Synthesis and characterization of zinc-silibinin complexes: A potential bioactive compound with angiogenic, and antibacterial activity for bone tissue engineering
| Autor: | Desingh Raj Preeth, Rajkumar La Vasanthi, Suvro Chatterjee, Manickaraj Shairam, Subramaniyam Rajalakshmi, Sekaran Saravanan, Selvaraj Vimalraj |
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| Rok vydání: | 2017 |
| Předmět: |
musculoskeletal diseases
0301 basic medicine Staphylococcus aureus Phenanthroline Silibinin chemistry.chemical_element Zinc Microbial Sensitivity Tests Bone and Bones Neocuproine 03 medical and health sciences chemistry.chemical_compound Colloid and Surface Chemistry medicine Escherichia coli Organometallic Compounds Physical and Theoretical Chemistry Osteoblasts Tissue Engineering Osteoblast Cell Differentiation Surfaces and Interfaces General Medicine Bioactive compound Anti-Bacterial Agents RUNX2 030104 developmental biology medicine.anatomical_structure chemistry Silybin Angiogenesis Inducing Agents Antibacterial activity Biotechnology Nuclear chemistry Silymarin |
| Zdroj: | Colloids and surfaces. B, Biointerfaces. 167 |
| ISSN: | 1873-4367 |
| Popis: | Zinc silibinin complex [Zn(sil)(H2O)2] and mixed ligand zinc complexes such as Zn(silibinin)(phenanthroline) [Zn(sil)(phen)], and Zn(silibinin)(neocuproine) [Zn(sil)(neo)] have been synthesized and characterized. The UV-vis spectra of the Zn(II) complexes showed a considerable shift in the intra-ligand transition. From the IR spectra, it is clear that carbonyl group in the C-ring is involved in the metal chelation besides A/C-ring hydroxyl group. Thermal gravimetric analysis showed that [Zn(sil)(neo)] has higher thermal stability compared to the other two Zn(II) complexes. The potential biological activities of the synthesized complexes were studied systematically. In osteoblast differentiation, silibinin and Zn-silibinin complexes enhanced osteoblast differentiation at the cellular level by increasing calcium deposition and ALP activity, and at molecular level increased osteoblast markers include Runx2, type 1 col, ALP and OC mRNAs expression. Additionally, Zn-silibinin complexes showed promising effects on osteoblast differentiation by regulating miR-590/Smad7 signaling pathway. Among the complexes, Zn(sil)(phen) showed more stimulatory effect on osteoblastic differentiation. These complexes also exhibited angiogenic property by increasing VEGF and Ang 1 expression in mouse MSCs and antibacterial activity against E. coli (Gram-negative) and S. aureus (Gram-positive) strains. Thus, the present study demonstrated that the Zn-silibinin complexes exhibit great potential as a pharmacological agent for bone tissue engineering. |
| Databáze: | OpenAIRE |
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