Photochemistry and Photobiology最新文献

筛选
英文 中文
Synergistic effects of covalently coupled eosin-Y with Ben-graphitic carbon nitride framework for improved photocatalytic activity in solar light-driven Biginelli product generation and NADH regeneration. 共价偶联曙红-Y 与本石墨氮化碳框架的协同效应可提高太阳光驱动的比吉内利产物生成和 NADH 再生的光催化活性。
IF 4.6 4区 生物学
Photochemistry and Photobiology Pub Date : 2024-11-01 Epub Date: 2024-06-28 DOI: 10.1111/php.13986
Anurag Prajapati, Rajesh K Yadav, Rehana Shahin, Ravindra Shukla, Shaifali Mishra, Satyam Singh, Suman Yadav, Jin-OoK Baeg, Rajat Singhal, Navneet K Gupta, Mohd Sajid Ali, Krishna Kumar Yadav
{"title":"Synergistic effects of covalently coupled eosin-Y with B<sub>en</sub>-graphitic carbon nitride framework for improved photocatalytic activity in solar light-driven Biginelli product generation and NADH regeneration.","authors":"Anurag Prajapati, Rajesh K Yadav, Rehana Shahin, Ravindra Shukla, Shaifali Mishra, Satyam Singh, Suman Yadav, Jin-OoK Baeg, Rajat Singhal, Navneet K Gupta, Mohd Sajid Ali, Krishna Kumar Yadav","doi":"10.1111/php.13986","DOIUrl":"10.1111/php.13986","url":null,"abstract":"<p><p>Elevated global pollution level is the prime reason that contributes to the onset of various harmful health diseases. The products of Biginelli reaction are enormously used in the pharmaceutical industry as they have antiviral, antibacterial, and calcium channel modulation abilities. This work reports a novel eosin Y sensitized boron graphitic carbon nitride (EY-B<sub>en-</sub>g-C<sub>3</sub>N<sub>4</sub>) as a photocatalyst that efficiently produced 3,4-dihydropyrimidine-2-(1H)-one by the Biginelli reaction of benzaldehyde, urea, and methyl acetoacetate. The photocatalyst EY-B<sub>en-</sub>g-C<sub>3</sub>N<sub>4</sub> showed a successful generation of 3,4-dihydropyrimidine-2-(1H)-one (Biginelli product) in good yield via photocatalysis which is an eco-friendly method and has facile operational process. In addition to the production of Biginelli products, the photocatalyst also showed a remarkable NADH regeneration of 81.18%. The incorporation of g-C<sub>3</sub>N<sub>4</sub> with boron helps increase the surface area and the incorporation of eosin Y which is an inexpensive and non-toxic dye, and in B<sub>en</sub>-g-C<sub>3</sub>N<sub>4</sub>, enhanced the light-harvesting capacity of the photocatalyst. The production of 3,4-dihydropyrimidine-2-(1H)-one and NADH by the EY-B<sub>en</sub>-g-C<sub>3</sub>N<sub>4</sub> photocatalyst is attributed to the requisite band gap, high molar absorbance, low rate of charge recombination, and increased capacity of the photocatalyst to harvest solar light energy.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"1773-1786"},"PeriodicalIF":4.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141470159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A single photodynamic priming protocol augments delivery of ⍺-PD-L1 mAbs and induces immunogenic cell death in head and neck tumors. 在头颈部肿瘤中,单一的光动力启动方案增加了PD-L1单克隆抗体的递送并诱导免疫原性细胞死亡。
IF 4.6 4区 生物学
Photochemistry and Photobiology Pub Date : 2024-11-01 Epub Date: 2023-10-11 DOI: 10.1111/php.13865
Chanda Bhandari, Azophi Moffat, John Fakhry, Ashritha Malkoochi, Austin Nguyen, Brian Trinh, Kenneth Hoyt, Michael D Story, Tayyaba Hasan, Girgis Obaid
{"title":"A single photodynamic priming protocol augments delivery of ⍺-PD-L1 mAbs and induces immunogenic cell death in head and neck tumors.","authors":"Chanda Bhandari, Azophi Moffat, John Fakhry, Ashritha Malkoochi, Austin Nguyen, Brian Trinh, Kenneth Hoyt, Michael D Story, Tayyaba Hasan, Girgis Obaid","doi":"10.1111/php.13865","DOIUrl":"10.1111/php.13865","url":null,"abstract":"<p><p>Photodynamic priming (PDP) leverages the photobiological effects of subtherapeutic photodynamic therapy (PDT) regimens to modulate the tumor vasculature and stroma. PDP also sensitizes tumors to secondary therapies, such as immunotherapy by inducing a cascade of molecular events, including immunogenic cell death (ICD). We and others have shown that PDP improves the delivery of antibodies, among other theranostic agents. However, it is not known whether a single PDP protocol is capable of both inducing ICD in vivo and augmenting the delivery of immune checkpoint inhibitors. In this rapid communication, we show for the first time that a single PDP protocol using liposomal benzoporphyrin derivative (Lipo-BPD, 0.25 mg/kg) with 690 nm light (75 J/cm<sup>2</sup>, 100 mW/cm<sup>2</sup>) simultaneously doubles the delivery of ⍺-PD-L1 antibodies in murine AT-84 head and neck tumors and induces ICD in vivo. ICD was observed as a 3-11 fold increase in tumor cell exposure of damage-associated molecular patterns (Calreticulin, HMGB1, and HSP70). These findings suggest that this single, highly translatable PDP protocol using clinically relevant Lipo-BPD holds potential for improving immunotherapy outcomes in head and neck cancer. It can do so by simultaneously overcoming physical barriers to the delivery of immune checkpoint inhibitors, and biochemical barriers that contribute to immunosuppression.