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Oncologic Photodynamic Therapy: Basic Principles, Current Clinical Status and Future Directions
Open accessAbstract
Photodynamic therapy (PDT) is a clinically approved cancer therapy, based on a photochemical reaction between a light activatable molecule or photosensitizer, light, and molecular oxygen. When these three harmless components are present together, reactive oxygen species are formed. These can directly damage cells and/or vasculature, and induce inflammatory and immune responses. PDT is a two-stage procedure, which starts with photosensitizer administration followed by a locally directed light exposure, with the aim of confined tumor destruction. Since its regulatory approval, over 30 years ago, PDT has been the subject of numerous studies and has proven to be an effective form of cancer therapy. This review provides an overview of the clinical trials conducted over the last 10 years, illustrating how PDT is applied in the clinic today. Furthermore, examples from ongoing clinical trials and the most recent preclinical studies are presented, to show the directions, in which PDT is headed, in the near and distant future. Despite the clinical success reported, PDT is still currently underutilized in the clinic. We also discuss the factors that hamper the exploration of this effective therapy and what should be changed to render it a more effective and more widely available option for patients.
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Jemal, A., Bray, F., Center, M. M., Ferlay, J., Ward, E., & Forman, D. (2011) · CA: A Cancer Journal for Clinicians · doi:10.3322/caac.20107 · Cited by 54,679
Hanahan, D., & Weinberg, R. A. (2000) · Cell · doi:10.1016/s0092-8674(00)81683-9 · Cited by 29,219
Cancer incidence and mortality worldwide: Sources, methods and major patterns in GLOBOCAN 2012
Ferlay, J., Soerjomataram, I., Dikshit, R., Eser, S., Mathers, C., Rebelo, M., Parkin, D. M., Forman, D., & Bray, F. (2015) · International Journal of Cancer · doi:10.1002/ijc.29210 · Cited by 28,766
Global cancer statistics, 2012
Torre, L. A., Bray, F., Siegel, R. L., Ferlay, J., Lortet‐Tieulent, J., & Jemal, A. (2015) · CA: A Cancer Journal for Clinicians · doi:10.3322/caac.21262 · Cited by 26,850
Radiotherapy Plus Concomitant and Adjuvant Temozolomide for Glioblastoma
Stupp, R., Mason, W. P., van den Bent, M. J., Weller, M., Fisher, B., Taphoorn, M. J. B., Belanger, K., Brandes, A. A., Marosi, C., Bogdahn, U., et al. (2005) · New England Journal of Medicine · doi:10.1056/nejmoa043330 · Cited by 21,807
Photodynamic therapy for cancer
Dolmans, D. E. J. G. J., Fukumura, D., & Jain, R. K. (2003) · Nature Reviews Cancer · doi:10.1038/nrc1071 · Cited by 6,758
Increased Survival in Pancreatic Cancer with nab-Paclitaxel plus Gemcitabine
Von Hoff, D. D., Ervin, T., Arena, F. P., Chiorean, E. G., Infante, J., Moore, M., Seay, T., Tjulandin, S. A., Ma, W. W., Saleh, M. N., et al. (2013) · New England Journal of Medicine · doi:10.1056/nejmoa1304369 · Cited by 6,712
Photodynamic therapy of cancer: An update
Agostinis, P., Berg, K., Cengel, K. A., Foster, T. H., Girotti, A. W., Gollnick, S. O., Hahn, S. M., Hamblin, M. R., Juzeniene, A., Kessel, D., et al. (2011) · CA: A Cancer Journal for Clinicians · doi:10.3322/caac.20114 · Cited by 5,145
