1
|
Lai Z, Yuan X, Chen W, Chen H, Li B, Bi Z, Lyu Y, Shan A. Design of Proteolytic-Resistant Antifungal Peptides by Utilizing Minimum d-Amino Acid Ratios. J Med Chem 2024; 67:10891-10905. [PMID: 38934239 DOI: 10.1021/acs.jmedchem.4c00394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Antifungal peptides are an appealing alternative to standard antifungal medicines due to their unique mechanism of action and low-level resistance. However, their susceptibility to protease degradation keeps hindering their future development. Herein, a library was established to design peptides with protease resistance and high antifungal activity. The peptides were incorporated with minimal D-amino acids to further improve the protease stability. The most active peptide, IR3, demonstrated good antifungal activity and low toxicity, and its molecular integrity was maintained after protease hydrolysis for 8 h at 2 mg/mL. Furthermore, IR3 could permeate the fungal cell wall, disrupt the cell membrane, produce reactive oxygen species, and induce apoptosis in fungal cells. In vivo experiments confirmed that IR3 could effectively treat fungal keratitis. Collectively, these findings suggest that IR3 is a promising antifungal agent and may be beneficial in the design and development of protease-resistant antifungal peptides.
Collapse
Affiliation(s)
- Zhenheng Lai
- The College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Xiaojie Yuan
- The College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Wenwen Chen
- The College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Hongyu Chen
- The College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Bowen Li
- The College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Zhongpeng Bi
- The College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Yinfeng Lyu
- The College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Anshan Shan
- The College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
| |
Collapse
|
2
|
Ma D, Li J, Liu J, Wang R, Meng Q, Li J, Zhang S, Shan A. The gain effect of microbial consortia induced by adaptive domestication for efficient conversion of Chinese cabbage waste by anaerobic fermentation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 922:171313. [PMID: 38417508 DOI: 10.1016/j.scitotenv.2024.171313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/16/2024] [Accepted: 02/25/2024] [Indexed: 03/01/2024]
Abstract
The resource-based treatment of Chinese cabbage waste by anaerobic fermentation can effectively mitigate air, soil, and groundwater pollution. However, the compatibility between fermentative microorganisms and the environment might be a crucial limiting factor for the resource recycling of Chinese cabbage waste. Therefore, the gain effect of microbial consortia (JMRS, JMRST, JMRSZ, JCCW, JCCWT and JCCWZ) induced by adaptive domestication for efficient conversion of Chinese cabbage waste by anaerobic fermentation were explored in this study. A total of 42 single subsamples with same weights were randomly divided into seven treatments: sterile deionized water (Control); anaerobic fermentation inoculated with JMRS (MRS); anaerobic fermentation inoculated with JMRST (MRST); anaerobic fermentation inoculated with JMRSZ (MRSZ); anaerobic fermentation inoculated with JCCW (CCW); anaerobic fermentation inoculated with JCCWT (CCWT); anaerobic fermentation inoculated with JCCWZ (CCWZ) and samples were taken on days 30 and 60 after anaerobic fermentation. The results exhibited that all the treatments contributed to high levels of lactic acid (178.77-201.79 g/kg dry matter) and low levels of ammonia-N (12.99-21.03 g/kg total nitrogen). Meanwhile, MRSZ enhanced (p < 0.05) acetic acid levels (1.53 g/kg dry matter) and resulted in the lowest yeast counts. Microbiologically, the addition of microbial consortia decreased the linear discriminant analysis (LDA) scores of Massilia and Stenotrophomonas maltophilia. Moreover, MRSZ enriched (p < 0.05) Lactobacillus hilgardii, and decreased (p < 0.05) the abundance of bacteria containing mobile elements and potentially pathogenic bacteria. In conclusion, JMRSZ improved the efficient conversion of Chinese cabbage waste for resource utilization.
