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Peng C, Xu Y, Wu J, Wu D, Zhou L, Xia X. TME-Related Biomimetic Strategies Against Cancer. Int J Nanomedicine 2024; 19:109-135. [PMID: 38192633 PMCID: PMC10773252 DOI: 10.2147/ijn.s441135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/21/2023] [Indexed: 01/10/2024] Open
Abstract
The tumor microenvironment (TME) plays an important role in various stages of tumor generation, metastasis, and evasion of immune monitoring and treatment. TME targeted therapy is based on TME components, related pathways or active molecules as therapeutic targets. Therefore, TME targeted therapy based on environmental differences between TME and normal cells has been widely studied. Biomimetic nanocarriers with low clearance, low immunogenicity, and high targeting have enormous potential in tumor treatment. This review introduces the composition and characteristics of TME, including cancer‑associated fibroblasts (CAFs), extracellular matrix (ECM), tumor blood vessels, non-tumor cells, and the latest research progress of biomimetic nanoparticles (NPs) based on TME. It also discusses the opportunities and challenges of clinical transformation of biomimetic nanoparticles.
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Affiliation(s)
- Cheng Peng
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, People’s Republic of China
| | - Yilin Xu
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, People’s Republic of China
| | - Jing Wu
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, People’s Republic of China
| | - Donghai Wu
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, People’s Republic of China
| | - Lili Zhou
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, People’s Republic of China
| | - Xinhua Xia
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, People’s Republic of China
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2
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Sun H, Li Y, Zhang P, Xing H, Zhao S, Song Y, Wan D, Yu J. Targeting toll-like receptor 7/8 for immunotherapy: recent advances and prospectives. Biomark Res 2022; 10:89. [PMID: 36476317 PMCID: PMC9727882 DOI: 10.1186/s40364-022-00436-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 11/19/2022] [Indexed: 12/12/2022] Open
Abstract
Toll-like receptors (TLRs) are a large family of proteins that are expressed in immune cells and various tumor cells. TLR7/8 are located in the intracellular endosomes, participate in tumor immune surveillance and play different roles in tumor growth. Activation of TLRs 7 and 8 triggers induction of a Th1 type innate immune response in the highly sophisticated process of innate immunity signaling with the recent research advances involving the small molecule activation of TLR 7 and 8. The wide range of expression and clinical significance of TLR7/TLR8 in different kinds of cancers have been extensively explored. TLR7/TLR8 can be used as novel diagnostic biomarkers, progression and prognostic indicators, and immunotherapeutic targets for various tumors. Although the mechanism of action of TLR7/8 in cancer immunotherapy is still incomplete, TLRs on T cells are involved in the regulation of T cell function and serve as co-stimulatory molecules and activate T cell immunity. TLR agonists can activate T cell-mediated antitumor responses with both innate and adaptive immune responses to improve tumor therapy. Recently, novel drugs of TLR7 or TLR8 agonists with different scaffolds have been developed. These agonists lead to the induction of certain cytokines and chemokines that can be applied to the treatment of some diseases and can be used as good adjutants for vaccines. Furthermore, TLR7/8 agonists as potential therapeutics for tumor-targeted immunotherapy have been developed. In this review, we summarize the recent advances in the development of immunotherapy strategies targeting TLR7/8 in patients with various cancers and chronic hepatitis B.
