Protein conformational modulation by photons

A mechanism for laser treatment effects

Ann D. Liebert, Brian T. Bicknell, Roger D. Adams

Research output: Contribution to journalArticle

15 Citations (Scopus)
3 Downloads (Pure)

Abstract

Responsiveness to low-level laser treatment (LLTT) at a wavelength of 450-910. nm has established it as an effective treatment of medical, veterinary and dental chronic pain, chronic inflammation conditions (arthritis and macular degeneration), wound repair, and lymphoedema, yet the mechanisms underlying the effectiveness of LLLT remain unclear. However, there is now sufficient evidence from recent research to propose an integrated model of LLLT action. The hypothesis presented in this paper is that external applications of photons (through laser at an appropriate dose) modulates the nervous system through an integrated mechanism. This stimulated mechanism involves protein-to-protein interaction, where two or more proteins bind together to facilitate molecular processes, including modification of proteins by members of SUMO (small ubiquitin-related modifier proteins) and also protein phosphorylation and tyrosination. SUMO has been shown to have a role in multiple nuclear and perinuclear targets, including ion channels, and in the maintenance of telomeres and the post-translational modification of genes. The consequence of laser application in treatment, therefore, can be seen as influencing the transmission of neural information via an integrated and rapid modulation of ion channels, achieved through both direct action on photo-acceptors (such as cytochrome c-oxidase) and through indirect modulation via enzymes, including tyrosine hydroxylase (TH), tyrosine kinases and tyrosine kinase receptors. This exogenous action then facilitates an existing photonic biomodulation mechanism within the body, and initiates ion channel modulation both in the periphery and the central nervous system (CNS). Evidence indicates that the ion channel modulation functions predominately through the potassium channels, including two pore leak channels (K2P), which act as signal integrators from the periphery to the cortex. Photonic action also transforms SUMOylation processes at the cell membrane, nucleus and telomeres via signalling processes from the mitochondria (which is the main target of laser absorption) to these targets. Under the hypothesis, these observed biological effects would play a part in the bystander effect, the abscopal effect, and other systemic effects observed with the application of low level laser (LLLT). The implications of the hypothesis are important in that they point to mechanisms that can account for the effectiveness of laser in the treatment and prevention of inflammatory diseases, chronic pain and neurodegenerative disorders.

Original languageEnglish
Pages (from-to)275-281
Number of pages7
JournalMedical Hypotheses
Volume82
Issue number3
DOIs
Publication statusPublished - Mar 2014
Externally publishedYes

Fingerprint

Photons
Lasers
Ion Channels
Small Ubiquitin-Related Modifier Proteins
Optics and Photonics
Proteins
Telomere
Chronic Pain
Therapeutics
Bystander Effect
Sumoylation
Somatoform Disorders
Lymphedema
Potassium Channels
Macular Degeneration
Tyrosine 3-Monooxygenase
Receptor Protein-Tyrosine Kinases
Electron Transport Complex IV
Post Translational Protein Processing
Cell Nucleus

Cite this

Liebert, Ann D. ; Bicknell, Brian T. ; Adams, Roger D. / Protein conformational modulation by photons : A mechanism for laser treatment effects. In: Medical Hypotheses. 2014 ; Vol. 82, No. 3. pp. 275-281.
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Protein conformational modulation by photons : A mechanism for laser treatment effects. / Liebert, Ann D.; Bicknell, Brian T.; Adams, Roger D.

In: Medical Hypotheses, Vol. 82, No. 3, 03.2014, p. 275-281.

Research output: Contribution to journalArticle

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