Collapse
Affiliation(s)
- Dongbo Ma
- College of animal science and technology, Northeast Agricultural University, Harbin, China
| | - Jiawei Li
- College of animal science and technology, Northeast Agricultural University, Harbin, China
| | - Jingkai Liu
- College of animal science and technology, Northeast Agricultural University, Harbin, China
| | - Ruixue Wang
- College of animal science and technology, Northeast Agricultural University, Harbin, China
| | - Qingwei Meng
- College of animal science and technology, Northeast Agricultural University, Harbin, China
| | - Jianping Li
- College of animal science and technology, Northeast Agricultural University, Harbin, China
| | - Sujiang Zhang
- Tarim Key Laboratory of Animal Husbandry Science and Technology, College of Animal Science and Technology, Tarim University, Alar 843300, China
| | - Anshan Shan
- College of animal science and technology, Northeast Agricultural University, Harbin, China.
| |
Collapse
|
3
|
Zhang J, Guo H, Liu M, Tang K, Li S, Fang Q, Du H, Zhou X, Lin X, Yang Y, Huang B, Yang D. Recent design strategies for boosting chemodynamic therapy of bacterial infections. EXPLORATION (BEIJING, CHINA) 2024; 4:20230087. [PMID: 38855616 PMCID: PMC11022619 DOI: 10.1002/exp.20230087] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/30/2023] [Indexed: 06/11/2024]
Abstract
The emergence of drug-resistant bacteria poses a significant threat to people's lives and health as bacterial infections continue to persist. Currently, antibiotic therapy remains the primary approach for tackling bacterial infections. However, the escalating rates of drug resistance coupled with the lag in the development of novel drugs have led to diminishing effectiveness of conventional treatments. Therefore, the development of nonantibiotic-dependent therapeutic strategies has become imperative to impede the rise of bacterial resistance. The emergence of chemodynamic therapy (CDT) has opened up a new possibility due to the CDT can convert H2O2 into •OH via Fenton/Fenton-like reaction for drug-resistant bacterial treatment. However, the efficacy of CDT is limited by a variety of practical factors. To overcome this limitation, the sterilization efficiency of CDT can be enhanced by introducing the therapeutics with inherent antimicrobial capability. In addition, researchers have explored CDT-based combined therapies to augment its antimicrobial effects and mitigate its potential toxic side effects toward normal tissues. This review examines the research progress of CDT in the antimicrobial field, explores various strategies to enhance CDT efficacy and presents the synergistic effects of CDT in combination with other modalities. And last, the current challenges faced by CDT and the future research directions are discussed.
Collapse
Affiliation(s)
- Junjie Zhang
- School of Fundamental SciencesBengbu Medical CollegeBengbuChina
| | - Haiyang Guo
- School of Fundamental SciencesBengbu Medical CollegeBengbuChina
| | - Ming Liu
- School of Fundamental SciencesBengbu Medical CollegeBengbuChina
| | - Kaiyuan Tang
- School of Fundamental SciencesBengbu Medical CollegeBengbuChina
| | - Shengke Li
- Macao Centre for Research and Development in Chinese MedicineInstitute of Chinese Medical SciencesUniversity of MacauTaipaMacau SARChina
| | - Qiang Fang
- School of Fundamental SciencesBengbu Medical CollegeBengbuChina
| | - Hengda Du
- School of Fundamental SciencesBengbu Medical CollegeBengbuChina
| | - Xiaogang Zhou
- Anhui Key Laboratory of Infection and Immunity, School of Basic MedicineBengbu Medical CollegeBengbuChina
| | - Xin Lin
- School of Optometry and Ophthalmology and Eye Hospital, State Key Laboratory of OptometryOphthalmology and Vision ScienceWenzhou Medical UniversityWenzhouZhejiangChina
| | - Yanjun Yang
- School of Electrical and Computer Engineering, College of EngineeringThe University of GeorgiaAthensGeorgiaUSA
| | - Bin Huang
- Academy of Integrative Medicine, Fujian Key Laboratory of Integrative Medicine on GeriatricsFujian University of Traditional Chinese MedicineFuzhouFujianChina
| | - Dongliang Yang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), School of Physical and Mathematical SciencesNanjing Tech University (NanjingTech)NanjingChina
| |
Collapse
|
4
|
Ma J, Yan L, Yang J, He Y, Wu L. Effect of Modification Strategies on the Biological Activity of Peptides/Proteins. Chembiochem 2024; 25:e202300481. [PMID: 38009768 DOI: 10.1002/cbic.202300481] [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: 06/28/2023] [Revised: 11/20/2023] [Accepted: 11/26/2023] [Indexed: 11/29/2023]
Abstract
Covalent attachment of biologically active peptides/proteins with functional moieties is an effective strategy to control their biodistribution, pharmacokinetics, enzymatic digestion, and toxicity. This review focuses on the characteristics of different modification strategies and their effects on the biological activity of peptides/proteins and illustrates their relevant applications and potential.