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"1647-1658"},"PeriodicalIF":4.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11006828/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41208987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of 980 nm photobiomodulation delivered by a handpiece with Gaussian vs. Flat-Top profiles on proliferation and differentiation of buccal fat pad stem cells. 高斯曲线与平顶曲线手机发出的 980 纳米光生物调制对颊脂垫干细胞增殖和分化的影响。
IF 4.6 4区 生物学
Photochemistry and Photobiology Pub Date : 2024-11-01 Epub Date: 2024-03-10 DOI: 10.1111/php.13929
Ali Homayouni, Maryam Rezaie Rad, Hamidreza Barikani, Nasim Chiniforush, Solmaz Akbari
{"title":"Effect of 980 nm photobiomodulation delivered by a handpiece with Gaussian vs. Flat-Top profiles on proliferation and differentiation of buccal fat pad stem cells.","authors":"Ali Homayouni, Maryam Rezaie Rad, Hamidreza Barikani, Nasim Chiniforush, Solmaz Akbari","doi":"10.1111/php.13929","DOIUrl":"10.1111/php.13929","url":null,"abstract":"<p><p>The aim of this study was to compare the effectiveness of the Gaussian and Flat-Top profiles in proliferation and differentiation of mesenchymal stem cell of buccal fat pad. Based on the timing schedule and type of laser handpieces, the cells were assigned to a control group with no radiation, and two irradiation test groups (980 nm) with Flat-Top (F) (power of 1.1 W, beam area of 1 cm<sup>2</sup>) and standard Gaussian (G) (power of 0.7 W, beam area of 0.5 cm<sup>2</sup>) handpieces. Each test group was divided into three subgroups, receiving one time (60 J/cm<sup>2</sup>), two times (120 J/cm<sup>2</sup>), and three times (180 J/cm<sup>2</sup>) irradiation. 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) and Annexin V tests were performed. The Alizarin Red staining and polymerase chain reaction tests were done both at the beginning and the end of the first and second weeks. The degree of mineralization and expression of osteogenic markers, RUNX2, OCN, and OPN were evaluated. Based on the MTT and Annexin V test results, both test groups outperformed the control group in degrees of cell proliferation during the first day of laser irradiation (p < 0.05). After one and two times irradiation, the expression of osteogenic markers in the test groups was significantly higher than the control group. PBM with Flat-Top and Gaussian handpieces can enhance ossification and cell differentiation regardless of the type of handpieces.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"1902-1911"},"PeriodicalIF":4.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140094514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Shades of phototoxicity in fluorescent imaging agents (that are not supposed to be phototoxic). 荧光成像剂(不应该具有光毒性)的光毒性阴影。
IF 2.6 4区 生物学
Photochemistry and Photobiology Pub Date : 2024-11-01 Epub Date: 2023-09-12 DOI: 10.1111/php.13856
Serah Essang, Alexander Greer
{"title":"Shades of phototoxicity in fluorescent imaging agents (that are not supposed to be phototoxic).","authors":"Serah Essang, Alexander Greer","doi":"10.1111/php.13856","DOIUrl":"10.1111/php.13856","url":null,"abstract":"<p><p>This article is a highlight of the paper by Huang et al. in this issue of Photochemistry and Photobiology. It describes shades of phototoxicity in fluorescent imaging agents that are not intended to be phototoxic. Phototoxicity was assessed using a modified neutral red uptake (NRU) in vitro assay with mean photo-effects (MPE) for the fluorescent agents IRdye800, indocyanine green (ICG), proflavine, and methylene blue (MB), with comparisons to known phototoxic agents benzoporphyrin derivative (BPD) and rose bengal (RB). The experimental conditions were aimed to mimic clinical settings, using not only visible light, but also near-infrared light for insight to photosafety and deep tissue damage. Molecular mechanisms underlying the phototoxicities were not sought, but IRdye800 and ICG were mainly deemed to be safe, whereas proflavine and MB would require precautions since phototoxicity can overshadow their utility as fluorescent imaging agents.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"1694-1697"},"PeriodicalIF":2.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10580454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Test method for evaluating the photocytotoxic potential of fluorescence imaging products. 评估荧光成像产品光细胞毒性潜力的测试方法。