Integrins in cancer: biological implications and therapeutic opportunities
Desgrosellier, J. S., & Cheresh, D. A. (2010) · Nature Reviews Cancer · doi:10.1038/nrc2748 · Cited by 3,736
Levine, B., & Klionsky, D. J. (2004) · Developmental Cell · doi:10.1016/s1534-5807(04)00099-1 · Cited by 3,678
Research works printed but not linked: 73
- Raab, 1900, Uber die wirkung fluoreszierender stoffe auf infusorien, Zeitung Biol., 39, 524
- 1913, Untersuchungen uber die biologische photodynamische wirkung des hematoporphyrins und anderer derivative des blut und galenafarbstoffs, Dtsch. Arch. Klin., 112, 476
- Lipson, 1961, The use of a derivative of hematoporhyrin in tumor detection, J. Natl. Cancer Inst., 26, 1
- Luo, 1997, Initiation of apoptosis versus necrosis by photodynamic therapy with chloroaluminum phthalocyanine, Photochem. Photobiol., 66, 479, 10.1111/j.1751-1097.1997.tb03176.x · doi:10.1111/j.1751-1097.1997.tb03176.x
- Nagata, 2003, Necrotic and apoptotic cell death of human malignant melanoma cells following photodynamic therapy using an amphiphilic photosensitizer, ATX-S10(Na), Lasers Surg. Med., 33, 64, 10.1002/lsm.10190 · doi:10.1002/lsm.10190
- Heldman, 1988, Release of clotting factors from photosensitized endothelial cells: A possible trigger for blood vessel occlusion by photodynamic therapy, FEBS Lett., 236, 105, 10.1016/0014-5793(88)80294-1 · doi:10.1016/0014-5793(88)80294-1
- Foster, 1991, Photosensitized release of von willebrand factor from cultured human endothelial cells, Cancer Res., 51, 3261
- Kurohane, 2001, Photodynamic therapy targeted to tumor-induced angiogenic vessels, Cancer Lett., 167, 49, 10.1016/S0304-3835(01)00475-X · doi:10.1016/s0304-3835(01)00475-x
- Mordon, 2015, Light emitting fabric technologies for photodynamic therapy, Photodiagn. Photodyn. Ther., 12, 1, 10.1016/j.pdpdt.2014.11.002 · doi:10.1016/j.pdpdt.2014.11.002
- Forbes, 1984, Oxygen dependency of photocytotoxicity with haematoporphyrin derivative, Photochem. Photobiol., 39, 631, 10.1111/j.1751-1097.1984.tb03902.x · doi:10.1111/j.1751-1097.1984.tb03902.x
- Price, 2013, Effects of the oxygenation level on formation of different reactive oxygen species during photodynamic therapy, Photochem. Photobiol., 89, 683, 10.1111/php.12027 · doi:10.1111/php.12027
- Akilov, 2006, The role of photosensitizer molecular charge and structure on the efficacy of photodynamic therapy against leishmania parasites, Chem. Biol., 13, 839, 10.1016/j.chembiol.2006.06.008 · doi:10.1016/j.chembiol.2006.06.008
- Dummin, 1997, Selective photosensitization of mitochondria in HeLa cells by cationic Zn (II) phthalocyanines with lipophilic side-chains, J. Photochem. Photobiol. B, 37, 219, 10.1016/S1011-1344(96)07416-7 · doi:10.1016/s1011-1344(96)07416-7
- Pavani, 2009, Effect of zinc insertion and hydrophobicity on the membrane interactions and PDT activity of porphyrin photosensitizers, Photochem. Photobiol. Sci., 8, 233, 10.1039/b810313e · doi:10.1039/b810313e
- Chen, K.C., Hsieh, Y.S., Tseng, Y.F., Shieh, M.J., Chen, J.S., Lai, H.S., and Lee, J.M. (2015). Pleural photodynamic therapy and surgery in lung cancer and thymoma patients with pleural spread. PLoS ONE, 10. · doi:10.1371/journal.pone.0133230
