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Antony A, Purayil AK, Olakkaran S, Dhannura S, Shekh S, Gowd KH, Gurushankara HP. Antimicrobial and antitumor properties of anuran peptide temporin-SHf induce apoptosis in A549 lung cancer cells. Amino Acids 2024; 56:12. [PMID: 38319435 PMCID: PMC10847208 DOI: 10.1007/s00726-023-03373-3] [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: 07/25/2023] [Accepted: 11/20/2023] [Indexed: 02/07/2024]
Abstract
Temporin-SHf is a linear, ultra-short, hydrophobic, α-helix, and phe-rich cationic antimicrobial peptide. The antitumor activities and mechanism of temporin-SHf-induced cancer cell death are unknown. The temporin-SHf was synthesized by solid-phase Fmoc chemistry and antimicrobial and antitumor activities were investigated. Temporin-SHf was microbiocidal, non-hemolytic, and cytotoxic to human cancer cells but not to non-tumorigenic cells. It affected the cancer cells' lysosomal integrity and caused cell membrane damage. The temporin-SHf inhibited A549 cancer cell proliferation and migration. It is anti-angiogenic and causes cancer cell death through apoptosis. The molecular mechanism of action of temporin-SHf confirmed that it kills cancer cells by triggering caspase-dependent apoptosis through an intrinsic mitochondrial pathway. Owing to its short length and broad spectrum of antitumor activity, temporin-SHf is a promising candidate for developing a new class of anticancer drugs.
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Affiliation(s)
- Anet Antony
- Department of Zoology, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periya, Kasaragod, 671 320, India
- Department of Zoology, University of Calicut, Malappuram, Kerala, 673 635, India
| | - Anupama Kizhakke Purayil
- Department of Zoology, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periya, Kasaragod, 671 320, India
- Department of Molecular Biology, Kannur University, Dr. Janakiammal Campus, Thalasserry, Palayad, Kerala, 670 661, India
| | - Shilpa Olakkaran
- Department of Zoology, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periya, Kasaragod, 671 320, India
- Department of Zoology, University of Calicut, Malappuram, Kerala, 673 635, India
| | - Shweta Dhannura
- Department of Chemistry, School of Chemical Sciences, Central University of Karnataka, Kalaburagi, Karnataka, 585 367, India
| | - Shamasoddin Shekh
- Department of Chemistry, School of Chemical Sciences, Central University of Karnataka, Kalaburagi, Karnataka, 585 367, India
| | - Konkallu Hanumae Gowd
- Department of Chemistry, School of Chemical Sciences, Central University of Karnataka, Kalaburagi, Karnataka, 585 367, India
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Canè C, Lucignano R, Di Somma A, Liccardo M, Iannuzzi C, Duilio A, Picone D. Release of a novel peptide from ferritin nanocages: A new tool for therapeutic applications. Biochim Biophys Acta Gen Subj 2024; 1868:130525. [PMID: 38043914 DOI: 10.1016/j.bbagen.2023.130525] [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: 08/04/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 12/05/2023]
Abstract
The development of new drug delivery systems for targeted chemotherapy release in cancer cells represents a very promising tool. In this contest, protein-based nanocages have considerable potential as drug delivery devices. Notably, ferritin has emerged as an excellent candidate due to its unique architecture, surface properties and high biocompatibility. A promising strategy might then involve ferritin cargos for specifical release of AntiMicrobial Peptides endowed with anticancer activity to cancer cells. In this paper, we encapsulated the TRIL analogue of Temporin-L peptide within a ferritin nanocage and evaluated the cargo biological properties. The results demonstrated a reduced haemolytic activity of the peptide and a selective cytotoxicity activity on cancer cells likely mediated by oxidative stress while having no effects on non-tumoral cells. The combination of the properties of ferritin with TRIL, might open up the way to the development of novel peptide delivery systems for future pharmaceutical applications.
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Affiliation(s)
- Carolina Canè
- Department of Chemical Sciences, University of Naples "Federico II" Via Cinthia 4, 80126 Napoli, Italy
| | - Rosanna Lucignano
- Department of Chemical Sciences, University of Naples "Federico II" Via Cinthia 4, 80126 Napoli, Italy
| | - Angela Di Somma
- Department of Chemical Sciences, University of Naples "Federico II" Via Cinthia 4, 80126 Napoli, Italy; CEINGE Biotecnologie Avanzate "Franco Salvatore", Via G. Salvatore 486, 80131 Napoli, Italy.
| | - Maria Liccardo
- Department of Precision Medicine, Università degli Studi della Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138 Naples, Italy
| | - Clara Iannuzzi
- Department of Precision Medicine, Università degli Studi della Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138 Naples, Italy
| | - Angela Duilio
- Department of Chemical Sciences, University of Naples "Federico II" Via Cinthia 4, 80126 Napoli, Italy; National Institute of Biostructures and Biosystems (INBB), Viale Medaglie d'Oro 305, 00136 Rome, Italy
| | - Delia Picone
- Department of Chemical Sciences, University of Naples "Federico II" Via Cinthia 4, 80126 Napoli, Italy.
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3
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Tripathi AK, Singh J, Trivedi R, Ranade P. Shaping the Future of Antimicrobial Therapy: Harnessing the Power of Antimicrobial Peptides in Biomedical Applications. J Funct Biomater 2023; 14:539. [PMID: 37998108 PMCID: PMC10672284 DOI: 10.3390/jfb14110539] [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: 09/25/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 11/25/2023] Open
Abstract
Antimicrobial peptides (AMPs) have emerged as a promising class of bioactive molecules with the potential to combat infections associated with medical implants and biomaterials. This review article aims to provide a comprehensive analysis of the role of antimicrobial peptides in medical implants and biomaterials, along with their diverse clinical applications. The incorporation of AMPs into various medical implants and biomaterials has shown immense potential in mitigating biofilm formation and preventing implant-related infections. We review the latest advancements in biomedical sciences and discuss the AMPs that were immobilized successfully to enhance their efficacy and stability within the implant environment. We also highlight successful examples of AMP coatings for the treatment of surgical site infections (SSIs), contact lenses, dental applications, AMP-incorporated bone grafts, urinary tract infections (UTIs), medical implants, etc. Additionally, we discuss the potential challenges and prospects of AMPs in medical implants, such as effectiveness, instability and implant-related complications. We also discuss strategies that can be employed to overcome the limitations of AMP-coated biomaterials for prolonged longevity in clinical settings.
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Affiliation(s)
- Amit Kumar Tripathi
- Department of Microbiology, Immunology and Genetics, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (R.T.); (P.R.)
| | - Jyotsana Singh
- Hematopoietic Biology and Malignancy, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Rucha Trivedi
- Department of Microbiology, Immunology and Genetics, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (R.T.); (P.R.)
| | - Payal Ranade
- Department of Microbiology, Immunology and Genetics, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (R.T.); (P.R.)
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Shakibapour N, Asoodeh A, Saberi MR, Chamani J. Investigating the binding mechanism of temporin Rb with human serum albumin, holo transferrin, and hemoglobin using spectroscopic and molecular dynamics techniques. J Mol Liq 2023; 389:122833. [DOI: 10.1016/j.molliq.2023.122833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
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5
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Indriani S, Karnjanapratum S, Nirmal NP, Nalinanon S. Amphibian Skin and Skin Secretion: An Exotic Source of Bioactive Peptides and Its Application. Foods 2023; 12:foods12061282. [PMID: 36981206 PMCID: PMC10048636 DOI: 10.3390/foods12061282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 03/19/2023] Open
Abstract
Amphibians have been consumed as an alternative protein source all around the world due to their delicacy. The skin of edible amphibians, particularly frogs and giant salamanders, always goes to waste without further utilization. However, these wastes can be utilized to extract protein and bioactive peptides (BPs). Various BPs have been extracted and reported for numerous biological activities such as antioxidant, antimicrobial, anticancer, antidiabetic, etc. The main BPs identified were brevinins, bombesins, dermaseptins, esculentins, magainin, temporins, tigerinins, and salamandrins. This review provides a comprehensive discussion on various BPs isolated and identified from different amphibian skins or skin secretion and their biological activities. The general nutritional composition and production statues of amphibians were described. Additionally, multiple constraints against the utilization of amphibian skin and secretions are reported. Finally, the prospective applications of BPs in food and biomedical industries are presented such as multifunctional food additives and/or supplements as well as drug delivery agents.
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Affiliation(s)
- Sylvia Indriani
- School of Food Industry, King Mongkut’s Institute of Technology Ladkrabang, Ladkrabang, Bangkok 10520, Thailand
| | - Supatra Karnjanapratum
- Professional Culinary Arts Program, School of Management, Walailak University, Nakhon Si Thammarat 80161, Thailand
- Food Technology and Innovation Research Center of Excellence, Department of Agro-Industry, School of Agricultural Technology, Walailak University, Thasala, Nakhon Si Thammarat 80161, Thailand
| | | | - Sitthipong Nalinanon
- School of Food Industry, King Mongkut’s Institute of Technology Ladkrabang, Ladkrabang, Bangkok 10520, Thailand
- Correspondence:
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Temporins: Multifunctional Peptides from Frog Skin. Int J Mol Sci 2023; 24:ijms24065426. [PMID: 36982501 PMCID: PMC10049141 DOI: 10.3390/ijms24065426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
Temporins are short peptides secreted by frogs from all over the world. They exert antimicrobial activity, mainly against Gram-positive bacteria, including resistant pathogens; recent studies highlight other possible applications of these peptides as anticancer or antiviral agents. This review is meant to describe the main features of temporins produced by different ranid genera. Due to the abundance of published papers, we focus on the most widely investigated peptides. We report studies on their mechanism of action and three-dimensional structure in model systems mimicking bacterial membranes or in the presence of cells. The design and the antimicrobial activity of peptide analogues is also described, with the aim of highlighting elements that are crucial to improve the bioactivity of peptides while reducing their toxicity. Finally, a short section is dedicated to the studies aimed at applying these peptides as drugs, to produce new antimicrobial materials or in other technological uses.
