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Barreca M, Ingarra AM, Raimondi MV, Spanò V, Piccionello AP, De Franco M, Menilli L, Gandin V, Miolo G, Barraja P, Montalbano A. New tricyclic systems as photosensitizers towards triple negative breast cancer cells. Arch Pharm Res 2022; 45:806-821. [DOI: 10.1007/s12272-022-01414-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/07/2022] [Indexed: 11/19/2022]
Abstract
AbstractNineteen pyrrolo[1,2-h][1,7]naphthyridinones and pyrido[2,3-c]pyrrolo[1,2-a]azepinones were synthesized as new tricyclic systems in which the pyridine ring is annelated to the 6,7-dihydroindolizin-8(5H)-one and 5,6,7,8-tetrahydro-9H-pyrrole[1,2-a]azepine-9-one moieties to obtain potential photosensitizing agents. They were tested for their photoantiproliferative activity on a triple-negative breast cancer cell line, MDA-MB-231, in the dark and under UVA light (2.0 J/cm2). We demonstrated that their toxicity, only when exposed to light, was primarily due to the generation of reactive oxygen species while their photodegradation products were not responsible for their activity. The most active compounds exhibited photocytotoxicity with IC50 values at low micromolar level inducing a decrease in the intracellular content of thiol, thus triggering cancer cell death through apoptosis. All the pyridone derivatives revealed to be pure photosensitizers with preferential photocytotoxic activity towards cancerous over healthy cells. Altogether, the results obtained confirm pyrrolo[1,2-h][1,7]naphthyridinones and pyrido[2,3-c]pyrrolo[1,2-a]azepinones as promising photosensitisers against triple-negative breast cancer.
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Lakatos P, Hegedűs C, Salazar Ayestarán N, Juarranz Á, Kövér KE, Szabó É, Virág L. The PARP inhibitor PJ-34 sensitizes cells to UVA-induced phototoxicity by a PARP independent mechanism. Mutat Res 2016; 790:31-40. [PMID: 27427773 DOI: 10.1016/j.mrfmmm.2016.07.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 05/28/2016] [Accepted: 07/04/2016] [Indexed: 12/24/2022]
Abstract
A combination of a photosensitizer with light of matching wavelength is a common treatment modality in various diseases including psoriasis, atopic dermatitis and tumors. DNA damage and production of reactive oxygen intermediates may impact pathological cellular functions and viability. Here we set out to investigate the role of the nuclear DNA nick sensor enzyme poly(ADP-ribose) polymerase 1 in photochemical treatment (PCT)-induced tumor cell killing. We found that silencing PARP-1 or inhibition of its enzymatic activity with Veliparib had no significant effect on the viability of A431 cells exposed to 8-methoxypsoralen (8-MOP) and UVA (2.5J/cm(2)) indicating that PARP-1 is not likely to be a key player in either cell survival or cell death of PCT-exposed cells. Interestingly, however, another commonly used PARP inhibitor PJ-34 proved to be a photosensitizer with potency equal to 8-MOP. Irradiation of PJ-34 with UVA caused changes both in the UV absorption and in the 1H NMR spectra of the compound with the latter suggesting UVA-induced formation of tautomeric forms of the compound. Characterization of the photosensitizing effect revealed that PJ-34+UVA triggers overproduction of reactive oxygen species, induces DNA damage, activation of caspase 3 and caspase 8 and internucleosomal DNA fragmentation. Cell death in this model could not be prevented by antioxidants (ascorbic acid, trolox, glutathione, gallotannin or cell permeable superoxide dismutase or catalase) but could be suppressed by inhibitors of caspase-3 and -8. In conclusion, PJ-34 is a photosensitizer and PJ-34+UVA causes DNA damage and caspase-mediated cell death independently of PARP-1 inhibition.
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Affiliation(s)
- Petra Lakatos
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Csaba Hegedűs
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Nerea Salazar Ayestarán
- Department of Biology, Faculty of Sciences, Universidad Autónoma of Madrid, 28049-Madrid, Spain
| | - Ángeles Juarranz
- Department of Biology, Faculty of Sciences, Universidad Autónoma of Madrid, 28049-Madrid, Spain
| | - Katalin E Kövér
- Department of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Debrecen, Debrecen, Hungary
| | - Éva Szabó
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Virág
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; MTA-DE Cell Biology and Signaling Research Group, Debrecen, Hungary.
