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Stoyanova E, Mihaylova N, Ralchev N, Ganova P, Bradyanova S, Manoylov I, Raynova Y, Idakieva K, Tchorbanov A. Antitumor Properties of Epitope-Specific Engineered Vaccine in Murine Model of Melanoma. Mar Drugs 2022; 20:md20060392. [PMID: 35736195 PMCID: PMC9227764 DOI: 10.3390/md20060392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/07/2022] [Accepted: 06/07/2022] [Indexed: 02/01/2023] Open
Abstract
Finding new effective compounds of natural origin for composing anti-tumor vaccines is one of the main goals of antitumor research. Promising anti-cancer agents are the gastropodan hemocyanins-multimeric copper-containing glycoproteins used so far for therapy of different tumors. The properties of hemocyanins isolated from the marine snail Rapana thomasiana (RtH) and the terrestrial snail Helix aspersa (HaH) upon their use as carrier-proteins in conjugated vaccines, containing ganglioside mimotope GD3P4 peptide, were studied in the developed murine melanoma model. Murine melanoma cell line B16F10 was used for solid tumor establishment in C57BL/6 mice using various schemes of therapy. Protein engineering, flow cytometry, and cytotoxicity assays were also performed. The administration of the protein-engineered vaccines RtH-GD3P4 or HaH-GD3P4 under the three different regimens of therapy in the B16F10 murine melanoma model suppressed tumor growth, decreased tumor incidence, and prolonged the survival of treated animals. The immunization of experimental mice induced an infiltration of immunocompetent cells into the tumors and generated cytotoxic tumor-specific T cells in the spleen. The treatment also generates significantly higher levels of tumor-infiltrated M1 macrophages, compared to untreated tumor-bearing control mice. This study demonstrated a promising approach for cancer therapy having potential applications for cancer vaccine research.
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Affiliation(s)
- Emiliya Stoyanova
- Laboratory of Experimental Immunology, Stefan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (N.M.); (N.R.); (P.G.); (S.B.); (I.M.)
| | - Nikolina Mihaylova
- Laboratory of Experimental Immunology, Stefan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (N.M.); (N.R.); (P.G.); (S.B.); (I.M.)
| | - Nikola Ralchev
- Laboratory of Experimental Immunology, Stefan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (N.M.); (N.R.); (P.G.); (S.B.); (I.M.)
| | - Petya Ganova
- Laboratory of Experimental Immunology, Stefan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (N.M.); (N.R.); (P.G.); (S.B.); (I.M.)
| | - Silviya Bradyanova
- Laboratory of Experimental Immunology, Stefan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (N.M.); (N.R.); (P.G.); (S.B.); (I.M.)
| | - Iliyan Manoylov
- Laboratory of Experimental Immunology, Stefan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (N.M.); (N.R.); (P.G.); (S.B.); (I.M.)
| | - Yuliana Raynova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (Y.R.); (K.I.)
| | - Krassimira Idakieva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (Y.R.); (K.I.)
| | - Andrey Tchorbanov
- Laboratory of Experimental Immunology, Stefan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (N.M.); (N.R.); (P.G.); (S.B.); (I.M.)
- Correspondence: ; Tel.: + 359-2-979-6357; Fax: +359-2-870-0109
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Pi LQ, Lee WS, Min SH. Hot water extract of oriental melon leaf promotes hair growth and prolongs anagen hair cycle: In vivo and in vitro evaluation. Food Sci Biotechnol 2016; 25:575-80. [PMID: 30263308 DOI: 10.1007/s10068-016-0080-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 11/14/2015] [Accepted: 11/30/2015] [Indexed: 02/07/2023] Open
Abstract
Effects of hot water extracts of oriental melon leaves (OML) on promotion of hair growth were investigated. Topical OML extract administration for hair regeneration was investigated using an in vivo model with C57BL/6 mice. Effects of OML extracts on the human hair growth were investigated using a hair follicle organ culture. OML extracts induced a shortened telogen to anagen conversion and promoted hair growth in the C57BL/6 mouse model. Culture of human hair follicles in the presence of OML extracts for 8 days promoted hair growth and prolonged the anagen duration due to induction of hair follicle cell proliferation in the bulb region. OML extracts exert a hair growth promotion effect and, therefore, can be used as a therapeutic agent for prevention of hair loss.
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