1
|
Zhu K, Zhang Z, Li G, Sun J, Gu T, Ain NU, Zhang X, Li D. Extraction, structure, pharmacological activities and applications of polysaccharides and proteins isolated from snail mucus. Int J Biol Macromol 2024; 258:128878. [PMID: 38141709 DOI: 10.1016/j.ijbiomac.2023.128878] [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: 06/29/2023] [Revised: 11/16/2023] [Accepted: 12/16/2023] [Indexed: 12/25/2023]
Abstract
Snail mucus had medical applications for wound healing as early as ancient Greece and the late Han Dynasty (China). A literature search found 165 modern research papers discussing the extraction methods, chemical compositions, pharmacological activities, and applications of snail mucus. Thus, this review summarized the research progress on the extraction, structure, pharmacological activities, and applications of polysaccharides and proteins isolated from snail mucus. The extraction methods of snail mucus include natural secretion and stimulation with blunt force, spray, electricity, un-shelling, ultrasonic-assisted, and ozone-assisted. As a natural product, snail mucus mainly comprises two polysaccharides (glycosaminoglycan, dextran), seven glycoproteins (mucin, lectin), various antibacterial peptides, allantoin, glycolic acid, etc. It has pharmacological activities that encourage cell migration and proliferation, and promote angiogenesis and have antibacterial, anti-oxidative and anticancer properties. The mechanism of snail mucus' chemicals performing antibacterial and wound-healing was proposed. Snail mucus is a promising bioactive product with multiple medical applications and has great potential in the pharmaceutical and healthcare industries. Therefore, this review provides a valuable reference for researching and developing snail mucus.
Collapse
Affiliation(s)
- Kehan Zhu
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215021, China
| | - Zhiyi Zhang
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215021, China
| | - Guanqiang Li
- Department of Vascular Surgery, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215000, China
| | - Jiangcen Sun
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215021, China
| | - Tianyi Gu
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215021, China
| | - Noor Ul Ain
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215021, China
| | - Xicheng Zhang
- Department of Vascular Surgery, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215000, China.
| | - Duxin Li
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215021, China.
| |
Collapse
|
2
|
Joshua PE, Ilo CC, Ukachukwu UG, Odimegwu DC, Asomadu RO, Ezeorba TPC. Could eggshell membrane be an adjuvant for recombinant Hepatitis B vaccine?: A preliminary investigation. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2023; 9:28. [PMID: 37035528 PMCID: PMC10074367 DOI: 10.1186/s43094-023-00481-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 03/29/2023] [Indexed: 04/09/2023] Open
Abstract
Background Despite the invasiveness of the Hepatitis B infection, its vaccines are only formulated with FDA-approved alum-based adjuvants, which poorly elicit a lasting immune response, hence the need for a more effective adjuvant system. This study evaluated the immunogenicity and toxicity of eggshell membranes (ESM) when administered as an adjuvant for the recombinant HBV vaccine (rHBsAg) in albino mice. Differential white blood cell analysis, as well as the titer measurement of Immunoglobulin G, subclass G1 and G2a on indirect ELISA, was performed to measure the immune-modulatory potentials of ESM. Moreover, analysis of the liver marker enzyme (AST and ALT) and body/liver weights was performed to ascertain the toxicity level of ESM. Finally, Immuno-informatic analysis was used to investigate the immune-modulatory potential of individual member proteins of ESM. Results Our results showed a significant improvement in the experimental group's lymphocyte count after boost-dose administration compared to the controls, whereas there was no significant change in the granulocyte population. Furthermore, the formulations (ESM-rHBsAg) significantly improved IgG and IgG1 titers after each successive immunization. Body/liver weight and liver function showed ESM non-toxic to mice. The immunoinformatic analysis discovered ovalbumin, lysozyme-C, and UFM-1 as the member proteins of ESM with immune-modulatory activities of activating antigen-presenting cells (APC). Conclusion This study has provided a clue into the potential valorization of eggshell membranes and their peptides as an adjuvant for vaccines such as HBV. We recommend more in-depth molecular analysis to support our findings as well as foster real-life application. Supplementary Information The online version contains supplementary material available at 10.1186/s43094-023-00481-5.
