The precise etiopathology of oral mucositis is unclear but the major symptoms of the disease manifest as pain and inflammation. The role of immune dysregulation and perturbed wound healing are implicit, but remain unexplored as yet. Our lab research is focused on assessing the ability of photobiomduation to promote oral wound healing and reduce pain and inflammation. Although our ultimate clinical endpoint is human therapy, these studies are severely limited by both ethical and practical concerns such as loss of function strategies, that are definitive proof for scientific investigations, would involve withholding or nullifying potential therapeutic benefit, possibly aggravating disease conditions in subjects. Therefore, we are pursuing animal models to perform mechanistic loss-of-function studies using biochemical and transgenic strategies. Finally, the precise phenomenon of how light therapy, a physical form of electromagnetic radiation energy converts into biochemical agents like ROS, is being explored via collaborations with physicists and radiation biologists. Our ultimate goal is to applying our understanding of the regulatory aspects of wound healing into developing PBM as an efficacious clinical tool for oral mucositis management.

Project Start
Project End
Budget Start
Budget End
Support Year
Fiscal Year
Total Cost
Indirect Cost
National Institute of Dental & Craniofacial Research
Zip Code
Brown, R S; Arany, P R (2015) Mechanism of drug-induced gingival overgrowth revisited: a unifying hypothesis. Oral Dis 21:e51-61
Anders, Juanita J; Lanzafame, Raymond J; Arany, Praveen R (2015) Low-level light/laser therapy versus photobiomodulation therapy. Photomed Laser Surg 33:183-4
Khan, Imran; Tang, Elieza; Arany, Praveen (2015) Molecular pathway of near-infrared laser phototoxicity involves ATF-4 orchestrated ER stress. Sci Rep 5:10581
Arany, P R; Huang, G X; Gadish, O et al. (2014) Multi-lineage MSC differentiation via engineered morphogen fields. J Dent Res 93:1250-7
Arany, Praveen R; Cho, Andrew; Hunt, Tristan D et al. (2014) Photoactivation of endogenous latent transforming growth factor-?1 directs dental stem cell differentiation for regeneration. Sci Transl Med 6:238ra69
Cho, Andrew; Haruyama, Naoto; Hall, Bradford et al. (2013) TGF-ß regulates enamel mineralization and maturation through KLK4 expression. PLoS One 8:e82267
Finnson, Kenneth W; Arany, Praveen R; Philip, Anie (2013) Transforming Growth Factor Beta Signaling in Cutaneous Wound Healing: Lessons Learned from Animal Studies. Adv Wound Care (New Rochelle) 2:225-237
Tang, Elieza; Arany, Praveen (2013) Photobiomodulation and implants: implications for dentistry. J Periodontal Implant Sci 43:262-8
Hall, Bradford E; Wankhade, Umesh D; Konkel, Joanne E et al. (2013) Transforming growth factor-?3 (TGF-?3) knock-in ameliorates inflammation due to TGF-?1 deficiency while promoting glucose tolerance. J Biol Chem 288:32074-92
Darnell, Max C; Sun, Jeong-Yun; Mehta, Manav et al. (2013) Performance and biocompatibility of extremely tough alginate/polyacrylamide hydrogels. Biomaterials 34:8042-8