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Anderson KL, Huang KE, Huang WW, Feldman SR. Training for prescribing in-office and home phototherapy. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2015; 31:325-32. [PMID: 26285141 DOI: 10.1111/phpp.12195] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/09/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND/PURPOSE One reason phototherapy use is lacking in the United States may be inadequate phototherapy education during dermatology training. The purpose of this study was to estimate the level of dermatology resident training with prescribing phototherapy and to see whether inadequate education may be contributing to the underuse of phototherapy in the United States. METHODS A questionnaire was developed to assess resident education and comfort with prescribing phototherapy from the resident perspective. Botulinum toxin and radiation therapy training were used as positive and negative controls, respectively. Responses were tabulated and comparisons made using Fisher's exact test and Cochran-Armitage trend test. RESULTS A total of 88 residents responded. 42% and 81% of respondents reported not receiving didactic education on prescribing in-office and home phototherapy, respectively, compared to 13% for botulinum toxin and 91% for radiation therapy. 29% and 76% reported not being comfortable prescribing in-office and home phototherapy, respectively, compared to 36% for botulinum toxin and 91% for radiation therapy. Phototherapy education satisfaction was positively correlated with comfort of prescribing, and comfort prescribing was positively correlated with actual prescribing of phototherapy. CONCLUSIONS Training for prescribing phototherapy is lacking. Augmenting phototherapy training may help make home phototherapy more accessible for patients.
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Affiliation(s)
- Kathryn L Anderson
- Department of Dermatology, Center for Dermatology Research, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Karen E Huang
- Department of Dermatology, Center for Dermatology Research, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - William W Huang
- Department of Dermatology, Center for Dermatology Research, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Steven R Feldman
- Department of Dermatology, Center for Dermatology Research, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Pathology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
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Miolo G, Salvador A, Mazzoli A, Spalletti A, Marzaro G, Chilin A. Photochemical and photobiological studies on furoquinazolines as new psoralen analogs. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 138:43-54. [DOI: 10.1016/j.jphotobiol.2014.05.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 04/29/2014] [Accepted: 05/05/2014] [Indexed: 10/25/2022]
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Casara C, Eidt L, Cunha V. Prevalence study of dermatoses referred to the phototherapy unit at the Dermatology Service of the Clinics Hospital of Porto Alegre, RS, Brazil. An Bras Dermatol 2014; 88:211-5. [PMID: 23739698 PMCID: PMC3750882 DOI: 10.1590/s0365-05962013000200004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Accepted: 06/17/2012] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Phototherapy consists of exposure to ultraviolet radiation for therapeutic reasons. Radiation is already used in dermatological practice, and many studies have already proved the beneficial effect of UV light treatment for chronic inflammatory or lymphoproliferative skin diseases. The Dermatology Service of the Clinics Hospital of Porto Alegre (Hospital de Clínicas de Porto Alegre) has been using phototherapy for a long time, and no official data have been described so far. OBJECTIVES To study the prevalence of dermatoses referred to the phototherapy unit at the Clinics Hospital of Porto Alegre and describe the total number of patients who have already been referred to this sector and their phototype. METHODS This is a descriptive cross-sectional study. Data were collected through a review of the phototherapy patients' records (secondary data), which are available on a database of the Dermatology Service of the Clinics Hospital of Porto Alegre, from August 1997 to July 2011. RESULTS A total of 653 records were analyzed. Phototype 3 was the most prevalent (n=313). Distribution of the prevalence of dermatoses referred to the phototherapy unit was as follows: vitiligo (279), psoriasis (255), cutaneous T-cell lymphoma/mycosis fungoides (29), graftversus-host disease (15), scleroderma (11), atopic dermatitis (10), alopecia areata (6), parapsoriasis (5), eczema (4), granuloma annulare (4), and others (35). As vitiligo and psoriasis were the two most prevalent dermatoses, they were analyzed separately, with no statistical difference in prevalence between them (P=0,177). CONCLUSIONS Our findings are in accordance with the literature, showing that although phototherapy is still mostly indicated to treat psoriasis, it has been used to treat other dermatoses, since the results are promising.