IF 4.6 4区 生物学
Photochemistry and Photobiology Pub Date : 2024-11-01 Epub Date: 2023-07-26 DOI: 10.1111/php.13836
Shruti Vig, Brandon Gaitan, Lucas Frankle, Yu Chen, Rosalie Elespuru, T Joshua Pfefer, Huang-Chiao Huang
{"title":"Test method for evaluating the photocytotoxic potential of fluorescence imaging products.","authors":"Shruti Vig, Brandon Gaitan, Lucas Frankle, Yu Chen, Rosalie Elespuru, T Joshua Pfefer, Huang-Chiao Huang","doi":"10.1111/php.13836","DOIUrl":"10.1111/php.13836","url":null,"abstract":"<p><p>Various fluorescence imaging agents are currently under clinical studies. Despite significant benefits, phototoxicity is a barrier to the clinical translation of fluorophores. Current regulatory guidelines on medication-based phototoxicity focus on skin effects during sun exposure. However, with systemic and local administration of fluorophores and targeted illumination, there is now possibility of photochemical damage to deeper tissues during intraoperative imaging procedures. Hence, independent knowledge regarding phototoxicity is required to facilitate the development of fluorescence imaging products. Previously, we studied a cell-free assay for initial screening of reactive molecular species generation from fluorophores. The current work addresses a safety test method based on cell viability as an adjunct and a comparator with the cell-free assay. Our goal is to modify and implement an approach based on the in vitro 3T3 neutral red uptake assay of the Organization for Economic Co-Operation and Development Test Guideline 432 (OECD TG432) to evaluate the photocytotoxicity of clinically relevant fluorophores. These included indocyanine green (ICG), proflavine, methylene blue (MB), and IRDye800, as well as control photosensitizers, benzoporphyrin derivative (BPD) and rose bengal (RB). We performed measurements at agent concentrations and illumination parameters used for clinic imaging. Our results aligned with prior studies, indicating photocytotoxicity in RB and BPD and an absence of reactivity for ICG and IRDye800. DNA interactive agents, proflavine and MB, exhibited drug/light dose-response curves like photosensitizers. This study provides evidence and insights into practices useful for testing the photochemical safety of fluorescence imaging products.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"1561-1578"},"PeriodicalIF":4.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9931094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preclinical evaluation of singlet oxygen-cleavable prodrugs in combination with protoporphyrin IX-photodynamic therapy in an orthotopic rat model of non-muscle-invasive bladder cancer. 在非肌肉浸润性膀胱癌大鼠模型中结合原卟啉 IX-光动力疗法对可单线态氧清除原药进行临床前评估。
IF 4.6 4区 生物学
Photochemistry and Photobiology Pub Date : 2024-11-01 Epub Date: 2023-07-20 DOI: 10.1111/php.13838
Kazi Md Mahabubur Rahman, Barbara A Foster, Youngjae You
{"title":"Preclinical evaluation of singlet oxygen-cleavable prodrugs in combination with protoporphyrin IX-photodynamic therapy in an orthotopic rat model of non-muscle-invasive bladder cancer.","authors":"Kazi Md Mahabubur Rahman, Barbara A Foster, Youngjae You","doi":"10.1111/php.13838","DOIUrl":"10.1111/php.13838","url":null,"abstract":"<p><p>Photodynamic therapy (PDT) initially employed red light, which caused some patients to experience permanent bladder contractions. PDT using the FDA-approved drug hexaminolevulinate (HAL), which produces protoporphyrin IX (PpIX) in the tumor, showed some promise but has low efficacy in treating non-muscle-invasive bladder cancer (NMIBC). We developed singlet oxygen-activatable prodrugs of two anticancer drugs, paclitaxel and mitomycin C, to enhance the antitumor effect of PpIX-PDT without producing systemic side effects, by promoting only local release of the active chemotherapeutic agent. Orthotopic NMIBC model was used to compare the efficacy of prodrugs only, PpIX-PDT, and prodrugs + PpIX-PDT. 532 nm laser with a total power of 50 mW for 20 min (60 J, single treatment) was used with HAL and prodrugs. Histology and microscopic methods with image analysis were used to evaluate the tumor staging, antitumor efficacy, and local toxicity. Prodrug + PpIX-PDT produced superior antitumor efficacy than PpIX-PDT alone with statistical significance. Both PpIX-PDT alone and combination therapy resulted in mild damage to the bladder epithelium in the normal bladder area with no apparent damage to the muscle layer. Overall, SO-cleavable prodrugs improved the antitumor efficacy of PpIX-PDT without causing severe and permanent damage to the bladder muscle layer.