Collapse
Affiliation(s)
- Jian Ma
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liang Yan
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jingkui Yang
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yujian He
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Li Wu
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| |
Collapse
|
5
|
Su Y, Sun T, Gao J, Zhang C, Liu X, Bi C, Wang J, Shan A. Anti-Proteolytic Peptide R7I Protects the Intestinal Barrier and Alleviates Fatty Acid Malabsorption in Salmonella typhimurium-Infected Mice. Int J Mol Sci 2023; 24:16409. [PMID: 38003599 PMCID: PMC10670956 DOI: 10.3390/ijms242216409] [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: 10/09/2023] [Revised: 10/26/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
With a wide range of hosts, environmental adaptation, and antibiotic resistance, Salmonella typhimurium is one of the most common causes of food poisoning in the world. Infection with Salmonella typhimurium not only results in intestinal inflammation but also damages the intestinal barrier and interferes with the host's ability to absorb nutrients. It is imperative to find alternatives to antibiotics for eradicating bacteria, reducing intestinal damage, and reestablishing nutrient absorption, especially given that antibiotics are currently prohibited. This research aims to understand the protective role of anti-proteolytic peptide R7I on the gut in the setting of Salmonella typhimurium infection and its impact on nutritional absorption, maybe offering an alternative to antibiotics for bacterial killing. The findings demonstrated that R7I reduced the production of inflammatory factors, including IL-6, TNF-α, and L-1β in the jejunum and decreased the expression of genes like TLR4 and NF-κB in the jejunum (p < 0.05). R7I enhanced antioxidant capacity and preserved the antioxidant/pro-oxidant balance in the jejunum (p < 0.05). R7I also normalized intestinal shape and restored tight junction protein expression. Fatty acid binding protein 2 (FABP2) and fatty acid transport protein 4 (FATP4) expression in the jejunum was restored by R7I. In addition, serum-free fatty acids and lipid metabolites were significantly higher in the R7I group than in the control group (p < 0.05). Overall, the anti-enzyme peptide R7I maintained the healthy state of the intestine and alleviated the abnormal fatty acid absorption caused by bacterial infection.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Jiajun Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (Y.S.); (T.S.); (J.G.); (C.Z.); (X.L.); (C.B.)
| | - Anshan Shan
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (Y.S.); (T.S.); (J.G.); (C.Z.); (X.L.); (C.B.)
| |
Collapse
|
6
|
Shao C, Jian Q, Li B, Zhu Y, Yu W, Li Z, Shan A. Ultrashort All-Hydrocarbon Stapled α-Helix Amphiphile as a Potent and Stable Antimicrobial Compound. J Med Chem 2023; 66:11414-11427. [PMID: 37531494 DOI: 10.1021/acs.jmedchem.3c00856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
The ravaging effect of drug-resistant bacteria has heightened the need for the development of membrane-soluble antimicrobial peptides (AMPs). However, their potential for clinical use is hindered by issues such as poor biocompatibility, salt sensitivity, and proteolytic lability. In this study, a series of ultrashort stapled cyclization heptapeptides were obtained by inserting all-hydrocarbon staples. StRRL with the highest therapeutic index (TI = 36.3) was selected after evaluating its antibacterial and toxic activity. Furthermore, stRRL demonstrated exceptional performance in high-protease and high-salt environments, making it an effective weapon against bacteria like Escherichia coli in a mouse peritonitis-sepsis model. The membrane lytic mechanism of stRRL, which operates from outside to inside, gives it a low drug-resistant tendency. This suggests that stRRL has the potential to replace antibiotics as a powerful candidate in tackling bacterial infection. In conclusion, the ultrashort all-hydrocarbon stapled antimicrobial amphiphiles inaugurated a novel entrance to the advancements of highly stable peptide compounds.
