1
|
El-Huneidi W, Anjum S, Saleh MA, Bustanji Y, Abu-Gharbieh E, Taneera J. Carnosic Acid Protects INS-1 β-Cells against Streptozotocin-Induced Damage by Inhibiting Apoptosis and Improving Insulin Secretion and Glucose Uptake. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072102. [PMID: 35408495 PMCID: PMC9000724 DOI: 10.3390/molecules27072102] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 12/16/2022]
Abstract
Carnosic acid (CA), a natural polyphenolic diterpene derived from Rosmarinus officinalis, has been proven to possess a broad spectrum of medicinal properties. Nevertheless, no studies on its impact on pancreatic β-cells have been conducted to date. Herein, clonal rat INS-1 (832/13) cells were pretreated with CA for 24 h and then incubated with streptozotocin (STZ) for 3 h. Several functional experiments were performed to determine the effect of CA on STZ-induced pancreatic β-cell damage, including cell viability assay, apoptosis analysis, and measurement of the level of insulin secretion, glucose uptake, malondialdehyde (MDA), reactive oxygen species (ROS), and proteins expression. STZ treatment decreased cell survival, insulin secretion, glucose uptake, and increased apoptosis, MDA, and ROS production in INS-1 cells. Furthermore, protein expression/phosphorylation analysis showed significant down-regulation in insulin, PDX-1, PI3K, AKT/p-AKT, and Bcl2. On the other hand, expression of BAX and BAD and cleaved PARP were significantly increased. Interestingly, preincubation with CA reversed the adverse impact of STZ at the cellular and protein expression levels. In conclusion, the data indicate that CA protects β-cells against STZ-induced damage, presumably through its modulatory effect on the different pathways, including the Pi3K/AKT/PDX-1/insulin pathway and mitochondria-mediated apoptosis.
Collapse
Affiliation(s)
- Waseem El-Huneidi
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates;
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates; (S.A.); (M.A.S.); (E.A.-G.)
- Correspondence: (W.E.-H.); (J.T.); Tel.: +971-6-505-7222 (W.E.-H.); +971-6-505-7743 (J.T.)
| | - Shabana Anjum
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates; (S.A.); (M.A.S.); (E.A.-G.)
| | - Mohamed A. Saleh
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates; (S.A.); (M.A.S.); (E.A.-G.)
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Yasser Bustanji
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates;
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates; (S.A.); (M.A.S.); (E.A.-G.)
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman 11942, Jordan
| | - Eman Abu-Gharbieh
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates; (S.A.); (M.A.S.); (E.A.-G.)
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Jalal Taneera
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates;
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates; (S.A.); (M.A.S.); (E.A.-G.)
- Correspondence: (W.E.-H.); (J.T.); Tel.: +971-6-505-7222 (W.E.-H.); +971-6-505-7743 (J.T.)
| |
Collapse
|