into a small extracellular region. Such severely polarized acidity (pH <5.3) is primarily caused by the directional co-export of protons and lactate, as we show for a diverse panel of cancer cell types via the genetic knockout or inhibition of monocarboxylate transporters, and also via nanoprobe activation in multiple tumour models in mice. We also observed that such spot acidification in ex vivo stained snap-frozen human squamous cell carcinoma tissue correlated with the expression of monocarboxylate transporters and with the exclusion of cytotoxic T cells. Severely spatially polarized tumour acidity could be leveraged for cancer diagnosis and therapy.
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Affiliation(s)
- Qiang Feng
- Department of Biomedical Engineering, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Zachary Bennett
- Department of Biomedical Engineering, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Anthony Grichuk
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Raymundo Pantoja
- Department of Biomedical Engineering, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Tongyi Huang
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Brandon Faubert
- Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Gang Huang
- Department of Biomedical Engineering, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Mingyi Chen
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ralph J DeBerardinis
- Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Baran D Sumer
- Department of Otolaryngology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jinming Gao
- Department of Biomedical Engineering, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Department of Otolaryngology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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4
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Tao F, Han Q, Deng M, Miao S, Yang P. pH-Responsive Protein Conformation Transistor. Angew Chem Int Ed Engl 2024; 63:e202310879. [PMID: 37807603 DOI: 10.1002/anie.202310879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/05/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Abstract
Analogous to electronic transistors, transistor-like responsive materials undergo sharp structural transitions in response to a very narrow range of microenvironment signals. This kind of material is typically limited to synthetic polymer-derived nanoscale assembly or disassembly and has profound implications for modern high-tech applications. Herein, we evolve this system from synthetic polymers to biopolymers and extend the corresponding assembly scale from the nanoscale to meso/macro-scale. We develop unique protein nanocrystals with core-shell structures through a two-step nucleation process. The protein nanocrystals exhibit exceptional transistor-like pH-responsive mesoscale assembly through the formation of inter-particle β-sheet linkers. This allows ultrasensitive cross-linking behavior, such as self-coacervation at a water/water interface, ultrafast gelation in seconds, and ultrasensitive swelling for detection of basic vapors at extremely low concentrations. This breakthrough has great promise for broader applications such as drug encapsulation and delivery, biosensing, cytomimetic materials, and microfluidic chemistry.
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Affiliation(s)
- Fei Tao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, school of Chemistry and Chemical Engineering, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Qian Han
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, school of Chemistry and Chemical Engineering, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Miaoran Deng
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, school of Chemistry and Chemical Engineering, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Shuting Miao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, school of Chemistry and Chemical Engineering, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Peng Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, school of Chemistry and Chemical Engineering, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
- Xi'an Key Laboratory of Polymeric Soft Matter, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
- International Joint Research Center on Functional Fiber and Soft Smart Textile, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
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5
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Wang M, Bennett ZT, Singh P, Feng Q, Wilhelm J, Huang G, Gao J. Elucidation of Protonation Cooperativity of a STING-Activating Polymer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2305255. [PMID: 37541432 PMCID: PMC10838353 DOI: 10.1002/adma.202305255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/23/2023] [Indexed: 08/06/2023]
Abstract
Stimuli-responsive nanomaterials have the potential to improve the performance and overcome existing barriers of conventional nanotherapeutics. Molecular cooperativity design in stimuli-responsive nanomedicine can amplify physiological signals, enabling a cooperative response for improved diagnostic and therapeutic precision. Previously, this work reported an ultra-pH-sensitive polymer, PEG-b-PC7A, that possesses innate immune activating properties by binding to the stimulator of interferon genes (STING) through polyvalent phase condensation. This interaction enhances STING activation and synergizes with the endogenous STING ligand for robust cancer immunotherapy. Despite its successes in innate immune activation, the fundamental physicochemical and pH-responsive properties of PC7A require further investigation. Here, this study elucidates the protonation cooperativity driven by the phase transition of PC7A copolymer. The highly cooperative system displays an "all-or-nothing" proton distribution between highly charged unimer (all) and neutral micelle (nothing) states without gradually protonated intermediates. The binary protonation behavior is further illustrated in pH-precision-controlled release of a representative anticancer drug, β-lapachone, by PC7A micelles over a noncooperative PE5A polymer. Furthermore, the bimodal distribution of protons is represented by a high Hill coefficient (nH > 9), featuring strong positive cooperativity. This study highlights the nanoscale pH cooperativity of an immune activating polymer, providing insights into the physicochemical characterization and design parameters for future nanotherapeutics development.
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Affiliation(s)
- Maggie Wang
- Department of Biomedical Engineering, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Zachary T Bennett
- Department of Biomedical Engineering, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Parnavi Singh
- Department of Biomedical Engineering, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Qiang Feng
- Department of Biomedical Engineering, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jonathan Wilhelm
- Department of Biomedical Engineering, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Gang Huang
- Department of Biomedical Engineering, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jinming Gao
- Department of Biomedical Engineering, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
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6
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Geng Y, Yuan Y, Bao Y, Huang S, Wang X, Huang L, She C, Gong X, Xiong M. pH Window for High Selectivity of Ionizable Antimicrobial Polymers toward Bacteria. ACS APPLIED MATERIALS & INTERFACES 2023; 15:21781-21791. [PMID: 37115169 DOI: 10.1021/acsami.2c23240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Antimicrobial polymers exhibit great potential for treating drug-resistant bacteria; however, designing antimicrobial polymers that can selectively kill bacteria and cause relatively low toxicity to normal tissues/cells remains a key challenge. Here, we report a pH window for ionizable polymers that exhibit high selectivity toward bacteria. Ionizable polymer PC6A showed the greatest selectivity (131.6) at pH 7.4, exhibiting low hemolytic activity and high antimicrobial activity against bacteria, whereas a very high or low protonation degree (PD) produced relatively low selectivity (≤35.6). Bactericidal mechanism of PC6A primarily comprised membrane lysis without inducing drug resistance even after consecutive incubation for 32 passages. Furthermore, PC6A demonstrated synergistic effects in combination with antibiotics at pH 7.4. Hence, this study provides a strategy for designing selective antimicrobial polymers.
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Affiliation(s)
- Yuanyuan Geng
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, P. R. China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P. R. China
| | - Yueling Yuan
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, P. R. China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P. R. China
| | - Yan Bao
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510300, P. R. China
| | - Songyin Huang
- Biotherapy Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, P. R. China
- Department of Clinical Laboratory, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, P. R. China
| | - Xiaochuan Wang
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, P. R. China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P. R. China
| | - Liangqi Huang
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, P. R. China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P. R. China
| | - Chun She
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510300, P. R. China
| | - Xiangjun Gong
- Faculty of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510641, P. R. China
| | - Menghua Xiong
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, P. R. China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, and Innovation Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P. R. China
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7
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Zhao P, Li H, Bu W. A Forward Vision for Chemodynamic Therapy: Issues and Opportunities. Angew Chem Int Ed Engl 2023; 62:e202210415. [PMID: 36650984 DOI: 10.1002/anie.202210415] [Citation(s) in RCA: 64] [Impact Index Per Article: 64.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Indexed: 01/19/2023]
Abstract
Since the insight to fuse Fenton chemistry and nanomedicine into cancer therapy, great signs of progress have been made in the field of chemodynamic therapy (CDT). However, the exact mechanism of CDT is obscured by the unique tumor chemical environment and inevitable nanoparticle-cell interactions, thus impeding further development. In this Scientific Perspective, the significance of CDT is clarified, the complex mechanism is deconstructed into primitive chemical and biological interactions, and the mechanism research directions based on the chemical kinetics and biological signaling pathways are discussed in detail. Moreover, beneficial outlooks are presented to enlighten the evolution of next-generation CDT. Hopefully, this Scientific Perspective can inspire new ideas and advances for CDT and provide a reference for breaking down the interdisciplinary barriers in the field of nanomedicine.
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Affiliation(s)
- Peiran Zhao
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P.R. China
| | - Huiyan Li
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P.R. China
| | - Wenbo Bu
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P.R. China
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8
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Gao X, Lei G, Wang B, Deng Z, Karges J, Xiao H, Tan D. Encapsulation of Platinum Prodrugs into PC7A Polymeric Nanoparticles Combined with Immune Checkpoint Inhibitors for Therapeutically Enhanced Multimodal Chemotherapy and Immunotherapy by Activation of the STING Pathway. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205241. [PMID: 36504435 PMCID: PMC9896041 DOI: 10.1002/advs.202205241] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Tumor immunotherapy has emerged as one of the most promising therapeutic methods to treat cancer. Despite its clinical application, the immunosuppressive tumor microenvironment compromises the therapeutic efficiency of this technique. To overcome this limitation, many research efforts have been devoted to the development of agents that reprogram the immunosuppressive tumor microenvironment through novel mechanisms. Over the last decade, compounds that intervene through the immunogenic stimulator of interferon genes (STING) pathway have emerged with potential for clinical development. Herein, the encapsulation of chemotherapeutic platinum complexes with a polymer with a cyclic seven-membered ring (PC7A)-based polymer into pH-responsive nanoparticles for multimodal therapeutically enhanced chemotherapy and immunotherapy is presented. This study represents the first nanomaterial with a dual activation mechanism of the STING pathway through DNA fragmentation as well as PC7A binding. The combination of these nanoparticles with immune checkpoint inhibitors demonstrates to nearly fully eradicate a colorectal tumor inside the mouse model by chemotherapy and immunotherapy using the STING pathway.