- Kato, 2006, Basic and clinical research on photodynamic therapy at Tokyo Medical University Hospital, Lasers Surg. Med., 38, 371, 10.1002/lsm.20346 · doi:10.1002/lsm.20346
- Keeley, 2007, Photodynamic therapy with curative intent for barrett’s esophagus with high grade dysplasia and superficial esophageal cancer, Ann. Surg. Oncol., 14, 2406, 10.1245/s10434-007-9392-x · doi:10.1245/s10434-007-9392-x
- Yachimski, 2009, Patient predictors of histopathologic response after photodynamic therapy of barrett’s esophagus with high-grade dysplasia or intramucosal carcinoma, Gastrointest. Endosc., 69, 205, 10.1016/j.gie.2008.05.032 · doi:10.1016/j.gie.2008.05.032
- Gill, 2009, Pilot study on light dosimetry variables for photodynamic therapy of barrett’s esophagus with high-grade dysplasia, Clin. Cancer Res., 15, 1830, 10.1158/1078-0432.CCR-08-2317 · doi:10.1158/1078-0432.ccr-08-2317
- Prasad, 2008, Utility of biomarkers in prediction of response to ablative therapy in barrett’s esophagus, Gastroenterology, 135, 370, 10.1053/j.gastro.2008.04.036 · doi:10.1053/j.gastro.2008.04.036
- Prasad, 2008, Correlation of histology with biomarker status after photodynamic therapy in barrett esophagus, Cancer, 113, 470, 10.1002/cncr.23573 · doi:10.1002/cncr.23573
- Yoon, 2012, Role of photodynamic therapy in the palliation of obstructing esophageal cancer, Korean J. Intern. Med., 27, 278, 10.3904/kjim.2012.27.3.278 · doi:10.3904/kjim.2012.27.3.278
- Yano, 2005, Photodynamic therapy as salvage treatment for local failures after definitive chemoradiotherapy for esophageal cancer, Gastrointest. Endosc., 62, 31, 10.1016/S0016-5107(05)00545-6 · doi:10.1016/s0016-5107(05)00545-6
- Yano, 2008, Long-term results of salvage endoscopic mucosal resection in patients with local failure after definitive chemoradiotherapy for esophageal squamous cell carcinoma, Endoscopy, 40, 717, 10.1055/s-2008-1077480 · doi:10.1055/s-2008-1077480
- Prasad, 2007, Long-term survival following endoscopic and surgical treatment of high-grade dysplasia in barrett’s esophagus, Gastroenterology, 132, 1226, 10.1053/j.gastro.2007.02.017 · doi:10.1053/j.gastro.2007.02.017
- Gray, 2013, Long term efficacy of photodynamic therapy (PDT) as an ablative therapy of high grade dysplasia in barrett’s oesophagus, Photodiagn. Photodyn. Ther., 10, 561, 10.1016/j.pdpdt.2013.06.002 · doi:10.1016/j.pdpdt.2013.06.002
- David, 2015, Comparison of endoscopic treatment modalities for barrett’s neoplasia, Gastrointest. Endosc., 82, 793, 10.1016/j.gie.2015.03.1979 · doi:10.1016/j.gie.2015.03.1979
- Feyh, 1996, Photodynamic treatment for cancers of the head and neck, J. Photochem. Photobiol. B, 36, 175, 10.1016/S1011-1344(96)07366-6 · doi:10.1016/s1011-1344(96)07366-6
- Dilkes, 1995, Treatment of head and neck cancer with photodynamic therapy: Results after one year, J. Laryngol. Otol., 109, 1072, 10.1017/S0022215100132050 · doi:10.1017/s0022215100132050
- Copper, 2003, Meta-tetra(hydroxyphenyl)chlorin photodynamic therapy in early-stage squamous cell carcinoma of the head and neck, Arch. Otolaryngol. Head Neck Surg., 129, 709, 10.1001/archotol.129.7.709 · doi:10.1001/archotol.129.7.709