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Affiliation(s)
- Hao Sun
- grid.412633.10000 0004 1799 0733Department of Radiotherapy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Yingmei Li
- grid.412633.10000 0004 1799 0733Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Peng Zhang
- grid.412633.10000 0004 1799 0733Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Haizhou Xing
- grid.412633.10000 0004 1799 0733Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Song Zhao
- grid.412633.10000 0004 1799 0733Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Yongping Song
- grid.412633.10000 0004 1799 0733Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Dingming Wan
- grid.412633.10000 0004 1799 0733Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Jifeng Yu
- grid.412633.10000 0004 1799 0733Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China ,grid.256922.80000 0000 9139 560XHenan International Joint Laboratory of Nuclear Protein Gene Regulation, Henan University College of Medicine, Kaifeng, 475004 Henan China
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3
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Zhou M, Zou X, Cheng K, Zhong S, Su Y, Wu T, Tao Y, Cong L, Yan B, Jiang Y. The role of cell-penetrating peptides in potential anti-cancer therapy. Clin Transl Med 2022; 12:e822. [PMID: 35593206 PMCID: PMC9121317 DOI: 10.1002/ctm2.822] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/28/2022] [Accepted: 04/04/2022] [Indexed: 12/19/2022] Open
Abstract
Due to the complex physiological structure, microenvironment and multiple physiological barriers, traditional anti-cancer drugs are severely restricted from reaching the tumour site. Cell-penetrating peptides (CPPs) are typically made up of 5-30 amino acids, and can be utilised as molecular transporters to facilitate the passage of therapeutic drugs across physiological barriers. Up to now, CPPs have widely been used in many anti-cancer treatment strategies, serving as an excellent potential choice for oncology treatment. However, their drawbacks, such as the lack of cell specificity, short duration of action, poor stability in vivo, compatibility problems (i.e. immunogenicity), poor therapeutic efficacy and formation of unwanted metabolites, have limited their further application in cancer treatment. The cellular uptake mechanisms of CPPs involve mainly endocytosis and direct penetration, but still remain highly controversial in academia. The CPPs-based drug delivery strategy could be improved by clever design or chemical modifications to develop the next-generation CPPs with enhanced cell penetration capability, stability and selectivity. In addition, some recent advances in targeted cell penetration that involve CPPs provide some new ideas to optimise CPPs.
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Affiliation(s)
- Meiling Zhou
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, Hunan, China.,School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Xi Zou
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, Hunan, China.,School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Kexin Cheng
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, Hunan, China.,School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Suye Zhong
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, Hunan, China.,School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Yangzhou Su
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, Hunan, China.,School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Tao Wu
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, Hunan, China.,School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Yongguang Tao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, School of Basic Medicine, Central South University, Changsha, Hunan, China
| | - Li Cong
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, Hunan, China.,School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Bin Yan
- Department of Pathology, The Second Clinical Medical College of Jinan University, The First Affiliated Hospital Southern University of Science and Technology, Shenzhen People's Hospital, Shenzhen, China
| | - Yiqun Jiang
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, Hunan, China.,School of Medicine, Hunan Normal University, Changsha, Hunan, China
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4
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Li Y, Xu M, Zhang Z, Halimu G, Li Y, Li Y, Gu W, Zhang B, Wang X. In vitro study on the toxicity of nanoplastics with different charges to murine splenic lymphocytes. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127508. [PMID: 34688005 DOI: 10.1016/j.jhazmat.2021.127508] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
Nanoplastics can be ingested by organisms and penetrate biological barriers to affect multiple physiological functions. However, few studies have focused on the effects of nanoplastics on the mammalian immune system. We evaluated the effects and underlying mechanism of nanoplastics of varying particle sizes and surface charges on murine splenic lymphocytes. We found that nanoplastics penetrated into splenic lymphocytes and that nanoplastics of a diameter of 50 nm were absorbed more efficiently by the cells. The nanoplastics decreased cell viability, induce cell apoptosis, up-regulated apoptosis-related protein expression, elicited the production of reactive oxygen species, altered mitochondrial membrane potential, and impaired mitochondrial function. Positively charged nanoplastics exerted the strongest toxicity. Negatively charged and uncharged nanoplastics caused oxidative stress and mitochondrial structural damage in lymphocytes, while positively charged nanoplastics induced endogenous apoptosis directly. Moreover, nanoplastics inhibited the expression of activated T cell markers on the T cell surface, while inhibiting the differentiation of CD8+ T cells and the expression of helper T cell cytokines. In terms of the mechanism, a series of key signaling molecules in the pathways of T cell activation and function were markedly down-regulated after exposure to nanoplastics.
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Affiliation(s)
- Yuqi Li
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 WenHua Road, Shenyang 110016, PR China; University of Chinese Academy of Sciences, 19 YuQuan Road, Beijing 100049, PR China
| | - Mingkai Xu
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 WenHua Road, Shenyang 110016, PR China; Key Laboratory of Pollution Ecology and Environment Engineering, Chinese Academy of Sciences, 72 WenHua Road, Shenyang 110016, PR China.
