Skip to main content
Top
Published in: Journal of Neuro-Oncology 2/2009

01-01-2009 | Laboratory Investigation - human/animal tissue

Motexafin gadolinium enhances the efficacy of aminolevulinic acid mediated-photodynamic therapy in human glioma spheroids

Authors: Steen J. Madsen, Marlon S. Mathews, Even Angell-Petersen, Chung-Ho Sun, Van Vo, Rogelio Sanchez, Henry Hirschberg

Published in: Journal of Neuro-Oncology | Issue 2/2009

Login to get access

Abstract

Photodynamic therapy (PDT) has been investigated as a postoperative treatment in patients with high grade gliomas. The purpose of this in vitro investigation was to determine whether motexafin gadolinium (MGd), a known radiation sensitizer, could potentiate the effects of 5-aminolevulinic acid (ALA)-PDT. Human glioma (ACBT) spheroids (250 μm diameter) were incubated in 5-aminolevulinic acid (ALA) with and without MGd and irradiated with 635 nm light for a total light fluence of 6, 12, or 18 J cm−2 delivered at a fluence rate of 5 mW cm−2. Spheroid growth was monitored for a period of 4 weeks following each treatment. In another set of experiments, 400–500 μm diameter ACBT spheroids were implanted into a gel collagen matrix and subjected to ALA-PDT (fluence: 3 or 6 J cm−2), MGd, or a combination of ALA-PDT and MGd. The migration distance of surviving glioma cells in each treatment group was recorded over a 5-day period. The results showed that MGd interacted with PDT in a synergistic manner resulting in greater cytotoxicity than that achievable with either treatment modality alone. The degree of synergism was shown to increase with increasing light fluence. At the highest light fluence investigated (18 J cm−2), the percentage of spheroids demonstrating growth 4 weeks following exposure to MGd, ALA-PDT, or MGd + ALA-PDT was 100%, 75%, and 15%, respectively. The results of cell migration studies revealed that the combination of PDT and MGd produced a significant inhibitory effect on glioma cell migration: the addition of MGd resulted in an approximately three times reduction in migration distance compared with PDT alone. Overall, the results suggest that MGd can potentiate both the cytotoxic and migration inhibitory effects of ALA-PDT and hence, this combined therapeutic approach has the potential to extend treatment volumes in patients with malignant gliomas.
Literature
2.
go back to reference Wallner KE, Galicich JH, Krol G, Arbit E, Malkin MG (1989) Patterns of failure following treatments for glioblastoma multiforme and anaplastic astrocytoma. Int J Radiat Oncol Biol Phys 16:1405–1409PubMed Wallner KE, Galicich JH, Krol G, Arbit E, Malkin MG (1989) Patterns of failure following treatments for glioblastoma multiforme and anaplastic astrocytoma. Int J Radiat Oncol Biol Phys 16:1405–1409PubMed
3.
go back to reference Muller PJ, Wilson BC, Lilge LD, Yang V, Hetzel FW, Chen Q et al (2001) Photofrin photodynamic therapy for malignant brain tumors. In: Dougherty TJ (ed) Optical methods for tumor treatment and detection: mechanisms and techniques in photodynamic therapy. Proceedings SPIE, vol 4248, April 2001, SPIE Publishers, Bellingham, WA, pp 34–41 Muller PJ, Wilson BC, Lilge LD, Yang V, Hetzel FW, Chen Q et al (2001) Photofrin photodynamic therapy for malignant brain tumors. In: Dougherty TJ (ed) Optical methods for tumor treatment and detection: mechanisms and techniques in photodynamic therapy. Proceedings SPIE, vol 4248, April 2001, SPIE Publishers, Bellingham, WA, pp 34–41
4.
go back to reference Eljamel MS, Goodman C, Moseley H (2007) ALA and Photofrin® fluorescence-guided resection and repetitive PDT in glioblastoma multiforme: a single centre phase III randomised controlled trial. Lasers Med Sci. doi:10.1007/s10103-007-0494-2 Eljamel MS, Goodman C, Moseley H (2007) ALA and Photofrin® fluorescence-guided resection and repetitive PDT in glioblastoma multiforme: a single centre phase III randomised controlled trial. Lasers Med Sci. doi:10.​1007/​s10103-007-0494-2
5.
