Abstract
Increased tryptophan metabolism via the kynurenine pathway is a major mechanism of tumor immuno-resistance. α-[11C]Methyl-l-tryptophan (AMT) is a positron emission tomography (PET) tracer for tryptophan catabolism, and increased AMT uptake has been demonstrated in brain tumors. In this study we evaluated the use of AMT PET for detection of low-grade gliomas and glioneuronal tumors, and determined if kinetic parameters of AMT uptake can differentiate among tumor types. AMT PET images were obtained in 23 patients with newly diagnosed low-grade brain tumors (WHO grade II gliomas and WHO grade I dysembryoplastic neuroepithelial tumors [DNETs]). Kinetic variables, including the unidirectional uptake rate (K-complex) and volume of distribution (VD; which characterizes tracer transport), were measured using a graphical approach from tumor dynamic PET and blood-input data, and metabolic rates (\( k^{\prime}_{3} \)) were also calculated. These values as well as tumor/cortex ratios were compared across tumor types. AMT PET showed increased tumor/cortex K-complex (n = 16) and/or VD ratios (n = 15) in 21/23 patients (91%), including 11/13 tumors with no gadolinium enhancement on MRI. No increases in AMT were seen in an oligodendroglioma and a DNET. Astrocytomas and oligoastrocytomas showed higher \( k^{\prime}_{3} \) tumor/cortex ratios (1.66 ± 0.46) than oligodendrogliomas (0.96 ± 0.21; P = 0.001) and DNETs (0.75 ± 0.39; P < 0.001). These results demonstrate that AMT PET identifies most low-grade gliomas and DNETs by high uptake, even if these tumors are not contrast-enhancing on MRI. Kinetic analysis of AMT uptake shows significantly higher tumor/cortex tryptophan metabolic ratios in astrocytomas and oligoastrocytomas in comparison with oligodendrogliomas and DNETs.
Similar content being viewed by others
References
Diksic M, Nagahiro S, Sourkes TL, Yamamoto YL (1990) A new method to measure brain serotonin synthesis in vivo. I. Theory and basic data for a biological model. J Cereb Blood Flow Metab 10:1–12
Muzik O, Chugani DC, Chakraborty P, Mangner T, Chugani HT (1997) Analysis of [C-11]alpha-methyl-tryptophan kinetics for the estimation of serotonin synthesis rate in vivo. J Cereb Blood Flow Metab 17:659–669
Chugani DC, Muzik O (2000) Alpha[C-11]methyl-l-tryptophan PET maps brain serotonin synthesis and kynurenine pathway metabolism. J Cereb Blood Flow Metab 20:2–9
Munn DH, Mellor AL (2007) Indoleamine 2,3-dioxygenase and tumor-induced tolerance. J Clin Invest 117:1147–1154
Batista CEA, Juhász C, Muzik O, Kupsky WJ, Barger G, Chugani HT, Chugani HT, Mittal S, Sood S, Chakraborty PK, Chugani DC (2009) Imaging correlates of differential expression of indoleamine 2,3-dioxygenase in human brain tumors. Mol Imaging Biol 11:460–466
Chen W (2007) Clinical applications of PET in brain tumors. J Nucl Med 48:1468–1481
Mittal S, Szlaczky MC, Barger GR (2008) Low-grade gliomas in adults. Curr Treat Options Neurol 10:271–284
Juhász C, Chugani DC, Muzik O et al (2006) In vivo uptake and metabolism of alpha-[11C]methyl-l-tryptophan in human brain tumors. J Cereb Blood Flow Metab 26:345–357
Atkinson M, Juhász C, Shah J, Guo X, Kupsky W, Fuerst D, Johnson R, Watson C (2008) Paradoxical imaging findings in cerebral gliomas. J Neurol Sci 269:180–183
Chugani DC, Muzik O, Chakraborty P, Mangner T, Chugani HT (1998) Human brain serotonin synthesis capacity measured in vivo with alpha-[C-11]methyl-l-tryptophan. Synapse 28:33–43
Muzik O, Behrendt DB, Mangner TJ, Chugani HT (1994) Design of a pediatric protocol for quantitative brain FDG studies with PET not requiring invasive blood sampling. J Nucl Med 35:104 [abstract]
Suhonen-Pulvi H, Ruotsalainen U, Kinnala A, Bergman J, Haaparanta M, Teräs M, Mäkelä P, Solin O, Wegelius U (1995) FDG-PET in early infancy: simplified quantification methods to measure cerebral glucose utilization. J Nucl Med 36:1249–1254
Gjedde A (1981) High- and low-affinity transport of d-glucose from blood to brain. J Neurochem 36:1463–1471
Patlak CS, Blasberg RG, Fenstermacher JD (1983) Graphical evaluation of blood-to-brain transfer constants from multiple-time uptake data. J Cereb Blood Flow Metab 3:1–7
Juhász C, Chugani DC, Muzik O, Shah A, Asano E, Mangner T, Chakraborty PK, Sood S, Chugani HT (2003) Alpha-methyl-l-tryptophan PET detects epileptogenic cortex in children with intractable epilepsy. Neurology 60:960–968
Pollack IF (1994) Brain tumors in children. N Engl J Med 331:1500–1507
Schomas DA, Laack NN, Rao RD, Meyer FB, Shaw EG, O’Neill BP, Giannini C, Brown PD (2009) Intracranial low-grade gliomas in adults: 30-year experience with long-term follow-up at Mayo Clinic. Neuro-Oncology 11:437–445