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7
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Zhang J, Sun Y, Sun C, Shang D. The antimicrobial peptide LK2(6)A(L) exhibits anti-inflammatory activity by binding to the myeloid differentiation 2 domain and protects against LPS-induced acute lung injury in mice. Bioorg Chem 2023; 132:106376. [PMID: 36706531 DOI: 10.1016/j.bioorg.2023.106376] [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: 10/16/2022] [Revised: 01/07/2023] [Accepted: 01/12/2023] [Indexed: 01/19/2023]
Abstract
Acute lung injury (ALI) is a life-threatening disease that is generally attributable to an uncontrolled inflammatory response in the lung, but there is a lack of effective treatments. At present, regulating the inflammatory response has become an important strategy for treating ALI. In the present study, LK2(6)A(L), a peptide derived from the natural antimicrobial peptide temporin-1CEa, inhibited lipopolysaccharide (LPS)-induced expression of tumor necrosis factor alpha (TNF-α), interleukin-6 (IL-6), and NO in RAW264.7 cells. Herein, the anti-inflammatory mechanism of LK2(6)A(L) was investigated. The RNA-sequencing (RNA-seq) results showed that LK2(6)A(L) significantly inhibited the TLR4-mediated NF-κB and MAPK signaling pathways in LPS-induced RAW264.7 cells. The results of co-immunoprecipitation (Co-IP), pull-down experiment, confocal laser scanning microscopy, and surface plasmon resonance (SPR) suggested that MD2 was the direct target of LK2(6)A(L). Chemical inhibition of MD2 and its knockdown abolished the anti-inflammatory effect of LK2(6)A(L). Molecular dynamic simulation indicated that LK2(6)A(L) could bind to the active domain of the MD2 hydrophobic pocket via six hydrogen bonds. The truncated peptides were designed based on analysis of the molecular docking of LK2(6)A(L) to MD2. The truncated peptide IS-7 showed strong affinity to MD2 and a remarkable inhibitory effect on pro-inflammatory factors that was comparable to the effect of LK2(6)A(L). Finally, LK2(6)A(L) and IS-7 relieved inflammatory symptoms and lung tissue destruction in the ALI mouse model. Overall, our study suggested that LK2(6)A(L) showed promising anti-inflammatory activity by targeting MD2, and the amino acid domain 7-13 was an important area that binds with MD2 and also an anti-inflammatory active region. LK2(6)A(L) and IS-7 may be potential new treatments for ALI and other acute inflammatory diseases.
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Affiliation(s)
- Juan Zhang
- School of Life Science, Liaoning Normal University, Dalian 116081, China
| | - Yue Sun
- School of Life Science, Liaoning Normal University, Dalian 116081, China; Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian 116081, China
| | - Chengpeng Sun
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Dejing Shang
- School of Life Science, Liaoning Normal University, Dalian 116081, China; Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian 116081, China.
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8
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Li QZ, Zhou ZR, Hu CY, Li XB, Chang YZ, Liu Y, Wang YL, Zhou XW. Recent advances of bioactive proteins/polypeptides in the treatment of breast cancer. Food Sci Biotechnol 2023; 32:265-282. [PMID: 36619215 PMCID: PMC9808697 DOI: 10.1007/s10068-022-01233-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/24/2022] [Accepted: 12/21/2022] [Indexed: 01/04/2023] Open
Abstract
Proteins do not only serve as nutrients to fulfill the demand for food, but also are used as a source of bioactive proteins/polypeptides for regulating physical functions and promoting physical health. Female breast cancer has the highest incidence in the world and is a serious threat to women's health. Bioactive proteins/polypeptides exert strong anti-tumor effects and exhibit inhibition of multiple breast cancer cells. This review discussed the suppressing effects of bioactive proteins/polypeptides on breast cancer in vitro and in vivo, and their mechanisms of migration and invasion inhibition, apoptosis induction, and cell cycle arrest. This may contribute to providing a basis for the development of bioactive proteins/polypeptides for the treatment of breast cancer. Graphical abstract
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Affiliation(s)
- Qi-Zhang Li
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Food and Biological Engineering, Hubei University of Technology, No.28, Nanli Road, Wuhan, 430068 Hubei People’s Republic of China
- School of Agriculture and Biology, and Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200240 People’s Republic of China
| | - Ze-Rong Zhou
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Food and Biological Engineering, Hubei University of Technology, No.28, Nanli Road, Wuhan, 430068 Hubei People’s Republic of China
| | - Cui-Yu Hu
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Food and Biological Engineering, Hubei University of Technology, No.28, Nanli Road, Wuhan, 430068 Hubei People’s Republic of China
| | - Xian-Bin Li
- Institute of Computational Science and Technology, Guangzhou University, Guangzhou, Guangdong 510006 People’s Republic of China
| | - Yu-Zhou Chang
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210 USA
| | - Yan Liu
- School of Agriculture and Biology, and Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200240 People’s Republic of China
| | - Yu-Liang Wang
- School of Agriculture and Biology, and Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200240 People’s Republic of China
| | - Xuan-Wei Zhou
- School of Agriculture and Biology, and Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Shanghai Jiao Tong University, Shanghai, 200240 People’s Republic of China
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9
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Lin Y, Jiang Y, Zhao Z, Lu Y, Xi X, Ma C, Chen X, Zhou M, Chen T, Shaw C, Wang L. Discovery of a Novel Antimicrobial Peptide, Temporin-PKE, from the Skin Secretion of Pelophylax kl. esculentus, and Evaluation of Its Structure-Activity Relationships. Biomolecules 2022; 12:biom12060759. [PMID: 35740884 PMCID: PMC9221509 DOI: 10.3390/biom12060759] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/26/2022] [Accepted: 05/26/2022] [Indexed: 11/25/2022] Open
Abstract
Bacterial resistance against antibiotics has led to increasing numbers of treatment failures, and AMPs are widely accepted as becoming potential alternatives due to their advantages. Temporin-PKE is a novel peptide extracted from the skin secretion of Pelophylax kl. esculentus and it displays a strong activity against Gram-positive bacteria, with an extreme cytotoxicity. Incorporating positively charged residues and introducing D-amino acids were the two main strategies adopted for the modifications. The transformation of the chirality of Ile could reduce haemolytic activity, and an analogue with appropriate D-isoforms could maintain antimicrobial activity and stability. The substitution of hydrophobic residues could bring about more potent and broad-spectrum antimicrobial activities. The analogues with Lys were less harmful to the normal cells and their stabilities remained at similarly high levels compared to temporin-PKE. The optimal number of charges was three, and the replacement on the polar face was a better choice. Temporin-PKE-3K exerted dually efficient functions includingstrong antimicrobial and anticancer activity. This analogue showed a reduced possibility for inducing resistance in MRSA and Klebsiella pneumoniae, a rather strong antimicrobial activity in vivo, and it exhibited the highest therapeutic index such that temporin-PKE-3K has the potential to be developed as a clinical drug.
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Affiliation(s)
- Yaxian Lin
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (Y.L.); (Y.J.); (Z.Z.); (Y.L.); (X.X.); (C.M.); (M.Z.); (T.C.); (C.S.)
| | - Yangyang Jiang
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (Y.L.); (Y.J.); (Z.Z.); (Y.L.); (X.X.); (C.M.); (M.Z.); (T.C.); (C.S.)
| | - Ziwei Zhao
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (Y.L.); (Y.J.); (Z.Z.); (Y.L.); (X.X.); (C.M.); (M.Z.); (T.C.); (C.S.)
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yueyang Lu
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (Y.L.); (Y.J.); (Z.Z.); (Y.L.); (X.X.); (C.M.); (M.Z.); (T.C.); (C.S.)
| | - Xinping Xi
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (Y.L.); (Y.J.); (Z.Z.); (Y.L.); (X.X.); (C.M.); (M.Z.); (T.C.); (C.S.)
| | - Chengbang Ma
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (Y.L.); (Y.J.); (Z.Z.); (Y.L.); (X.X.); (C.M.); (M.Z.); (T.C.); (C.S.)
| | - Xiaoling Chen
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (Y.L.); (Y.J.); (Z.Z.); (Y.L.); (X.X.); (C.M.); (M.Z.); (T.C.); (C.S.)
- Correspondence: (X.C.); (L.W.)
| | - Mei Zhou
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (Y.L.); (Y.J.); (Z.Z.); (Y.L.); (X.X.); (C.M.); (M.Z.); (T.C.); (C.S.)
| | - Tianbao Chen
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (Y.L.); (Y.J.); (Z.Z.); (Y.L.); (X.X.); (C.M.); (M.Z.); (T.C.); (C.S.)
| | - Chris Shaw
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (Y.L.); (Y.J.); (Z.Z.); (Y.L.); (X.X.); (C.M.); (M.Z.); (T.C.); (C.S.)
| | - Lei Wang
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (Y.L.); (Y.J.); (Z.Z.); (Y.L.); (X.X.); (C.M.); (M.Z.); (T.C.); (C.S.)
- Correspondence: (X.C.); (L.W.)
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Antony A, Olakkaran S, Purayil AK, Shekh S, Gowd KH, Gurushankara HP. Antitumor activity of Tigerinin-1: Necroptosis mediates toxicity in A549 cells. Biochim Biophys Acta Gen Subj 2022; 1866:130182. [DOI: 10.1016/j.bbagen.2022.130182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 10/18/2022]
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11
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Characterization and Anticancer Activity of a Folic Acid Conjugated and Cationic Peptide L-K6 Encapsulated Cancer-Targeting Liposomal Drug Delivery System. Int J Pept Res Ther 2022. [DOI: 10.1007/s10989-022-10393-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Overview of Host Defense Peptides with Promising Anti-Breast Cancer Activity. SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2022. [DOI: 10.2478/sjecr-2021-0052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Breast cancer is the leading cause of death among women worldwide. The main limitations of conventional anti-cancer therapy, including breast cancer treatment, are side effects and the development of resistance to chemotherapeutics. Host defense peptides (HDPs) are bioactive compounds of innate immunity isolated from almost all living organisms, which exhibit wide range of biological activities. This review focuses on the anti-cancer effects of HDPs and their therapeutic potential against breast cancer. Numerous HDPs from different sources, including mammalian and amphibian origin, and their chemically modified analogues, exert the spectrum of anti-cancer activities. These effects include direct disruption of cancer cell membrane, induction of apoptosis, inhibition of angiogenesis and cancer cell proliferation, but also the modulation of anti-cancer immune response. Selected examples of HDPs of different origin and their anti-breast cancer capacities have been reviewed. Conclusively, due to their anti-cancer effects accompanied by substantial selectivity for cancer cells and low toxicity for normal cells, HDPs have been widely recognized as possible therapeutic agents.