go back to reference Beck TJ, Kreth FW, Beyer W, Mehrkens JH, Obermeier A, Stepp H et al (2007) Interstitial photodynamic therapy of nonresectable malignant glioma recurrences using 5-aminolevulinic acid induced protoporphyrin IX. Lasers Surg Med 39(5):386–393. doi:10.1002/lsm.20507 PubMedCrossRef Beck TJ, Kreth FW, Beyer W, Mehrkens JH, Obermeier A, Stepp H et al (2007) Interstitial photodynamic therapy of nonresectable malignant glioma recurrences using 5-aminolevulinic acid induced protoporphyrin IX. Lasers Surg Med 39(5):386–393. doi:10.​1002/​lsm.​20507 PubMedCrossRef
7.
go back to reference Lilge L, Wilson BC (1998) Photodynamic therapy of intracranial tissues: a preclinical comparative study of four different photosensitizers. J Clin Laser Med Surg 16:81–92PubMed Lilge L, Wilson BC (1998) Photodynamic therapy of intracranial tissues: a preclinical comparative study of four different photosensitizers. J Clin Laser Med Surg 16:81–92PubMed
8.
go back to reference Hebeda KM, Saarnak AE, Olivo M, Sterenborg HJ, Wolbers JG (1998) 5-Aminolevulinic acid induced endogenous porphyrin fluorescence in 9L and C6 brain tumours and in the normal rat brain. Acta Neurochir (Wien) 140:503–513. doi:10.1007/s007010050132 CrossRef Hebeda KM, Saarnak AE, Olivo M, Sterenborg HJ, Wolbers JG (1998) 5-Aminolevulinic acid induced endogenous porphyrin fluorescence in 9L and C6 brain tumours and in the normal rat brain. Acta Neurochir (Wien) 140:503–513. doi:10.​1007/​s007010050132 CrossRef
10.
go back to reference Obwegeser A, Jakober R, Kostron H (1998) Uptake and kinetics of 14C-labelled meta-tetrahydroxylchlorin and 5-aminolevulinic acid in the C6 rat glioma model. Br J Cancer 78:733–738PubMed Obwegeser A, Jakober R, Kostron H (1998) Uptake and kinetics of 14C-labelled meta-tetrahydroxylchlorin and 5-aminolevulinic acid in the C6 rat glioma model. Br J Cancer 78:733–738PubMed
11.
go back to reference Stummer W, Stocker S, Novotny A, Heimann A, Sauer O, Kempski O et al (1998) In vitro and in vivo porphyrin accumulation by C6 glioma cells after exposure to 5-aminolevulinic acid. J Photochem Photobiol B Biol 45:160–169. doi:10.1016/S1011-1344(98)00176-6 CrossRef Stummer W, Stocker S, Novotny A, Heimann A, Sauer O, Kempski O et al (1998) In vitro and in vivo porphyrin accumulation by C6 glioma cells after exposure to 5-aminolevulinic acid. J Photochem Photobiol B Biol 45:160–169. doi:10.​1016/​S1011-1344(98)00176-6 CrossRef
14.
go back to reference Stummer W, Novotny A, Stepp H, Goetz C, Bise K, Reulen HJ (2000) Fluorescence-guided resection of glioblastoma multiforme by using 5-aminolevulinic acid-induced porphyrins: a prospective study in 52 consecutive patients. J Neurosurg 93:1003–1013PubMedCrossRef Stummer W, Novotny A, Stepp H, Goetz C, Bise K, Reulen HJ (2000) Fluorescence-guided resection of glioblastoma multiforme by using 5-aminolevulinic acid-induced porphyrins: a prospective study in 52 consecutive patients. J Neurosurg 93:1003–1013PubMedCrossRef
15.
go back to reference Angell-Petersen E, Hirschberg H, Madsen SJ (2007) Determination of fluence rate and temperature distributions in the rat brain; implications for photodynamic therapy. J Biomed Opt 12(1):014003-1–014003-9CrossRef Angell-Petersen E, Hirschberg H, Madsen SJ (2007) Determination of fluence rate and temperature distributions in the rat brain; implications for photodynamic therapy. J Biomed Opt 12(1):014003-1–014003-9CrossRef
16.
go back to reference Sessler JL, Burrell AK (1992) Expanded porphyrins. Top Curr Chem 161:177–273 Sessler JL, Burrell AK (1992) Expanded porphyrins. Top Curr Chem 161:177–273
19.
