Effects of essential amino acid “Tryptophan” in post burn skin wound healing

Paper Details

Research Paper 01/03/2018
Views (900)
current_issue_feature_image
publication_file

Effects of essential amino acid “Tryptophan” in post burn skin wound healing

Alia Sadiq, Muhammad Qasim Hayat, Gulshan Ara Trali, Ambreen Javed
Int. J. Biosci. 12(3), 147-153, March 2018.
Copyright Statement: Copyright 2018; The Author(s).
License: CC BY-NC 4.0

Abstract

Skin wound healing is a complex process and regulated by various growth factors and vital compounds. This study was carried out to assess the role of tryptophan in post burn skin wound healing by using scald burn model in Balb C mice. We employed tryptophan as topical cream formulation in post burn wound model. Post-wounding analysis showed improved healing represented by smaller wound length, wound area and increased wound cellularity in tryptophan treated group as compared to the control. Comparatively, enhanced expression of CD31 also observed in tryptophan treated group, indicated improved angiogenesis. Immunohistochemical staining showed more number of BrdU+ve proliferating cells in the wound center, revealed that proliferation rate was significantly high in the treated group. It is suggesting that wounds treated with the tryptophan conceded the proliferation phase faster. This study revealed that tryptophan (an essential amino acid) has potential to improve the burn skin wound healing. Therefore, tryptophan-based therapeutics can be a potential candidate to investigate further about their mechanism of action for improved wound healing process.

Ansell DM, Campbell L, Thomason HA, Brass A, Hardman MJ. 2014. A statistical analysis of murine incisional and excisional acute wound models. Wound Repair and Regeneration 22, 281-287.

Bandeira LG, Bortolot BS, Cecatto MJ, Monte-Alto-Costa A, Romana-Souza B. 2015. Exogenous Tryptophan Promotes Cutaneous Wound Healing of Chronically Stressed Mice through Inhibition of TNF-α and IDO Activation. PLoS ONE 10, e0128439.

Barouti N, Mainetti C, Fontao L, Sorg O. 2015. L-Tryptophan as a Novel Potential Pharmacological Treatment for Wound Healing via Aryl Hydrocarbon Receptor Activation. Dermatology 230, 332-9

Brancaleon L, Gloria L, Nikiforos K. 1999. The In Vivo Fluorescence of Tryptophan Moieties in Human Skin Increases with UV Exposure and is a Marker for Epidermal Proliferation. Journal of Investigative Dermatology 113, 977-982.

Celinski K, Konturek PC, Konturek SJ, Slomka M, Cichoz-Lach H, Brzozowski T, Bielanski W. 2011. Effects of melatonin and tryptophan on healing of gastric and duodenal ulcers with Helicobacter pylori infection in humans. Journal of Physiology and Pharmacology 62, 521-526.

Dawson B, Favaloro EJ. 2007. High Rate of Deficiency in the Amino Acids Tryptophan and Histidine in People with Wounds: Implication for Nutrient Targeting in Wound Management—A Pilot Study. Advances in Skin & Wound Care 22, 79-82.

Demidova-Rice TN, Durham JT, Herman IM. 2011. Wound Healing Angiogenesis: Innovations and Challenges in Acute and Chronic Wound Healing. Advances in wound care 1.

Lanis JM, Alexeev E, Colgan S. 2017. Tryptophan Metabolite Activation of the Aryl Hydrocarbon Receptor in Intestinal Epithelia Promotes Mucosal Healing. The FASEB Journal 31.

Le Floc’h N, Otten W, Merlot E. 2011. Tryptophan metabolism, from nutrition to potential therapeutic applications. Amino Acids 41, 1195-1205.

Lerman OZ, Galiano RD, Armour M, Levine JP, Gurtner GC. 2003. Cellular dysfunction in the diabetic fibroblast: impairment in migration, vascular endothelial growth factor production, and response to hypoxia. The American Journal of Pathology 162, 303-12

Lieberman HR. 2003. Nutrition, brain function and cognitive performance. Appetite 40, 245-254.

Mani H, Sidhu GS, Kumari R, et al. 2002. Curcumin differentially regulates TGF-beta1, its receptors and nitric oxide synthase during impaired wound healing. Biofactors 16, 29-43.