| | - Zhichun Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 WenHua Road, Shenyang 110016, PR China; University of Chinese Academy of Sciences, 19 YuQuan Road, Beijing 100049, PR China
| | - Gulinare Halimu
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 WenHua Road, Shenyang 110016, PR China; University of Chinese Academy of Sciences, 19 YuQuan Road, Beijing 100049, PR China
| | - Yongqiang Li
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 WenHua Road, Shenyang 110016, PR China; University of Chinese Academy of Sciences, 19 YuQuan Road, Beijing 100049, PR China
| | - Yansheng Li
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 WenHua Road, Shenyang 110016, PR China; University of Chinese Academy of Sciences, 19 YuQuan Road, Beijing 100049, PR China
| | - Wu Gu
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 WenHua Road, Shenyang 110016, PR China; University of Chinese Academy of Sciences, 19 YuQuan Road, Beijing 100049, PR China
| | - Bowen Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 WenHua Road, Shenyang 110016, PR China; University of Chinese Academy of Sciences, 19 YuQuan Road, Beijing 100049, PR China
| | - Xiujuan Wang
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 WenHua Road, Shenyang 110016, PR China; Key Laboratory of Pollution Ecology and Environment Engineering, Chinese Academy of Sciences, 72 WenHua Road, Shenyang 110016, PR China
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5
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Davoodi Z, Shafiee F. Internalizing RGD, a great motif for targeted peptide and protein delivery: a review article. Drug Deliv Transl Res 2022; 12:2261-2274. [PMID: 35015253 DOI: 10.1007/s13346-022-01116-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2022] [Indexed: 01/10/2023]
Abstract
Understanding that cancer is one of the most important health problems, especially in advanced societies, is not difficult. The term of targeted cancer therapy has also been well known as an ideal treatment strategy in the recent years. Peptides with ability to specifically recognize the cancer cells with suitable penetration properties have been used as the targeting motif in this regard. In the present review article, we focus on an individual RGD-derived peptide with ability to recognize the integrin receptor on the cancer cell surface like its ancestor with an additional outstanding feature to penetrate to extravascular space of tumor and ability to penetrate to cancer cells unlike the original peptide. This peptide which has been named "internalizing RGD" or "iRGD" has been the focus of researches as a new targeting motif since it was discovered. To date, many types of molecules have been associated with this peptide for their targeted delivery to cancer cells. In this review article, we have discussed a summary of penetration mechanisms of iRGD and all introduced peptides and proteins attached to this attractive cell-penetrating peptide and have expressed the results of the studies.
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Affiliation(s)
- Zeinabosadat Davoodi
- Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Hezar Jarib Ave., Isfahan, Iran
| | - Fatemeh Shafiee
- Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Hezar Jarib Ave., Isfahan, Iran.
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6
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Fujii E, Takata T, Yamano H, Honma M, Shimokawa M, Sasaki H, Shikano M. Study on Horizon Scanning by Citation Network Analysis and Text Mining: A Focus on Drug Development Related to T Cell Immune Response. Ther Innov Regul Sci 2021; 56:230-243. [PMID: 34811710 PMCID: PMC8608232 DOI: 10.1007/s43441-021-00351-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 10/27/2021] [Indexed: 12/20/2022]
Abstract
Certain innovative technologies applied to medical product development require novel evaluation approaches and/or regulations. Horizon scanning for such technologies will help regulators prepare, allowing earlier access to the product for patients and an improved benefit/risk ratio. This study investigates whether citation network analysis and text mining of scientific papers could be a tool for horizon scanning in the field of immunology, which has developed over a long period, and attempts to grasp the latest research trends. As the result of the analysis, the academic landscape of the immunology field was identified by classifying 90,450 papers (obtained from PubMED) containing the keyword “immune* and t lymph*” into 38 clusters. The clustering was indicative of the research landscape of the immunology field. To confirm this, immune checkpoint inhibitors were used as a retrospective test topic of therapeutics with new mechanisms of action. Retrospective clustering around immune checkpoint inhibitors was found, supporting this approach. The analysis of the research trends over the last 3 to 5 years in this field revealed several candidate topics, including ARID1A gene mutation, CD300e, and tissue resident memory T cells, which shows notable progress and should be monitored for future possible product development. Our results have demonstrated the possibility that citation network analysis and text mining of scientific papers can be a useful objective tool for horizon scanning of life science fields such as immunology.
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Affiliation(s)
- Erika Fujii
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, 162-8601, Japan
| | - Takuya Takata
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, 162-8601, Japan
| | - Hiroko Yamano
- Institute for Future Initiatives, The University of Tokyo, Bunkyo-ku, Japan
| | - Masashi Honma
- Department of Pharmacy, The University of Tokyo Hospital, Bunkyo-ku, Japan
| | - Masafumi Shimokawa
- Faculty of Pharmaceutical Sciences, Sanyo-Onoda City University, Sanyoonoda-shi, Japan
| | - Hajime Sasaki
- Institute for Future Initiatives, The University of Tokyo, Bunkyo-ku, Japan
| | - Mayumi Shikano
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, 162-8601, Japan.