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"1590-1602"},"PeriodicalIF":4.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10195824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of red and green light for treating non-muscle invasive bladder cancer in rats using singlet oxygen-cleavable prodrugs with PPIX-PDT. 比较红光和绿光利用单线态氧可裂解原药和 PPIX-PDT 治疗大鼠非肌浸润性膀胱癌的效果。
IF 4.6 4区 生物学
Photochemistry and Photobiology Pub Date : 2024-11-01 Epub Date: 2024-03-27 DOI: 10.1111/php.13933
Kazi Md Mahabubur Rahman, Soniya Kumbham, Ganesh Bist, Sukyung Woo, Barbara A Foster, Youngjae You
{"title":"Comparison of red and green light for treating non-muscle invasive bladder cancer in rats using singlet oxygen-cleavable prodrugs with PPIX-PDT.","authors":"Kazi Md Mahabubur Rahman, Soniya Kumbham, Ganesh Bist, Sukyung Woo, Barbara A Foster, Youngjae You","doi":"10.1111/php.13933","DOIUrl":"10.1111/php.13933","url":null,"abstract":"<p><p>It has been 30 years since Photofrin-PDT was approved for the treatment of bladder cancer in Canada. However, Photofrin-PDT failed to gain popularity due to bladder complications. The PDT with red light and IV-administered Photofrin could permanently damage the bladder muscle. We have been developing a new combination strategy of PpIX-PDT with singlet oxygen-cleavable prodrugs for NMIBC with minimal side effects, avoiding damage to the bladder muscle layer. PpIX can be excited by either green (532 nm) or red (635 nm) light. Red light could be more efficacious in vivo due to its deeper tissue penetration than green light. Since HAL preferentially produces PpIX in tumors, we hypothesized that illuminating PpIX with red light might spare the muscle layer. PpIX-PDT was used to compare green and red laser efficacy in vitro and in vivo. The IC<sub>50</sub> of in vitro PpIX-PDT was 18 mW/cm<sup>2</sup> with the red laser and 22 mW/cm<sup>2</sup> with the green laser. The in vivo efficacy of the red laser with 50, 75, and 100 mW total dose was similar to the same dose of green laser in reducing tumor volume. Combining PpIX-PDT with prodrugs methyl-linked mitomycin C (Mt-L-MMC) and rhodamine-linked SN-38 (Rh-L-SN-38) significantly improved efficacy (tumor volume comparison). PpIX-PDT or PpIX-PDT + prodrug combination did not cause muscle damage in histological analysis. Overall, a combination of PpIX-PDT and prodrug with 635 nm laser is promising for non-muscle invasive bladder cancer treatment.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"1659-1675"},"PeriodicalIF":4.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11427601/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140294238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the chemistry of sunlight-induced DNA lesions: A perspective on the alkaline chemical-induced reactivities of photo-damaged pyrimidine intra-strand dimers. 阳光诱导的 DNA 损伤化学:光损伤嘧啶链内二聚体的碱性化学诱导反应透视。
IF 2.6 4区 生物学
Photochemistry and Photobiology Pub Date : 2024-11-01 Epub Date: 2024-10-15 DOI: 10.1111/php.14031
Ritu Chaturvedi, Eric C Long
{"title":"On the chemistry of sunlight-induced DNA lesions: A perspective on the alkaline chemical-induced reactivities of photo-damaged pyrimidine intra-strand dimers.","authors":"Ritu Chaturvedi, Eric C Long","doi":"10.1111/php.14031","DOIUrl":"10.1111/php.14031","url":null,"abstract":"<p><p>Photoexcitation of cellular as well as isolated DNAs upon exposure to the UV portion of sunlight or other UV sources can lead to the covalent dimerization of adjacent intra-strand stacked pyrimidine nucleobase rings (i.e., at 5'-Py-p-Py-3' sites). These modifications generate, in mammalian DNA as well as the DNA of all other forms of life, lesions such as cyclobutane pyrimidine dimers (CPDs) and pyrimidine (6-4) pyrimidone photoproducts (6-4PPs); and, in bacterial endospores, spore photoproducts (SPs). Importantly, the lesions formed in higher organisms can lead to disease states including cancer. While the formation, structure, and biological