Manzke T, Niebert M, Koch UR, Caley A, Vogelgesang S, Hülsmann S, Ponimaskin E, Müller U, Smart TG, Harvey RJ, Richter DW. 2010. Serotonin receptor 1A-modulated phosphorylation of glycine receptor alpha3 controls breathing in mice. Journal of Clinical Investigation 120, 4118-28.

Mori R, Toshikazu K, Toshikazu N, Tohru O, Masahide A. 2004. Impairment of Skin Wound Healing in β-1,4-Galactosyltransferase-Deficient Mice with Reduced Leukocyte Recruitment. American Journal of Pathology 164.

Nunan R, Harding KG, Martin P. 2014. Clinical challenges of chronic wounds: searching for an optimal animal model to recapitulate their complexity. Disease Models & Mechanisms 7, 1205-1213.

Odland G, Ross R. 1968. Human Wound Repair. The Journal of Cell Biology 39.

Richard DM, Dawes MA, Mathias CW, Acheson A, Hill-Kapturczak N, Dougherty DM. 2009. L-tryptophan: basic metabolic functions, behavioral research and therapeutic indications. International Journal of Tryptophan Research 2, 45-60.

Richter DW, Pierrefiche PMLO, Haji A, Bischoff AM, Wilken B, Hanefeld F. 1997. Intracellular signal pathways controlling respiratory neurons. Respiration Physiology 110, 113-23.

Sandyk R. 1992. L-tryptophan in neuropsychiatric disorders: a review. International Journal of Neuroscience 67, 127-144.

Traskman-Bendz L, Haskett RF, Zis AP. 1986. Neuroendocrine effects of L-tryptophan and dexamethasone. Psychopharmacology 89, 85-88.

Wang Y, Gutierrez-Herrera E, Ortega-Martinez A, Anderson RR, Franco W. 2016. UV fluorescence excitation imaging of healing of wounds in skin: Evaluation of wound closure in organ culture model. Lasers in Surgery and Medicine 48, 678-85.

Weller K, Foitzik K, Paus R, Syska W, Maurer M. 2006. Mast cells are required for normal healing of skin wounds in mice. The FASEB Journal 20, 2366-8.

Werner S, Grose R. 2003. Regulation of wound healing by growth factors and cytokines. Physiology Reviews 83, 835-70.

Related Articles

Comparative responses of rice (Oryza sativa L.) to iron toxicity, drought and salinity stress: Morphological, physiological, biochemical and molecular regulation mechanisms

Yaya Touré*, Brahima André Soumahoro, Arthur Martin Affery, Tchoa Koné, Mongomaké Koné, Int. J. Biosci. 28(6), 37-50, June 2026.

Biocontrol potential of indigenous fungal antagonists from soils naturally suppressive to Fusarium oxysporum f. sp. cubense tropical race 4

Arnel V. Somolostro*, Carolina D. Amper, Mellprie B. Marin, Darwin M. Apistar, Myrna G. Ballentes, Ailyn Q. Daniel, Int. J. Biosci. 28(6), 27-36, June 2026.

Basal stem rot of oil palm in Africa: Emerging epidemiology, pathogen diversity and future management challenges

Emmanuel Fumbuka Mabula*, Agatha Aloyce, Alfonce Leonard, Pavithravani B. Venkataramana, Int. J. Biosci. 28(6), 13-26, June 2026.

The role of aberrant glycosylation in autoimmune disease development and progression

Md. Nafis Fuad Prottoy, Sayad Md. Didarul Alam*, Int. J. Biosci. 28(6), 1-12, June 2026.

Solvents’ influence on polyphenolic compound extractions from Lippia multiflora leaves (Mold, 1949), and their antioxidant activity

Kelemin Awa Koné*, Tagouèlbè Tiho, Mariam Sanogo, Casimir Kekou, Kouassi Hervé Tani, Int. J. Biosci. 28(5), 109-116, May 2026.

Economics of selected cropping system practices in the province of La Union, Philippines

Jennifer A. Cabading, V. Sagun Analyn, Angelina T. Gonzales*, Int. J. Biosci. 28(5), 97-108, May 2026.

The hidden burden: A review of toxicity from femoral orthopedic implants

Haroon Habib Beigh*, Nabeel Khan, Mirza Masroor Ali Beg, Int. J. Biosci. 28(5), 84-96, May 2026.