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Affiliation(s)
- Xiangjie Gao
- Affiliated Hospital of Xiangnan UniversityChenzhouHunan Province423000China
- Xiangnan UniversityChenzhouHunan Province423000China
- Key Laboratory of Medical Imaging and Artificial Intelligence of Hunan ProvinceChenzhouHunan Province423000China
- Hunan Engineering Research Center of Advanced Embedded Computing and Intelligent Medical Systems, Xiangnan UniversityChenzhouHunan Province423000China
| | - Guanxiong Lei
- Affiliated Hospital of Xiangnan UniversityChenzhouHunan Province423000China
- Xiangnan UniversityChenzhouHunan Province423000China
- Key Laboratory of Medical Imaging and Artificial Intelligence of Hunan ProvinceChenzhouHunan Province423000China
- Hunan Engineering Research Center of Advanced Embedded Computing and Intelligent Medical Systems, Xiangnan UniversityChenzhouHunan Province423000China
| | - Bin Wang
- Beijing National Laboratory for Molecular SciencesState Key Laboratory of Polymer Physics and ChemistryInstitute of ChemistryChinese Academy of SciencesBeijing100190China
| | - Zhong Deng
- Affiliated Hospital of Xiangnan UniversityChenzhouHunan Province423000China
- Xiangnan UniversityChenzhouHunan Province423000China
- Key Laboratory of Medical Imaging and Artificial Intelligence of Hunan ProvinceChenzhouHunan Province423000China
- Hunan Engineering Research Center of Advanced Embedded Computing and Intelligent Medical Systems, Xiangnan UniversityChenzhouHunan Province423000China
| | - Johannes Karges
- Faculty of Chemistry and BiochemistryRuhr‐University BochumUniversitätsstrasse 15044780BochumGermany
| | - Haihua Xiao
- Beijing National Laboratory for Molecular SciencesState Key Laboratory of Polymer Physics and ChemistryInstitute of ChemistryChinese Academy of SciencesBeijing100190China
| | - Donghui Tan
- Affiliated Hospital of Xiangnan UniversityChenzhouHunan Province423000China
- Xiangnan UniversityChenzhouHunan Province423000China
- Key Laboratory of Medical Imaging and Artificial Intelligence of Hunan ProvinceChenzhouHunan Province423000China
- Hunan Engineering Research Center of Advanced Embedded Computing and Intelligent Medical Systems, Xiangnan UniversityChenzhouHunan Province423000China
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9
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Zhao P, Li H, Bu W. A Forward Vision for Chemodynamic Therapy: Issues and Opportunities. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202210415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Peiran Zhao
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 P.R. China
| | - Huiyan Li
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 P.R. China
| | - Wenbo Bu
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 P.R. China
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10
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Zhang Y, Ranaei Pirmardan E, Barakat A, Naseri M, Hafezi-Moghadam A. Nanoarchitectonics for Photo-Controlled Intracellular Drug Release in Immune Modulation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:42976-42987. [PMID: 36103264 DOI: 10.1021/acsami.2c12440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Local stimuli differentiate monocytes into M2-like macrophages that mechanistically drive the pathologies in cancer and age-related macular degeneration (AMD). A photo-controlled nanodrug that halts macrophage polarization through Rho-associated kinase (ROCK) inhibition was developed. A small-molecule ROCK inhibitor, fasudil, was conjugated to a photo-responsive group and a short poly(ethylene glycol) (PEG) chain. This resulted in the novel amphiphilic prodrug, PEG-2-(4'-(di(prop-2-yn-1-yl)amino)-4-nitro-[1,1'-biphenyl]-yl)propan-1-ol (PANBP)-Fasudil, that spontaneously formed micelles. Ultraviolet (UV) irradiation of PEG-PANBP-Fasudil nanoparticles rapidly released fasudil. For visualization of linker degradation, a reporter nanoprobe was synthesized, in which 2-Me-4-OMe TokyoGreen (TG), a fluorophore that does not fluoresce in conjugation, was incorporated. Irradiation of nanoprobe-laden monocytes activated the reporter fluorophore. Cytokine stimulation differentiated monocytes into macrophages, while UV irradiation prevented polarization of PEG-PANBP-Fasudil nanoparticle-laden monocytes. Nanoarchitectonics-based design opens new possibilities for intracellular drug delivery and precise spatiotemporal immune cell modulation toward the development of new therapies.
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Affiliation(s)
- Yuanlin Zhang
- Molecular Biomarkers Nano-Imaging Laboratory, Brigham and Women's Hospital, and Department of Radiology, Harvard Medical School, 75 Francis St., Thorn Research Building, Boston, Massachusetts 02115, United States
| | - Ehsan Ranaei Pirmardan
- Molecular Biomarkers Nano-Imaging Laboratory, Brigham and Women's Hospital, and Department of Radiology, Harvard Medical School, 75 Francis St., Thorn Research Building, Boston, Massachusetts 02115, United States
| | - Aliaa Barakat
- Molecular Biomarkers Nano-Imaging Laboratory, Brigham and Women's Hospital, and Department of Radiology, Harvard Medical School, 75 Francis St., Thorn Research Building, Boston, Massachusetts 02115, United States
| | - Marzieh Naseri
- Molecular Biomarkers Nano-Imaging Laboratory, Brigham and Women's Hospital, and Department of Radiology, Harvard Medical School, 75 Francis St., Thorn Research Building, Boston, Massachusetts 02115, United States
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, Massachusetts 02111, United States
| | - Ali Hafezi-Moghadam
- Molecular Biomarkers Nano-Imaging Laboratory, Brigham and Women's Hospital, and Department of Radiology, Harvard Medical School, 75 Francis St., Thorn Research Building, Boston, Massachusetts 02115, United States
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11
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Mahajan S, Tang T. Polyethylenimine-DNA Nanoparticles under Endosomal Acidification and Implication to Gene Delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8382-8397. [PMID: 35759612 DOI: 10.1021/acs.langmuir.2c00952] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Non-viral gene delivery using polyethylenimine (PEI) has shown tremendous promise as a therapeutic technique. Through the formation of nanoparticles (NPs), PEIs protect genetic material such as DNA from degradation. Escape of the NPs from endosomes and lysosomes is facilitated by PEI's buffering capacity over a wide range of pH. However, little is known about the effects of endosomal acidification on the morphology of the NPs. In this work, large-scale coarse-grained simulations performed to mimic endosomal acidification reveal that NPs undergo a resizing process that is highly dependent on the N/P ratio (ratio of PEI nitrogen to DNA phosphate) at which they are prepared. With a low N/P ratio, NPs further aggregate after endosomal acidification, whereas with a high N/P ratio they dissociate. The mechanisms behind such NP resizing and its consequences on endosomal escape and nuclear trafficking are discussed. Based on the findings, suggestions are made on the PEI architecture that may enhance NP dissociation driven by endosomal acidification.
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Affiliation(s)
- Subhamoy Mahajan
- Department of Mechanical Engineering, University of Alberta, Edmonton T6G 2R3, Alberta, Canada
| | - Tian Tang
- Department of Mechanical Engineering, University of Alberta, Edmonton T6G 2R3, Alberta, Canada
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12
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Chen B, Yan Y, Yang Y, Cao G, Wang X, Wang Y, Wan F, Yin Q, Wang Z, Li Y, Wang L, Xu B, You F, Zhang Q, Wang Y. A pyroptosis nanotuner for cancer therapy. NATURE NANOTECHNOLOGY 2022; 17:788-798. [PMID: 35606443 DOI: 10.1038/s41565-022-01125-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/23/2022] [Indexed: 05/28/2023]
Abstract
Pyroptosis is a gasdermin-mediated programmed necrosis that occurs via membrane perforation and that can be exploited for biomedical applications in cancer therapy. However, inducing specific pyroptotic cancer cell death while sparing normal cells is challenging. Here, we report an acid-activatable nanophotosensitizer library that can be used to spatiotemporally target distinct stages of endosomal maturation, enabling tunable cellular pyroptosis. Specific activation of phospholipase C signalling transduction in early endosomes triggers gasdermin-E-mediated pyroptosis, which is dramatically reduced when acid-activatable nanophotosensitizers are transported into late endosomes/lysosomes. This nanotuner platform induces pyroptotic cell death with up to 40-fold tunability in various gasdermin-E-positive human cancers, resulting in enhanced anti-tumour efficacy and minimized systemic side effects. This study offers new insights into how to engineer nanomedicines with tunable pyroptosis activity through specific targeting of distinct endocytic signalling for biomedical applications.
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Affiliation(s)
- Binlong Chen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yue Yan
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Ye Yang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Guang Cao
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xiao Wang
- Institute of Systems Biomedicine, Department of Immunology, Beijing Key Laboratory of Tumour Systems Biology, Peking University Health Science Center, Beijing, China
| | - Yaoqi Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Fangjie Wan
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Qingqing Yin
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Zenghui Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yunfei Li
- Institute of Systems Biomedicine, Department of Immunology, Beijing Key Laboratory of Tumour Systems Biology, Peking University Health Science Center, Beijing, China
| | - Letong Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Bo Xu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Fuping You
- Institute of Systems Biomedicine, Department of Immunology, Beijing Key Laboratory of Tumour Systems Biology, Peking University Health Science Center, Beijing, China.
| | - Qiang Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China.
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing, China.
| | - Yiguang Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China.
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing, China.
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13
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Sun Y, Gong L, Yin Y, Zhang L, Sun Q, Feng K, Cui Y, Zhang Q, Zhang X, Deng X, You F, Lu D, Lin Z. A Gradient pH-Sensitive Polymer-Based Antiviral Strategy via Viroporin-Induced Membrane Acidification. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2109580. [PMID: 35229371 DOI: 10.1002/adma.202109580] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/19/2022] [Indexed: 06/14/2023]
Abstract
Lipid-membrane-targeting strategies hold great promise to develop broad-spectrum antivirals. However, it remains a big challenge to identify novel membrane-based targets of viruses and virus-infected cells for development of precision targeted approaches. Here, it is discovered that viroporins, viral-encoded ion channels, which have been reported to mediate release of hydrogen ions, trigger membrane acidification of virus-infected cells. Through development of a fine-scale library of gradient pH-sensitive (GPS) polymeric nanoprobes, the cellular membrane pH transitions are measured from pH 6.8-7.1 (uninfection) to pH 6.5-6.8 (virus-infection). In response to the subtle pH alterations, the GPS polymer with sharp response at pH 6.8 (GPS6.8 ) selectively binds to virus-infected cell membranes or the viral envelope, and even completely disrupts the viral envelope. Accordingly, GPS6.8 treatment exerts suppressive effects on a wide variety of viruses including SARS-CoV-2 through triggering viral-envelope lysis rather than affecting immune pathway or viability of host cells. Murine viral-infection models exhibit that supplementation of GPS6.8 decreases viral titers and ameliorates inflammatory damage. Thus, the gradient pH-sensitive nanotechnology offers a promising strategy for accurate detection of biological pH environments and robust interference with viruses.
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Affiliation(s)
- Yizhe Sun
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Lidong Gong
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Yue Yin
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Lei Zhang
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Qiangming Sun
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming, 65018, P. R. China
| | - Kai Feng
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming, 65018, P. R. China
| | - Yimin Cui
- Department of Pharmacy Administration and Clinical Pharmacy, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Qiang Zhang
- Department of Pharmacy Administration and Clinical Pharmacy, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Xuehui Zhang
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Xuliang Deng
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Fuping You
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Dan Lu
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Zhiqiang Lin
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
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14
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Kong W, Liu Z, Sun M, Liu H, Kong C, Ma J, Wang R, Qian F. Synergistic autophagy blockade and VDR signaling activation enhance stellate cell reprogramming in pancreatic ductal adenocarcinoma. Cancer Lett 2022; 539:215718. [DOI: 10.1016/j.canlet.2022.215718] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/27/2022] [Accepted: 04/27/2022] [Indexed: 01/18/2023]
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15
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Quantitative phosphoproteomic analyses identify STK11IP as a lysosome-specific substrate of mTORC1 that regulates lysosomal acidification. Nat Commun 2022; 13:1760. [PMID: 35365663 PMCID: PMC8976005 DOI: 10.1038/s41467-022-29461-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 03/14/2022] [Indexed: 01/02/2023] Open
Abstract
The evolutionarily conserved serine/threonine kinase mTORC1 is a central regulator of cell growth and proliferation. mTORC1 is activated on the lysosome surface. However, once mTORC1 is activated, it is unclear whether mTORC1 phosphorylates local lysosomal proteins to regulate specific aspects of lysosomal biology. Through cross-reference analyses of the lysosome proteome with the mTORC1-regulated phosphoproteome, we identify STK11IP as a lysosome-specific substrate of mTORC1. mTORC1 phosphorylates STK11IP at Ser404. Knockout of STK11IP leads to a robust increase of autophagy flux. Dephosphorylation of STK11IP at Ser404 represses the role of STK11IP as an autophagy inhibitor. Mechanistically, STK11IP binds to V-ATPase, and regulates the activity of V-ATPase. Knockout of STK11IP protects mice from fasting or Methionine/Choline-Deficient Diet (MCD)-induced fatty liver. Thus, our study demonstrates that STK11IP phosphorylation represents a mechanism for mTORC1 to regulate lysosomal acidification and autophagy, and points to STK11IP as a promising therapeutic target for the amelioration of diseases with aberrant autophagy signaling.