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Wei DX, Zhang XW. Biosynthesis, Bioactivity, Biosafety and Applications of Antimicrobial Peptides for Human Health. BIOSAFETY AND HEALTH 2022. [DOI: 10.1016/j.bsheal.2022.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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14
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Bioactive cationic peptides as potential agents for breast cancer treatment. Biosci Rep 2021; 41:230394. [PMID: 34874400 PMCID: PMC8655503 DOI: 10.1042/bsr20211218c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/25/2021] [Accepted: 11/10/2021] [Indexed: 11/17/2022] Open
Abstract
Breast cancer continues to affect millions of women worldwide, and the number of new cases dramatically increases every year. The physiological causes behind the disease are still not fully understood. One in every 100 cases can occur in men, and although the frequency is lower than among women, men tend to have a worse prognosis of the disease. Various therapeutic alternatives to combat the disease are available. These depend on the type and progress of the disease, and include chemotherapy, radiotherapy, surgery, and cancer immunotherapy. However, there are several well-reported side effects of these treatments that have a significant impact on life quality, and patients either relapse or are refractory to treatment. This makes it necessary to develop new therapeutic strategies. One promising initiative are bioactive peptides, which have emerged in recent years as a family of compounds with an enormous number of clinical applications due to their broad spectrum of activity. They are widely distributed in several organisms as part of their immune system. The antitumoral activity of these peptides lies in a nonspecific mechanism of action associated with their interaction with cancer cell membranes, inducing, through several routes, bilayer destabilization and cell death. This review provides an overview of the literature on the evaluation of cationic peptides as potential agents against breast cancer under different study phases. First, physicochemical characteristics such as the primary structure and charge are presented. Secondly, information about dosage, the experimental model used, and the mechanism of action proposed for the peptides are discussed.
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15
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Antimicrobial peptides as potential therapeutics for breast cancer. Pharmacol Res 2021; 171:105777. [PMID: 34298112 DOI: 10.1016/j.phrs.2021.105777] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/11/2021] [Accepted: 07/15/2021] [Indexed: 01/10/2023]
Abstract
Breast cancer is the most common and deadliest cancer in women worldwide. Although notable advances have been achieved in the treatment of breast cancer, the overall survival rate of metastatic breast cancer patients is still considerably low due to the development of resistance to breast cancer chemotherapeutic agents and the non-optimal specificity of the current generation of cancer medications. Hence, there is a growing interest in the search for alternative therapeutics with novel anticancer mechanisms. Recently, antimicrobial peptides (AMPs) have gained much attention due to their cost-effectiveness, high specificity of action, and robust efficacy. However, there are no clinical data available about their efficacy. This warrants the increasing need for clinical trials to be conducted to assess the efficacy of this new class of drugs. Here, we will focus on the recent progress in the use of AMPs for breast cancer therapy and will highlight their modes of action. Finally, we will discuss the combination of AMP-based therapeutics with other breast cancer therapy strategies, including nanotherapy and chemotherapy, which may provide a potential avenue for overcoming drug resistance.
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16
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Antimicrobial peptide temporin-1CEa isolated from frog skin secretions inhibits the proinflammatory response in lipopolysaccharide-stimulated RAW264.7 murine macrophages through the MyD88-dependent signaling pathway. Mol Immunol 2021; 132:227-235. [PMID: 33494936 DOI: 10.1016/j.molimm.2021.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 12/15/2022]
Abstract
Temporin-1CEa, which is isolated from the skin secretions of the Chinese brown frog Rana chensinensis, exhibits broad-spectrum antimicrobial activity against gram-positive and gram-negative bacteria and antitumor activity. LK2(6) and LK2(6)A(L) are the analogs of temporin-1CEa obtained by replacing amino acids and displayed an improved anticancer activity. In the present study, the anti-inflammatory activity and mechanism of action of temporin-1CEa and its analogs LK2(6) and LK2(6)A(L) in lipopolysaccharide (LPS)-stimulated RAW264.7 murine macrophages were investigated. The results showed that temporin-1CEa and its analogs decreased the production of the cytokines tumor necrosis factor-α and interleukin-6 by inhibiting the protein expression of nuclear factor-κB and mitogen-activated protein kinase and the MyD88-dependent signaling pathway. Isothermal titration calorimetry studies revealed that temporin-1CEa, LK2(6) and LK2(6)A(L) exhibited binding affinities to LPS, an important inflammatory inducer, with Kd values of 0.1, 0.03 and 0.06 μM, respectively. Circular dichroism and zeta potential experiments showed that temporin-1CEa and its analogs interacted with LPS by electrostatic binding between the positively charged peptides and negatively charged LPS, resulting in the neutralization of LPS toxicity.
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17
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Tan J, Tay J, Hedrick J, Yang YY. Synthetic macromolecules as therapeutics that overcome resistance in cancer and microbial infection. Biomaterials 2020; 252:120078. [PMID: 32417653 DOI: 10.1016/j.biomaterials.2020.120078] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/24/2020] [Accepted: 04/27/2020] [Indexed: 02/07/2023]
Abstract
Synthetic macromolecular antimicrobials have shown efficacy in the treatment of multidrug resistant (MDR) pathogens. These synthetic macromolecules, inspired by Nature's antimicrobial peptides (AMPs), mitigate resistance by disrupting microbial cell membrane or targeting multiple intracellular proteins or genes. Unlike AMPs, these polymers are less prone to degradation by proteases and are easier to synthesize on a large scale. Recently, various studies have revealed that cancer cell membrane, like that of microbes, is negatively charged, and AMPs can be used as anticancer agents. Nevertheless, efforts in developing polymers as anticancer agents has remained limited. This review highlights the recent advancement in the development of synthetic biodegradable antimicrobial polymers (e.g. polycarbonates, polyesters and polypeptides) and anticancer macromolecules including peptides and polymers. Additionally, strategies to improve their in vivo bioavailability and selectivity towards bacteria and cancer cells are examined. Lastly, future perspectives, including use of artificial intelligence or machine learning, in the development of antimicrobial and anticancer macromolecules are discussed.
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Affiliation(s)
- Jason Tan
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore, 138669, Singapore; Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Joyce Tay
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore, 138669, Singapore; Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - James Hedrick
- IBM Almaden Research Center, 650 Harry Road, San Jose, CA, 95120, United States
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore, 138669, Singapore.
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18
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Fusco LS, Cajade R, Piñeiro JM, Torres AM, da Silva IRF, Hyslop S, Leiva LC, Pimenta DC, Bustillo S. Biochemical characterization and cytotoxic effect of the skin secretion from the red-spotted Argentina frog Argenteohyla siemersi (Anura: Hylidae). J Venom Anim Toxins Incl Trop Dis 2020; 26:e20190078. [PMID: 32280338 PMCID: PMC7112748 DOI: 10.1590/1678-9199-jvatitd-2019-0078] [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] [Indexed: 12/29/2022] Open
Abstract
Background: Argenteohyla siemersi (red-spotted Argentina frog) is a
casque-headed tree frog species belonging to the Hylidae family. This
species has a complex combination of anti-predator defense mechanisms that
include a highly lethal skin secretion. However, biochemical composition and
biological effects of this secretion have not yet been studied. Methods: The A. siemersi skin secretion samples were analyzed by mass
spectrometry and chromatographic analysis (MALDI-TOF/MS, RP-HPLC and GC-MS).
Proteins were also studied by SDS-PAGE. Among the biological activities
evaluated, several enzymatic activities (hemolytic, phospholipase
A2, clotting, proteolytic and amidolytic) were assessed.
Furthermore, the cytotoxic activity (cytolysis and fluorescence staining)
was evaluated on myoblasts of the C2C12 cell line. Results: The MALDI-TOF/MS analysis identified polypeptides and proteins in the aqueous
solution of A. siemersi skin secretion. SDS-PAGE revealed
the presence of proteins with molecular masses from 15 to 55 kDa. Steroids,
but no alkaloids or peptides (less than 5 KDa), were detected using mass
spectrometry. Skin secretion revealed the presence of lipids in methanolic
extract, as analyzed by CG-MS. This secretion showed hemolytic and
phospholipase A2 activities, but was devoid of amidolytic,
proteolytic or clotting activities. Moreover, dose-dependent cytotoxicity in
cultured C2C12 myoblasts of the skin secretion was demonstrated.
Morphological analysis, quantification of lactate dehydrogenase release and
fluorescence staining indicated that the cell death triggered by this
secretion involved necrosis. Conclusions: Results presented herein evidence the biochemical composition and biological
effects of A. siemersi skin secretion and contribute to the
knowledge on the defense mechanisms of casque-headed frogs.
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Affiliation(s)
- Luciano S Fusco
- Protein Research Laboratory (LabInPro), IQUIBA-NEA CONICET, National University of the Northeast, Corrientes, Argentina
| | - Rodrigo Cajade
- Herpetology Laboratory, National University of the Northeast, Corrientes, Argentina
| | - Jose M Piñeiro
- Herpetology Laboratory, National University of the Northeast, Corrientes, Argentina
| | - Ana M Torres
- Natural Products Laboratory, National University of the Northeast, Corrientes, Argentina
| | - Igor R F da Silva
- Department of Pharmacology, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Stephen Hyslop
- Department of Pharmacology, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Laura C Leiva
- Protein Research Laboratory (LabInPro), IQUIBA-NEA CONICET, National University of the Northeast, Corrientes, Argentina
| | - Daniel C Pimenta
- Laboratory of Biochemistry and Biophysics, Butantan Institute, São Paulo, SP, Brazil
| | - Soledad Bustillo
- Protein Research Laboratory (LabInPro), IQUIBA-NEA CONICET, National University of the Northeast, Corrientes, Argentina
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19
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Patocka J, Nepovimova E, Klimova B, Wu Q, Kuca K. Antimicrobial Peptides: Amphibian Host Defense Peptides. Curr Med Chem 2019; 26:5924-5946. [PMID: 30009702 DOI: 10.2174/0929867325666180713125314] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 03/05/2018] [Accepted: 07/06/2018] [Indexed: 02/07/2023]
Abstract
Antimicrobial Peptides (AMPs) are one of the most common components of the innate immune system that protect multicellular organisms against microbial invasion. The vast majority of AMPs are isolated from the frog skin. Anuran (frogs and toads) skin contains abundant AMPs that can be developed therapeutically. Such peptides are a unique but diverse group of molecules. In general, more than 50% of the amino acid residues form the hydrophobic part of the molecule. Normally, there are no conserved structural motifs responsible for activity, although the vast majority of the AMPs are cationic due to the presence of multiple lysine residues; this cationicity has a close relationship with antibacterial activity. Notably, recent evidence suggests that synthesis of AMPs in frog skin may confer an advantage on a particular species, although they are not essential for survival. Frog skin AMPs exert potent activity against antibiotic-resistant bacteria, protozoa, yeasts, and fungi by permeating and destroying the plasma membrane and inactivating intracellular targets. Importantly, since they do not bind to a specific receptor, AMPs are less likely to induce resistance mechanisms. Currently, the best known amphibian AMPs are esculentins, brevinins, ranacyclins, ranatuerins, nigrocin-2, magainins, dermaseptins, bombinins, temporins, and japonicins-1 and -2, and palustrin-2. This review focuses on these frog skin AMPs and the mechanisms underlying their antimicrobial activity. We hope that this review will provide further information that will facilitate further study of AMPs and cast new light on novel and safer microbicides.