Vertosick FT Jr, Selker RG, Arena VC (1991) Survival of patients with well-differentiated astrocytomas diagnosed in the era of computed tomography. Neurosurgery 28:496–501
McCormack BM, Miller DC, Budzilovich GN, Voorhees GJ, Ransohoff J (1992) Treatment and survival of low-grade astrocytoma in adults—1977–1988. Neurosurgery 31:636–642
Mason WP, Krol GS, DeAngelis LM (1996) Low-grade oligodendroglioma responds to chemotherapy. Neurology 46:203–207
Olson JD, Riedel E, DeAngelis LM (2000) Long-term outcome of low-grade oligodendroglioma and mixed glioma. Neurology 54:1442–1448
Kitange GJ, Smith JS, Jenkins RB (2001) Genetic alterations and chemotherapeutic response in human diffuse gliomas. Expert Rev Anticancer Ther 1:595–605
Tozer DJ, Jäger HR, Danchaivijitr N, Benton CE, Tofts PS, Rees JH, Waldman AD (2007) Apparent diffusion coefficient histograms may predict low-grade glioma subtype. NMR Biomed 20:49–57
Khayal IS, McKnight TR, McGue C, Vandenberg S, Lamborn KR, Chang SM, Cha S, Nelson SJ (2009) Apparent diffusion coefficient and fractional anisotropy of newly diagnosed grade II gliomas. NMR Biomed 22:449–455
Khayal IS, Nelson SJ (2009) Characterization of low-grade gliomas using RGB color maps derived from ADC histograms. J Magn Reson Imaging 30:209–213
Galldiks N, Kracht LW, Berthold F, Miletic H, Klein JC, Herholz K, Jacobs AH, Heiss WD (2010) [11C]-l-Methionine positron emission tomography in the management of children and young adults with brain tumors. J Neurooncol 96:231–239
Hatakeyama T, Kawai N, Nishiyama Y, Yamamoto Y, Sasakawa Y, Ichikawa T, Tamiya T (2008) 11C-Methionine (MET) and 18F-fluorothymidine (FLT) PET in patients with newly diagnosed glioma. Eur J Nucl Med Mol Imaging 35:2009–2017
Kato T, Shinoda J, Nakayama N, Miwa K, Okumura A, Yano H, Yoshimura S, Maruyama T, Muragaki Y, Iwama T (2008) Metabolic assessment of gliomas using 11C-methionine, [18F] fluorodeoxyglucose, and 11C-choline positron-emission tomography. AJNR Am J Neuroradiol 29:1176–1182
Kato T, Shinoda J, Oka N, Miwa K, Nakayama N, Yano H, Maruyama T, Muragaki Y, Iwama T (2008) Analysis of 11C-methionine uptake in low-grade gliomas and correlation with proliferative activity. AJNR Am J Neuroradiol 29:1867–1871
Maehara T, Nariai T, Arai N, Kawai K, Shimizu H, Ishii K, Ishiwata K, Ohno K (2004) Usefulness of [11C]methionine PET in the diagnosis of dysembryoplastic neuroepithelial tumor with temporal lobe epilepsy. Epilepsia 45:41–45
Rosenberg DS, Demarquay G, Jouvet A, Le Bars D, Streichenberger N, Sindou M, Kopp N, Mauguière F, Ryvlin P (2005) [11C]-Methionine PET: dysembryoplastic neuroepithelial tumours compared with other epileptogenic brain neoplasms. J Neurol Neurosurg Psychiatry 76:1686–1692
Okubo S, Zhen HN, Kawai N, Nishiyama Y, Haba R, Tamiya T (2010) Correlation of l-methyl-11C-methionine (MET) uptake with l-type amino acid transporter 1 in human gliomas. J Neurooncol. doi:10.1007/s11060-010-0117-9
Astigiano S, Morandi B, Costa R, Mastracci L, D’Agostino A, Ratto GB, Melioli G, Frumento G (2005) Eosinophil granulocytes account for indoleamine 2,3-dioxygenase-mediated immune escape in human non-small cell lung cancer. Neoplasia 7:390–396
Okamoto A, Nikaido T, Ochiai K, Takakura S, Saito M, Aoki Y, Ishii N, Yanaihara N, Yamada K, Takikawa O, Kawaguchi R, Isonishi S, Tanaka T, Urashima M (2005) Indoleamine 2,3-dioxygenase serves as a marker of poor prognosis in gene expression profiles of serous ovarian cancer cells. Clin Cancer Res 11:6030–6039
Brandacher G, Perathoner A, Ladurner R, Schneeberger S, Obrist P, Winkler C, Werner ER, Werner-Felmayer G, Weiss HG, Göbel G, Margreiter R, Königsrainer A, Fuchs D, Amberger A (2006) Prognostic value of indoleamine 2,3-dioxygenase expression in colorectal cancer: effect on tumor-infiltrating T cells. Clin Cancer Res 12:1144–1151
Liu X, Newton RC, Friedman SM, Scherle PA (2009) Indoleamine 2,3-dioxygenase, an emerging target for anti-cancer therapy. Curr Cancer Drug Targets 9:938–952
Acknowledgments
The study was supported by a grant from the National Cancer Institute (#CA123451, to C. Juhász). The authors thank Cathie Germain, MA, Angela Wigeluk, CNMT, Carole Clapko, CNMT, Galina Rabkin, CNMT, Melissa Burkett, CNMT, Andrew Mosqueda, CNMT, Anna DeBoard, RN, Jane Cornett, RN, and Mei-li Lee, MS, for their assistance in patient recruitment and preparation, as well as performing the PET studies.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Juhász, C., Muzik, O., Chugani, D.C. et al. Differential kinetics of α-[11C]methyl-l-tryptophan on PET in low-grade brain tumors. J Neurooncol 102, 409–415 (2011). https://doi.org/10.1007/s11060-010-0327-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11060-010-0327-1