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16
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Xue Y, Bai H, Peng B, Tieu T, Jiang J, Hao S, Li P, Richardson M, Baell J, Thissen H, Cifuentes A, Li L, Voelcker NH. Porous Silicon Nanocarriers with Stimulus-Cleavable Linkers for Effective Cancer Therapy. Adv Healthc Mater 2022; 11:e2200076. [PMID: 35306736 DOI: 10.1002/adhm.202200076] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/19/2022] [Indexed: 12/13/2022]
Abstract
Porous silicon nanoparticles (pSiNPs) are widely utilized as drug carriers due to their excellent biocompatibility, large surface area, and versatile surface chemistry. However, the dispersion in pore size and biodegradability of pSiNPs arguably have hindered the application of pSiNPs for controlled drug release. Here, a step-changing solution to this problem is described involving the design, synthesis, and application of three different linker-drug conjugates comprising anticancer drug doxorubicin (DOX) and different stimulus-cleavable linkers (SCLs) including the photocleavable linker (ortho-nitrobenzyl), pH-cleavable linker (hydrazone), and enzyme-cleavable linker (β-glucuronide). These SCL-DOX conjugates are covalently attached to the surface of pSiNP via copper (I)-catalyzed alkyne-azide cycloaddition (CuAAC, i.e., click reaction) to afford pSiNP-SCL-DOXs. The mass loading of the covalent conjugation approach for pSiNP-SCL-DOX reaches over 250 µg of DOX per mg of pSiNPs, which is notably twice the mass loading achieved by noncovalent loading. Moreover, the covalent conjugation between SCL-DOX and pSiNPs endows the pSiNPs with excellent stability and highly controlled release behavior. When tested in both in vitro and in vivo tumor models, the pSiNP-SCL-DOXs induces excellent tumor growth inhibition.
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Affiliation(s)
- Yufei Xue
- Frontiers Science Center for Flexible Electrons Xi'an institute of Flexible Electrons (IFE) and Xi'an institute of Biomedical Materials and Engineering Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
- Drug Delivery, Disposition and Dynamics Monash institute of Pharmaceutical Sciences Monash University Parkville Victoria 3052 Australia
| | - Hua Bai
- Frontiers Science Center for Flexible Electrons Xi'an institute of Flexible Electrons (IFE) and Xi'an institute of Biomedical Materials and Engineering Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Bo Peng
- Frontiers Science Center for Flexible Electrons Xi'an institute of Flexible Electrons (IFE) and Xi'an institute of Biomedical Materials and Engineering Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
- Drug Delivery, Disposition and Dynamics Monash institute of Pharmaceutical Sciences Monash University Parkville Victoria 3052 Australia
| | - Terence Tieu
- Drug Delivery, Disposition and Dynamics Monash institute of Pharmaceutical Sciences Monash University Parkville Victoria 3052 Australia
| | - Jiamin Jiang
- Frontiers Science Center for Flexible Electrons Xi'an institute of Flexible Electrons (IFE) and Xi'an institute of Biomedical Materials and Engineering Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Shiping Hao
- Frontiers Science Center for Flexible Electrons Xi'an institute of Flexible Electrons (IFE) and Xi'an institute of Biomedical Materials and Engineering Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Panpan Li
- Frontiers Science Center for Flexible Electrons Xi'an institute of Flexible Electrons (IFE) and Xi'an institute of Biomedical Materials and Engineering Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Mark Richardson
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Clayton Victoria 3168 Australia
| | - Jonathan Baell
- Drug Delivery, Disposition and Dynamics Monash institute of Pharmaceutical Sciences Monash University Parkville Victoria 3052 Australia
| | - Helmut Thissen
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Clayton Victoria 3168 Australia
| | - Anna Cifuentes
- Drug Delivery, Disposition and Dynamics Monash institute of Pharmaceutical Sciences Monash University Parkville Victoria 3052 Australia
| | - Lin Li
- Frontiers Science Center for Flexible Electrons Xi'an institute of Flexible Electrons (IFE) and Xi'an institute of Biomedical Materials and Engineering Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Nicolas H. Voelcker
- Frontiers Science Center for Flexible Electrons Xi'an institute of Flexible Electrons (IFE) and Xi'an institute of Biomedical Materials and Engineering Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
- Drug Delivery, Disposition and Dynamics Monash institute of Pharmaceutical Sciences Monash University Parkville Victoria 3052 Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Clayton Victoria 3168 Australia
- Melbourne Centre for Nanofabrication Victorian Node of the Australian National Fabrication Facility Clayton Victoria 3168 Australia
- Department of Materials Science and Engineering Monash University Clayton Victoria 3168 Australia
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17
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Wang J, Yu Q, Li XL, Zhao XL, Chen HY, Xu JJ. A Reversible Plasmonic Nanoprobe for Dynamic Imaging of Intracellular pH during Endocytosis. Chem Sci 2022; 13:4893-4901. [PMID: 35655891 PMCID: PMC9067569 DOI: 10.1039/d2sc01069k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/02/2022] [Indexed: 11/21/2022] Open
Abstract
Understanding the pH evolution during endocytosis is essential for our comprehension of the fundamental processes of biology as well as effective nanotherapeutic design. Herein, we constructed a plasmonic Au@PANI core-shell...
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Affiliation(s)
- Jin Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Qiao Yu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Xiang-Ling Li
- College of Life Science and Pharmaceutical Engineering, Nanjing Tech University Nanjing 211816 China
| | - Xue-Li Zhao
- College of Chemistry and Molecular Engineering, Zhengzhou University Zhengzhou 450001 China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
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18
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Qu J, Guillory D, Cheah P, Tian B, Zheng J, Liu Y, Cates C, Janorkar AV, Zhao Y. Synthesis of Biomimetic Melanin-Like Multifunctional Nanoparticles for pH Responsive Magnetic Resonance Imaging and Photothermal Therapy. NANOMATERIALS 2021; 11:nano11082107. [PMID: 34443944 PMCID: PMC8400264 DOI: 10.3390/nano11082107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 08/14/2021] [Accepted: 08/17/2021] [Indexed: 01/01/2023]
Abstract
The design and development of multifunctional nanoparticles have attracted great interest in biomedical research. This study aims to prepare pH-responsive melanin-like nanoparticles for T1-weighted magnetic resonance imaging (MRI) and photothermal therapy. The new multifunctional nanoparticles (amino-Fe-PDANPs) are synthesized by copolymerization of dopamine and its derivative amino-N-[2-(diethylamino) ethyl]-3,4-dihydroxy-benzenepropanamide (N-Dopa) at room temperature. The size of nanoparticles can be controlled by NaOH concentration. The incorporation of N-Dopa is characterized by NMR and FT-IR. From transmission electron microscopy (TEM), the nanoparticles exhibit excellent dispersion stability in water and are spherical in shape. The MRI measurement has demonstrated that amino-Fe-PDANPs have a significant signal enhancement in responding to the acidic solution. Confirmed by the photothermal study, the nanoparticles exhibit a high photothermal conversion efficiency. The melanin-like multifunctional nanoparticles integrate both diagnosis and therapeutic functionalities, indicating the potential for theranostic application.
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Affiliation(s)
- Jing Qu
- Department of Chemistry, Physics and Atmospheric Science, Jackson State University, Jackson, MS 39217, USA; (J.Q.); (D.G.); (P.C.); (B.T.)
| | - Devin Guillory
- Department of Chemistry, Physics and Atmospheric Science, Jackson State University, Jackson, MS 39217, USA; (J.Q.); (D.G.); (P.C.); (B.T.)
| | - Pohlee Cheah
- Department of Chemistry, Physics and Atmospheric Science, Jackson State University, Jackson, MS 39217, USA; (J.Q.); (D.G.); (P.C.); (B.T.)
| | - Bin Tian
- Department of Chemistry, Physics and Atmospheric Science, Jackson State University, Jackson, MS 39217, USA; (J.Q.); (D.G.); (P.C.); (B.T.)
| | - Jie Zheng
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA; (J.Z.); (Y.L.)
| | - Yongjian Liu
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA; (J.Z.); (Y.L.)
| | - Courtney Cates
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, MS 39216, USA; (C.C.); (A.V.J.)
| | - Amol V. Janorkar
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, MS 39216, USA; (C.C.); (A.V.J.)
| | - Yongfeng Zhao
- Department of Chemistry, Physics and Atmospheric Science, Jackson State University, Jackson, MS 39217, USA; (J.Q.); (D.G.); (P.C.); (B.T.)
- Correspondence:
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19
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Bennett ZT, Li S, Sumer BD, Gao J. Polyvalent design in the cGAS-STING pathway. Semin Immunol 2021; 56:101580. [PMID: 34920941 PMCID: PMC8792294 DOI: 10.1016/j.smim.2021.101580] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 12/06/2021] [Accepted: 12/09/2021] [Indexed: 01/02/2023]
Abstract
Polyvalent interactions mediate the formation of higher-order macromolecular assemblies to improve the sensitivity, specificity, and temporal response of biological signals. In host defense, innate immune pathways recognize danger signals to alert host of insult or foreign invasion, while limiting aberrant activation from auto-immunity and cellular senescence. Of recent attention are the unique higher-order assemblies in the cGAS-STING pathway. Natural stimulation of cGAS enzymes by dsDNA induces phase separation and enzymatic activation for switchlike production of cGAMP. Subsequent binding of cGAMP to STING induces oligomerization of STING molecules, offering a scaffold for kinase assembly and signaling transduction. Additionally, the discovery of PC7A, a synthetic polymer which activates STING through a non-canonical biomolecular condensation, illustrates the engineering design of agonists by polyvalency principles. Herein, we discuss a mechanistic and functional comparison of natural and synthetic agonists to advance our understanding in STING signaling and highlight the principles of polyvalency in innate immune activation. The combination of exogenous cGAMP along with synthetic PC7A stimulation of STING offers a synergistic strategy in spatiotemporal orchestration of the immune milieu for a safe and effective immunotherapy against cancer.
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Affiliation(s)
- Zachary T Bennett
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Suxin Li
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Baran D Sumer
- Department of Otolaryngology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jinming Gao
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Otolaryngology, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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20
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Yin Q, Pan A, Chen B, Wang Z, Tang M, Yan Y, Wang Y, Xia H, Chen W, Du H, Chen M, Fu C, Wang Y, Yuan X, Lu Z, Zhang Q, Wang Y. Quantitative imaging of intracellular nanoparticle exposure enables prediction of nanotherapeutic efficacy. Nat Commun 2021; 12:2385. [PMID: 33888701 PMCID: PMC8062465 DOI: 10.1038/s41467-021-22678-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/23/2021] [Indexed: 12/14/2022] Open
Abstract
Nanoparticle internalisation is crucial for the precise delivery of drug/genes to its intracellular targets. Conventional quantification strategies can provide the overall profiling of nanoparticle biodistribution, but fail to unambiguously differentiate the intracellularly bioavailable particles from those in tumour intravascular and extracellular microenvironment. Herein, we develop a binary ratiometric nanoreporter (BiRN) that can specifically convert subtle pH variations involved in the endocytic events into digitised signal output, enabling the accurately quantifying of cellular internalisation without introducing extracellular contributions. Using BiRN technology, we find only 10.7-28.2% of accumulated nanoparticles are internalised into intracellular compartments with high heterogeneity within and between different tumour types. We demonstrate the therapeutic responses of nanomedicines are successfully predicted based on intracellular nanoparticle exposure rather than the overall accumulation in tumour mass. This nonlinear optical nanotechnology offers a valuable imaging tool to evaluate the tumour targeting of new nanomedicines and stratify patients for personalised cancer therapy.