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Affiliation(s)
- Jiri Patocka
- Department of Radiology and Toxicology, Faculty of Health and Social Studies, University of South Bohemia Ceske Budejovice, Ceske Budejovice, Czech Republic
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Blanka Klimova
- Faculty of Informatics and Management, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Qinghua Wu
- College of Life Science, Institute of Biomedicine, Yangtze University, Jingzhou 434025, China
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
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20
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Shang D, Liu Y, Jiang F, Ji F, Wang H, Han X. Synergistic Antibacterial Activity of Designed Trp-Containing Antibacterial Peptides in Combination With Antibiotics Against Multidrug-Resistant Staphylococcus epidermidis. Front Microbiol 2019; 10:2719. [PMID: 31824473 PMCID: PMC6886405 DOI: 10.3389/fmicb.2019.02719] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 11/08/2019] [Indexed: 01/10/2023] Open
Abstract
Multidrug resistance among various bacterial strains is leading to worldwide resistance to a wide range of antibiotics. Combination therapy involving current antibiotics and other biological or chemical molecules represents an attractive novel strategy. In this study, we investigated the synergistic antibacterial activity of a series of Trp-containing antimicrobial peptides (AMPs) with four classes of traditional chemical antibiotics that are inactive against multidrug-resistant Staphylococcus epidermidis (MRSE) in vitro and in vivo. Among the antibiotics that we studied, penicillin, ampicillin and erythromycin showed a distinct synergistic effect in combination with all of the Trp-containing AMPs, represented by a fractional inhibitory concentration index (FICI) of <0.5. The antibacterial activities were noticeably improved, with 32-to 64-fold reductions in the MIC values for ampicillin and 16- to 32-fold reductions in the MIC values for erythromycin and penicillin. Tetracycline showed synergistic activity with only I1WL5W but additive activity with L11W, L12W, and I4WL5W. Ceftazidime exhibited additive activity with the Trp-containing peptides. In addition, the antibiotics in combination with the peptide significantly inhibited biofilm formation by MRSE 1208. A mechanistic study demonstrated that the Trp-containing peptides, especially I1WL5W and I4WL5W, which contain two tryptophan residues, disrupted bacterial inner and outer membranes, which promoted antibiotic delivery into the cytoplasm and access to cytoplasmic targets; however, L11W and L12W may have increased intracellular antibiotic concentrations by decreasing blaZ, tet(m) and msrA expression. Importantly, strong synergistic activity against the MRSE 1208 strain was observed for the combination of I1WL5W and penicillin in a mouse infection model. Thus, the combination of AMPs and traditional antibiotics could be a promising option for the prevention of acute and chronic infections caused by MRSE.
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Affiliation(s)
- Dejing Shang
- School of Life Sciences, Liaoning Normal University, Dalian, China.,Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, China
| | - Yue Liu
- School of Life Sciences, Liaoning Normal University, Dalian, China
| | - Fengquan Jiang
- School of Life Sciences, Liaoning Normal University, Dalian, China.,Clinical Laboratory Department of the First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Fangyu Ji
- School of Life Sciences, Liaoning Normal University, Dalian, China
| | - He Wang
- School of Life Sciences, Liaoning Normal University, Dalian, China
| | - Xue Han
- School of Life Sciences, Liaoning Normal University, Dalian, China
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21
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Acar H, Ting JM, Srivastava S, LaBelle JL, Tirrell MV. Molecular engineering solutions for therapeutic peptide delivery. Chem Soc Rev 2018; 46:6553-6569. [PMID: 28902203 DOI: 10.1039/c7cs00536a] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Proteins and their interactions in and out of cells must be well-orchestrated for the healthy functioning and regulation of the body. Even the slightest disharmony can cause diseases. Therapeutic peptides are short amino acid sequences (generally considered <50 amino acids) that can naturally mimic the binding interfaces between proteins and thus, influence protein-protein interactions. Because of their fidelity of binding, peptides are a promising next generation of personalized medicines to reinstate biological harmony. Peptides as a group are highly selective, relatively safe, and biocompatible. However, they are also vulnerable to many in vivo pharmacologic barriers limiting their clinical translation. Current advances in molecular, chemical, and nanoparticle engineering are helping to overcome these previously insurmountable obstacles and improve the future of peptides as active and highly selective therapeutics. In this review, we focus on self-assembled vehicles as nanoparticles to carry and protect therapeutic peptides through this journey, and deliver them to the desired tissue.
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Affiliation(s)
- Handan Acar
- Institute for Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA.
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22
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Antimicrobial activity and self-assembly behavior of antimicrobial peptide chensinin-1b with lipophilic alkyl tails. Eur J Med Chem 2018; 150:546-558. [PMID: 29549839 DOI: 10.1016/j.ejmech.2018.03.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 12/15/2017] [Accepted: 03/08/2018] [Indexed: 12/26/2022]
Abstract
The threshold hydrophobicity and amphipathic structure of the peptidic chain are important for the biological function of antimicrobial peptides. Chensinin-1b exhibits broad-spectrum bactericidal activity with no hemolytic activity but has almost no anticancer ability against the selected cancer cell lines. In this study, the conjugation of aliphatic acid was designed with different lengths of N-terminal of chensinin-1b, the antimicrobial activity of the resulting lipo-chensinin-1b was examined, in which OA-C1b showed much stronger activity than those of cheninin-1b and the other two lipopeptides. The membrane interaction between the lipo-chensinin-1b and real/mimetic bacterial cell membrane was investigated. Electrostatic interactions between the lipo-chensinin-1b and lipopolysaccharides were detected by isothermal titration calorimetry and the binding affinities were 10.83 μM, 8.77 μM and 7.35 μM for OA-C1b, LA-C1b and PA-C1b, respectively. The antimicrobial activity and membrane interaction ability of the lipo-chensinin-1b followed this order: OA-C1b > chensinin-1b > LA-C1b > PA-C1b. In addition, the lipo-chensinin-1b also exhibited lytic activity against various cancer cells and demonstrated the ability to inhibit LPS-stimulated cytokine release from human U937 cells. The CD spectra indicated that the helical or β-strands contents were existed as the main components in TFE or LPS solution, respectively. The self-assembly behavior was trigged by the solution pH and affected by the length of carbon chain, in which chensinin-1b, OA-C1b, LA-C1b and PA-C1b formed micelles at neutral pH and the micelle size increased for chensinin-1b, OA-C1b and LA-C1b. PA-C1b formed nanofibers in an acidic environment indicated by TEM experiments, and the peptides formed aggregates in an acidic environment and re-dissociated when the pH was adjusted to neutral.
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23
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Ting CH, Chen YC, Wu CJ, Chen JY. Targeting FOSB with a cationic antimicrobial peptide, TP4, for treatment of triple-negative breast cancer. Oncotarget 2018; 7:40329-40347. [PMID: 27248170 PMCID: PMC5130011 DOI: 10.18632/oncotarget.9612] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 05/02/2016] [Indexed: 12/31/2022] Open
Abstract
Triple-negative breast cancer (TNBC) currently lacks a suitable therapeutic candidate and is thus difficult to treat. Here, we report that a cationic antimicrobial peptide (CAP), tilapia piscidin 4 (TP4), which was derived from Nile tilapia (Oreochromis niloticus), is selectively toxic to TNBC. TP4 acts by inducing an AP-1 protein called FOSB, the expression of which is negatively associated with the pathological grade of TNBC. We show that TP4 is bound to the mitochondria where it disrupts calcium homeostasis and activates FOSB. FOSB overexpression results in TNBC cell death, whereas inhibition of calcium signaling eliminates FOSB induction and blocks TP4-induced TNBC cell death. Both TP4 and anthracyclines strongly induced FOSB, particularly in TNBC, indicating that FOSB may be suitable as a biomarker of drug responses. This study thus provides a novel therapeutic approach toward TNBC through FOSB induction.
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Affiliation(s)
- Chen-Hung Ting
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, Jiaushi, Ilan 262, Taiwan
| | - Yi-Chun Chen
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, Jiaushi, Ilan 262, Taiwan
| | - Chang-Jer Wu
- Department of Food Science, National Taiwan Ocean University, Keelung 202, Taiwan
| | - Jyh-Yih Chen
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, Jiaushi, Ilan 262, Taiwan
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24
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Sang M, Wu Q, Xi X, Ma C, Wang L, Zhou M, Burrows JF, Chen T. Identification and target-modifications of temporin-PE: A novel antimicrobial peptide in the defensive skin secretions of the edible frog, Pelophylax kl. esculentus. Biochem Biophys Res Commun 2017; 495:2539-2546. [PMID: 29191658 DOI: 10.1016/j.bbrc.2017.11.173] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 11/27/2017] [Indexed: 12/13/2022]
Abstract
A potent natural antimicrobial peptide named temporin-PE was identified and encoded from the skin secretions of Pelophylax kl. esculentus via "shotgun" cloning and LC-MS/MS fragmentation analysis. Target-modifications were carried out to further enhance the antimicrobial and anti-proliferative bioactivities, whilst decreasing the hemolytic effect. A range of bioassays demonstrated that replacing a proline with a tyrosine residue resulted in a loss of the bioactivity against Gram-negative bacteria, but dramatically improved the hemolytic and anti-proliferative activity, indicating the FLP- motif influences the hemolytic activity of temporins. Moreover, the coupling of TAT to the peptide dramatically improved its antimicrobial activity, indicating coupling TAT to these peptides could be considered as a potential tool to improve their antimicrobial activity. Overall, we have shown that targeted modifications of this natural antimicrobial peptide can adjust its bioactivities to help its development as an antibiotic or anti-proliferative agent.