Collapse
Affiliation(s)
- Changxuan Shao
- Laboratory of Molecular Nutrition and Immunity. College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| | - Qiao Jian
- Laboratory of Molecular Nutrition and Immunity. College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| | - Bowen Li
- Laboratory of Molecular Nutrition and Immunity. College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| | - Yongjie Zhu
- Laboratory of Molecular Nutrition and Immunity. College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| | - Weikang Yu
- Laboratory of Molecular Nutrition and Immunity. College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| | - Zhongyu Li
- Laboratory of Molecular Nutrition and Immunity. College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| | - Anshan Shan
- Laboratory of Molecular Nutrition and Immunity. College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| |
Collapse
|
7
|
He S, Yang Z, Li X, Wu H, Zhang L, Shan A, Wang J. Boosting stability and therapeutic potential of proteolysis-resistant antimicrobial peptides by end-tagging β-naphthylalanine. Acta Biomater 2023; 164:175-194. [PMID: 37100185 DOI: 10.1016/j.actbio.2023.04.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 04/16/2023] [Accepted: 04/19/2023] [Indexed: 04/28/2023]
Abstract
Recently, much emphasis has been placed on solving the intrinsic defects of antimicrobial peptides (AMPs), especially their susceptibility to protease digestion for the systemic application of antibacterial biomaterials. Although many strategies have increased the protease stability of AMPs, antimicrobial activity was severely compromised, thereby substantially weakening their therapeutic effect. To address this issue, we introduced hydrophobic group modifications at the N-terminus of proteolysis-resistant AMPs D1 (AArIIlrWrFR) through end-tagging with stretches of natural amino acids (W and I), unnatural amino acid (Nal) and fatty acids. Of these peptides, N1 tagged with a Nal at N-terminus showed the highest selectivity index (GMSI = 19.59), with a 6.73-fold improvement over D1. In addition to potent broad-spectrum antimicrobial activity, N1 also exhibited high antimicrobial stability toward salts, serum and proteases in vitro and ideal biocompatibility and therapeutic efficacy in vivo. Furthermore, N1 killed bacteria through multiple mechanisms, involving disruption of bacterial membranes and inhibition of bacterial energy metabolism. Indeed, appropriate terminal hydrophobicity modification opens up new avenues for developing and applying high-stability peptide-based antibacterial biomaterials. STATEMENT OF SIGNIFICANCE: To improve the potency and stability of proteolysis-resistant antimicrobial peptides (AMPs) without increasing toxicity, we constructed a convenient and tunable platform based on different compositions and lengths of hydrophobic end modifications. By tagging an Nal at the N-terminal, the obtained target compound N1 exhibited strong antimicrobial activity and desirable stability under multifarious environments in vitro (protease, salts and serum), and also showed favorable biocompatibility and therapeutic efficacy in vivo. Notably, N1exerted its bactericidal effect by damaging bacterial cell membranes and inhibiting bacterial energy metabolism in a dual mode. The findings provide a potential method for designing or optimizing proteolysis-resistant AMPs thus promoting the development and application of peptide-based antibacterial biomaterial.
Collapse
Affiliation(s)
- Shiqi He
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Zhanyi Yang
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Xuefeng Li
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Hua Wu
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Licong Zhang
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Anshan Shan
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, P. R. China.
| | - Jiajun Wang
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, P. R. China.
| |
Collapse
|
8
|
Li G, Lai Z, Shan A. Advances of Antimicrobial Peptide-Based Biomaterials for the Treatment of Bacterial Infections. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206602. [PMID: 36722732 PMCID: PMC10104676 DOI: 10.1002/advs.202206602] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/12/2023] [Indexed: 05/10/2023]
Abstract
Owing to the increase in multidrug-resistant bacterial isolates in hospitals globally and the lack of truly effective antimicrobial agents, antibiotic resistant bacterial infections have increased substantially. There is thus an urgent need to develop new antimicrobial drugs and their related formulations. In recent years, natural antimicrobial peptides (AMPs), AMP optimization, self-assembled AMPs, AMP hydrogels, and biomaterial-assisted delivery of AMPs have shown great potential in the treatment of bacterial infections. In this review, it is focused on the development prospects and shortcomings of various AMP-based biomaterials for treating animal model infections, such as abdominal, skin, and eye infections. It is hoped that this review will inspire further innovations in the design of AMP-based biomaterials for the treatment of bacterial infections and accelerate their commercialization.
Collapse
Affiliation(s)
- Guoyu Li
- The Institute of Animal NutritionNortheast Agricultural UniversityHarbin150030P. R. China
| | - Zhenheng Lai
- The Institute of Animal NutritionNortheast Agricultural UniversityHarbin150030P. R. China
| | - Anshan Shan
- The Institute of Animal NutritionNortheast Agricultural UniversityHarbin150030P. R. China
| |
Collapse
|