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Affiliation(s)
- Carolina Casara
- Clinics Hospital of Porto Alegre, Federal University of Rio Grande do Sul, Rio Grande do Sul, RS, Brazil.
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De Alencar TAM, Wilmart-Gonçalves TC, Vidal LS, Fortunato RS, Leitão AC, Lage C. Bipyridine (2,2'-dipyridyl) potentiates Escherichia coli lethality induced by nitrogen mustard mechlorethamine. Mutat Res 2014; 765:40-7. [PMID: 24632511 DOI: 10.1016/j.mrfmmm.2014.02.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 02/19/2014] [Accepted: 02/28/2014] [Indexed: 12/21/2022]
Abstract
Alkylating agents are used in anti-tumor chemotherapy because they bind covalently to DNA and generate adducts that may lead to cell death. Bifunctional (HN2) and monofunctional (HN1) nitrogen are two such agents, and HN2 was the first drug successfully employed in anti-leukemia chemotherapy. Currently, HN2 is used either alone or combined with other drugs to treat Hodgkin's disease. It is well known that several crosslinking agents require metabolic activation via reactive oxygen species (ROS) to exert their lethal effects. The objective of this work was therefore to determine whether the abovementioned mustards would also require metabolic activation to exert lethal action against Escherichia coli. For this purpose, we measured survival following exposure to HN2 in E. coli strains that were deficient in nucleotide excision repair (uvrA NER mutant), base excision repair (xthA nfo nth fpg BER mutant) or superoxide dismutase (sodAB mutant) activity. We also performed the same experiments in cells pretreated with an iron chelator (2,2'-dipyridyl, DIP). The NER and BER mutants were only sensitive to HN2 treatment (survival rates similar to those of the wild-type were achieved with 5-fold lower HN2 doses). However, wild-type and sodAB strains were not sensitive to treatment with HN2. In all tested strains, survival dropped by 2.5-fold following pretreatment with DIP compared to treatment with HN2 alone. Furthermore, DIP treatment increased ROS generation in both wild type and sodAB-deficient strains. Based on these data and on the survival of the SOD-deficient strain, we suggest that the increased production of ROS caused by Fe(2+) chelation may potentiate the lethal effects of HN2 but not HN1. This potentiation may arise as a consequence of enhancement in the number of or modification of the type of lesions formed. No sensitization was observed for the non-crosslinkable HN2 analog, HN1.
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Affiliation(s)
| | | | - L S Vidal
- Laboratório de Radiobiologia Molecular, Brazil
| | | | - A C Leitão
- Laboratório de Radiobiologia Molecular, Brazil
| | - C Lage
- Laboratório de Radiações em Biologia, Brazil.
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Optical radiation in modern medicine. Postepy Dermatol Alergol 2013; 30:246-51. [PMID: 24278082 PMCID: PMC3834711 DOI: 10.5114/pdia.2013.37035] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 03/23/2013] [Accepted: 04/21/2013] [Indexed: 11/17/2022] Open
Abstract
Optical radiation extends between microwaves and X-rays of the electromagnetic radiation and includes ultraviolet (UV), visible light (VL) and infrared (IR) components. The dose of radiation that reaches the skin is influenced by the ozone layer, position of the Sun, latitude, altitude, cloud cover and ground reflections. The photobiological effects of UV, VL and IR bands depend on their wavelength, frequency and mechanism of action. They are modified by the thickness, structure, vasculature and pigmentation of skin's stratum corneum, epidermis and dermis. Following absorption, IR affects the body mainly through transfer of thermal energy to tissues. Visible light and skin interact either thermally or photochemically, whereas UV acts mainly photochemically. Optical radiation in the form of sunlight therapy had been used already in ancient times. Nowadays IR, VL and UV are widely applied in the therapy of allergic, dermatological, cardiovascular, respiratory, rheumatic, neonatal, pediatric and psychiatric disorders.