go back to reference Madsen SJ, Sun C-H, Tromberg BJ, Wallace VP, Hirschberg H (2000) Photodynamic therapy of human glioma spheroids using 5-aminolevulinic acid. Photochem Photobiol 72(1):128–134. doi:10.1562/0031-8655(2000)072<0128:PTOHGS>2.0.CO;2PubMedCrossRef Madsen SJ, Sun C-H, Tromberg BJ, Wallace VP, Hirschberg H (2000) Photodynamic therapy of human glioma spheroids using 5-aminolevulinic acid. Photochem Photobiol 72(1):128–134. doi:10.1562/0031-8655(2000)072<0128:PTOHGS>2.0.CO;2PubMedCrossRef
20.
go back to reference Sutherland RM, Carlsson J, Durand RE, Yuhas J (1981) Spheroids in cancer research. Cancer Res 41:2980–2994 Sutherland RM, Carlsson J, Durand RE, Yuhas J (1981) Spheroids in cancer research. Cancer Res 41:2980–2994
21.
go back to reference Drewinko B, Loo TL, Brown B, Gottlieb JA, Freireich EJ (1976) Combination therapy in vitro with adriamycin: observation of additive, antagonistic, and synergistic effects when used in two-drug combinations on cultured human lymphoma cells. Cancer Biochem Biophys 1:187–195PubMed Drewinko B, Loo TL, Brown B, Gottlieb JA, Freireich EJ (1976) Combination therapy in vitro with adriamycin: observation of additive, antagonistic, and synergistic effects when used in two-drug combinations on cultured human lymphoma cells. Cancer Biochem Biophys 1:187–195PubMed
22.
23.
go back to reference Mathews MS, Sun C–H, Madsen SJ, Hirschberg H (2007) Comparing the effects of repetitive and chronic PDT in human glioma spheroids. In: Kollias N, Choi B, Zeng H et al (eds) Photonic therapeutics and diagnostics III. Proceedings SPIE, vol 6424, SPIE Publishers, Bellingham, WA, pp D1–D9 Mathews MS, Sun C–H, Madsen SJ, Hirschberg H (2007) Comparing the effects of repetitive and chronic PDT in human glioma spheroids. In: Kollias N, Choi B, Zeng H et al (eds) Photonic therapeutics and diagnostics III. Proceedings SPIE, vol 6424, SPIE Publishers, Bellingham, WA, pp D1–D9
25.
go back to reference Giese A, Loo MA, Tran N, Haskett D, Coons SW, Berens ME (1996) Dichotomy of astrocytoma migration and proliferation. Int J Cancer 67:275–282. doi:10.1002/(SICI)1097-0215(19960717)67:2<275::AID-IJC20>3.0.CO;2-9PubMedCrossRef Giese A, Loo MA, Tran N, Haskett D, Coons SW, Berens ME (1996) Dichotomy of astrocytoma migration and proliferation. Int J Cancer 67:275–282. doi:10.1002/(SICI)1097-0215(19960717)67:2<275::AID-IJC20>3.0.CO;2-9PubMedCrossRef
29.
go back to reference Uhm JH, Dooley NP, Villemure JG, Yong VW (1997) Mechanisms of glioma invasion: role of matrix-metalloproteinases. Can J Neurol Sci 24:3–15PubMed Uhm JH, Dooley NP, Villemure JG, Yong VW (1997) Mechanisms of glioma invasion: role of matrix-metalloproteinases. Can J Neurol Sci 24:3–15PubMed
30.
go back to reference Koul D, Parthasarathy R, Shen R, Davies MA, Jasser SA, Chintala SK et al (2001) Suppression of matrix metalloproteinase-2 gene expression and invasion in human glioma cells by MMAC/PTEN. Oncogene 20:6669–6678. doi:10.1038/sj.onc.1204799 PubMedCrossRef Koul D, Parthasarathy R, Shen R, Davies MA, Jasser SA, Chintala SK et al (2001) Suppression of matrix metalloproteinase-2 gene expression and invasion in human glioma cells by MMAC/PTEN. Oncogene 20:6669–6678. doi:10.​1038/​sj.​onc.​1204799 PubMedCrossRef
31.
go back to reference Maidment SL (1997) The cytoskeleton and brain tumour cell migration. Anticancer Res 17:4145–4149PubMed Maidment SL (1997) The cytoskeleton and brain tumour cell migration. Anticancer Res 17:4145–4149PubMed
32.
go back to reference Chicoine MR, Silbergeld DL (1995) Assessment of brain tumor cell motility in vivo and in vitro. J Neurosurg 82:615–622PubMed Chicoine MR, Silbergeld DL (1995) Assessment of brain tumor cell motility in vivo and in vitro. J Neurosurg 82:615–622PubMed
35.