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Affiliation(s)
- Qingqing Yin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Anni Pan
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Binlong Chen
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Zenghui Wang
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Mingmei Tang
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yue Yan
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yaoqi Wang
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Heming Xia
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Wei Chen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Hongliang Du
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Meifang Chen
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Chuanxun Fu
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yanni Wang
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China
| | - Xia Yuan
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Zhihao Lu
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China
| | - Qiang Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yiguang Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China.
- Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China.
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21
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Al-Akhrass H, Conway JRW, Poulsen ASA, Paatero I, Kaivola J, Padzik A, Andersen OM, Ivaska J. A feed-forward loop between SorLA and HER3 determines heregulin response and neratinib resistance. Oncogene 2021; 40:1300-1317. [PMID: 33420373 PMCID: PMC7892347 DOI: 10.1038/s41388-020-01604-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/23/2020] [Accepted: 12/03/2020] [Indexed: 01/29/2023]
Abstract
Current evidence indicates that resistance to the tyrosine kinase-type cell surface receptor (HER2)-targeted therapies is frequently associated with HER3 and active signaling via HER2-HER3 dimers, particularly in the context of breast cancer. Thus, understanding the response to HER2-HER3 signaling and the regulation of the dimer is essential to decipher therapy relapse mechanisms. Here, we investigate a bidirectional relationship between HER2-HER3 signaling and a type-1 transmembrane sorting receptor, sortilin-related receptor (SorLA; SORL1). We demonstrate that heregulin-mediated signaling supports SorLA transcription downstream of the mitogen-activated protein kinase pathway. In addition, we demonstrate that SorLA interacts directly with HER3, forming a trimeric complex with HER2 and HER3 to attenuate lysosomal degradation of the dimer in a Ras-related protein Rab4-dependent manner. In line with a role for SorLA in supporting the stability of the HER2 and HER3 receptors, loss of SorLA compromised heregulin-induced cell proliferation and sensitized metastatic anti-HER2 therapy-resistant breast cancer cells to neratinib in cancer spheroids in vitro and in vivo in a zebrafish brain xenograft model.
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Affiliation(s)
- Hussein Al-Akhrass
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520, Turku, Finland.
| | - James R W Conway
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520, Turku, Finland
| | - Annemarie Svane Aavild Poulsen
- Danish Research Institute of Translational Neuroscience (DANDRITE) Nordic-EMBL Partnership, Department of biomedicine, Aarhus University, Aarhus, Denmark
| | - Ilkka Paatero
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520, Turku, Finland
| | - Jasmin Kaivola
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520, Turku, Finland
| | - Artur Padzik
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520, Turku, Finland
| | - Olav M Andersen
- Danish Research Institute of Translational Neuroscience (DANDRITE) Nordic-EMBL Partnership, Department of biomedicine, Aarhus University, Aarhus, Denmark
| | - Johanna Ivaska
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520, Turku, Finland.
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22
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Lunkad R, Murmiliuk A, Tošner Z, Štěpánek M, Košovan P. Role of p KA in Charge Regulation and Conformation of Various Peptide Sequences. Polymers (Basel) 2021; 13:E214. [PMID: 33435335 PMCID: PMC7827592 DOI: 10.3390/polym13020214] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/31/2020] [Accepted: 01/02/2021] [Indexed: 12/15/2022] Open
Abstract
Peptides containing amino acids with ionisable side chains represent a typical example of weak ampholytes, that is, molecules with multiple titratable acid and base groups, which generally exhibit charge regulating properties upon changes in pH. Charged groups on an ampholyte interact electrostatically with each other, and their interaction is coupled to conformation of the (macro)molecule, resulting in a complex feedback loop. Their charge-regulating properties are primarily determined by the pKA of individual ionisable side-chains, modulated by electrostatic interactions between the charged groups. The latter is determined by the amino acid sequence in the peptide chain. In our previous work we introduced a simple coarse-grained model of a flexible peptide. We validated it against experiments, demonstrating its ability to quantitatively predict charge on various peptides in a broad range of pH. In the current work, we investigated two types of peptide sequences: diblock and alternating, each of them consisting of an equal number of amino acids with acid and base side-chains. We showed that changing the sequence while keeping the same overall composition has a profound effect on the conformation, whereas it practically does not affect total charge on the peptide. Nevertheless, the sequence significantly affects the charge state of individual groups, showing that the zero net effect on the total charge is a consequence of unexpected cancellation of effects. Furthermore, we investigated how the difference between the pKA of acid and base side chains affects the charge and conformation of the peptide, showing that it is possible to tune the charge-regulating properties by following simple guiding principles based on the pKA and on the amino acid sequence. Our current results provide a theoretical basis for understanding of the complex coupling between the ionisation and conformation in flexible polyampholytes, including synthetic polymers, biomimetic materials and biological molecules, such as intrinsically disordered proteins, whose function can be regulated by changes in the pH.
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Affiliation(s)
| | | | | | | | - Peter Košovan
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic; (R.L.); (A.M.); (Z.T.); (M.Š.)
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23
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Andrian T, Riera R, Pujals S, Albertazzi L. Nanoscopy for endosomal escape quantification. NANOSCALE ADVANCES 2021; 3:10-23. [PMID: 36131870 PMCID: PMC9419860 DOI: 10.1039/d0na00454e] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 10/26/2020] [Indexed: 05/04/2023]
Abstract
The successful cytosolic delivery of nanoparticles is hampered by their endosomal entrapment and degradation. To push forward the smart development of nanoparticles we must reliably detect and quantify their endosomal escape process. However, the current methods employed are not quantitative enough at the nanoscale to achieve this. Nanoscopy is a rapidly evolving field that has developed a diverse set of powerful techniques in the last two decades, opening the door to explore nanomedicine with an unprecedented resolution and specificity. The understanding of key steps in the drug delivery process - such as endosomal escape - would benefit greatly from the implementation of the most recent advances in microscopy. In this review, we provide the latest insights into endosomal escape of nanoparticles obtained by nanoscopy, and we discuss the features that would allow these techniques to make a great impact in the field.
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Affiliation(s)
- Teodora Andrian
- Nanoscopy for Nanomedicine, Institute for Bioengineering of Catalonia Barcelona Spain
| | - Roger Riera
- Department of Biomedical Engineering, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology Eindhoven Netherlands
| | - Silvia Pujals
- Nanoscopy for Nanomedicine, Institute for Bioengineering of Catalonia Barcelona Spain
- Department of Electronics and Biomedical Engineering, Faculty of Physics, Universitat de Barcelona Av. Diagonal 647 08028 Barcelona Spain
| | - Lorenzo Albertazzi
- Nanoscopy for Nanomedicine, Institute for Bioengineering of Catalonia Barcelona Spain
- Department of Biomedical Engineering, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology Eindhoven Netherlands
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24
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Prolonged activation of innate immune pathways by a polyvalent STING agonist. Nat Biomed Eng 2021; 5:455-466. [PMID: 33558734 PMCID: PMC8126516 DOI: 10.1038/s41551-020-00675-9] [Citation(s) in RCA: 131] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 12/09/2020] [Indexed: 02/03/2023]
Abstract
The stimulator of interferon genes (STING) is an endoplasmic reticulum transmembrane protein that is a target of therapeutics for infectious diseases and cancer. However, early-phase clinical trials of small-molecule STING agonists have shown limited antitumour efficacy and dose-limiting toxicity. Here, we show that a polyvalent STING agonist-a pH-sensitive polymer bearing a seven-membered ring with a tertiary amine (PC7A)-activates innate-immunity pathways through the polymer-induced formation of STING-PC7A condensates. In contrast to the natural STING ligand 2',3'-cyclic-GMP-AMP (cGAMP), PC7A stimulates the prolonged production of pro-inflammatory cytokines by binding to a non-competitive STING surface site that is distinct from the cGAMP binding pocket. PC7A induces antitumour responses that are dependent on STING expression and CD8+ T-cell activity, and the combination of PC7A and cGAMP led to synergistic therapeutic outcomes (including the activation of cGAMP-resistant STING variants) in mice bearing subcutaneous tumours and in resected human tumours and lymph nodes. The activation of the STING pathway through polymer-induced STING condensation may offer new therapeutic opportunities.
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25
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Wang X, Wilhelm J, Li W, Li S, Wang Z, Huang G, Wang J, Tang H, Khorsandi S, Sun Z, Evers B, Gao J. Polycarbonate-based ultra-pH sensitive nanoparticles improve therapeutic window. Nat Commun 2020; 11:5828. [PMID: 33203928 PMCID: PMC7673035 DOI: 10.1038/s41467-020-19651-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 10/19/2020] [Indexed: 02/08/2023] Open
Abstract
Stimuli-sensitive nanomaterials with cooperative response are capable of converting subtle and gradual biological variations into robust outputs to improve the precision of diagnostic or therapeutic outcomes. In this study, we report the design, synthesis and characterization of a series of degradable ultra-pH sensitive (dUPS) polymers that amplify small acidic pH changes to efficacious therapeutic outputs. A hydrolytically active polycarbonate backbone is used to construct the polymer with pH-dependent degradation kinetics. One dUPS polymer, PSC7A, can achieve activation of the stimulator of interferon genes and antigen delivery upon endosomal pH activation, leading to T cell-mediated antitumor immunity. While a non-degradable UPS polymer induces granulomatous inflammation that persists over months at the injection site, degradable PSC7A primes a transient acute inflammatory response followed by polymer degradation and complete tissue healing. The improved therapeutic window of the dUPS polymers opens up opportunities in pH-targeted drug and protein therapy.
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Affiliation(s)
- Xu Wang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jonathan Wilhelm
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Wei Li
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Suxin Li
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Zhaohui Wang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Gang Huang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jian Wang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Houliang Tang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Sina Khorsandi
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Zhichen Sun
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Bret Evers
- Department of Pathology and Ophthalmology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jinming Gao
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.