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Affiliation(s)
- Mengru Sang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China; School of Pharmacy, Queen's University, Belfast BT9 7BL, Northern Ireland, UK
| | - Qinan Wu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China; Collaborative Innovation Centre of Chinese Medicinal Resources Industrialization, Nanjing, Jiangsu, 210023, China; National and Local Collaborative Engineering, Centre of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing, Jiangsu, 210023, China.
| | - Xinping Xi
- School of Pharmacy, Queen's University, Belfast BT9 7BL, Northern Ireland, UK.
| | - Chengbang Ma
- School of Pharmacy, Queen's University, Belfast BT9 7BL, Northern Ireland, UK
| | - Lei Wang
- School of Pharmacy, Queen's University, Belfast BT9 7BL, Northern Ireland, UK
| | - Mei Zhou
- School of Pharmacy, Queen's University, Belfast BT9 7BL, Northern Ireland, UK
| | - James F Burrows
- School of Pharmacy, Queen's University, Belfast BT9 7BL, Northern Ireland, UK
| | - Tianbao Chen
- School of Pharmacy, Queen's University, Belfast BT9 7BL, Northern Ireland, UK
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25
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Piotrowska U, Sobczak M, Oledzka E. Current state of a dual behaviour of antimicrobial peptides-Therapeutic agents and promising delivery vectors. Chem Biol Drug Des 2017; 90:1079-1093. [DOI: 10.1111/cbdd.13031] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 05/14/2017] [Accepted: 05/18/2017] [Indexed: 01/19/2023]
Affiliation(s)
- Urszula Piotrowska
- Chair of Inorganic and Analytical Chemistry; Department of Biomaterials Chemistry; Faculty of Pharmacy with the Laboratory Medicine Division; Medical University of Warsaw; Warsaw Poland
| | - Marcin Sobczak
- Chair of Inorganic and Analytical Chemistry; Department of Biomaterials Chemistry; Faculty of Pharmacy with the Laboratory Medicine Division; Medical University of Warsaw; Warsaw Poland
| | - Ewa Oledzka
- Chair of Inorganic and Analytical Chemistry; Department of Biomaterials Chemistry; Faculty of Pharmacy with the Laboratory Medicine Division; Medical University of Warsaw; Warsaw Poland
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26
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Sang M, Zhang J, Zhuge Q. Selective cytotoxicity of the antibacterial peptide ABP-dHC-Cecropin A and its analog towards leukemia cells. Eur J Pharmacol 2017; 803:138-147. [PMID: 28347740 DOI: 10.1016/j.ejphar.2017.03.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 03/19/2017] [Accepted: 03/24/2017] [Indexed: 12/27/2022]
Abstract
Some cationic antibacterial peptides, with typical amphiphilic α-helical conformations in a membrane-mimicking environment, exhibit anticancer properties as a result of a similar mechanism of action towards both bacteria and cancer cells. We previously reported the cDNA sequence of the antimicrobial peptide ABP-dHC-Cecropin A precursor cloned from drury (Hyphantria cunea) (dHC). In the present study, we synthesized and structurally characterized ABP-dHC-Cecropin A and its analog, ABP-dHC-Cecropin A-K(24). Circular dichroism spectroscopy showed that ABP-dHC-Cecropin A and its analog adopt a well-defined α-helical structure in a 50% trifluorethanol solution. The cytotoxicity and cell selectivity of these peptides were further examined in three leukemia cell lines and two non-cancerous cell lines. The MTT assay indicated both of these peptides have a concentration-dependent cytotoxic effect in leukemia cells, although the observed cytotoxicity was greater with ABP-dHC-Cecropin A-K(24) treatment, whereas they were not cytotoxic towards the non-cancerous cell lines. Moreover, ABP-dHC-Cecropin A and its analog had a lower hemolytic effect in human red blood cells. Together, these results suggest the peptides are selectively cytotoxic towards leukemia cells. Confocal laser scanning microscopy determined that the peptides were concentrated at the surface of the leukemia cells, and changes in the cell membrane were determined with a permeability assay, which suggested that the anticancer activity of ABP-dHC-Cecropin A and its analog is a result of its presence at the leukemia cell membrane. ABP-dHC-Cecropin A and its analog may represent a novel anticancer agent for leukemia therapy, considering its cancer cell selectivity and relatively low cytotoxicity in normal cells.
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Affiliation(s)
- Ming Sang
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing 210037, China
| | - Jiaxin Zhang
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing 210037, China.
| | - Qiang Zhuge
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing 210037, China.
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27
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Wilms D, Andrä J. Comparison of patient-derived high and low phosphatidylserine-exposing colorectal carcinoma cells in their interaction with anti-cancer peptides. J Pept Sci 2017; 23:56-67. [PMID: 28066958 DOI: 10.1002/psc.2963] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 12/01/2016] [Accepted: 12/07/2016] [Indexed: 01/10/2023]
Abstract
Current cancer treatment is frequently compromised by severe adverse effects on healthy cells and tissues as well as by the increasing burden of (multi-)drug resistances. Some representatives of small, amphipathic peptides known as host defense peptides possess the potential to overcome these limitations and to evolve as future anti-cancer therapeutics. Peptide NK-2, derived from porcine NK-lysin, was originally discovered due to its broad-spectrum antimicrobial activities. Today, also potent anti-cancer activity is proven and accompanied by low toxicity towards normal human cells. The molecular basis underlying this target selectivity remains rather elusive. Nevertheless, it is presumptive that preferential peptide interactions with surface factors non-abundant on healthy human cells play a key role. Here, we investigated the cytotoxicity of peptide NK-2 and structurally improved anti-cancer variants thereof against two patient-derived colorectal cancer cell lines, exposing high and low levels of phosphatidylserine on their cell surfaces, respectively. Concluding from a range of in vitro tests involving cellular as well as lipid vesicle-based methods, it is proposed that the magnitude of the accessible membrane surface charge is not a primarily decisive factor for selective peptide interactions. Instead, it is suggested that the level of membrane surface-exposed phosphatidylserine is of crucial importance for the activity of peptide NK-2 and enhanced variants thereof in terms of their cancer cell selectivity, the overall efficacy, as well as the underlying mode of action and kinetics. Copyright © 2017 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- Dominik Wilms
- Faculty of Life Sciences, Department of Biotechnology, Hamburg University of Applied Sciences, Ulmenliet 20, D-21033, Hamburg, Germany
| | - Jörg Andrä
- Faculty of Life Sciences, Department of Biotechnology, Hamburg University of Applied Sciences, Ulmenliet 20, D-21033, Hamburg, Germany
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28
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Using Oral and Colon Cancer Cells for Studying the Anticancer Properties of Antimicrobial Peptides. Methods Mol Biol 2016. [PMID: 28013517 DOI: 10.1007/978-1-4939-6737-7_25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Antimicrobial peptides (AMPs) are of importance in defense mechanism of many organisms and are potential candidate for treatment of infections in animals and humans. AMPs exhibit a wide range of immunomodulatory activities related to innate immunity, wound healing, and inflammation. AMPs also serve as drug delivery vectors, antitumor agents, and mitogenic agents. Here, we describe the investigation of anticancer and cytotoxic activities of antimicrobial peptides by colorimetric MTT assay using smooth muscle, dental pulp stem cell, human colon cancer cell line (SW620), and human oral squamous carcinoma cell line (HSC4).
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29
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Zhang M, Li X, Li S, Liu Y, Hao L. Electrospun poly(l-lactide)/zein nanofiber mats loaded with Rana chensinensis skin peptides for wound dressing. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:136. [PMID: 27432415 DOI: 10.1007/s10856-016-5749-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 07/05/2016] [Indexed: 06/06/2023]
Abstract
Electrospun nanofiber mats can display impressive performance as an ideal wound dressing. In this study, poly(l-lactide)(PLLA)/zein nanofiber mats loaded with Rana chensinensis skin peptides (RCSPs) were successfully produced by two different electrospinning techniques, blend and coaxial, with the goal of developing a wound dressing material. The nanofiber mats were investigated by environmental scanning electron microscope (ESEM), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FTIR), differential scanning calorimeter (DSC), water contact angle, mechanical tests and cell viability. The resulting nanofiber mats exhibited smooth surfaces, tiny diameters and different cross-sectional shapes from pure PLLA and zein nanofibers. The FTIR result showed that PLLA, zein and RCSPs were well dispersed, without chemical interactions. Compared with coaxial nanofiber mats, blending zein-RCSPs with PLLA enhanced hydrophilicity but decreased mechanical properties. Adding RCSPs into the electrospun nanofibers significantly improved the mechanical properties of the mats. Cell viability studies with human foreskin fibroblasts demonstrated that cell growth on PLLA/zein-RCSPs nanofiber mats was significantly higher than that on PLLA/zein nanofiber mats. The results indicate that nanofiber mats containing RCSPs are potential candidates for wound dressing.
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Affiliation(s)
- Mei Zhang
- Alan G. MacDiarmid Laboratory, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Xueqi Li
- Alan G. MacDiarmid Laboratory, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Siming Li
- College of Animal Science, Jilin University, Changchun, 130062, China
| | - Yongjia Liu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Linlin Hao
- College of Animal Science, Jilin University, Changchun, 130062, China.
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Discovery of Novel Bacterial Cell-Penetrating Phylloseptins in Defensive Skin Secretions of the South American Hylid Frogs, Phyllomedusa duellmani and Phyllomedusa coelestis. Toxins (Basel) 2016; 8:toxins8090255. [PMID: 27589802 PMCID: PMC5037481 DOI: 10.3390/toxins8090255] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 08/22/2016] [Indexed: 02/03/2023] Open
Abstract
Phylloseptin (PS) peptides, derived from South American hylid frogs (subfamily Phyllomedusinae), have been found to have broad-spectrum antimicrobial activities and relatively low haemolytic activities. Although PS peptides have been identified from several well-known and widely-distributed species of the Phyllomedusinae, there remains merit in their study in additional, more obscure and specialised members of this taxon. Here, we report the discovery of two novel PS peptides, named PS-Du and PS-Co, which were respectively identified for the first time and isolated from the skin secretions of Phyllomedusa duellmani and Phyllomedusa coelestis. Their encoding cDNAs were cloned, from which it was possible to deduce the entire primary structures of their biosynthetic precursors. Reversed-phase high-performance liquid chromatography (RP-HPLC) and tandem mass spectrometry (MS/MS) analyses were employed to isolate and structurally-characterise respective encoded PS peptides from skin secretions. The peptides had molecular masses of 2049.7 Da (PS-Du) and 1972.8 Da (PS-Co). They shared typical N-terminal sequences and C-terminal amidation with other known phylloseptins. The two peptides exhibited growth inhibitory activity against E. coli (NCTC 10418), as a standard Gram-negative bacterium, S. aureus (NCTC 10788), as a standard Gram-positive bacterium and C. albicans (NCPF 1467), as a standard pathogenic yeast, all as planktonic cultures. Moreover, both peptides demonstrated the capability of eliminating S. aureus biofilm.
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Liu MM, Zeng P, Li XT, Shi LG. Antitumor and immunomodulation activities of polysaccharide from Phellinus baumii. Int J Biol Macromol 2016; 91:1199-205. [PMID: 27370747 DOI: 10.1016/j.ijbiomac.2016.06.086] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/24/2016] [Accepted: 06/27/2016] [Indexed: 11/26/2022]
Abstract
A homogeneous polysaccharide (PPB) was purified from fruiting bodies of Phellinus baumii. And in vitro antitumor and immunomodulation activities were investigated on HeLa, SGC-7901 and RAW264.7 cell lines. PPB inhibited the proliferation of HeLa and SGC-7901 cells significantly, and flow cytometric studies revealed that PPB could mediate the cell cycle in the G0/G1 and S phases. Furthermore, PPB could promote the growth and phagocytosis of RAW264.7 cells, activate the secretion of cytokines such as TNF-α and IL-6, which indicated that PPB had low toxicity. The results make PPB as a candidate adjuvant in cancer therapy.