go back to reference Doiron DR, Svaasand LO, Profio AE (1983) Light dosimetry in tissue applications to photoradiation therapy. In: Kessel D, Dougherty TJ (eds) Porphyrin photosensitization. Plenum Press, New York, pp 63–75 Doiron DR, Svaasand LO, Profio AE (1983) Light dosimetry in tissue applications to photoradiation therapy. In: Kessel D, Dougherty TJ (eds) Porphyrin photosensitization. Plenum Press, New York, pp 63–75
38.
go back to reference Madsen SJ, Sun C-H, Tromberg BJ, Hirschberg H (2001) Development of a novel indwelling balloon applicator for optimizing light delivery in photodynamic therapy. Lasers Surg Med 29:406–412. doi:10.1002/lsm.10005 PubMedCrossRef Madsen SJ, Sun C-H, Tromberg BJ, Hirschberg H (2001) Development of a novel indwelling balloon applicator for optimizing light delivery in photodynamic therapy. Lasers Surg Med 29:406–412. doi:10.​1002/​lsm.​10005 PubMedCrossRef
39.
go back to reference Bisland SK, Lilge L, Lin A, Rusnow R, Wilson BC (2004) Metronomic photodynamic therapy as a new paradigm for photodynamic therapy: rationale and preclinical evaluation of technical feasibility for treating malignant brain tumors. Photochem Photobiol 80:22–30. doi:10.1562/2004-03-05-RA-100.1 PubMedCrossRef Bisland SK, Lilge L, Lin A, Rusnow R, Wilson BC (2004) Metronomic photodynamic therapy as a new paradigm for photodynamic therapy: rationale and preclinical evaluation of technical feasibility for treating malignant brain tumors. Photochem Photobiol 80:22–30. doi:10.​1562/​2004-03-05-RA-100.​1 PubMedCrossRef
42.
go back to reference Carde P, Timmerman R, Mehta MP, Koprowski CD, Ford J, Tishler RB et al (2001) Multicenter phase IB/II trial of the radiation enhancer motexafin gadolinium in patients with brain metastases. J Clin Oncol 19:2074–2083PubMed Carde P, Timmerman R, Mehta MP, Koprowski CD, Ford J, Tishler RB et al (2001) Multicenter phase IB/II trial of the radiation enhancer motexafin gadolinium in patients with brain metastases. J Clin Oncol 19:2074–2083PubMed
43.
46.
go back to reference Hirschberg H, Sørensen DR, Angell-Petersen E, Peng Q, Tromberg B, Sun CH et al (2006) Repetitive photodynamic therapy of malignant brain tumors. J Environ Pathol Toxicol Oncol 25(1–2):261–280PubMed Hirschberg H, Sørensen DR, Angell-Petersen E, Peng Q, Tromberg B, Sun CH et al (2006) Repetitive photodynamic therapy of malignant brain tumors. J Environ Pathol Toxicol Oncol 25(1–2):261–280PubMed
47.
go back to reference Viala J, Vanel D, Meingan P, Lartigau E, Carde P, Renschler MF (1999) Phases IB and II multidose trial of gadolinium texaphyrin, a radiation sensitizer detectable at MR imaging: preliminary results in brain metastases. Radiology 212:755–759PubMed Viala J, Vanel D, Meingan P, Lartigau E, Carde P, Renschler MF (1999) Phases IB and II multidose trial of gadolinium texaphyrin, a radiation sensitizer detectable at MR imaging: preliminary results in brain metastases. Radiology 212:755–759PubMed
48.
go back to reference Mehta MP, Shapiro WR, Glantz MJ, Patchell RA, Weitzner MA, Meyers CA et al (2002) Lead-in phase to randomized trial of motexafin gadolinium and whole-brain radiation for patients with brain metastases: centralized assessment of magnetic resonance imaging, neurocognitive, and neurologic end points. J Clin Oncol 20:3445–3453. doi:10.1200/JCO.2002.07.500 PubMedCrossRef Mehta MP, Shapiro WR, Glantz MJ, Patchell RA, Weitzner MA, Meyers CA et al (2002) Lead-in phase to randomized trial of motexafin gadolinium and whole-brain radiation for patients with brain metastases: centralized assessment of magnetic resonance imaging, neurocognitive, and neurologic end points. J Clin Oncol 20:3445–3453. doi:10.​1200/​JCO.​2002.​07.​500 PubMedCrossRef
49.
