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- 저자 : Baldetorp, Bo (검색결과 2 건)
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Bjurberg, Maria,Abedinpour, Parisa,Brun, Eva,Baldetorp, Bo,Borgstrom, Per,Wennerberg, Johan,Kjellen, Elisabeth 대한핵의학회 2010 핵의학 분자영상 Vol.44 No.3
Purpose Early metabolic response with a decrease in glucose demand after cytotoxic treatment has been reported to precede tumor volume shrinkage. However, preclinical studies report of a very early rise in metabolism, a flare, following treatment. To elucidate these observations, we performed an experimental study on early metabolic response with sequential analysis of metabolic changes. Methods Three squamous cell carcinoma cell lines and one nontumorigenic cell line were exposed to cisplatin. The uptake of the fluorescent glucose analogue 2-NBDG was examined at days 1.6 using fluorescence microscopy. The relation between 2-NBDG-uptake and cell survival was evaluated. Results The tumor cells exhibited a high uptake of 2-NBDG, whereas the uptake in the nonmalignant cells was low. The more cisplatin sensitive cell lines exhibited a more pronounced metabolic flare than the less sensitive cell line. Conclusion A metabolic flare was a very early sign of treatment response and potentially it could be used as an early marker of treatment sensitivity.
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Drug compound characterization by mass spectrometry imaging in cancer tissue
권호정,Johan Malm,김용효,Yutaka Sugihara,Bo Baldetorp,Charlotte Welinder,Ken-ichi Watanabe,Toshihide Nishimura,Gyo¨rgy Marko-Varga,Szilvia To¨ro¨k,Bala´zs Do¨me,´ kos Ve´gva´ri,Lena Gustavsson,Thomas E. Feh 대한약학회 2015 Archives of Pharmacal Research Vol.38 No.9
MALDI mass spectrometry imaging (MSI)provides a technology platform that allows the accuratevisualization of unlabeled small molecules within the twodimensionalspaces of tissue samples. MSI has proven to bea powerful tool-box concept in the development of newdrugs. MSI allows unlabeled drug compounds and drugmetabolites to be detected and identified and quantifiedaccording to their mass-to-charge ratios (m/z) at high resolutionin complex tissue environments. Such drug characterizationin situ, by both spatial and temporal behaviorswithin tissue compartments, provide new understandings ofthe dynamic processes impacting drug uptake and metabolismat the local sites targeted by therapy. Further, MSIin combination with histology and immunohistochemistry,provides the added value of defining the context of cellbiology present at the sites of drug localization thus providinginvaluable information relating to treatment efficacy. In this report we provide mass spectrometry imagingdata within various cancers such as malignant melanoma inpatients administered with vemurafenib, a protein kinaseinhibitor that is targeting BRAF mutated proteins and thathas shown significant efficacy in restraining disease progression. We also provide an overview of other examplesof the new generation of targeted drugs, and demonstratethe data on personalized medicine drugs localization withintumor compartments within in vivo models. In these cancermodels we provide detailed data on drug and target proteinco-localization of YCG185 and sunitinib. These drugs aretargeting VEGFR2 within the angiogenesis mechanism. Our ability to resolve drug uptake at targeted sites ofdirected therapy provides important opportunities forincreasing our understanding about the mode of action ofdrug activity within the environment of disease.
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