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Stable gastric pentadecapeptide BPC 157 may counteract myocardial infarction induced by isoprenaline in rats

Barišić, Ivan; Balenović, Diana; Udovičić, Mario; Bardak, Darija; Strinić, Dean; Vlainić, Josipa; Vraneš, Hrvoje; Smoday, Ivan M.; Krezić, Ivan; Milavić, Marija; Sikirić, Sunčana; Uzun, Sandra; Živanović Posilović, Gordana; Štrbe, Sanja; Vukoja, Ivan; Lovrić, Eva; Lozić, Marin; Sever, Marko; Lovrić Benčić, Martina; Boban Blagaić, Alenka; Skrtić, Anita; Seiwerth, Sven; Sikirić, Predrag (2022) Stable gastric pentadecapeptide BPC 157 may counteract myocardial infarction induced by isoprenaline in rats. Biomedicines, 10 (2). ISSN 2227-9059

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We revealed that the stable gastric pentadecapeptide BPC 157, a useful peptide therapy against isoprenaline myocardial infarction, as well as against isoprenaline myocardial reinfarction, may follow the counteraction of the recently described occlusion-like syndrome, induced peripherally and centrally, which was described for the first time in isoprenaline- treated rats. BPC 157 (10 ng/kg, 10 µg/kg i.p.), L-NAME (5 mg/kg i.p.), and L-arginine (200 mg/kg i.p.) were given alone or together at (i) 30 min before or, alternatively, (ii) at 5 min after isoprenaline (75 or 150 mg/kg s.c.). At 30 min after isoprenaline 75 mg/kg s.c., we noted an early multiorgan failure (brain, heart, lung, liver, kidney and gastrointestinal lesions), thrombosis, intracranial (superior sagittal sinus) hypertension, portal and caval hypertension, and aortal hypotension, in its full presentation (or attenuated by BPC 157 therapy (given at 5 min after isoprenaline) via activation of the azygos vein). Further, we studied isoprenaline (75 or 150 mg/kg s.c.) myocardial infarction (1 challenge) and reinfarction (isoprenaline at 0 h and 24 h, 2 challenges) in rats (assessed at the end of the subsequent 24 h period). BPC 157 reduced levels of all necrosis markers, CK, CK-MB, LDH, and cTnT, and attenuated gross (no visible infarcted area) and histological damage, ECG (no ST-T ischemic changes), and echocardiography (preservation of systolic left ventricular function) damage induced by isoprenaline. Its effect was associated with a significant decrease in oxidative stress parameters and likely maintained NO system function, providing that BPC 157 interacted with eNOS and COX2 gene expression in a particular way and counteracted the noxious effect of the NOS- blocker, L-NAME.

Item Type: Article
Uncontrolled Keywords: pentadecapeptide BPC 157 ; isoprenaline ; occlusion-like syndrome ; myocardial infarction ; oxidative stress ; L-NAME ; L-arginine ; rats
Subjects: BIOMEDICINE AND HEALTHCARE > Basic Medical Sciences
BIOMEDICINE AND HEALTHCARE > Clinical Medical Sciences
Divisions: Division of Molecular Medicine
Depositing User: Josipa Vlainić
Date Deposited: 29 Mar 2022 08:59
DOI: 10.3390/biomedicines10020265

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