Collapse
Affiliation(s)
- Parker Elijah Joshua
- grid.10757.340000 0001 2108 8257Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu State Nigeria
| | - Charity Chinyere Ilo
- grid.10757.340000 0001 2108 8257Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu State Nigeria
| | - Uzochukwu Gospel Ukachukwu
- grid.10757.340000 0001 2108 8257Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu State Nigeria
| | - Damian Chukwu Odimegwu
- grid.10757.340000 0001 2108 8257Department of Pharmaceutical Microbiology and Biotechnology, University of Nigeria, Nsukka, 410001 Enugu State Nigeria
| | - Rita Onyekachukwu Asomadu
- grid.10757.340000 0001 2108 8257Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu State Nigeria
| | - Timothy Prince Chidike Ezeorba
- grid.10757.340000 0001 2108 8257Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001 Enugu State Nigeria
- grid.10757.340000 0001 2108 8257Department of Genetics and Biotechnology, University of Nigeria, Nsukka, 410001 Enugu State Nigeria
- grid.6572.60000 0004 1936 7486Department of Molecular Biotechnology, School of Biosciences, University of Birmingham, Edgbaston, B15 2TT UK
| |
Collapse
|
3
|
Cheng SS, Qu YQ, Wu J, Yang GJ, Liu H, Wang W, Huang Q, Chen F, Li G, Wong CY, Wong VKW, Ma DL, Leung CH. Inhibition of the CDK9-cyclin T1 protein-protein interaction as a new approach against triple-negative breast cancer. Acta Pharm Sin B 2022; 12:1390-1405. [PMID: 35530158 PMCID: PMC9069406 DOI: 10.1016/j.apsb.2021.10.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/10/2021] [Accepted: 10/25/2021] [Indexed: 12/22/2022] Open
Abstract
Cyclin-dependent kinase 9 (CDK9) activity is correlated with worse outcomes of triple-negative breast cancer (TNBC) patients. The heterodimer between CDK9 with cyclin T1 is essential for maintaining the active state of the kinase and targeting this protein–protein interaction (PPI) may offer promising avenues for selective CDK9 inhibition. Herein, we designed and generated a library of metal complexes bearing the 7-chloro-2-phenylquinoline CˆN ligand and tested their activity against the CDK9–cyclin T1 PPI. Complex 1 bound to CDK9 via an enthalpically-driven binding mode, leading to disruption of the CDK9–cyclin T1 interaction in vitro and in cellulo. Importantly, complex 1 showed promising anti-metastatic activity against TNBC allografts in mice and was comparably active compared to cisplatin. To our knowledge, 1 is the first CDK9–cyclin T1 PPI inhibitor with anti-metastatic activity against TNBC. Complex 1 could serve as a new platform for the future design of more efficacious kinase inhibitors against cancer, including TNBC.
Collapse
Affiliation(s)
- Sha-Sha Cheng
- Institute of Chinese Medical Sciences and State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao 999078, China
| | - Yuan-Qing Qu
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macao 999078, China
| | - Jia Wu
- Institute of Chinese Medical Sciences and State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao 999078, China
| | - Guan-Jun Yang
- Institute of Chinese Medical Sciences and State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao 999078, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Hao Liu
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, China
| | - Wanhe Wang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, China
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an 710072, China
| | - Qi Huang
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macao 999078, China
| | - Feng Chen
- Institute of Chinese Medical Sciences and State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao 999078, China
| | - Guodong Li
- Institute of Chinese Medical Sciences and State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao 999078, China
| | - Chun-Yuen Wong
- Department of Chemistry, City University of Hong Kong, Hong Kong 999077, China
| | - Vincent Kam Wai Wong
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macao 999078, China
- Corresponding authors. Tel.: +853 8897 2408 (Vincent Kam Wai Wong), +852 3411 7075 (Dik-Lung Ma), +853 8822 4688 (Chung-Hang Leung).
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, China
- Corresponding authors. Tel.: +853 8897 2408 (Vincent Kam Wai Wong), +852 3411 7075 (Dik-Lung Ma), +853 8822 4688 (Chung-Hang Leung).
| | - Chung-Hang Leung
- Institute of Chinese Medical Sciences and State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao 999078, China
- Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Macao 999078, China
- Corresponding authors. Tel.: +853 8897 2408 (Vincent Kam Wai Wong), +852 3411 7075 (Dik-Lung Ma), +853 8822 4688 (Chung-Hang Leung).
| |
Collapse
|