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7
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Li Y, Xu M, Li Y, Gu W, Halimu G, Li Y, Zhang Z, Zhou L, Liao H, Yao S, Zhang H, Zhang C. A recombinant protein containing influenza viral conserved epitopes and superantigen induces broad-spectrum protection. eLife 2021; 10:e71725. [PMID: 34783655 PMCID: PMC8635977 DOI: 10.7554/elife.71725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 11/13/2021] [Indexed: 01/22/2023] Open
Abstract
Influenza pandemics pose public health threats annually for lacking vaccine that provides cross-protection against novel and emerging influenza viruses. Combining conserved antigens that induce cross-protective antibody responses with epitopes that activate cross-protective T cell responses might be an attractive strategy for developing a universal vaccine. In this study, we constructed a recombinant protein named NMHC that consists of influenza viral conserved epitopes and a superantigen fragment. NMHC promoted the maturation of bone marrow-derived dendritic cells and induced CD4+ T cells to differentiate into Th1, Th2, and Th17 subtypes. Mice vaccinated with NMHC produced high levels of immunoglobulins that cross-bound to HA fragments from six influenza virus subtypes with high antibody titers. Anti-NMHC serum showed potent hemagglutinin inhibition effects to highly divergent group 1 (H1 subtype) and group 2 (H3 subtype) influenza virus strains. Furthermore, purified anti-NMHC antibodies bound to multiple HAs with high affinities. NMHC vaccination effectively protected mice from infection and lung damage when exposed to two subtypes of H1N1 influenza virus. Moreover, NMHC vaccination elicited CD4+ and CD8+ T cell responses that cleared the virus from infected tissues and prevented virus spread. In conclusion, this study provides proof of concept that NMHC vaccination triggers B and T cell immune responses against multiple influenza virus infections. Therefore, NMHC might be a candidate universal broad-spectrum vaccine for the prevention and treatment of multiple influenza viruses.
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Affiliation(s)
- Yansheng Li
- Institute of Applied Ecology, Chinese Academy of SciencesShenyangChina
- University of Chinese Academy of SciencesBeijingChina
- Key Laboratory of Superantigen Research, Shenyang Bureau of Science and TechnologyShenyangChina
| | - Mingkai Xu
- Institute of Applied Ecology, Chinese Academy of SciencesShenyangChina
- Key Laboratory of Superantigen Research, Shenyang Bureau of Science and TechnologyShenyangChina
| | - Yongqiang Li
- Institute of Applied Ecology, Chinese Academy of SciencesShenyangChina
- University of Chinese Academy of SciencesBeijingChina
- Key Laboratory of Superantigen Research, Shenyang Bureau of Science and TechnologyShenyangChina
| | - Wu Gu
- Institute of Applied Ecology, Chinese Academy of SciencesShenyangChina
- Key Laboratory of Superantigen Research, Shenyang Bureau of Science and TechnologyShenyangChina
| | - Gulinare Halimu
- Institute of Applied Ecology, Chinese Academy of SciencesShenyangChina
- University of Chinese Academy of SciencesBeijingChina
- Key Laboratory of Superantigen Research, Shenyang Bureau of Science and TechnologyShenyangChina
| | - Yuqi Li
- Institute of Applied Ecology, Chinese Academy of SciencesShenyangChina
- University of Chinese Academy of SciencesBeijingChina
- Key Laboratory of Superantigen Research, Shenyang Bureau of Science and TechnologyShenyangChina
| | - Zhichun Zhang
- Institute of Applied Ecology, Chinese Academy of SciencesShenyangChina
- University of Chinese Academy of SciencesBeijingChina
- Key Laboratory of Superantigen Research, Shenyang Bureau of Science and TechnologyShenyangChina
| | - Libao Zhou
- Chengda Biotechnology Co. LtdLiaoningChina
| | - Hui Liao
- Chengda Biotechnology Co. LtdLiaoningChina
| | | | - Huiwen Zhang
- Institute of Applied Ecology, Chinese Academy of SciencesShenyangChina
- Key Laboratory of Superantigen Research, Shenyang Bureau of Science and TechnologyShenyangChina
| | - Chenggang Zhang
- Institute of Applied Ecology, Chinese Academy of SciencesShenyangChina
- Key Laboratory of Superantigen Research, Shenyang Bureau of Science and TechnologyShenyangChina
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8
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Li Y, Xu M, Li Y, Zhang Z, Gu W, Halimu G, Li Y, Zhang H, Zhang C. Induction of CD4 + regulatory T cells by stimulation with Staphylococcal Enterotoxin C2 through different signaling pathways. Biomed Pharmacother 2021; 143:112204. [PMID: 34560552 DOI: 10.1016/j.biopha.2021.112204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 12/20/2022] Open