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26
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Abdullah CS, Ray P, Alam S, Kale N, Aishwarya R, Morshed M, Dutta D, Hudziak C, Banerjee SK, Mallik S, Banerjee S, Bhuiyan MS, Quadir M. Chemical Architecture of Block Copolymers Differentially Abrogate Cardiotoxicity and Maintain the Anticancer Efficacy of Doxorubicin. Mol Pharm 2020; 17:4676-4690. [PMID: 33151075 DOI: 10.1021/acs.molpharmaceut.0c00963] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The molecular architecture of pH-responsive amphiphilic block copolymers, their self-assembly behavior to form nanoparticles (NPs), and doxorubicin (DOX)-loading technique govern the extent of DOX-induced cardiotoxicity. We observed that the choice of pH-sensitive tertiary amines, surface charge, and DOX-loading techniques within the self-assembled NPs strongly influence the release and stimulation of DOX-induced cardiotoxicity in primary cardiomyocytes. However, covalent conjugation of DOX to a pH-sensitive nanocarrier through a "conditionally unstable amide" linkage (PCPY-cDOX; PC = polycarbonate and PY = 2-pyrrolidine-1-yl-ethyl-amine) significantly reduced the cardiotoxicity of DOX in cardiomyocytes as compared to noncovalently encapsulated DOX NPs (PCPY-eDOX). When these formulations were tested for drug release in serum-containing media, the PCPY-cDOX systems showed prolonged control over drug release (for ∼72 h) at acidic pH compared to DOX-encapsulated nanocarriers, as expected. We found that DOX-encapsulated nanoformulations triggered cardiotoxicity in primary cardiomyocytes more acutely, while conjugated systems such as PCPY-cDOX prevented cardiotoxicity by disabling the nuclear entry of the drug. Using 2D and 3D (spheroid) cultures of an ER + breast cancer cell line (MCF-7) and a triple-negative breast cancer cell line (MDA-MB-231), we unravel that, similar to encapsulated systems (PCPY-eDOX-type) as reported earlier, the PCPY-cDOX system suppresses cellular proliferation in both cell lines and enhances trafficking through 3D spheroids of MDA-MB-231 cells. Collectively, our studies indicate that PCPY-cDOX is less cardiotoxic as compared to noncovalently encapsulated variants without compromising the chemotherapeutic properties of the drug. Thus, our studies suggest that the appropriate selection of the nanocarrier for DOX delivery may prove fruitful in shifting the balance between low cardiotoxicity and triggering the chemotherapeutic potency of DOX.
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Affiliation(s)
- Chowdhury S Abdullah
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana 71103, United States
| | - Priyanka Ray
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Shafiul Alam
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana 71103, United States
| | - Narendra Kale
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Richa Aishwarya
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana 71103, United States
| | - Mahboob Morshed
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana 71103, United States
| | - Debasmita Dutta
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Cathleen Hudziak
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Sushanta K Banerjee
- Cancer Research Unit, VA Medical Center, Kansas City, Missouri 64128, United States.,Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas 66160, United States
| | - Sanku Mallik
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Snigdha Banerjee
- Cancer Research Unit, VA Medical Center, Kansas City, Missouri 64128, United States.,Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas 66160, United States
| | - Md Shenuarin Bhuiyan
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana 71103, United States.,Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana 71103, United States
| | - Mohiuddin Quadir
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
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27
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Mi P, Miyata K, Kataoka K, Cabral H. Clinical Translation of Self‐Assembled Cancer Nanomedicines. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.202000159] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Peng Mi
- Department of Radiology, Center for Medical Imaging, State Key Laboratory of Biotherapy and Cancer Center West China Hospital, Sichuan University No. 17 People's South Road Chengdu 610041 China
| | - Kanjiro Miyata
- Department of Materials Engineering, Graduate School of Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113‐8656 Japan
| | - Kazunori Kataoka
- Institute for Future Initiatives The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113‐0033 Japan
- Innovation Center of NanoMedicine Kawasaki Institute of Industrial Promotion 3‐25‐14, Tonomachi, Kawasaki‐ku Kawasaki 210‐0821 Japan
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113‐8656 Japan
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28
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Wilhelm J, Wang Z, Sumer BD, Gao J. Exploiting nanoscale cooperativity for precision medicine. Adv Drug Deliv Rev 2020; 158:63-72. [PMID: 32882321 DOI: 10.1016/j.addr.2020.08.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 08/25/2020] [Accepted: 08/27/2020] [Indexed: 12/21/2022]
Abstract
Precise spatiotemporal control of molecular transport is vital to functional physiological systems. Nature evolved to apply macromolecular cooperativity to achieve precision over systemic delivery of important molecules. In drug delivery, conventional nanocarriers employ inert materials and rely on passive accumulation for tissue targeting and diffusion for drug release. Early clinical studies show these nanodrugs have not delivered the anticipated impact on therapy. Inspired by nature, we propose a design principle that incorporates nanoscale cooperativity and phase transition to sense and amplify physiological signals to improve the therapeutic outcome. Using ultra-pH-sensitive (UPS) nanoparticles as an example, we demonstrate how all-or-nothing protonation cooperativity during micelle assembly/disassembly can be exploited to increase dose accumulation and achieve rapid drug release in acidic microenvironments. In a separate study, we show the effectiveness of a single polymer composition to accomplish cytosolic delivery of tumor antigens with activation of stimulator of interferon genes (STING) in lymph node-resident dendritic cells for cancer immunotherapy. Molecular cooperativity is a hallmark of nanobiology that offers a valuable strategy to functionalize nanomedicine systems to achieve precision medicine.
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Affiliation(s)
- Jonathan Wilhelm
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 6001 Forest Park Road, Dallas, TX 75390, USA
| | - Zhaohui Wang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 6001 Forest Park Road, Dallas, TX 75390, USA
| | - Baran D Sumer
- Department of Otolaryngology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA
| | - Jinming Gao
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 6001 Forest Park Road, Dallas, TX 75390, USA.; Department of Otolaryngology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA..
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29
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Méndez‐Ardoy A, Reina JJ, Montenegro J. Synthesis and Supramolecular Functional Assemblies of Ratiometric pH Probes. Chemistry 2020; 26:7516-7536. [DOI: 10.1002/chem.201904834] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/20/2019] [Indexed: 01/28/2023]
Affiliation(s)
- Alejandro Méndez‐Ardoy
- Centro Singular de Investigación en Química Biolóxica e, Materiais Moleculares (CIQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Jose J. Reina
- Centro Singular de Investigación en Química Biolóxica e, Materiais Moleculares (CIQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Javier Montenegro
- Centro Singular de Investigación en Química Biolóxica e, Materiais Moleculares (CIQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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30
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Wang C, Dong Y, Shi X, Guo J, Zhang J, Deng L, Lin Z, Huang P, Shi Y, Wang W, Dong A. "Off/on" fluorescence imaging-guided cancer diagnosis and multi-modal therapy. Biomater Sci 2020; 8:1442-1454. [PMID: 31960834 DOI: 10.1039/c9bm01854a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient theranostic nanoplatform responding to tumour microenvironments with characters of simple and flexible combinations owns great potential in cancer diagnosis and therapy. Herein, a series of triblock copolymers, mPEG-b-PDPA-b-P(nBMA-r-cystamine) (EPB), were synthesized and among them, the structure of EPB-3 was optimized for both fluorescence imaging-guided cancer diagnosis and multi-modal therapy with good biocompatibility. (1) The self-assembled nanoparticles of EPB-3-ICG1 obtained by conjugating one ICG on EPB-3 via S-S bonds effectively performed reduction-sensitive OFF/ON fluorescence signal transition, thus inducing tumour cell-specific amplified fluorescence imaging in vitro and in vivo. (2) By entrapping Au nanorods into the co-assembled NPs of EPB-3 and EPB-3-ICG1, EPB-3-ICG1@Au NPs could synchronously induce strong tumour fluorescence imaging and high local photothermal effect, indicating the potential of imagine-guided photothermal therapy. (3) EPB-3 NPs could efficiently co-load paclitaxel (PTX) and ICG to form stable EPB-3@PTX@ICG NPs, which provided long periods of intracellular pH-sensitive sustainable drug release and highly enhanced apoptosis of 4T1 cells in vitro by the chemo-photothermal effect. Excitingly, a single intravenous injection of EPB-3@PTX@ICG NPs followed by a one-time local near-infrared light (NIR, 808 nm) irradiation treatment for 10 min could lead to significant inhibition of tumour growth, avoiding tumor metastasis and extending the survival of mice. All the above-mentioned results suggest that EPB-3 provides a nanoplatform with the characters of simple structure, convenience of use and flexible combination, holding potential for multi-modal diagnosis and therapy.
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Affiliation(s)
- Changrong Wang
- Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, Tianjin University, Tianjin 300072, China.
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31
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Bennett ZT, Feng Q, Bishop JA, Huang G, Sumer BD, Gao J. Detection of Lymph Node Metastases by Ultra-pH-Sensitive Polymeric Nanoparticles. Theranostics 2020; 10:3340-3350. [PMID: 32194872 PMCID: PMC7053196 DOI: 10.7150/thno.41239] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/02/2020] [Indexed: 12/17/2022] Open
Abstract
Lymph node (LN) dissection followed by histological analysis is the current standard for diagnosis of LN metastasis but the method suffers from patient morbidity and low sensitivity of detection. Ultra-pH sensitive (UPS) nanoparticles show remarkable accuracy in the delineation of primary tumor margins for precision cancer surgery. Herein we investigate the effectiveness of UPS nanoparticles to detect cancer-involved LNs. Methods: We synthesized a series of indocyanine green (ICG) conjugated UPS nanoparticles with distinct pKa (UPS5.3, UPS6.1, and UPS6.9). Systemically administered UPS-ICG nanoparticles in the 4T1.2-BALB/cj mouse model were imaged with real-time, near-infrared fluorescence (NIRF) to guide removal of LNs. Ex vivo imaging of gross tissue enabled quantification of fluorescence intensity. Histological analysis was used as the gold standard diagnostic test. Results: Macrophage uptake of UPS nanoparticles elevates the background signal in benign LNs. However, cancer foci within LNs show distinctive clustering of UPS-ICG fluorescence. UPS5.3 achieves accurate detection of metastatic LNs as shown by a receiver operating characteristic (ROC) area under the curve (AUC) of 0.96 ± 0.03. UPS6.1 and UPS6.9 offer decreased discriminatory power at ROC AUC of 0.73 ± 0.1 and 0.88 ± 0.07, respectively. Conclusions: All UPS compositions show cancer-specific discrimination of metastatic LNs over benign LNs with the best outcomes from UPS5.3. Detection of micro-metastatic LNs (cancer foci < 2 mm) remains a challenge. This study provides information on the detection of LN status for image-guided resection of metastatic LNs.