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Affiliation(s)
- Ming-Ming Liu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Peng Zeng
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiao-Tong Li
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lian-Gen Shi
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
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Gabernet G, Müller AT, Hiss JA, Schneider G. Membranolytic anticancer peptides. MEDCHEMCOMM 2016. [DOI: 10.1039/c6md00376a] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Understanding the structure–activity relationships and mechanisms of action of membranolytic anticancer peptides could help them advance to therapeutic success.
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Affiliation(s)
- G. Gabernet
- Department of Chemistry and Applied Biosciences
- Swiss Federal Institute of Technology (ETH)
- CH-8093 Zurich
- Switzerland
| | - A. T. Müller
- Department of Chemistry and Applied Biosciences
- Swiss Federal Institute of Technology (ETH)
- CH-8093 Zurich
- Switzerland
| | - J. A. Hiss
- Department of Chemistry and Applied Biosciences
- Swiss Federal Institute of Technology (ETH)
- CH-8093 Zurich
- Switzerland
| | - G. Schneider
- Department of Chemistry and Applied Biosciences
- Swiss Federal Institute of Technology (ETH)
- CH-8093 Zurich
- Switzerland
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Wang C, Chen YW, Zhang L, Gong XG, Zhou Y, Shang DJ. Melanoma cell surface-expressed phosphatidylserine as a therapeutic target for cationic anticancer peptide, temporin-1CEa. J Drug Target 2015; 24:548-56. [PMID: 26596643 DOI: 10.3109/1061186x.2015.1113539] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We have previously reported that temporin-1CEa, a cationic antimicrobial peptide, exerts preferential cytotoxicity toward cancer cells. However, the exact molecular mechanism for this cancer-selectivity is still largely unknown. Here, we found that the negatively charged phosphatidylserine (PS) expressed on cancer cell surface serves as a target for temporin-1CEa. Our results indicate that human A375 melanoma cells express 50-fold more PS than non-cancerous HaCaT cells. The expression of cell surface PS in various cancer cell lines closely correlated with their ability to be recognized, bound and killed by temporin-1CEa. Additionally, the cytotoxicity of temporin-1CEa against A375 cells can be ameliorated by annexin V, which binds to cell surface PS with high affinity. Moreover, the data of isothermal titration calorimetry assay further confirmed a direct binding of temporin-1CEa to PS, at a ratio of 1:5 (temporin-1CEa:PS). Interestingly, the circular dichroism spectra analysis using artificial biomembrane revealed that PS not only provides electrostatic attractive sites for temporin-1CEa but also confers the membrane-bound temporin-1CEa to form α-helical structure, therefore, enhances the affinity and membrane disrupting ability of temporin-1CEa. In summary, these findings suggested that the melanoma cells expressed PS may serve as a promising target for temporin-1CEa or other cationic anticancer peptides.
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Affiliation(s)
- Che Wang
- a Department of Pharmacy , School of Chemistry and Chemical Engineering, Liaoning Normal University , Dalian , China and.,b Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery , School of Life Science, Liaoning Normal University , Dalian , China
| | - Yin-Wang Chen
- a Department of Pharmacy , School of Chemistry and Chemical Engineering, Liaoning Normal University , Dalian , China and
| | - Liang Zhang
- a Department of Pharmacy , School of Chemistry and Chemical Engineering, Liaoning Normal University , Dalian , China and
| | - Xian-Ge Gong
- b Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery , School of Life Science, Liaoning Normal University , Dalian , China
| | - Yang Zhou
- a Department of Pharmacy , School of Chemistry and Chemical Engineering, Liaoning Normal University , Dalian , China and
| | - De-Jing Shang
- b Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery , School of Life Science, Liaoning Normal University , Dalian , China
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Cruz e Carvalho A, Márquez CAP, Azevedo RB, Joanitti GA, Pires Júnior OR, Fontes W, Castro MS. Cytotoxic Activity and Antiproliferative Effects of Crude Skin Secretion from Physalaemus nattereri (Anura: Leptodactylidae) on in vitro Melanoma Cells. Toxins (Basel) 2015; 7:3989-4005. [PMID: 26457717 PMCID: PMC4626716 DOI: 10.3390/toxins7103989] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 08/24/2015] [Accepted: 08/27/2015] [Indexed: 11/23/2022] Open
Abstract
Anuran secretions are rich sources of bioactive molecules, including antimicrobial and antitumoral compounds. The aims of this study were to investigate the therapeutic potential of Physalaemus nattereri skin secretion against skin cancer cells, and to assess its cytotoxic action mechanisms on the murine melanoma cell line B16F10. Our results demonstrated that the crude secretion reduced the viability of B16F10 cells, causing changes in cell morphology (e.g., round shape and structure shrinkage), reduction in mitochondrial membrane potential, increase in phosphatidylserine exposure, and cell cycle arrest in S-phase. Together, these changes suggest that tumor cells die by apoptosis. This skin secretion was also subjected to chromatographic fractioning using RP-HPLC, and eluted fractions were assayed for antiproliferative and antibacterial activities. Three active fractions showed molecular mass components in a range compatible with peptides. Although the specific mechanisms causing the reduced cell viability and cytotoxicity after the treatment with crude secretion are still unknown, it may be considered that molecules, such as the peptides found in the secretion, are effective against B16F10 tumor cells. Considering the growing need for new anticancer drugs, data presented in this study strongly reinforce the validity of P. nattereri crude secretion as a rich source of new anticancer molecules.
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Affiliation(s)
- Andréa Cruz e Carvalho
- Laboratory of Toxinology, Department of Physiological Sciences/IB, University of Brasília, Brasília/DF, CEP 70.910-900, Brazil.
- Laboratory of Biochemistry and Protein Chemistry, Department of Cell Biology/IB, University of Brasília, Brasília/DF, CEP 70.910-900, Brazil.
| | - César Augusto Prías Márquez
- Laboratory of Toxinology, Department of Physiological Sciences/IB, University of Brasília, Brasília/DF, CEP 70.910-900, Brazil.
- Laboratory of Biochemistry and Protein Chemistry, Department of Cell Biology/IB, University of Brasília, Brasília/DF, CEP 70.910-900, Brazil.
| | - Ricardo Bentes Azevedo
- Department of Genetics and Morphology/IB, University of Brasília, Brasília/DF, CEP 70.910-900, Brazil.
| | - Graziella Anselmo Joanitti
- Department of Genetics and Morphology/IB, University of Brasília, Brasília/DF, CEP 70.910-900, Brazil.
- Faculty of Ceilândia, University of Brasília, Ceilândia/DF, CEP 72.220-140, Brazil.
| | - Osmindo Rodrigues Pires Júnior
- Laboratory of Toxinology, Department of Physiological Sciences/IB, University of Brasília, Brasília/DF, CEP 70.910-900, Brazil.
| | - Wagner Fontes
- Laboratory of Biochemistry and Protein Chemistry, Department of Cell Biology/IB, University of Brasília, Brasília/DF, CEP 70.910-900, Brazil.
| | - Mariana S Castro
- Laboratory of Toxinology, Department of Physiological Sciences/IB, University of Brasília, Brasília/DF, CEP 70.910-900, Brazil.
- Laboratory of Biochemistry and Protein Chemistry, Department of Cell Biology/IB, University of Brasília, Brasília/DF, CEP 70.910-900, Brazil.
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da Costa JP, Carvalhais V, Amado F, Silva A, Nogueira-Ferreira R, Ferreira R, Helguero L, Vitorino R. Anti-tumoral activity of human salivary peptides. Peptides 2015. [PMID: 26211891 DOI: 10.1016/j.peptides.2015.07.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Chemotherapy continues to be the standard treatment for advanced or metastasized cancer. However, commonly used chemotherapeutic agents may induce damage in healthy cells and tissues. Thus, in recent years, there has been an increased focus on the development of new, efficient anticancer drugs exhibiting low toxicity and that are not affected by mechanisms of chemoresistance. In the present work, we tested synthetic and naturally obtained human salivary peptides against breast, prostate, colon, osteosarcoma and bladder cancer cell lines (T47-D, PC-3, HT-29, MG63, T-24, respectively). Results have showed that there is a reduced cell population increase that is peptide-, cell- and possibly pathway-specific, with the most potent effect observed in observed in T-47D breast cancer cells. Protein expression and microscopy results further indicate that, in this cell line, the peptide with the sequence GPPPQGGRPQG (GG peptide) interferes with the ability of cell adhesion proteins to stabilize adherens junctions, such as E-cadherin, leading to apoptosis. These promising results encourage future works aimed at disclosing the vast potential of salivary peptides as new therapeutic agents.
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Affiliation(s)
- João Pinto da Costa
- Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Virginia Carvalhais
- Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Francisco Amado
- Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Artur Silva
- QOPNA, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rita Nogueira-Ferreira
- Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rita Ferreira
- Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Luísa Helguero
- Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; QOPNA, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; Institute for Biomedicine-iBiMED, Health Sciences Program, University of Aveiro, Portugal.
| | - Rui Vitorino
- Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; Institute for Biomedicine-iBiMED, Health Sciences Program, University of Aveiro, Portugal.
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Zhang M, Xu WY, Wang JM, Luan JS, Dong HN, Zhang YJ, Li XQ, Sun DH. Preparation and characterization ofRana chensinensisskin extract/poly(ε-caprolactone) electrospun membranes as antibacterial fibrous mats. J Appl Polym Sci 2015. [DOI: 10.1002/app.42030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Mei Zhang
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Wen-Yu Xu
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Jia-Mian Wang
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Jia-Shuang Luan
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - He-Nan Dong
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Yu-Jing Zhang
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Xue-Qi Li
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Da-Hui Sun
- Norman Bethune First Hospital, Jilin University; Changchun 130021 China
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37
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Xu X, Lai R. The chemistry and biological activities of peptides from amphibian skin secretions. Chem Rev 2015; 115:1760-846. [PMID: 25594509 DOI: 10.1021/cr4006704] [Citation(s) in RCA: 220] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xueqing Xu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology , Kunming 650223, Yunnan, China
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38
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Holden WM, Reinert LK, Hanlon SM, Parris MJ, Rollins-Smith LA. Development of antimicrobial peptide defenses of southern leopard frogs, Rana sphenocephala, against the pathogenic chytrid fungus, Batrachochytrium dendrobatidis. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2015; 48:65-75. [PMID: 25218643 DOI: 10.1016/j.dci.2014.09.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 09/04/2014] [Accepted: 09/05/2014] [Indexed: 06/03/2023]
Abstract
Amphibian species face the growing threat of extinction due to the emerging fungal pathogen Batrachochytrium dendrobatidis, which causes the disease chytridiomycosis. Antimicrobial peptides (AMPs) produced in granular glands of the skin are an important defense against this pathogen. Little is known about the ontogeny of AMP production or the impact of AMPs on potentially beneficial symbiotic skin bacteria. We show here that Rana (Lithobates) sphenocephala produces a mixture of four AMPs with activity against B. dendrobatidis, and we report the minimum inhibitory concentration (MIC) of synthesized replicates of these four AMPs tested against B. dendrobatidis. Using mass spectrometry and protein quantification assays, we observed that R. sphenocephala does not secrete a mature suite of AMPs until approximately 12 weeks post-metamorphosis, and geographically disparate populations produce a different suite of peptides. Use of norepinephrine to induce maximal secretion significantly reduced levels of culturable skin bacteria.