- Jerjes, 2011, Photodynamic therapy outcome for T1/T2 N0 oral squamous cell carcinoma, Lasers Surg. Med., 43, 463, 10.1002/lsm.21071 · doi:10.1002/lsm.21071
- Shikowitz, 2005, Clinical trial of photodynamic therapy with meso-tetra (hydroxyphenyl) chlorin for respiratory papillomatosis, Arch. Otolaryngol. Head Neck Surg., 131, 99, 10.1001/archotol.131.2.99 · doi:10.1001/archotol.131.2.99
- Fan, 1997, Photodynamic therapy using mTHPC for malignant disease in the oral cavity, Int. J. Cancer, 73, 25, 10.1002/(SICI)1097-0215(19970926)73:1<25::AID-IJC5>3.0.CO;2-3 · doi:10.1002/(sici)1097-0215(19970926)73:1<25::aid-ijc5>3.0.co;2-3
- Karakullukcu, 2013, A matched cohort comparison of mthpc-mediated photodynamic therapy and trans-oral surgery of early stage oral cavity squamous cell cancer, Eur. Arch. Otorhinolaryngol., 270, 1093, 10.1007/s00405-012-2104-6 · doi:10.1007/s00405-012-2104-6
- Stoker, 2015, Photodynamic therapy as salvage therapy for patients with nasopharyngeal carcinoma experiencing local failures following definitive radiotherapy, Photodiagn. Photodyn. Ther., 12, 519, 10.1016/j.pdpdt.2015.04.005 · doi:10.1016/j.pdpdt.2015.04.005
- Jerjes, 2009, Ultrasound-guided photodynamic therapy for deep seated pathologies: Prospective study, Lasers Surg. Med., 41, 612, 10.1002/lsm.20853 · doi:10.1002/lsm.20853
- Vander Poorten, V., Meulemans, J., Nuyts, S., Clement, P., Hermans, R., Hauben, E., and Delaere, P. (2015). Postoperative photodynamic therapy as a new adjuvant treatment after robot-assisted salvage surgery of recurrent squamous cell carcinoma of the base of tongue. World J. Surg. Oncol. · doi:10.1186/s12957-015-0630-6
- Caesar, L., Lorenz, K.J., Tan, B., Karakullukcu, B., Aans, J.B., and Dilici, A. (June, January 28). Photodynamic therapy in the treatment of recurrent sino-nasal skull base tumors. Proceedings of the 85th Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery, Dortmund, Germany.
- Nanashima, 2012, Photodynamic therapy using talaporfin sodium (laserphyrin(r)) for bile duct carcinoma: A preliminary clinical trial, AntiCancer Res., 32, 4931
- Berr, 2000, Neoadjuvant photodynamic therapy before curative resection of proximal bile duct carcinoma, J. Hepatol., 32, 352, 10.1016/S0168-8278(00)80083-5 · doi:10.1016/s0168-8278(00)80083-5
- Wagner, 2013, Photodynamic therapy for hilar bile duct cancer: Clinical evidence for improved tumoricidal tissue penetration by temoporfin, Photochem. Photobiol. Sci, 12, 1065, 10.1039/c3pp25425a · doi:10.1039/c3pp25425a
- Wentrup, 2016, Photodynamic therapy plus chemotherapy compared with photodynamic therapy alone in hilar nonresectable cholangiocarcinoma, Gut Liver, 10, 470, 10.5009/gnl15175 · doi:10.5009/gnl15175
- Lee, 2013, Efficacy and safety of photodynamic therapy for recurrent, high grade nonmuscle invasive bladder cancer refractory or intolerant to bacille calmette-guerin immunotherapy, J. Urol., 190, 1192, 10.1016/j.juro.2013.04.077 · doi:10.1016/j.juro.2013.04.077
- Choi, 2015, Photodynamic therapy for premalignant lesions of the vulva and vagina: A long-term follow-up study, Lasers Surg. Med., 47, 566, 10.1002/lsm.22384 · doi:10.1002/lsm.22384