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32
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Hu W, He T, Zhao H, Tao H, Chen R, Jin L, Li J, Fan Q, Huang W, Baev A, Prasad PN. Stimuli‐Responsive Reversible Switching of Intersystem Crossing in Pure Organic Material for Smart Photodynamic Therapy. Angew Chem Int Ed Engl 2019; 58:11105-11111. [DOI: 10.1002/anie.201905129] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 06/05/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Wenbo Hu
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
- Institute for LasersPhotonics, and Biophotonics and the Department of ChemistryUniversity at BuffaloState University of New York Buffalo NY 14260 USA
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University Nanjing 211816 China
| | - Tingchao He
- College of Physics Science & TechnologyShenzhen University Shenzhen 518060 China
| | - Hui Zhao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Haojie Tao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Runfeng Chen
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Lu Jin
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Junzi Li
- College of Physics Science & TechnologyShenzhen University Shenzhen 518060 China
| | - Quli Fan
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
- Shaanxi Institute of Flexible ElectronicsNorthwestern Polytechnical University Xi'an 710072 China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University Nanjing 211816 China
- Shaanxi Institute of Flexible ElectronicsNorthwestern Polytechnical University Xi'an 710072 China
| | - Alexander Baev
- Institute for LasersPhotonics, and Biophotonics and the Department of ChemistryUniversity at BuffaloState University of New York Buffalo NY 14260 USA
| | - Paras N. Prasad
- Institute for LasersPhotonics, and Biophotonics and the Department of ChemistryUniversity at BuffaloState University of New York Buffalo NY 14260 USA
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The Major Hurdle for Effective Baculovirus Transduction into Mammalian Cells Is Passing Early Endosomes. J Virol 2019; 93:JVI.00709-19. [PMID: 31092570 DOI: 10.1128/jvi.00709-19] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 05/07/2019] [Indexed: 12/19/2022] Open
Abstract
Baculoviruses, although they infect insects in nature, can transduce a wide variety of mammalian cells and are therefore promising gene therapy vectors. However, baculovirus transduction into many mammalian cells is very inefficient, and the limiting stages and factors remain unknown. An important finding is that a short-duration trigger with low pH can significantly enhance virus transduction efficiency, but the mechanism is poorly understood. Herein, we performed a detailed comparative study on entry mechanisms of the prototypical baculovirus Autographa californica multiple nucleopolyhedrovirus (AcMNPV) into insect and mammalian cells. The results showed that AcMNPV could be internalized into mammalian cells efficiently, but fusion in early endosomes (EEs) appeared to be the major obstacle. Measurement of endosomal pH suggested that virus fusion might be restricted under relatively high-pH conditions in mammalian cells. Interestingly, mutations of the major viral fusion protein GP64 that conferred decreased fusogenicity did not affect virus infection of insect cells, whereas virus transduction into mammalian cells was severely impaired, suggesting a more stringent dependence on GP64 fusogenicity for AcMNPV entry into mammalian cells than into insect cells. An increase in the fusogenicity of GP64 mutants resulting from low pH triggered the rescue of fusion-deficient recombinant virus transduction efficiency. Based on the above-described findings, the pH of EEs was specifically reduced with a Na+/K+-ATPase inhibitor, and the AcMNPV transduction of many mammalian cells indeed became highly efficient. This study not only revealed the roadblocks to mammalian cell entry of baculovirus but also provides a new strategy for improving baculovirus-based gene delivery and therapy.IMPORTANCE Baculoviruses can transduce a wide variety of mammalian cells but do so with low efficiency, which greatly limits their practical application as potential gene delivery vectors. So far, the understanding of baculovirus entry into mammalian cells is obscure, and the limiting stages and factors are unclear. In this study, by comparatively analyzing the mechanisms of baculovirus entry into mammalian and insect cells, virus fusion during the early stage of endocytosis was revealed as the major obstacle for efficient baculovirus transduction into mammalian cells. A higher fusogenicity of the major viral fusion protein GP64 was found to be required for virus entry into mammalian cells than for entry into insect cells. Interestingly, by decreasing the pH of early endosomes with a specific agent, virus transduction of a wide range of mammalian cells was greatly enhanced. This study uncovers the roadblocks to mammalian cell entry of baculoviruses and presents mechanisms to overcome the roadblocks.
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Hu W, He T, Zhao H, Tao H, Chen R, Jin L, Li J, Fan Q, Huang W, Baev A, Prasad PN. Stimuli‐Responsive Reversible Switching of Intersystem Crossing in Pure Organic Material for Smart Photodynamic Therapy. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905129] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wenbo Hu
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
- Institute for LasersPhotonics, and Biophotonics and the Department of ChemistryUniversity at BuffaloState University of New York Buffalo NY 14260 USA
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University Nanjing 211816 China
| | - Tingchao He
- College of Physics Science & TechnologyShenzhen University Shenzhen 518060 China
| | - Hui Zhao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Haojie Tao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Runfeng Chen
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Lu Jin
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Junzi Li
- College of Physics Science & TechnologyShenzhen University Shenzhen 518060 China
| | - Quli Fan
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
- Shaanxi Institute of Flexible ElectronicsNorthwestern Polytechnical University Xi'an 710072 China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing University of Posts & Telecommunications Nanjing 210023 China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University Nanjing 211816 China
- Shaanxi Institute of Flexible ElectronicsNorthwestern Polytechnical University Xi'an 710072 China
| | - Alexander Baev
- Institute for LasersPhotonics, and Biophotonics and the Department of ChemistryUniversity at BuffaloState University of New York Buffalo NY 14260 USA
| | - Paras N. Prasad
- Institute for LasersPhotonics, and Biophotonics and the Department of ChemistryUniversity at BuffaloState University of New York Buffalo NY 14260 USA
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Abstract
Electronic transistors have revolutionized the fields of microelectronics, computers, and mobile devices. Their ability to digitize electronic signals allows high fidelity data transfer as well as formation of logic gates. Inspired by electronic transistors, transistor-like organic materials have been under intensive investigation to amplify biological signals in a broad range of applications such as biosensing, diagnostic imaging, and therapeutic delivery. This Account highlights the inception and implementation of a "proton transistor" nanoparticle that can digitize acidotic pH signals in biological systems. Similar to electronic transistors, the ultra-pH-sensitive (UPS) nanoparticles derive their binary threshold response from phase separation phenomena. Hydrophobic micellization drives nanophase separation from unimers to aggregated polymeric micelles, which is responsible for the all-or-nothing proton distribution between the micelle and unimer states. Depending on the assembly status, conjugated fluorophores are quenched (micelle state) or freely fluoresce (solution unimer state) allowing robust detection of the phase transition behavior across a narrow pH range. Based on this mechanistic insight, we created a UPS nanoparticle library encompassing a broad physiological pH range from 4.0 to 7.4. For biological applications, we engineered a barcode-like nanosensor capable of digitizing multiple pH signals at a single organelle resolution in live cells. The barcode system allowed easy identification of mutant Kirsten rat sarcoma viral oncogene (KRAS), a common mutation involved in tumorigenesis, which leads to rapid cellular proliferation, as the protein driver for accelerated organelle acidification and lysosome catabolism in a broad set of isogenic as well as heterogeneous cancer cell lines. Adoption of the technology to an ON-OFF/Always-ON design allowed the quantification of proton flux across the membranes of endocytic organelles. For medical applications, we demonstrate the ability to achieve binary detection of solid cancers with clear tumor margin delineation by near-infrared fluorescence imaging. Image-guided resection of head/neck and breast tumors resulted in significantly improved long-term survival over white light or tumor debulking surgeries in tumor-bearing mice, catapulting the clinical evaluation of the UPS nanosensor in cancer patients. This Account serves as the first comprehensive summary of the molecular mechanism and biological applications of the digital pH threshold sensors. Building on the concept of cooperative phase transition behavior, we hope this Account will promote the rational design and development of additional transistor-like chemical sensors to digitize analog biological signals.
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Affiliation(s)
- Qiang Feng
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 6001 Forest Park Road, Dallas, Texas 75390, United States
| | - Jonathan Wilhelm
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 6001 Forest Park Road, Dallas, Texas 75390, United States
| | - Jinming Gao
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 6001 Forest Park Road, Dallas, Texas 75390, United States
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Tao W, Wang J, Parak WJ, Farokhzad OC, Shi J. Nanobuffering of pH-Responsive Polymers: A Known but Sometimes Overlooked Phenomenon and Its Biological Applications. ACS NANO 2019; 13:4876-4882. [PMID: 30985108 PMCID: PMC6748625 DOI: 10.1021/acsnano.9b01696] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
With recent advances in polymer chemistry, materials science, and nanotechnology, pH-responsive polymers have a significant impact in a number of diverse fields. Fundamental studies of these polymers are thus highly desirable as they may lead to new insights into the rational design of pH-responsive polymers with specific effects. In this Perspective, we focus on the nanobuffering of pH-responsive polymers (NBPRP). Although researchers have known of such buffering effects for more than a century, for example, in the context of the Henderson-Hasselbalch equation, modern synthesis and analysis routes now enable us to analyze these effects on the nanometer scale. In this way, the NBPRP phenomenon was explicitly defined and described by Gauthier and colleagues in the February issue of ACS Nano. Here, we highlight several potential areas in which the NBPRP could enable innovative classes of biological applications. We expect deeper mechanistic understanding of nanobuffering effects induced by pH-responsive polymers to have a significant impact on the future development and applications of these polymers.
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Affiliation(s)
- Wei Tao
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Junqing Wang
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Wolfgang J. Parak
- Center for Hybrid Nanostructures (CHyN), Univeristät Hamburg, 22607 Hamburg, Germany
| | - Omid C. Farokhzad
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Jinjun Shi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
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Kong C, Li Y, Liu Z, Ye J, Wang Z, Zhang L, Kong W, Liu H, Liu C, Pang H, Hu Z, Gao J, Qian F. Targeting the Oncogene KRAS Mutant Pancreatic Cancer by Synergistic Blocking of Lysosomal Acidification and Rapid Drug Release. ACS NANO 2019; 13:4049-4063. [PMID: 30912923 DOI: 10.1021/acsnano.8b08246] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Survival of KRAS mutant pancreatic cancer is critically dependent on reprogrammed metabolism including elevated macropinocytosis, autophagy, and lysosomal degradation of proteins. Lysosomal acidification is indispensable to protein catabolism, which makes it an exploitable metabolic target for KRAS mutant pancreatic cancer. Herein we investigated ultra-pH-sensitive micelles (UPSM) with pH-specific buffering of organelle pH and rapid drug release as a promising therapy against pancreatic cancer. UPSM undergo micelle-unimer phase transition at their apparent p Ka, with dramatically increased buffer capacity in a narrow pH range (<0.3 pH). Cell studies including amino acid profiling showed that UPSM inhibited lysosomal catabolism more efficiently than conventional lysosomotropic agents ( e. g., chloroquine) and induced cell apoptosis under starved condition. Moreover, pH-triggered rapid drug release from triptolide prodrug-loaded UPSM (T-UPSM) significantly enhanced cytotoxicity over non-pH-sensitive micelles (T-NPSM). Importantly, T-UPSM demonstrated superior safety and antitumor efficacy over triptolide and T-NPSM in KRAS mutant pancreatic cancer mouse models. Our findings suggest that the ultra-pH-sensitive nanoparticles are a promising therapeutic platform to treat KRAS mutant pancreatic cancer through simultaneous lysosomal pH buffering and rapid drug release.
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Affiliation(s)
- Chao Kong
- School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Yang Li
- Department of Pharmacology, Simmons Comprehensive Cancer Center , University of Texas Southwestern Medical Center , Dallas , Texas 75390 , United States
| | - Zhengsheng Liu
- School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Junxiao Ye
- School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Zhaohui Wang
- Department of Pharmacology, Simmons Comprehensive Cancer Center , University of Texas Southwestern Medical Center , Dallas , Texas 75390 , United States
| | - Ling Zhang
- School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Weijian Kong
- School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Huiqin Liu
- School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Chun Liu
- School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Huanhuan Pang
- School of Pharmaceutical Sciences , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Zeping Hu
- School of Pharmaceutical Sciences , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Jinming Gao
- Department of Pharmacology, Simmons Comprehensive Cancer Center , University of Texas Southwestern Medical Center , Dallas , Texas 75390 , United States
| | - Feng Qian
- School of Pharmaceutical Sciences, Beijing Advanced Innovation Center for Structural Biology, and Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing 100084 , People's Republic of China
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Chen T, He B, Tao J, He Y, Deng H, Wang X, Zheng Y. Application of Förster Resonance Energy Transfer (FRET) technique to elucidate intracellular and In Vivo biofate of nanomedicines. Adv Drug Deliv Rev 2019; 143:177-205. [PMID: 31201837 DOI: 10.1016/j.addr.2019.04.009] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 02/25/2019] [Accepted: 04/08/2019] [Indexed: 12/24/2022]
Abstract
Extensive studies on nanomedicines have been conducted for drug delivery and disease diagnosis (especially for cancer therapy). However, the intracellular and in vivo biofate of nanomedicines, which is significantly associated with their clinical therapeutic effect, is poorly understood at present. This is because of the technical challenges to quantify the disassembly and behaviour of nanomedicines. As a fluorescence- and distance-based approach, the Förster Resonance Energy Transfer (FRET) technique is very successful to study the interaction of nanomedicines with biological systems. In this review, principles on how to select a FRET pair and construct FRET-based nanomedicines have been described first, followed by their application to study structural integrity, biodistribution, disassembly kinetics, and elimination of nanomedicines at intracellular and in vivo levels, especially with drug nanocarriers including polymeric micelles, polymeric nanoparticles, and lipid-based nanoparticles. FRET is a powerful tool to reveal changes and interaction of nanoparticles after delivery, which will be very useful to guide future developments of nanomedicine.