go back to reference Mehta MP, Rodrigus P, Terhaard CH, Rao A, Suh J, Roa W et al (2003) Survival and neurologic outcomes in a randomized trial of motexafin gadolinium and whole-brain radiation therapy in brain metastases. J Clin Oncol 21(13):2529–2536. doi:10.1200/JCO.2003.12.122 PubMedCrossRef Mehta MP, Rodrigus P, Terhaard CH, Rao A, Suh J, Roa W et al (2003) Survival and neurologic outcomes in a randomized trial of motexafin gadolinium and whole-brain radiation therapy in brain metastases. J Clin Oncol 21(13):2529–2536. doi:10.​1200/​JCO.​2003.​12.​122 PubMedCrossRef
50.
go back to reference Meyers CA, Smith JA, Bezjak A, Mehta MP, Liebmann J, Illidge T et al (2004) Neurocognitive function and progression in patients with brain metastases treated with whole-brain radiation and motexafin gadolinium: results of a randomized phase III trial. J Clin Oncol 22(1):157–165. doi:10.1200/JCO.2004.05.128 PubMedCrossRef Meyers CA, Smith JA, Bezjak A, Mehta MP, Liebmann J, Illidge T et al (2004) Neurocognitive function and progression in patients with brain metastases treated with whole-brain radiation and motexafin gadolinium: results of a randomized phase III trial. J Clin Oncol 22(1):157–165. doi:10.​1200/​JCO.​2004.​05.​128 PubMedCrossRef
51.
go back to reference Rosenthal DI, Nurenberg P, Becerra CR, Frenkel EP, Carbone DP, Lum BL et al (1999) A phase I single dose trial of gadolinium texaphyrin (Gd-Tex), a tumor selective radiation sensitizer detectable by magnetic resonance imaging. Clin Cancer Res 5:739–745PubMed Rosenthal DI, Nurenberg P, Becerra CR, Frenkel EP, Carbone DP, Lum BL et al (1999) A phase I single dose trial of gadolinium texaphyrin (Gd-Tex), a tumor selective radiation sensitizer detectable by magnetic resonance imaging. Clin Cancer Res 5:739–745PubMed
52.
go back to reference Miller RA, Woodburn K, Fan Q, Renschler MF, Sessler JL, Koutcher JA (1999) In vivo animal studies with gadolinium (III) texaphyrin as a radiation enhancer. Int J Radiat Oncol Biol Phys 45(4):981–989. doi:10.1016/S0360-3016(99)00274-6 PubMed Miller RA, Woodburn K, Fan Q, Renschler MF, Sessler JL, Koutcher JA (1999) In vivo animal studies with gadolinium (III) texaphyrin as a radiation enhancer. Int J Radiat Oncol Biol Phys 45(4):981–989. doi:10.​1016/​S0360-3016(99)00274-6 PubMed
54.
go back to reference Woodburn KW (2001) Intracellular localization of the radiation enhancer motexafin gadolinium using interferometric Fourier fluorescence microscopy. J Pharmacol Exp Ther 297:888–894PubMed Woodburn KW (2001) Intracellular localization of the radiation enhancer motexafin gadolinium using interferometric Fourier fluorescence microscopy. J Pharmacol Exp Ther 297:888–894PubMed
55.
go back to reference Hirschberg H, Mathews MS, Angell-Petersen E, Spetalen S, Madsen SJ (2007) Increased brain edema following 5-aminolevulinic acid administration mediated photodynamic therapy in normal and tumor-bearing rats. In: Kollias N, Choi B, Zeng H et al (eds) Photonic therapeutics and diagnostics III. Proceedings SPIE, vol 6424, SPIE Publishers, Bellingham, WA, pp B1–B8 Hirschberg H, Mathews MS, Angell-Petersen E, Spetalen S, Madsen SJ (2007) Increased brain edema following 5-aminolevulinic acid administration mediated photodynamic therapy in normal and tumor-bearing rats. In: Kollias N, Choi B, Zeng H et al (eds) Photonic therapeutics and diagnostics III. Proceedings SPIE, vol 6424, SPIE Publishers, Bellingham, WA, pp B1–B8
56.
go back to reference Hirschberg H, Zhang M, Chighvinadze D, Peng Q, Madsen SJ (2008) Targeted opening of the blood brain barrier by ALA mediated PDT. In: Kollias N, Choi B, Zeng H et al (eds) Photonic therapeutics and diagnostics IV. Proceedings SPIE, vol 6842, SPIE Publishers, Bellingham, WA, pp O1–O11 Hirschberg H, Zhang M, Chighvinadze D, Peng Q, Madsen SJ (2008) Targeted opening of the blood brain barrier by ALA mediated PDT. In: Kollias N, Choi B, Zeng H et al (eds) Photonic therapeutics and diagnostics IV. Proceedings SPIE, vol 6842, SPIE Publishers, Bellingham, WA, pp O1–O11
57.