- Hillemanns, 2008, Pharmacokinetics and selectivity of porphyrin synthesis after topical application of hexaminolevulinate in patients with cervical intraepithelial neoplasia, Am. J. Obstet. Gynecol., 198, 300. e1, 10.1016/j.ajog.2007.07.045 · doi:10.1016/j.ajog.2007.07.045
- Hillemanns, 2014, Efficacy and safety of hexaminolevulinate photodynamic therapy in patients with low-grade cervical intraepithelial neoplasia, Lasers Surg. Med., 46, 456, 10.1002/lsm.22255 · doi:10.1002/lsm.22255
- Soergel, 2010, Effects of photodynamic therapy using topical applied hexylaminolevulinate and methylaminolevulinate upon the integrity of cervical epithelium, Lasers Surg. Med., 42, 624, 10.1002/lsm.20979 · doi:10.1002/lsm.20979
- Azzouzi, 2013, Tookad® soluble vascular-targeted photodynamic (VTP) therapy: Determination of optimal treatment conditions and assessment of effects in patients with localised prostate cancer, BJU Int., 112, 766, 10.1111/bju.12265 · doi:10.1111/bju.12265
- Nakamura, 2014, Usefulness of photodynamic diagnosis and therapy using talaporfin sodium for an advanced-aged patient with inoperable gastric cancer (a secondary publication), Laser Ther., 23, 201, 10.5978/islsm.14-OR-16 · doi:10.5978/islsm.14-or-16
- Welbourn, 2014, Can photodynamic therapy be the preferred treatment option for anal intraepithelial neoplasia? Initial results of a pilot study, Photodiagn. Photodyn. Ther., 11, 20, 10.1016/j.pdpdt.2013.11.004 · doi:10.1016/j.pdpdt.2013.11.004
- Boixadera, 2009, Prospective clinical trial evaluating the efficacy of photodynamic therapy for symptomatic circumscribed choroidal hemangioma, Ophthalmology, 116, 100, 10.1016/j.ophtha.2008.08.029 · doi:10.1016/j.ophtha.2008.08.029
- Kaliki, 2012, Photodynamic therapy for choroidal metastasis in 8 cases, Ophthalmology, 119, 1218, 10.1016/j.ophtha.2011.12.024 · doi:10.1016/j.ophtha.2011.12.024
- Blasi, 2010, Photodynamic therapy with verteporfin for symptomatic circumscribed choroidal hemangioma: Five-year outcomes, Ophthalmology, 117, 1630, 10.1016/j.ophtha.2009.12.033 · doi:10.1016/j.ophtha.2009.12.033
- Kascakova, S., Hofland, L.J., De Bruijn, H.S., Ye, Y., Achilefu, S., van der Wansem, K., van der Ploeg-van den Heuvel, A., van Koetsveld, P.M., Brugts, M.P., and van der Lelij, A.J. (2014). Somatostatin analogues for receptor targeted photodynamic therapy. PLoS ONE, 9. · doi:10.1371/journal.pone.0104448
- Gravier, 2008, Improvement of meta-tetra(hydroxyphenyl)chlorin-like photosensitizer selectivity with folate-based targeted delivery. Synthesis and in vivo delivery studies, J. Med. Chem., 51, 3867, 10.1021/jm800125a · doi:10.1021/jm800125a
- Kameyama, 2011, Photodynamic therapy using an anti-egf receptor antibody complexed with verteporfin nanoparticles: A proof of concept study, Cancer Biother. Radiopharm., 26, 697
- Duska, 1997, Biodistribution of charged F(ab’)2 photoimmunoconjugates in a xenograft model of ovarian cancer, Br. J. Cancer, 75, 837, 10.1038/bjc.1997.149 · doi:10.1038/bjc.1997.149
- Kuimova, 2007, Fluorescence characterisation of multiply-loaded anti-HER2 single chain fv-photosensitizer conjugates suitable for photodynamic therapy, Photochem. Photobiol. Sci, 6, 933, 10.1039/b708320c · doi:10.1039/b708320c
- Bhatti, 2008, Targeted photodynamic therapy with multiply-loaded recombinant antibody fragments, Int. J. Cancer, 122, 1155, 10.1002/ijc.23206 · doi:10.1002/ijc.23206
