Cytotoxic and selective effect of RWQWRWQWR peptide and peptides functionalized with the RGD motif
Code | Peptide | IC50, µg/mL (µM) | Selectivity index | Hemolysis (%)a | |
---|---|---|---|---|---|
MCF-7 | Fibroblasts | ||||
1R5R9R | RWQWRWQWR | 120 (81) | > 200 (135)* | > 1.6 | 6.7 |
14 | RGD-Ahx-RWQWRWQWR | 27 (14) | 108 (56) | 4.0 | 7.1 |
R1R5R9R | RRWQWRWQWR | 112 (68) | > 200 (121)* | > 1.8 | 6.4 |
19 | RGD-Ahx-RRWQWRWQWR | 82 (39) | 195 (94) | 2.4 | 2.0 |
a Percentage of hemolysis calculated at the maximum concentration (200 µg/mL). *: IC50 could not be calculated because at the maximum concentration, there was no reduction in viability by 50%; IC50: half maximal inhibitory concentration
The supplementary figures for this article are available at: https://www.explorationpub.com/uploads/Article/file/100852_sup_1.pdf.
ABC: Conceptualization, Software, Validation, Formal analysis, Investigation, Data curation, Writing—original draft. DCA: Validation, Formal analysis, Investigation, Data curation. YVC: Validation, Formal analysis, Investigation. CPG: Conceptualization, Project administration, Funding acquisition, Resources. AUP and JLM: Conceptualization, Methodology, Data curation, Supervision, Resources. ZRM: Conceptualization, Resources, Supervision, Writing—review & editing, Project administration, Funding acquisition, Resources. JGC: Conceptualization, Resources, Supervision, Writing—original draft, Writing—review & editing, Project administration, Funding acquisition, Resources. All authors read and approved the submitted version.
The authors declare that they have no conflicts of interest.
All the experiments were carried out in compliance with the guidelines and standards of Resolution 08430 of 1993 of the Colombian Ministry of Health and Law 84 of 27 December 1989 and were governed by the principles and standards for the care and use of animals, decreed by the institutional Ethics Committee from Science Faculty (Act 03-2018) of the National University of Colombia.
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The raw data supporting the conclusions of this manuscript will be made available by the authors, without undue reservation, to any qualified researcher.
This research was funded by COLCIENCIAS grant number [RC No. 706-2018]. Project: “Desarrollo de un medicamento contra el cáncer de mama basado en un péptido polivalente derivado de la LfcinB: Estudio de la fase preclínica (fase cero), caracterización fisicoquímica de un lote del fármaco para estudios preclínicos”. Code [110180762973]. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
© The Author(s) 2024.