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Affiliation(s)
- Whitney M Holden
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Laura K Reinert
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Shane M Hanlon
- Department of Biological Sciences, University of Memphis, Memphis, TN 38152, USA
| | - Matthew J Parris
- Department of Biological Sciences, University of Memphis, Memphis, TN 38152, USA
| | - Louise A Rollins-Smith
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA; Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA; Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.
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39
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Antitumor activity of recombinant antimicrobial peptide penaeidin-2 against kidney cancer cells. ACTA ACUST UNITED AC 2014; 34:529-534. [DOI: 10.1007/s11596-014-1310-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 06/13/2014] [Indexed: 01/30/2023]
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40
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Wu D, Gao Y, Qi Y, Chen L, Ma Y, Li Y. Peptide-based cancer therapy: opportunity and challenge. Cancer Lett 2014; 351:13-22. [PMID: 24836189 DOI: 10.1016/j.canlet.2014.05.002] [Citation(s) in RCA: 212] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 03/31/2014] [Accepted: 05/01/2014] [Indexed: 01/01/2023]
Abstract
Cancer is one of the leading causes of death worldwide. Conventional cancer therapies mainly focus on mass cell killing without high specificity and often cause severe side effects and toxicities. Peptides are a novel class of anticancer agents that could specifically target cancer cells with lower toxicity to normal tissues, which will offer new opportunities for cancer prevention and treatment. Anticancer peptides face several therapeutic challenges. In this review, we present the sources and mechanisms of anticancer peptides and further discuss modification strategies to improve the anticancer effects of bioactive peptides.
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Affiliation(s)
- Dongdong Wu
- College of Medicine, Henan University, Kaifeng 475004, Henan, China
| | - Yanfeng Gao
- School of Life Science, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Yuanming Qi
- School of Life Science, Zhengzhou University, Zhengzhou 450001, Henan, China.
| | - Lixiang Chen
- School of Life Science, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Yuanfang Ma
- College of Medicine, Henan University, Kaifeng 475004, Henan, China
| | - Yanzhang Li
- College of Medicine, Henan University, Kaifeng 475004, Henan, China.
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Gu Y, Dong N, Shan A, Ma Q, Li J, Cheng B. Antitumor effect of the antimicrobial peptide GLI13-8 derived from domain of the avian β-defensin-4. Acta Biochim Biophys Sin (Shanghai) 2013; 45:904-11. [PMID: 24047976 DOI: 10.1093/abbs/gmt098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
We previously reported that GLI13-8, one of cationic antimicrobial peptides from linear avian β-defensin-4 (RL38) analogs, exhibited high antimicrobial activities against both Gram-negative and Gram-positive bacteria. In the present study, we reported the in vitro cytotoxicity of GLI13-8 using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Results showed that the cytotoxicity of GLI13-8 in three human carcinoma cells (HepG2, SGC7901, and A375) was in a dose-dependent manner. When the concentration of GLI13-8 is <128 μM, it had no toxicity towards the normal human fibroblasts (MRC-5). The Annexin-V-FITC/PI staining assay, the Hoechst 33258/PI staining assay, the permeability of fluorescein macromolecules and scanning electron microscope assays, mitochondrial membrane potential assay, caspases-3 and poly ADP-ribose polymerase (PARP) assays have been carried out. Results indicated that apoptosis was induced by GLI13-8 in HepG2 cells, and demonstrated that GLI13-8 induced loss of mitochondrial membrane potential, disruption of HepG2 cell membranes, and activation of caspase-3 and PARP. These findings suggested that GLI13-8 may be an effective agent for HepG2 cells.
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Affiliation(s)
- Yao Gu
- Laboratory of Molecular Nutrition and Immunity, Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China
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Attoub S, Arafat H, Mechkarska M, Conlon JM. Anti-tumor activities of the host-defense peptide hymenochirin-1B. ACTA ACUST UNITED AC 2013; 187:51-6. [PMID: 24185042 DOI: 10.1016/j.regpep.2013.10.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 10/23/2013] [Accepted: 10/28/2013] [Indexed: 11/17/2022]
Abstract
The hymenochirins are a family of cationic, amphipathic, α-helical host-defense peptides, first isolated from skin secretions of the Congo clawed frog Hymenochirus boettgeri (Pipidae). Of the four hymenochirins tested, hymenochirin-1B (IKLSPETKDNLKKVLKGAIKGAIVAKMV.NH2) shows the greatest cytotoxic potency against non-small cell lung adenocarcinoma A549 cells (LC50=2.5±0.2 μM), breast adenocarcinoma MDA-MB-231 cells (LC50=9.0±0.3 μM), colorectal adenocarcinoma HT-29 cells (LC50=9.7±0.2 μM), and hepatocarcinoma HepG2 cells (LC50=22.5±1.4 μM) with appreciably less hemolytic activity against human erythrocytes (LC50=213±18μM). Structure-activity relationships were investigated by synthesizing analogs of hymenochirin-1B in which Pro(5), Glu(6) and Asp(9)on the hydrophilic face of the helix were replaced by one or more L-lysine or D-lysine residues. The [D9K] analog displays the greatest increase in potency against all four cell lines (up to 6 fold) but hemolytic activity also increases (LC50=174±12 μM). The [D9k] and [E6k,D9k] analogs retain relatively high cytotoxic potency against the tumor cells (LC50 in the range 2.1-21 μM) but show reduced hemolytic activity (LC50>300 μM). The data suggest that hymenochirin-1B has therapeutic potential as a template to generate potent, non-toxic anti-cancer agents.
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Affiliation(s)
- Samir Attoub
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
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Gaspar D, Veiga AS, Castanho MARB. From antimicrobial to anticancer peptides. A review. Front Microbiol 2013; 4:294. [PMID: 24101917 PMCID: PMC3787199 DOI: 10.3389/fmicb.2013.00294] [Citation(s) in RCA: 479] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Accepted: 09/11/2013] [Indexed: 12/26/2022] Open
Abstract
Antimicrobial peptides (AMPs) are part of the innate immune defense mechanism of many organisms. Although AMPs have been essentially studied and developed as potential alternatives for fighting infectious diseases, their use as anticancer peptides (ACPs) in cancer therapy either alone or in combination with other conventional drugs has been regarded as a therapeutic strategy to explore. As human cancer remains a cause of high morbidity and mortality worldwide, an urgent need of new, selective, and more efficient drugs is evident. Even though ACPs are expected to be selective toward tumor cells without impairing the normal body physiological functions, the development of a selective ACP has been a challenge. It is not yet possible to predict antitumor activity based on ACPs structures. ACPs are unique molecules when compared to the actual chemotherapeutic arsenal available for cancer treatment and display a variety of modes of action which in some types of cancer seem to co-exist. Regardless the debate surrounding the definition of structure-activity relationships for ACPs, great effort has been invested in ACP design and the challenge of improving effective killing of tumor cells remains. As detailed studies on ACPs mechanisms of action are crucial for optimizing drug development, in this review we provide an overview of the literature concerning peptides' structure, modes of action, selectivity, and efficacy and also summarize some of the many ACPs studied and/or developed for targeting different solid and hematologic malignancies with special emphasis on the first group. Strategies described for drug development and for increasing peptide selectivity toward specific cells while reducing toxicity are also discussed.
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Affiliation(s)
- Diana Gaspar
- Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de LisboaLisbon, Portugal
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Tian Y, Wang H, Li B, Ke M, Wang J, Dou J, Zhou C. The cathelicidin-BF Lys16 mutant Cbf-K16 selectively inhibits non-small cell lung cancer proliferation in vitro. Oncol Rep 2013; 30:2502-10. [PMID: 23982315 DOI: 10.3892/or.2013.2693] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 08/02/2013] [Indexed: 11/05/2022] Open
Abstract
The 30-amino acid antimicrobial peptide Cbf-K16 is a cathelicidin-BF (BF-30) Lys16 mutant derived from the snake venom of Bungarus fasciatus. Our previous study found that BF-30 selectively inhibited the proliferation of the metastatic melanoma cell line B16F10 in vitro and in vivo, but had a negligible effect on human lung cells. In the present study, it was demonstrated for the first time that Cbf-K16 selectively inhibits the proliferation of lung carcinoma cells in vitro, with low toxicity to normal cells. The half-maximal inhibitory concentrations (IC50) of Cbf-K16 against H460 human non-small cell lung carcinoma cells and mouse Lewis lung cancer cells were only 16.5 and 10.5 µM, respectively, which were much less compared to that of BF-30 (45 and 40.3 µM). Data using a transmission electron microscope (TEM) assay showed that, at 20 and 40 µM, Cbf-K16 induced the rupture of the cytoplasmic membrane, which was consistent with data obtained from lactate dehydrogenase (LDH) release assays. The LDH release increased from 17.8 to 52.9% as the duration and dosage of Cbf-K16 increased. Annexin V-fluorescein and propidium iodide staining assays indicated that there were no obvious apoptotic effects at the different dosages and times tested. In H460 cells, the rate of genomic DNA binding increased from 51.9 to 86.8% as the concentration of Cbf-K16 increased from 5 to 10 µM. These data indicate that Cbf-K16 selectively inhibits the proliferation of lung carcinoma cells via cytoplasmic membrane permeabilization and DNA binding, rather than apoptosis. Although Cbf-K16 displayed significant cytotoxic activity (40 µM) against tumor cells, in splenocytes no significant inhibitory effect was observed and hemolysis was only 5.6%. These results suggest that Cbf-K16 is a low-toxicity anti-lung cancer drug candidate.