Abstract
As a member of superantigens, Staphylococcal Enterotoxin C2 (SEC2) can potently activate T cells expressing specific Vβ repertoires and has been applied in clinic for tumor immunotherapy in China for more than 20 years. However, excessive activation of T cells by over-stimulation with superantigen are always followed by eliciting regulatory T cells (Tregs) induction and functional immunosuppression, which brings uncertainties to SEC2 application in tumor immunotherapy. In this study, we found that SEC2 could induce CD4+CD25+Foxp3+ Tregs from the murine splenocytes in dose and time related manners. The induced Tregs with high expression of GITR and CTLA-4 and low expression of CD127 were TCR Vβ8.2-specific and have character of IL-10 production in a SEC2 dose-depended manner. Importantly, SEC2-induced CD4+ Tregs showed the potent capacity of suppressing proliferation of intact murine splenocytes response to SEC2. Furthermore, by using specific inhibitors or neutralizing antibody, we proved that the signaling pathways of TCR-NFAT/AP-1, IL-2-STAT5, and TGF-β-Smad3 play crucial roles in Tregs induction by SEC2. These findings will help us better understand the balance of immune stimulation and immunosuppression mediated by SEC2 and provide valuable guidance for SEC2 application in antitumor immunology.
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Affiliation(s)
- Yongqiang Li
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China; University of Chinese Academy of Sciences, Beijing, China
| | - Mingkai Xu
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China; Key Laboratory of Superantigen Research, Shenyang Bureau of Science and Technology, Shenyang, China.
| | - Yansheng Li
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China; University of Chinese Academy of Sciences, Beijing, China
| | - Zhichun Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China; University of Chinese Academy of Sciences, Beijing, China
| | - Wu Gu
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China; University of Chinese Academy of Sciences, Beijing, China
| | - Gulinare Halimu
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yuqi Li
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China; University of Chinese Academy of Sciences, Beijing, China
| | - Huiwen Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China; Key Laboratory of Superantigen Research, Shenyang Bureau of Science and Technology, Shenyang, China
| | - Chenggang Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China; Key Laboratory of Superantigen Research, Shenyang Bureau of Science and Technology, Shenyang, China
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9
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Kang S, Lee S, Park S. iRGD Peptide as a Tumor-Penetrating Enhancer for Tumor-Targeted Drug Delivery. Polymers (Basel) 2020; 12:E1906. [PMID: 32847045 PMCID: PMC7563641 DOI: 10.3390/polym12091906] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/20/2020] [Accepted: 08/21/2020] [Indexed: 02/06/2023] Open
Abstract
The unique structure and physiology of a tumor microenvironment impede intra-tumoral penetration of chemotherapeutic agents. A novel iRGD peptide that exploits the tumor microenvironment can activate integrin-dependent binding to tumor vasculatures and neuropilin-1 (NRP-1)-dependent transport to tumor tissues. Recent studies have focused on its dual-targeting ability to achieve enhanced penetration of chemotherapeutics for the efficient eradication of cancer cells. Both the covalent conjugation and the co-administration of iRGD with chemotherapeutic agents and engineered delivery vehicles have been explored. Interestingly, the iRGD-mediated drug delivery also enhances penetration through the blood-brain barrier (BBB). Recent studies have shown its synergistic effect with BBB disruptive techniques. The efficacy of immunotherapy involving immune checkpoint blockades has also been amplified by using iRGD as a targeting moiety. In this review, we presented the recent advances in iRGD technology, focusing on cancer treatment modalities, including the current clinical trials using iRGD. The iRGD-mediated nano-carrier system could serve as a promising strategy in drug delivery to the deeper tumor regions, and be combined with various therapeutic interventions due to its novel targeting ability.
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Affiliation(s)
| | | | - Soyeun Park
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu 42601, Korea; (S.K.); (S.L.)
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