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Affiliation(s)
- Tongkai Chen
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Bing He
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
| | - Jingsong Tao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yuan He
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Hailiang Deng
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xueqing Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Ying Zheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
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Anees P, Zhao Y, Greschner AA, Congdon TR, de Haan HW, Cottenye N, Gauthier MA. Evidence, Manipulation, and Termination of pH 'Nanobuffering' for Quantitative Homogenous Scavenging of Monoclonal Antibodies. ACS NANO 2019; 13:1019-1028. [PMID: 30588795 DOI: 10.1021/acsnano.8b07202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study demonstrates that pH-responsive polymers have a very high buffering capacity in their immediate vicinity, a phenomenon termed "nanobuffering". This can be exploited to dissociate local nanoscale pH from bulk solution pH. Herein, a series of pH-responsive polymers were conjugated to Protein-A to rationally manipulate the latter's binding affinity toward antibodies via nanobuffering ( i. e., this interaction is pH dependent), independently of bulk solution pH. Moreover, the nanobuffering effect could be terminated using low concentrations of strong ion-pairing salts, to achieve quantitative release of the antibodies from the bioconjugate. These complementary discoveries are showcased in the context of the development of a homogeneous affinity precipitation agent ( i. e., a scavenger) for the purification of polyclonal immunoglobulin G and two monoclonal antibodies from cell culture supernatant. Indeed, while bulk solution pH was used to induce precipitation of the scavenger, maintaining local nanoscale pH via nanobuffering maximized binding interaction with the antibodies. A 2:1 binding stoichiometry was observed, which was similar to that observed for native protein. The scavenger could be recycled multiple times, and the purification protocol circumvented lengthy/tedious physical purification processes typically associated with mAb manufacturing. Overall, this study provides perspectives on the local nanoscale pH near pH-responsive polymers and establishes lines of thought for predictably manipulating or even terminating nanobuffering, to control the activity of proteins.
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Affiliation(s)
- Palapuravan Anees
- EMT Research Center , Institut National de la Recherche Scientifique (INRS) , Varennes , Quebec J3X 1S2 , Canada
| | - Yi Zhao
- EMT Research Center , Institut National de la Recherche Scientifique (INRS) , Varennes , Quebec J3X 1S2 , Canada
| | - Andrea A Greschner
- EMT Research Center , Institut National de la Recherche Scientifique (INRS) , Varennes , Quebec J3X 1S2 , Canada
| | - Thomas R Congdon
- EMT Research Center , Institut National de la Recherche Scientifique (INRS) , Varennes , Quebec J3X 1S2 , Canada
| | - Hendrick W de Haan
- Faculty of Science , University of Ontario Institute of Technology , Oshawa , Ontario L1H 7K4 , Canada
| | | | - Marc A Gauthier
- EMT Research Center , Institut National de la Recherche Scientifique (INRS) , Varennes , Quebec J3X 1S2 , Canada
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Dong B, Du S, Wang C, Fu H, Li Q, Xiao N, Yang J, Xue X, Cai W, Liu D. Reversible Self-Assembly of Nanoprobes in Live Cells for Dynamic Intracellular pH Imaging. ACS NANO 2019; 13:1421-1432. [PMID: 30730703 DOI: 10.1021/acsnano.8b07054] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Self-assembly is a powerful tool to organize the elementary molecular units into functional nanostructures, which provide reversible stimulus-responsive systems for a variety of purposes. However, the ability to modulate the reversible self-assembly in live systems remains a great challenge owing to the chemical complexity of intracellular environments, which often damage synthetic assembled superstructures. Herein, we describe a robust reversible self-assembly system that is composed of a hydrophobic gold nanoparticle (AuNP) core and a shell of pH-responsive dye-incorporated block copolymers. The reversible assembly-disassembly processes were precisely controlled through mediating the molecular interactions between the copolymers and AuNPs. More importantly, the major endogenous biospecies such as proteins will not impair the reversible self-assembly, which was supported by free-energy calculations. The reversible pH-responsive nanostructures were employed as "smart" probes for visualizing the subtle dynamic pH changes among different intracellular compartments, facilitating the study of pH influence on biological processes.
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Affiliation(s)
- Bo Dong
- College of Chemistry, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing , Nankai University , Tianjin 300071 , China
| | - Shuangli Du
- College of Chemistry, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing , Nankai University , Tianjin 300071 , China
| | - Chunxiao Wang
- State Key Laboratory of Medicinal Chemical Biology , Nankai University , Tianjin 300071 , China
| | - Haohao Fu
- College of Chemistry, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing , Nankai University , Tianjin 300071 , China
| | - Qiang Li
- College of Chemistry, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing , Nankai University , Tianjin 300071 , China
| | - Nannan Xiao
- State Key Laboratory of Medicinal Chemical Biology , Nankai University , Tianjin 300071 , China
| | - Jie Yang
- College of Chemistry, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing , Nankai University , Tianjin 300071 , China
| | - Xue Xue
- State Key Laboratory of Medicinal Chemical Biology , Nankai University , Tianjin 300071 , China
| | - Wensheng Cai
- College of Chemistry, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing , Nankai University , Tianjin 300071 , China
| | - Dingbin Liu
- College of Chemistry, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing , Nankai University , Tianjin 300071 , China
- State Key Laboratory of Medicinal Chemical Biology , Nankai University , Tianjin 300071 , China
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41
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Abstract
Intracellular delivery of biological agents such as peptides, proteins, and nucleic acids generally rely on the endocytic pathway as the major uptake mechanism, resulting in their entrapment inside the endosome and lysosome. The recent discovery of cell-penetrating molecules of exceptionally high endosomal escape and cytosolic delivery efficiencies and elucidation of their mechanism of action represent major breakthroughs in this field. In this Topical Review, we provide an overview of the recent progress in understanding and enhancing the endosomal escape process and the new opportunities opened up by these recent findings.
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Affiliation(s)
- Dehua Pei
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12 Avenue, Columbus, Ohio 43210, USA
| | - Marina Buyanova
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12 Avenue, Columbus, Ohio 43210, USA
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42
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Li B, Cai M, Lin L, Sun W, Zhou Z, Wang S, Wang Y, Zhu K, Shuai X. MRI-visible and pH-sensitive micelles loaded with doxorubicin for hepatoma treatment. Biomater Sci 2019; 7:1529-1542. [DOI: 10.1039/c8bm01501e] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A novel pH-sensitive micelle was constructed to efficiently co-deliver SPIONs and doxorubicin for cancer theranostic application.
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Affiliation(s)
- Bo Li
- Laboratory of Interventional Radiology
- Department of Minimally Invasive Interventional Radiology
- and Department of Radiology
- the Second Affiliated Hospital of Guangzhou Medical University
- Guangzhou
| | - Mingyue Cai
- Laboratory of Interventional Radiology
- Department of Minimally Invasive Interventional Radiology
- and Department of Radiology
- the Second Affiliated Hospital of Guangzhou Medical University
- Guangzhou
| | - Liteng Lin
- Laboratory of Interventional Radiology
- Department of Minimally Invasive Interventional Radiology
- and Department of Radiology
- the Second Affiliated Hospital of Guangzhou Medical University
- Guangzhou
| | - Weitong Sun
- Pharmaceutical college of Jiamusi University
- Jiamusi University
- Jiamusi
- China
| | - Zhimei Zhou
- Laboratory of Interventional Radiology
- Department of Minimally Invasive Interventional Radiology
- and Department of Radiology
- the Second Affiliated Hospital of Guangzhou Medical University
- Guangzhou
| | - Shiyin Wang
- PCFM Lab of Ministry of Education
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou
- China
| | - Yong Wang
- PCFM Lab of Ministry of Education
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou
- China
| | - Kangshun Zhu
- Laboratory of Interventional Radiology
- Department of Minimally Invasive Interventional Radiology
- and Department of Radiology
- the Second Affiliated Hospital of Guangzhou Medical University
- Guangzhou
| | - Xintao Shuai
- PCFM Lab of Ministry of Education
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou
- China
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43
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Peeler DJ, Thai SN, Cheng Y, Horner PJ, Sellers DL, Pun SH. pH-sensitive polymer micelles provide selective and potentiated lytic capacity to venom peptides for effective intracellular delivery. Biomaterials 2018; 192:235-244. [PMID: 30458359 DOI: 10.1016/j.biomaterials.2018.11.004] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/31/2018] [Accepted: 11/03/2018] [Indexed: 01/12/2023]
Abstract
Endocytosed biomacromolecule delivery systems must escape the endosomal trafficking pathway in order for their cargo to exert effects in other cellular compartments. Although endosomal release is well-recognized as one of the greatest barriers to efficacy of biologic drugs with intracellular targets, most drug carriers have relied on cationic materials that passively induce endosomal swelling and membrane rupture with low efficiency. To address the endosome release challenge, our lab has developed a diblock copolymer system for nucleic acid delivery that selectively displays a potent membrane-lytic peptide (melittin) in response to the pH drop during the endosomal maturation. To further optimize this system, we evaluated a panel of peptides with reported lytic activity in comparison to melittin. Nineteen different lytic peptides were synthesized and their membrane-lytic properties at both neutral and acidic pH characterized using a red blood cell hemolysis assay. The top five performing peptides were then conjugated to our pH-sensitive diblock copolymer via disulfide linkers and used to deliver a variety of nucleic acids to cultured mammalian cells as well as in vivo to the mouse brain. We demonstrate that the sharp pH-transition of VIPER compensates for potential advantages from pH-sensitive peptides, such that polymer-peptide conjugates with poorly selective but highly lytic peptides achieve safe and effective transfection both in vitro and in vivo. In addition, peptides that require release from polymer backbones for lysis were less effective in the VIPER system, likely due to limited endosomal reducing power of target cells. Finally, we show that certain peptides are potentiated in lytic ability by polymer conjugation and that these peptide-polymer constructs are most effective in vivo.
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Affiliation(s)
- David J Peeler
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, 98195, United States
| | - Salina N Thai
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, 98195, United States
| | - Yilong Cheng
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, 98195, United States
| | - Philip J Horner
- Center for Neuroregeneration and Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, United States
| | - Drew L Sellers
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, 98195, United States.
| | - Suzie H Pun
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, 98195, United States.