- Milgrom, 2008, Towards recombinant antibody-fragment targeted photodynamic therapy, Sci. Prog., 91, 241, 10.3184/003685008X361415 · doi:10.3184/003685008x361415
- Vogl, 2004, Interstitial photodynamic laser therapy in interventional oncology, Eur. Radiol., 14, 1063, 10.1007/s00330-004-2290-8 · doi:10.1007/s00330-004-2290-8
- Jerjes, 2011, Photodynamic therapy: The minimally invasive surgical intervention for advanced and/or recurrent tongue base carcinoma, Lasers Surg. Med., 43, 283, 10.1002/lsm.21048 · doi:10.1002/lsm.21048
- Sajisevi, 2015, Image-guided interstitial photodynamic therapy for squamous cell carcinomas: Preclinical investigation, J. Oral Maxillofac. Surg. Med. Pathol., 27, 159, 10.1016/j.ajoms.2013.12.003 · doi:10.1016/j.ajoms.2013.12.003
- Chang, C., Wang, K.K., and Zhu, T.C. (2010). A fast heterogeneous algorithm for light fluence rate for prostate photodynamic therapy. Proc. SPIE Int. Soc. Opt. Eng. · doi:10.1117/12.843000
- Liang, X., Wang, K.K., and Zhu, T.C. (2012). Characterization of tissue optical properties for prostate PDT using interstitial diffuse optical tomography. Proc. SPIE Int. Soc. Opt. Eng. · doi:10.1117/12.908294
- Sharikova, A.V., Finlay, J.C., Dimofte, A., and Zhu, T.C. (2013). A robotic multi-channel platform for interstitial photodynamic therapy. Proc. SPIE Int. Soc. Opt. Eng. · doi:10.1117/12.2004955
- Pogue, B.W., Sheng, C., Benevides, J., Forcione, D., Puricelli, B., Nishioka, N., and Hasan, T. (2008). Protoporphyrin ix fluorescence photobleaching increases with the use of fractionated irradiation in the esophagus. J. Biomed. Opt. · doi:10.1117/1.2937476
- Woodburn, 1994, Biodistribution and PDT efficacy of a ketochlorin photosensitizer as a function of the delivery vehicle, Photochem. Photobiol., 60, 154, 10.1111/j.1751-1097.1994.tb05083.x · doi:10.1111/j.1751-1097.1994.tb05083.x
- Kruijt, 2006, Laser speckle imaging of dynamic changes in flow during photodynamic therapy, Lasers Med. Sci., 21, 208, 10.1007/s10103-006-0399-5 · doi:10.1007/s10103-006-0399-5
- Quon, 2015, Measuring the physiologic properties of oral lesions receiving fractionated photodynamic therapy, Photochem. Photobiol., 91, 1210, 10.1111/php.12475 · doi:10.1111/php.12475
- Gupta, 2014, Polyacrylamide-based biocompatible nanoplatform enhances the tumor uptake, PET/fluorescence imaging and anticancer activity of a chlorophyll analog, Theranostics, 4, 614, 10.7150/thno.8478 · doi:10.7150/thno.8478
- Marrache, 2013, Immune stimulating photoactive hybrid nanoparticles for metastatic breast cancer, Integr. Biol., 5, 215, 10.1039/c2ib20125a · doi:10.1039/c2ib20125a
- Moghissi, K. (2007). PDT: The plight. Photodiagn. Photodyn. Ther. · doi:10.1016/j.pdpdt.2007.10.003
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Metadata
- Authors
- Van Straten, D., Mashayekhi, V., De Bruijn, H., Oliveira, S., & Robinson, D.
- Venue
- Cancers
- Publisher
- MDPI AG
- Published
- 2017-02-18
- Volume
- 9
- Issue
- 2
- Pages
- 19
- ISSN
- 2072-6694 (ISSN-L)
- OpenAlex
- W2590947287
- Cited by
- 1,012
- References
- 317
- FWCI
- 72.90
- Type
- journal article
- Language
- en
- Open access
- gold
- Funders
- European Research Council (677582)
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