Stable Gastric Pentadecapeptide BPC 157—Possible Novel Therapy of Glaucoma and Other Ocular Conditions

Author:

Sikiric Predrag1,Kokot Antonio2ORCID,Kralj Tamara1,Zlatar Mirna1,Masnec Sanja1,Lazic Ratimir1,Loncaric Kristina1ORCID,Oroz Katarina1,Sablic Marko2,Boljesic Marta2,Antunovic Marko1,Sikiric Suncana3,Strbe Sanja1,Stambolija Vasilije1,Beketic Oreskovic Lidija1,Kavelj Ivana1,Novosel Luka1,Zubcic Slavica1,Krezic Ivan1,Skrtic Anita3ORCID,Jurjevic Ivana1,Boban Blagaic Alenka1,Seiwerth Sven3,Staresinic Mario4

Affiliation:

1. Department of Pharmacology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia

2. Department of Anatomy and Neuroscience, Faculty of Medicine, J.J. Strossmayer University of Osijek, 31000 Osijek, Croatia

3. Department of Pathology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia

4. Department of Surgery, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia

Abstract

Recently, stable gastric pentadecapeptide BPC 157 therapy by activation of collateral pathways counteracted various occlusion/occlusion-like syndromes, vascular, and multiorgan failure, and blood pressure disturbances in rats with permanent major vessel occlusion and similar procedures disabling endothelium function. Thereby, we revealed BPC 157 cytoprotective therapy with strong vascular rescuing capabilities in glaucoma therapy. With these capabilities, BPC 157 therapy can recover glaucomatous rats, normalize intraocular pressure, maintain retinal integrity, recover pupil function, recover retinal ischemia, and corneal injuries (i.e., maintained transparency after complete corneal abrasion, corneal ulceration, and counteracted dry eye after lacrimal gland removal or corneal insensitivity). The most important point is that in glaucomatous rats (three of four episcleral veins cauterized) with high intraocular pressure, all BPC 157 regimens immediately normalized intraocular pressure. BPC 157-treated rats exhibited normal pupil diameter, microscopically well-preserved ganglion cells and optic nerve presentation, normal fundus presentation, nor- mal retinal and choroidal blood vessel presentation, and normal optic nerve presentation. The one episcleral vein rapidly upgraded to accomplish all functions in glaucomatous rats may correspond with occlusion/occlusion-like syndromes of the activated rescuing collateral pathway (azygos vein direct blood flow delivery). Normalized intraocular pressure in glaucomatous rats corresponded to the counteracted intra-cranial (superior sagittal sinus), portal, and caval hypertension, and aortal hypotension in occlusion/occlusion-like syndromes, were all attenuated/eliminated by BPC 157 therapy. Furthermore, given in other eye disturbances (i.e., retinal ischemia), BPC 157 instantly breaks a noxious chain of events, both at an early stage and an already advanced stage. Thus, we further advocate BPC 157 as a therapeutic agent in ocular disease.

Funder

University of Zagreb

Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek

Publisher

MDPI AG

Subject

Drug Discovery,Pharmaceutical Science,Molecular Medicine

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