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44
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Wang Z, Zhang X, Huang G, Gao J. pH-responsive Drug Delivery Systems. STIMULI-RESPONSIVE DRUG DELIVERY SYSTEMS 2018. [DOI: 10.1039/9781788013536-00051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Acidic microenvironments exist in selected organs, tissues, and subcellular compartments, as well as in many dysregulated pathological states. A continuous effort has been made to harness the unique acidic properties of biological tissues for site-specific delivery of drugs. Various pH-responsive drug delivery systems have been designed and developed with improved spatio-temporal control of payload delivery with enhanced efficacy. This chapter will focus on the recent advances in the development of pH-sensitive materials, mechanisms of payload release, and pH-triggered drug targeting in various biomedical applications.
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Affiliation(s)
- Zhaohui Wang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center at Dallas 5323 Harry Hines Blvd Dallas TX 75390 USA
| | - Xinyi Zhang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center at Dallas 5323 Harry Hines Blvd Dallas TX 75390 USA
| | - Gang Huang
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center at Dallas 5323 Harry Hines Blvd Dallas TX 75390 USA
| | - Jinming Gao
- Department of Pharmacology, Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center at Dallas 5323 Harry Hines Blvd Dallas TX 75390 USA
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45
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Wu W, Luo L, Wang Y, Wu Q, Dai HB, Li JS, Durkan C, Wang N, Wang GX. Endogenous pH-responsive nanoparticles with programmable size changes for targeted tumor therapy and imaging applications. Theranostics 2018; 8:3038-3058. [PMID: 29896301 PMCID: PMC5996358 DOI: 10.7150/thno.23459] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 03/06/2018] [Indexed: 12/20/2022] Open
Abstract
Nanotechnology-based antitumor drug delivery systems, known as nanocarriers, have demonstrated their efficacy in recent years. Typically, the size of the nanocarriers is around 100 nm. It is imperative to achieve an optimum size of these nanocarriers which must be designed uniquely for each type of delivery process. For pH-responsive nanocarriers with programmable size, changes in pH (~6.5 for tumor tissue, ~5.5 for endosomes, and ~5.0 for lysosomes) may serve as an endogenous stimulus improving the safety and therapeutic efficacy of antitumor drugs. This review focuses on current advanced pH-responsive nanocarriers with programmable size changes for anticancer drug delivery. In particular, pH-responsive mechanisms for nanocarrier retention at tumor sites, size reduction for penetrating into tumor parenchyma, escaping from endo/lysosomes, and swelling or disassembly for drug release will be highlighted. Additional trends and challenges of employing these nanocarriers in future clinical applications are also addressed.
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Affiliation(s)
- Wei Wu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Li Luo
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Yi Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Qi Wu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Han-Bin Dai
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Jian-Shu Li
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Colm Durkan
- The Nanoscience Centre, University of Cambridge, Cambridge, CB3 0FF, UK
| | - Nan Wang
- The Nanoscience Centre, University of Cambridge, Cambridge, CB3 0FF, UK
| | - Gui-Xue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
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46
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Abstract
Nanomedicine is a discipline that applies nanoscience and nanotechnology principles to the prevention, diagnosis, and treatment of human diseases. Self-assembly of molecular components is becoming a common strategy in the design and syntheses of nanomaterials for biomedical applications. In both natural and synthetic self-assembled nanostructures, molecular cooperativity is emerging as an important hallmark. In many cases, interplay of many types of noncovalent interactions leads to dynamic nanosystems with emergent properties where the whole is bigger than the sum of the parts. In this review, we provide a comprehensive analysis of the cooperativity principles in multiple self-assembled nanostructures. We discuss the molecular origin and quantitative modeling of cooperative behaviors. In selected systems, we describe the examples on how to leverage molecular cooperativity to design nanomedicine with improved diagnostic precision and therapeutic efficacy in medicine.
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Affiliation(s)
- Yang Li
- Department of Pharmacology, Simmons Comprehensive Cancer Center , UT Southwestern Medical Center , 5323 Harry Hines Boulevard , Dallas , Texas 75390 , United States
| | - Yiguang Wang
- Department of Pharmacology, Simmons Comprehensive Cancer Center , UT Southwestern Medical Center , 5323 Harry Hines Boulevard , Dallas , Texas 75390 , United States.,Beijing Key Laboratory of Molecular Pharmaceutics and State Key Laboratory of Natural and Biomimetic Drugs , Peking University , Beijing , 100191 , China
| | - Gang Huang
- Department of Pharmacology, Simmons Comprehensive Cancer Center , UT Southwestern Medical Center , 5323 Harry Hines Boulevard , Dallas , Texas 75390 , United States
| | - Jinming Gao
- Department of Pharmacology, Simmons Comprehensive Cancer Center , UT Southwestern Medical Center , 5323 Harry Hines Boulevard , Dallas , Texas 75390 , United States
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Zhang L, Xu Y, Cao W, Xie S, Wen L, Chen G. Understanding the translocation mechanism of PLGA nanoparticles across round window membrane into the inner ear: a guideline for inner ear drug delivery based on nanomedicine. Int J Nanomedicine 2018; 13:479-492. [PMID: 29403277 PMCID: PMC5784583 DOI: 10.2147/ijn.s154968] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Background The round window membrane (RWM) functions as the primary biological barrier for therapeutic agents in the inner ear via local application. Previous studies on inner ear nano-drug delivery systems mostly focused on their pharmacokinetics and distribution in the inner ear, but seldom on the interaction with the RWM. Clarifying the transport mechanism of nanoparticulate carriers across RWM will shed more light on the optimum design of nano-drug delivery systems intended for meeting demands for their clinical application. Methods The poly (lactic-co-glycolic acid) nanoparticles (PLGA NPs) encapsulating coumarin-6 were prepared by emulsifying solvent evaporation method. We utilized confocal laser scanning microscope (CLSM) in combination with transmission electron microscope to investigate the transport pathway of PLGA NPs in the RWM. Simultaneously, the concentration and time dependence of NPs across the RWM were also determined. The endocytic mechanism of NPs through this membrane interface was classically analyzed by means of various endocytic inhibitors. The intracellular location of NPs into lysosomes was evaluated using CLSM scanning microscope colocalization analysis. The Golgi-related inhibitors were employed to probe into the function of Golgi and endoplasmic reticulum (ER) in the discharge of NPs out of cells. Results PLGA NPs were herein transported through the RWM of a sandwich-like structure into the perilymph via the transcellular pathway. NPs were internalized predominantly via macropinocytosis and caveolin-mediated endocytic pathways. After being internalized, the endocytosed cargos were entrapped within the lysosomal compartments and/or the endoplasmic reticulum/Golgi apparatus which mediated the exocytotic release of NPs. Conclusion For the first time, we showed the translocation itinerary of NPs in RWM, providing a guideline for the rational fabrication of inner ear nanoparticulate carriers with better therapeutic effects.
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Affiliation(s)
- Liping Zhang
- School of Pharmacy.,Guangdong Provincial Key Laboratory of Advanced Drug Delivery.,Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, China
| | | | | | - Shibao Xie
- School of Pharmacy.,Guangdong Provincial Key Laboratory of Advanced Drug Delivery.,Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, China
| | | | - Gang Chen
- School of Pharmacy.,Guangdong Provincial Key Laboratory of Advanced Drug Delivery.,Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, China
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48
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Podinovskaia M, Spang A. The Endosomal Network: Mediators and Regulators of Endosome Maturation. ENDOCYTOSIS AND SIGNALING 2018; 57:1-38. [DOI: 10.1007/978-3-319-96704-2_1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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49
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Wang C, Niederstrasser H, Douglas PM, Lin R, Jaramillo J, Li Y, Oswald NW, Zhou A, McMillan EA, Mendiratta S, Wang Z, Zhao T, Lin Z, Luo M, Huang G, Brekken RA, Posner BA, MacMillan JB, Gao J, White MA. Small-molecule TFEB pathway agonists that ameliorate metabolic syndrome in mice and extend C. elegans lifespan. Nat Commun 2017; 8:2270. [PMID: 29273768 PMCID: PMC5741634 DOI: 10.1038/s41467-017-02332-3] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 11/21/2017] [Indexed: 12/31/2022] Open
Abstract
Drugs that mirror the cellular effects of starvation mimics are considered promising therapeutics for common metabolic disorders, such as obesity, liver steatosis, and for ageing. Starvation, or caloric restriction, is known to activate the transcription factor EB (TFEB), a master regulator of lipid metabolism and lysosomal biogenesis and function. Here, we report a nanotechnology-enabled high-throughput screen to identify small-molecule agonists of TFEB and discover three novel compounds that promote autophagolysosomal activity. The three lead compounds include the clinically approved drug, digoxin; the marine-derived natural product, ikarugamycin; and the synthetic compound, alexidine dihydrochloride, which is known to act on a mitochondrial target. Mode of action studies reveal that these compounds activate TFEB via three distinct Ca2+-dependent mechanisms. Formulation of these compounds in liver-tropic biodegradable, biocompatible nanoparticles confers hepatoprotection against diet-induced steatosis in murine models and extends lifespan of Caenorhabditis elegans. These results support the therapeutic potential of small-molecule TFEB activators for the treatment of metabolic and age-related disorders. Activation of autophagy, via the transcription factor TFEB, is a promising strategy to treat metabolic diseases. Here, the authors report three novel classes of small molecules that promote TFEB nuclear translocation, and provide evidence for the therapeutic efficacy of these compounds in mice and worms.
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Affiliation(s)
- Chensu Wang
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA.,Department of Cell Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Hanspeter Niederstrasser
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Peter M Douglas
- Department of Molecular Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Rueyling Lin
- Department of Molecular Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Juan Jaramillo
- Department of Molecular Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Yang Li
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Nathaniel W Oswald
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Anwu Zhou
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Elizabeth A McMillan
- Department of Cell Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Saurabh Mendiratta
- Department of Cell Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Zhaohui Wang
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Tian Zhao
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Zhiqaing Lin
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Min Luo
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Gang Huang
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Rolf A Brekken
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA.,Department of Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Bruce A Posner
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - John B MacMillan
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Jinming Gao
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA.
| | - Michael A White
- Department of Cell Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA.
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50
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Wang C, Wang Z, Zhao T, Li Y, Huang G, Sumer BD, Gao J. Optical molecular imaging for tumor detection and image-guided surgery. Biomaterials 2017; 157:62-75. [PMID: 29245052 DOI: 10.1016/j.biomaterials.2017.12.002] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 11/30/2017] [Accepted: 12/02/2017] [Indexed: 12/15/2022]
Abstract
We have witnessed rapid development of fluorescence molecular imaging of solid tumors for cancer diagnosis and image-guided surgery in the past decade. Many biomarkers unique to cancer cells or tumor microenvironment, such as cell surface receptors, hypoxia, secreted proteases and extracellular acidosis have been characterized, and can be used to distinguish cancer from normal tissue. A variety of optical imaging probes have been developed to target these biomarkers to improve tumor contrast over the background tissue. Unlike conventional anatomical and molecular imaging technologies, fluorescent imaging method benefits from its safety, high-spatial resolution and real-time capability, and therefore, has become a highly adoptable imaging method for tumor detection and image-guided surgery in clinics. In this review, we summarize recent progress in 'always-ON' and stimuli-activatable fluorescent imaging probes, and discuss their potentials in tumor detection and image-guided surgery.
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Affiliation(s)
- Chensu Wang
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA; Department of Cell Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA
| | - Zhaohui Wang
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA
| | - Tian Zhao
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA
| | - Yang Li
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA
| | - Gang Huang
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA
| | - Baran D Sumer
- Department of Otolaryngology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA.
| | - Jinming Gao
- Department of Pharmacology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA; Department of Otolaryngology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA.
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