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Nesterkina M, Vashchenko O, Vashchenko P, Lisetski L, Kravchenko I, K H Hirsch A, Lehr CM. Thermoresponsive cholesteric liquid-crystal systems doped with terpenoids as drug delivery systems for skin applications. Eur J Pharm Biopharm 2023; 191:139-149. [PMID: 37669726 DOI: 10.1016/j.ejpb.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/31/2023] [Accepted: 09/02/2023] [Indexed: 09/07/2023]
Abstract
Stimuli-responsive and tunable soft-matter systems are an advanced class of materials applicable for drug delivery. Liquid crystals (LCs) are promising candidates as multifunctional materials that can respond to temperature, light or magnetic field. Particularly, ordering and physical properties of thermoresponsive LCs depend predominantly on temperature as external trigger. The current work addresses an elegant strategy to implement the anisotropic properties of thermoresponsive LCs with a view to extending their application for drug delivery. We firstly fabricated novel compositions with a thermotropic core based on natural products - cholesteryl esters and mono-/bicyclic terpenoids. The distinctive feature of aforementioned systems is their temperature-induced switchability of drug release by transition to the LC state, depending on the skin temperature. Their mesomorphic and optical behavior was characterized via differential scanning calorimetry and polarizing optical microscopy. Furthermore, we describe the dependence of helical pitch on LC formulation for various ternary cholesteric systems doped with terpenoids, suggesting that these stimuli-responsive chiral dopants are nominally untwisting. Data from fluorescence probe technique indicate that cholesteryl esters and terpenoids as essential components of those LC systems jointly disrupt the tight structure of phospholipid bilayer packing enabling the facilitated penetration of drugs. The potential of LC formulations was explored for several model drugs with diverse physicochemical properties by in vitro and ex vivo penetration tests using artificial membranes and full human skin. Our findings confirm the potential of LC systems for various applications in skin drug delivery.
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Affiliation(s)
- Mariia Nesterkina
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Campus Building E 8.1, 66123 Saarbrücken, Germany.
| | - Olga Vashchenko
- Institute for Scintillation Materials of National Academy of Sciences of Ukraine, Nauky Ave. 60, 61072 Kharkiv, Ukraine
| | - Pavlo Vashchenko
- Institute for Scintillation Materials of National Academy of Sciences of Ukraine, Nauky Ave. 60, 61072 Kharkiv, Ukraine
| | - Longin Lisetski
- Institute for Scintillation Materials of National Academy of Sciences of Ukraine, Nauky Ave. 60, 61072 Kharkiv, Ukraine
| | - Iryna Kravchenko
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Campus Building E 8.1, 66123 Saarbrücken, Germany
| | - Anna K H Hirsch
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Campus Building E 8.1, 66123 Saarbrücken, Germany; Department of Pharmacy, Saarland University, Campus Building E8.1, 66123 Saarbrücken, Germany
| | - Claus-Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Campus Building E 8.1, 66123 Saarbrücken, Germany; Department of Pharmacy, Saarland University, Campus Building E8.1, 66123 Saarbrücken, Germany
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O’Boyle NM, Helesbeux JJ, Meegan MJ, Sasse A, O’Shaughnessy E, Qaisar A, Clancy A, McCarthy F, Marchand P. 30th Annual GP2A Medicinal Chemistry Conference. Pharmaceuticals (Basel) 2023; 16:ph16030432. [PMID: 36986531 PMCID: PMC10056312 DOI: 10.3390/ph16030432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/16/2023] [Indexed: 03/14/2023] Open
Abstract
The Group for the Promotion of Pharmaceutical Chemistry in Academia (GP2A) held their 30th annual conference in August 2022 in Trinity College Dublin, Ireland. There were 9 keynote presentations, 10 early career researcher presentations and 41 poster presentations.
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Affiliation(s)
- Niamh M. O’Boyle
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute and Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 PN40 Dublin, Ireland
- Correspondence: ; Tel.: +353-1896-2524
| | | | - Mary J. Meegan
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute and Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Astrid Sasse
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute and Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Elizabeth O’Shaughnessy
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute and Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Alina Qaisar
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute and Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Aoife Clancy
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute and Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Florence McCarthy
- School of Chemistry and ABCRF, University College Cork, T12 K8AF Cork, Ireland
| | - Pascal Marchand
- Cibles et Médicaments des Infections et de l’Immunité, IICiMed, Nantes Université, UR 1155, F-44000 Nantes, France
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Cardona F, Parmeggiani C, Matassini C. Women in Bioorganic Chemistry. Molecules 2022; 27:molecules27134290. [PMID: 35807535 PMCID: PMC9268729 DOI: 10.3390/molecules27134290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 06/30/2022] [Indexed: 02/04/2023] Open
Abstract
We are very happy to present this Special Issue, for which we acted as guest editors, and which includes scientific contributions from laboratories headed by women active in the field of bioorganic chemistry [...]
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Affiliation(s)
- Francesca Cardona
- Dipartimento di Chimica “Ugo Schiff” (DICUS), Università di Firenze, via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy; (C.P.); (C.M.)
- Correspondence:
| | - Camilla Parmeggiani
- Dipartimento di Chimica “Ugo Schiff” (DICUS), Università di Firenze, via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy; (C.P.); (C.M.)
- European Laboratory for Non Linear Spectroscopy (LENS), via Nello Carrara 1, 50019 Sesto Fiorentino, Italy
| | - Camilla Matassini
- Dipartimento di Chimica “Ugo Schiff” (DICUS), Università di Firenze, via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy; (C.P.); (C.M.)
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