Journal
JOURNAL OF SAUDI CHEMICAL SOCIETY
Volume 24, Issue 8, Pages 606-619Publisher
ELSEVIER
DOI: 10.1016/j.jscs.2020.06.003
Keywords
Tetrapeptide; Therapeutic agent; Cytotoxicity; Cell proliferation; Cell migration; Wound healing
Categories
Funding
- Universiti Putra Malaysia (UPM) from Putra Grant-Graduate Student Initiatives [GP-IPS/2017/9577800]
- MyBrain15 (Ministry of Higher Education)
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We report a new small peptide containing four amino acid residues (glycine-aspartic acid-proline-histidine) conjugated with palmitic acid (Palmitoyl-GDPH) that was synthesized, characterized and evaluated for its biological activities. The Palmitoyl-GDPH was prepared by solid phase peptide synthesis (SPPS) with high percentage purity of 98.6%. The results of circular dichroism (CD) demonstrated the feasibility and stability of Palmitoyl-GDPH secondary structure at many temperatures up to 60 degrees C. Palmitoyl-GDPH showed its greatest collagenase inhibition activity and nitric oxide (NO) scavenging effect of 80.00 +/- 2.22% at 1.0 mg/ml and 83.40 +/- 8.08% at 2.5 mg/ml, respectively. In addition, in-vitro cell based study revealed that Palmitoyl-GDPH was not toxic and possessed strong proliferative activity towards normal human dermal fibroblast (NHDF) cell line. Wound scratch assay method showed that Palmitoyl-GDPH significantly promoted the cell migration which progressed faster compared to tetracycline-treated group (positive control) by about 98.39 +/- 2.79% and 95.79 +/- 3.83%, respectively. Collectively, these results suggested that newly synthesized Palmitoyl-GDPH possessed a strong candidate for use as therapeutic agent and can be a novel approach in the treatment of cutaneous wounds. (C) 2020 The Authors. Published by Elsevier B.V. on behalf of King Saud University.
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