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Dye Sensitizers for Photodynamic Therapy. MATERIALS 2013; 6:817-840. [PMID: 28809342 PMCID: PMC5512801 DOI: 10.3390/ma6030817] [Citation(s) in RCA: 539] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 02/20/2013] [Accepted: 02/22/2013] [Indexed: 01/18/2023]
Abstract
Photofrin® was first approved in the 1990s as a sensitizer for use in treating cancer via photodynamic therapy (PDT). Since then a wide variety of dye sensitizers have been developed and a few have been approved for PDT treatment of skin and organ cancers and skin diseases such as acne vulgaris. Porphyrinoid derivatives and precursors have been the most successful in producing requisite singlet oxygen, with Photofrin® still remaining the most efficient sensitizer (quantum yield = 0.89) and having broad food and drug administration (FDA) approval for treatment of multiple cancer types. Other porphyrinoid compounds that have received approval from US FDA and regulatory authorities in other countries include benzoporphyrin derivative monoacid ring A (BPD-MA), meta-tetra(hydroxyphenyl)chlorin (m-THPC), N-aspartyl chlorin e6 (NPe6), and precursors to endogenous protoporphyrin IX (PpIX): 1,5-aminolevulinic acid (ALA), methyl aminolevulinate (MAL), hexaminolevulinate (HAL). Although no non-porphyrin sensitizer has been approved for PDT applications, a small number of anthraquinone, phenothiazine, xanthene, cyanine, and curcuminoid sensitizers are under consideration and some are being evaluated in clinical trials. This review focuses on the nature of PDT, dye sensitizers that have been approved for use in PDT, and compounds that have entered or completed clinical trials as PDT sensitizers.
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Hwu JR, Yang JR, Tsay SC, Hsu MH, Chen YC, Chou SSP. Photo-induced DNA cleavage by (heterocyclo)carbonyl oxime esters of anthraquinone. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.03.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Anna B, Blazej Z, Jacqueline G, Andrew CJ, Jeffrey R, Andrzej S. Mechanism of UV-related carcinogenesis and its contribution to nevi/melanoma. EXPERT REVIEW OF DERMATOLOGY 2007; 2:451-469. [PMID: 18846265 PMCID: PMC2564815 DOI: 10.1586/17469872.2.4.451] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Melanoma consists 4-5 % of all skin cancers, but it contributes to 71-80 % of skin cancers deaths. UV light affects cell and tissue homeostasis due to its damaging effects on DNA integrity and modification of expression of a plethora of genes. DNA repair systems protect cells from UV-induced lesions. Several animal models of melanoma have been developed (Xiphophorus, Opossum Monodelphis domestica, mouse models and human skin engrafts into other animals). This review discusses possible links between UV and genes significantly related to melanoma but does not discuss melanoma genetics. These include oncogenes, tumor suppressor genes, genes related to melanocyte-keratinocyte and melanocyte-matrix interaction, growth factors and their receptors, CRH, ACTH, α-MSH, glucocorticoids, ID1, NF-kappaB and vitamin D3.
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Affiliation(s)
- Brozyna Anna
- Department of Medical Biology, Nicolaus Copernicus University, Torun, Poland, Tel: (4856)611-4776, Fax: (4856)611-4772, E-mail:
| | - Zbytek Blazej
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, 930 Madison Ave, Memphis, TN 38163, Tel: (901)448-6300, Fax: (901)448-6979, E-mail:
| | - Granese Jacqueline
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, 930 Madison Ave, Memphis, TN 38163, Tel: (901)448-6300, Fax: (901)448-6979, E-mail:
| | - Carlson J. Andrew
- Department of Pathology & Laboratory Medicine, Albany Medical Center, 47 New Scotland Avenue, Albany, NY, Tel: (518)262-8099, Fax: (518)262-8092, E-mail:
| | - Ross Jeffrey
- Department of Pathology & Laboratory Medicine, Albany Medical Center, Albany, NY, 47 New Scotland Avenue, Albany, NY, Tel: (518)262-5461 fax: (518)262-8092, E-mail:
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Affiliation(s)
- Andreas Katsambas
- Department of Dermatology, University of Athens, A Sygros Hospital, Athens, Greece.
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