@article{LapaKircherHaenscheidetal.2018,
  author    = {Lapa, Constantin and Kircher, Malte and H{\"a}nscheid, Heribert and Schirbel, Andreas and Grigoleit, G{\"o}tz Ulrich and Klinker, Erdwine and B{\"o}ck, Markus and Samnick, Samuel and Pelzer, Theo and Buck, Andreas K},
  title     = {Peptide receptor radionuclide therapy as a new tool in treatment-refractory sarcoidosis - initial experience in two patients},
  series = {Theranostics},
  volume    = {8},
  journal   = {Theranostics},
  number    = {3},
  doi       = {10.7150/thno.22161},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-158983},
  pages     = {644-649},
  year      = {2018},
  abstract  = {Sarcoidosis is a multisystem granulomatous disorder of unknown etiology that can involve virtually all organ systems. Whereas most patients present without symptoms, progressive and disabling organ failure can occur in up to 10\% of subjects. Somatostatin receptor (SSTR)-directed peptide receptor radionuclide therapy (PRRT) has recently received market authorization for treatment of SSTR-positive neuroendocrine tumors. Methods: We describe the first case series comprising two patients with refractory multi-organ involvement of sarcoidosis who received 4 cycles of PRRT. Results: PRRT was well-tolerated without any acute adverse effects. No relevant toxicities could be recorded during follow-up. Therapy resulted in partial response accompanied by a pronounced reduction in pain (patient \#1) and stable disease regarding morphology as well as disease activity (patient \#2), respectively. Conclusion: Peptide receptor radionuclide therapy in sarcoidosis is feasible and might be a new valuable tool in patients with otherwise treatment-refractory disease. Given the long experience with and good tolerability of PRRT, further evaluation of this new treatment option for otherwise treatment-refractory sarcoidosis in larger patient cohorts is warranted.},
  language  = {en}
}
@article{LueckerathLapaAlbertetal.2015,
  author    = {L{\"u}ckerath, Katharina and Lapa, Constantin and Albert, Christa and Herrmann, Ken and J{\"o}rg, Gerhard and Samnick, Samuel and Einsele, Herrmann and Knop, Stefan and Buck, Andreas K.},
  title     = {\(^{11}\)C-Methionine-PET: a novel and sensitive tool for monitoring of early response to treatment in multiple myeloma},
  series = {Oncotarget},
  volume    = {6},
  journal   = {Oncotarget},
  number    = {10},
  doi       = {10.18632/oncotarget.3053},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-148688},
  pages     = {8418-8429},
  year      = {2015},
  abstract  = {Multiple myeloma (MM) remains an essentially incurable hematologic malignancy. However, new treatment modalities and novel drugs have been introduced and thus additional tools for therapy monitoring are increasingly needed. Therefore, we evaluated the radiotracers \(^{11}\)C-Methionine (paraprotein-biosynthesis) and \(^{18}\)F-FDG (glucose-utilization) for monitoring response to anti-myeloma-therapy and outcome prediction. Influence of proteasome-inhibition on radiotracer-uptake of different MM cell-lines and patient-derived CD138\(^{+}\) plasma cells was analyzed and related to tumor-biology. Mice xenotransplanted with MM. 1S tumors underwent MET- and FDG-\(\mu\)PET. Tumor-to-background ratios before and after 24 h, 8 and 15 days treatment with bortezomib were correlated to survival. Treatment reduced both MET and FDG uptake; changes in tracer-retention correlated with a switch from high to low CD138-expression. In xenotransplanted mice, MET-uptake significantly decreased by 30-79\% as early as 24 h after bortezomib injection. No significant differences were detected thus early with FDG. This finding was confirmed in patient-derived MM cells. Importantly, early reduction of MET-but not FDG-uptake correlated with improved survival and reduced tumor burden in mice. Our results suggest that MET is superior to FDG in very early assessment of response to anti-myeloma-therapy. Early changes in MET-uptake have predictive potential regarding response and survival. MET-PET holds promise to individualize therapies in MM in future.},
  language  = {en}
}