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Affiliation(s)
- Yuwei Tian
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, P.R. China
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Almaaytah A, Tarazi S, Mhaidat N, Al-Balas Q, Mukattash TL. Mauriporin, a Novel Cationic α-Helical Peptide with Selective Cytotoxic Activity Against Prostate Cancer Cell Lines from the Venom of the Scorpion Androctonus mauritanicus. Int J Pept Res Ther 2013. [DOI: 10.1007/s10989-013-9350-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yang QZ, Wang C, Lang L, Zhou Y, Wang H, Shang DJ. Design of potent, non-toxic anticancer peptides based on the structure of the antimicrobial peptide, temporin-1CEa. Arch Pharm Res 2013; 36:1302-10. [PMID: 23609760 DOI: 10.1007/s12272-013-0112-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 03/28/2013] [Indexed: 01/04/2023]
Abstract
Recent advances in the search for novel anticancer agents have indicated that the positively charged antimicrobial peptides have emerged as promising agents offering several advantages over the conventional anticancer drugs. As a naturally occurring, cationic, α-helical antimicrobial peptide, temproin-1CEa has been proved to exhibit a potent anticancer effect and a moderate hemolytic activity. In order to reduce the hemolytic activity of temporin-1CEa and improve its anticancer potency towards a range of human breast cancer cells, in the present study, six analogs of temporin-1CEa were rationally designed and synthesized. The amphipathicity levels and α-helical structural patterns of peptides were reserved, while their cationic property and hydrophobicity were changed. The results of MTT and hemolysis assay indicated that the analog peptides displayed an improved anticancer activity and showed an overall optimized therapeutic index. The hydrophobicity of peptides was positively correlated with their hemolytic and antitumor activities. Moreover, the data suggest a strategy of increasing the cationicity while maintaining the moderate hydrophobicity of naturally occurring amphipathic α-helical peptides to generate analogs with improved cytotoxicity against tumor cells but decreased activity against non-neoplastic cells such as human erythrocytes. This work highlights the potential for rational design and synthesis of improved antimicrobial peptides that have the capability to be used therapeutically for treatment of cancers.
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Affiliation(s)
- Qing-Zhu Yang
- Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, 116029, China
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Wang C, Zhou Y, Li S, Li H, Tian L, Wang H, Shang D. Anticancer mechanisms of temporin-1CEa, an amphipathic α-helical antimicrobial peptide, in Bcap-37 human breast cancer cells. Life Sci 2013; 92:1004-14. [PMID: 23583573 DOI: 10.1016/j.lfs.2013.03.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 03/12/2013] [Accepted: 03/27/2013] [Indexed: 12/21/2022]
Abstract
AIMS Temporin-1CEa, a 17-residue antimicrobial peptide, is known to exert broad-spectrum anticancer activity that acts preferentially on cancer cells instead of normal cells. However, the mechanism of cancer cell death induced by temporin-1CEa is weakly understood. MAIN METHODS Here, we investigated the cytotoxic and membrane-disrupting effects of temporin-1CEa on human breast cancer cell line Bcap-37, using MTT assay, electronic microscope observation, fluorescence imaging and flow cytometry analysis. KEY FINDINGS The MTT assay indicated that one-hour temporin-1CEa treatment led to rapid cell death in either caspase-dependent or -independent manner. The electronic microscope observation suggested that temporin-1CEa exposure resulted in profound morphological changes in Bcap-37 cells. The fluorescence imaging and flow cytometry analysis demonstrated that temporin-1CEa exhibited membrane-disrupting property characterized by induction of cell-surface phosphatidylserine exposure, elevation of plasma membrane permeability, and rapid transmembrane potential depolarization. Moreover, temporin-1CEa might also induce rapid cell death through mitochondria-involved mechanisms, including rapid intracellular Ca(2+) leakage, collapse of mitochondrial membrane potential (Δφm) and over-generation of reactive oxygen species (ROS). SIGNIFICANCE In summary, the present study indicates that temporin-1CEa triggers a rapid cytotoxicity in Bcap-37 cells through membrane-destruction and intracellular mechanisms involving mitochondria. These intracellular mechanisms and direct membrane-destruction effect were evaluated helping to understand the detail action of antimicrobial peptides in mammalian cancer cells.
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Affiliation(s)
- Che Wang
- Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian 116029, China
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Wang C, Tian LL, Li S, Li HB, Zhou Y, Wang H, Yang QZ, Ma LJ, Shang DJ. Rapid cytotoxicity of antimicrobial peptide tempoprin-1CEa in breast cancer cells through membrane destruction and intracellular calcium mechanism. PLoS One 2013; 8:e60462. [PMID: 23577112 PMCID: PMC3618425 DOI: 10.1371/journal.pone.0060462] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Accepted: 02/26/2013] [Indexed: 12/27/2022] Open
Abstract
Temporin-1CEa is an antimicrobial peptide isolated from the skin secretions of the Chinese brown frog (Rana chensinensis). We have previously reported the rapid and broad-spectrum anticancer activity of temporin-1CEa in vitro. However, the detailed mechanisms for temporin-1CEa-induced cancer cell death are still weakly understood. In the present study, the mechanisms of temporin-1CEa-induced rapid cytotoxicity on two human breast cancer cell lines, MDA-MB-231 and MCF-7, were investigated. The MTT assay and the LDH leakage assay indicated that one-hour of incubation with temporin-1CEa led to cytotoxicity in a dose-dependent manner. The morphological observation using electronic microscopes suggested that one-hour exposure of temporin-1CEa resulted in profound morphological changes in both MDA-MB-231 and MCF-7 cells. The membrane-disrupting property of temporin-1CEa was further characterized by induction of cell-surface exposure of phosphatidylserine, elevation of plasma membrane permeability and rapid depolarization of transmembrane potential. Moreover, temporin-1CEa evoked intracellular calcium ion and reactive oxygen species (ROS) elevations as well as collapse of mitochondrial membrane potential (Δφm). In summary, the present study indicates that temporin-1CEa triggers rapid cell death in breast cancer cells. This rapid cytotoxic activity might be mediated by both membrane destruction and intracellular calcium mechanism.
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Affiliation(s)
- Che Wang
- Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, China
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, China
| | - Li-Li Tian
- Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, China
| | - Song Li
- Laboratory of Biophysics and Pharmacology, School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian, China
| | - Hui-Bing Li
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, China
| | - Yang Zhou
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, China
| | - He Wang
- Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, China
| | - Qing-Zhu Yang
- Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, China
| | - Li-Jie Ma
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, China
| | - De-Jing Shang
- Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, China
- Faculty of Life Science, Liaoning Normal University, Dalian, China
- * E-mail:
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Attoub S, Mechkarska M, Sonnevend A, Radosavljevic G, Jovanovic I, Lukic ML, Conlon JM. Esculentin-2CHa: a host-defense peptide with differential cytotoxicity against bacteria, erythrocytes and tumor cells. Peptides 2013; 39:95-102. [PMID: 23159562 DOI: 10.1016/j.peptides.2012.11.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 11/06/2012] [Accepted: 11/06/2012] [Indexed: 02/02/2023]
Abstract
The host-defense peptide, esculentin-2CHa (GFSSIFRGVA(10)KFASKGLGK D(20)LAKLGVDLVA(30) CKISKQC) shows potent (MIC≤6 μM) growth inhibitory activity against clinical isolates of multidrug-resistant strains of Staphylococcus aureus, Acinetobacter baumannii, and Stenotrophomonas maltophilia and differential cytotoxic activity against human erythrocytes (LC(50)=150 μM) and human non-small cell lung adenocarcinoma A549 cells (LC(50)=10 μM). Esculentin-2CHa significantly (P<0.01) stimulates the release of the anti-inflammatory cytokine IL-10 by mouse lymphoid cells and elevates its production after stimulation with concanavalin A and significantly (P<0.05) stimulates TNF-α production by peritoneal macrophages. Effects on IL-6 and IL-1β production were not significant. Removal of the hydrophobic N-terminal hexapeptide (GFSSIF) from esculentin-2CHa results in abolition of growth inhibitory activity against S. aureus and cytotoxic activity against erythrocytes and A549 cells as well as a marked (≥16-fold) reduction in potency against A. baumannii and S. maltophilia. The primary structure of esculentin-2 has been poorly conserved between frog species but evolutionary pressure has acted to maintain the hydrophobic character of this N-terminal hexapeptide sequence. Removal of the cyclic C-terminal domain (CKISKQC) and replacement of the Cys(31) and Cys(37) residues by serine resulted in appreciable decreases in cytotoxicity against all microorganisms and against mammalian cells. The more cationic [D20K, D27K] analog showed a modest increase in potency against all microorganisms (up to 4-fold) but a marked increase in cytotoxicity against erythrocytes (LC(50)=11 μM) and A549 cells (LC(50)=3 μM).
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Affiliation(s)
- Samir Attoub
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, 17666 Al-Ain, United Arab Emirates
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Transformation of the naturally occurring frog skin peptide, alyteserin-2a into a potent, non-toxic anti-cancer agent. Amino Acids 2012; 44:715-23. [PMID: 22965637 DOI: 10.1007/s00726-012-1395-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 08/24/2012] [Indexed: 01/06/2023]
Abstract
Alyteserin-2a (ILGKLLSTAAGLLSNL.NH(2)) is a cationic, amphipathic α-helical cell-penetrating peptide, first isolated from skin secretions of the midwife toad Alytes obstetricans. Structure-activity relationships were investigated by synthesizing analogs of alyteserin-2a in which amino acids on the hydrophobic face of the helix were replaced by L-tryptophan and amino acids on the hydrophilic face were replaced by one or more L-lysine or D-lysine residues. The Trp-containing peptides display increased cytotoxic activity against non-small cell lung adenocarcinoma A549 cells (up to 11-fold), but hemolytic activity against human erythrocytes increases in parallel. The potency of the N15K analog against A549 cells (LC(50) = 13 μM) increases sixfold relative to alyteserin-2a and the therapeutic index (ratio of LC(50) for erythrocytes and tumor cells) increases twofold. Incorporation of a D-Lys(11) residue into the N15K analog generates a peptide that retains potency against A549 cells (LC(50) = 15 μM) but whose therapeutic index is 13-fold elevated relative to the native peptide. [G11k, N15K] alyteserin-2a is also active against human hepatocarcinoma HepG2 cells (LC(50) = 26 μM), breast adenocarcinoma MDA-MB-231 cells (LC(50) = 20 μM), and colorectal adenocarcinoma HT-29 cells (LC(50) = 28 μM). [G11k, N15K] alyteserin-2a, in concentrations as low as 1 μg/mL, significantly (P < 0.05) inhibits the release of the immune-suppressive cytokines IL-10 and TGF-β from unstimulated and concanavalin A-stimulated peripheral blood mononuclear cells. The data suggest a strategy of increasing the cationicity while reducing the helicity of naturally occurring amphipathic α-helical peptides to generate analogs with improved cytotoxicity against tumor cells but decreased activity against non-neoplastic cells.
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