outcomes of pyrimidine dimer lesions have been the focus of much research, less has been known about their fundamental chemical properties until recently. Such an understanding of these lesions may lead to novel means to chemically identify and quantitate their presence in the genome. This review is intended to provide an overview of intra-strand pyrimidine dimer lesions derived from 5'-T-p-T sites with a focus on presenting what is currently known about their individual in vitro alkaline chemical reactivities. Included here are descriptions of investigations of the DNA lesions CPD, 6-4PP, and SP, and, for comparison, the monomeric pyrimidine lesion 5,6-dihydo-2'-deoxyuridine (dHdU). Of interest, the alkaline hydrolyses of these various lesions are all found to be centered on the loss of aromaticity of a lesion Py ring (T) leading to a carbonyl \"hot spot,\" the focal point of initial hydrolytic attack.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"1698-1712"},"PeriodicalIF":2.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142472450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing PDT efficacy in NMIBC: Efflux inhibitor mediated improvement of PpIX levels and efficacy of the combination of PpIX-PDT and SO-cleavable prodrugs. 提高 PDT 在 NMIBC 中的疗效:外排抑制剂介导的 PpIX 水平改善以及 PpIX-PDT 和 SO 可裂解原药组合的疗效。
IF 4.6 4区 生物学
Photochemistry and Photobiology Pub Date : 2024-11-01 Epub Date: 2024-06-12 DOI: 10.1111/php.13982
Soniya Kumbham, Kazi Md Mahabubur Rahman, Caroline Bosmajian, Ganesh Bist, Barbara A Foster, Sukyung Woo, Youngjae You
{"title":"Enhancing PDT efficacy in NMIBC: Efflux inhibitor mediated improvement of PpIX levels and efficacy of the combination of PpIX-PDT and SO-cleavable prodrugs.","authors":"Soniya Kumbham, Kazi Md Mahabubur Rahman, Caroline Bosmajian, Ganesh Bist, Barbara A Foster, Sukyung Woo, Youngjae You","doi":"10.1111/php.13982","DOIUrl":"10.1111/php.13982","url":null,"abstract":"<p><p>Protoporphyrin IX (PpIX)-based photodynamic therapy (PDT) has shown limited efficacy in nonmuscle-invasive bladder cancer (NMIBC). To improve PDT efficacy, we developed singlet oxygen-cleavable prodrugs. These prodrugs, when combined with PpIX-PDT, induce cancer cell death through both PDT and drug release mechanisms. Inhibition of PpIX efflux was reported to be an effective strategy to improve PpIX-PDT in certain cancer cells. Our main goal was to investigate whether adding an efflux inhibitor to the combination of PpIX and prodrugs can improve the PpIX levels in bladder cancer cells and the release of active drugs, thus improving the overall efficacy of the treatment. We treated bladder cancer cell lines with lapatinib and evaluated intracellular PpIX fluorescence, finding significantly increased accumulation. Combining lapatinib with prodrugs led to significantly reduced cell viability compared to prodrugs or PpIX-PDT alone. The effect of lapatinib depended on the expression level of the efflux pump in bladder cancer cells. Interestingly, lapatinib increased paclitaxel (PTX) prodrug uptake by threefold compared to prodrug alone. Adding an efflux inhibitor (e.g., lapatinib) into bladder instillation solutions could be a straightforward and effective strategy for NMIBC treatment, particularly in tumors expressing efflux pumps, with the potential for clinical translation.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"1636-1646"},"PeriodicalIF":4.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11568956/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141311406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Highways and detours in the realm of photodynamic therapy for cancer control. 控制癌症的光动力疗法领域中的 "高速公路 "和 "弯路"。
IF 2.6 4区 生物学
Photochemistry and Photobiology Pub Date : 2024-11-01 Epub Date: 2024-03-15 DOI: 10.1111/php.13938
David Kessel
{"title":"Highways and detours in the realm of photodynamic therapy for cancer control.","authors":"David Kessel","doi":"10.1111/php.13938","DOIUrl":"10.1111/php.13938","url":null,"abstract":"<p><p>Critical elements of photodynamic therapy are a photosensitizing agent, light at a wavelength corresponding to an absorbance band of the agent, and sufficient oxygenation to create a cytotoxic concentration of reactive oxygen species. Other factors may promote efficacy, but these are critical.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"1740-1744"},"PeriodicalIF":2.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140132317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信