go back to reference Madsen SJ, Angell-Petersen E, Spitalen S, Carper SW, Ziegler S, Hirschberg H (2006) Photodynamic therapy of newly implanted glioma cells in the rat brain. Lasers Surg Med 38:540–548. doi:10.1002/lsm.20274 PubMedCrossRef Madsen SJ, Angell-Petersen E, Spitalen S, Carper SW, Ziegler S, Hirschberg H (2006) Photodynamic therapy of newly implanted glioma cells in the rat brain. Lasers Surg Med 38:540–548. doi:10.​1002/​lsm.​20274 PubMedCrossRef
58.
go back to reference Madsen SJ, Kharkhuu K, Hirschberg H (2007) Utility of the F98 rat glioma model for photodynamic therapy. J Environ Pathol Toxicol Oncol 26(2):149–155PubMed Madsen SJ, Kharkhuu K, Hirschberg H (2007) Utility of the F98 rat glioma model for photodynamic therapy. J Environ Pathol Toxicol Oncol 26(2):149–155PubMed
59.
go back to reference Madsen SJ, Sun C-H, Tromberg BJ, Yeh AT, Sanchez R, Hirschberg H (2002) Effects of combined photodynamic therapy and ionizing radiation on human glioma spheroids. Photochem Photobiol 76:411–416. doi:10.1562/0031-8655(2002)076<0411:EOCPTA>2.0.CO;2PubMedCrossRef Madsen SJ, Sun C-H, Tromberg BJ, Yeh AT, Sanchez R, Hirschberg H (2002) Effects of combined photodynamic therapy and ionizing radiation on human glioma spheroids. Photochem Photobiol 76:411–416. doi:10.1562/0031-8655(2002)076<0411:EOCPTA>2.0.CO;2PubMedCrossRef
60.
go back to reference Hirschberg H, Sun C-H, Yeh AT, Tromberg BJ, Madsen SJ (2004) Enhanced effects of concurrent 5-aminolevulinic acid-mediated photodynamic therapy by hyperthermia on human glioma spheroids. J Neurooncol 70:289–299. doi:10.1007/s11060-004-9161-7 PubMedCrossRef Hirschberg H, Sun C-H, Yeh AT, Tromberg BJ, Madsen SJ (2004) Enhanced effects of concurrent 5-aminolevulinic acid-mediated photodynamic therapy by hyperthermia on human glioma spheroids. J Neurooncol 70:289–299. doi:10.​1007/​s11060-004-9161-7 PubMedCrossRef
61.
go back to reference Iinuma S, Farshi SS, Ortel B, Hasan T (1994) A mechanistic study of cellular photodestruction with 5-aminolevulinic acid-induced porphyrin. Br J Cancer 70:21–28PubMed Iinuma S, Farshi SS, Ortel B, Hasan T (1994) A mechanistic study of cellular photodestruction with 5-aminolevulinic acid-induced porphyrin. Br J Cancer 70:21–28PubMed
62.
go back to reference Verma A, Facchina SL, Hirsch DJ, Song S-Y, Dillahey LF, Williams JR et al (1998) Photodynamic tumor therapy: mitochondrial benzodiazepine receptors as a therapeutic target. Mol Med 4:40–48PubMed Verma A, Facchina SL, Hirsch DJ, Song S-Y, Dillahey LF, Williams JR et al (1998) Photodynamic tumor therapy: mitochondrial benzodiazepine receptors as a therapeutic target. Mol Med 4:40–48PubMed
Metadata
Title
Motexafin gadolinium enhances the efficacy of aminolevulinic acid mediated-photodynamic therapy in human glioma spheroids
Authors
Steen J. Madsen
Marlon S. Mathews
Even Angell-Petersen
Chung-Ho Sun
Van Vo
Rogelio Sanchez
Henry Hirschberg
Publication date
01-01-2009
Publisher
Springer US
Published in
Journal of Neuro-Oncology / Issue 2/2009
Print ISSN: 0167-594X
Electronic ISSN: 1573-7373
DOI
https://doi.org/10.1007/s11060-008-9692-4

Other articles of this Issue 2/2009

Journal of Neuro-Oncology 2/2009 Go to the issue