Benzamide porphyrins with directly conjugated and distal pyridyl or pyridinium groups substituted to the porphyrin macrocycles : Study of the photosensitising abilities as inducers of apoptosis in cancer cells under photodynamic conditions
Copyright © 2017 Elsevier B.V. All rights reserved..
Amphiphilic porphyrin photosensitisers (PSs) having combinations of directly substituted pyridyl group(s) at the meso-position of a porphyrin macrocycle, and/or indirectly linked pyridyl groups as benzamide derivatives are reported. The compounds 5,10,15,20-tetrakis-(4-pyridylbenzamide)porphyrin (A.2), 5,10,15,20-tetra[N-(pyridine-4-yl)benzamidium] porphyrin (A.3), 5-mono-(4-pyridyl)-10,15,20-tris-(4-pyridylbenzamide)porphyrin (B.2) and 5-mono-(4-methylpyridinium)-10,15,20-tris-(4-pyridiniumbenzamide)porphyrin (B.3) were synthesised. The compounds were successfully characterised through UV-Vis, Emission, 1H NMR, and ESI-HRMS techniques. To evaluate the effect of this combination of directly conjugated and non-conjugated pyridyl/cationic pyridinium groups on the porphyrin macrocycle, the efficacy of the synthesised compounds was compared to a known standard 5,10,15,20-tetrakis(1-methylpyridinium-4-yl)porphyrin (TMPyP). These compounds show better efficacy (IC50's ranging between 0.66±0.04μM to 3.71±1.01μM) against A549 (human epithelial adenocarcinoma lung cancer) cell line under in vitro photodynamic conditions in comparison to MDA-MB-231 (breast cancer) (IC50's ranging between 3.7±0.087μM to 12.1±0.12μM) and Pa-1 (ovarian cancer) (IC50's ranging between 17.9±0.01μM to 42.45±0.02μM) cell lines. It was found that B.3, having a pyridinium group attached to the meso-position of the macrocycle along with three distal cationic pyridinium groups, independent of the porphyrinic electron delocalisation cycle, showed better photocytotoxic efficacy (IC50=0.66±0.04μM, A549 lung cancer cell line) and higher potential to promote apoptosis and hence better efficacy as PS towards cancer photodynamic therapy (PDT). The PDT activity of B.3 was further verified and established by various biological assays, viz. Annexin V assay, cell cycle assay, and reactive oxygen species (ROS) activity assay.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:178 |
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| Enthalten in: |
Journal of photochemistry and photobiology. B, Biology - 178(2018) vom: 01. Jan., Seite 228-236 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sengupta, Devashish [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 12.02.2018 Date Revised 12.02.2018 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.jphotobiol.2017.11.014 |
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| PPN (Katalog-ID): |
NLM278225543 |
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| 245 | 1 | 0 | |a Benzamide porphyrins with directly conjugated and distal pyridyl or pyridinium groups substituted to the porphyrin macrocycles |b Study of the photosensitising abilities as inducers of apoptosis in cancer cells under photodynamic conditions |
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| 500 | |a Date Revised 12.02.2018 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2017 Elsevier B.V. All rights reserved. | ||
| 520 | |a Amphiphilic porphyrin photosensitisers (PSs) having combinations of directly substituted pyridyl group(s) at the meso-position of a porphyrin macrocycle, and/or indirectly linked pyridyl groups as benzamide derivatives are reported. The compounds 5,10,15,20-tetrakis-(4-pyridylbenzamide)porphyrin (A.2), 5,10,15,20-tetra[N-(pyridine-4-yl)benzamidium] porphyrin (A.3), 5-mono-(4-pyridyl)-10,15,20-tris-(4-pyridylbenzamide)porphyrin (B.2) and 5-mono-(4-methylpyridinium)-10,15,20-tris-(4-pyridiniumbenzamide)porphyrin (B.3) were synthesised. The compounds were successfully characterised through UV-Vis, Emission, 1H NMR, and ESI-HRMS techniques. To evaluate the effect of this combination of directly conjugated and non-conjugated pyridyl/cationic pyridinium groups on the porphyrin macrocycle, the efficacy of the synthesised compounds was compared to a known standard 5,10,15,20-tetrakis(1-methylpyridinium-4-yl)porphyrin (TMPyP). These compounds show better efficacy (IC50's ranging between 0.66±0.04μM to 3.71±1.01μM) against A549 (human epithelial adenocarcinoma lung cancer) cell line under in vitro photodynamic conditions in comparison to MDA-MB-231 (breast cancer) (IC50's ranging between 3.7±0.087μM to 12.1±0.12μM) and Pa-1 (ovarian cancer) (IC50's ranging between 17.9±0.01μM to 42.45±0.02μM) cell lines. It was found that B.3, having a pyridinium group attached to the meso-position of the macrocycle along with three distal cationic pyridinium groups, independent of the porphyrinic electron delocalisation cycle, showed better photocytotoxic efficacy (IC50=0.66±0.04μM, A549 lung cancer cell line) and higher potential to promote apoptosis and hence better efficacy as PS towards cancer photodynamic therapy (PDT). The PDT activity of B.3 was further verified and established by various biological assays, viz. Annexin V assay, cell cycle assay, and reactive oxygen species (ROS) activity assay | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Amphiphilic | |
| 650 | 4 | |a Annexin V assay | |
| 650 | 4 | |a Cancer photodynamic therapy | |
| 650 | 4 | |a Cationic porphyrins | |
| 650 | 4 | |a Cell cycle assay | |
| 650 | 4 | |a Photosensitisers | |
| 650 | 4 | |a Reactive oxygen species (ROS) activity assay | |
| 650 | 7 | |a Benzamides |2 NLM | |
| 650 | 7 | |a Photosensitizing Agents |2 NLM | |
| 650 | 7 | |a Porphyrins |2 NLM | |
| 650 | 7 | |a Reactive Oxygen Species |2 NLM | |
| 650 | 7 | |a tetra(4-N-methylpyridyl)porphine |2 NLM | |
| 650 | 7 | |a 38673-65-3 |2 NLM | |
| 650 | 7 | |a benzamide |2 NLM | |
| 650 | 7 | |a 6X80438640 |2 NLM | |
| 700 | 1 | |a Mazumdar, Zeaul Hoque |e verfasserin |4 aut | |
| 700 | 1 | |a Mukherjee, Avinaba |e verfasserin |4 aut | |
| 700 | 1 | |a Sharma, Debdulal |e verfasserin |4 aut | |
| 700 | 1 | |a Halder, Amit Kumar |e verfasserin |4 aut | |
| 700 | 1 | |a Basu, Samita |e verfasserin |4 aut | |
| 700 | 1 | |a Jha, Tarun |e verfasserin |4 aut | |
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