Biological and Pharmaceutical Bulletin
The Pharmaceutical Society of Japan, established in 1880, is one of Japan’s oldest and most distinguished academic societies. The Society currently has around 18,000 members. It publishes three monthly scientific journals. Chemical and Pharmaceutical Bulletin (Chem. Pharm. Bull.) began publication in 1953 as Pharmaceutical Bulletin. It covers chemistry fields in the pharmaceutical and health sciences. Biological and Pharmaceutical Bulletin (Biol. Pharm. Bull.) began publication in 1978 as the Journal of Pharmacobio-Dynamics. It covers various biological topics in the pharmaceutical and health sciences. A fourth Society journal, the Journal of Health Science, was merged with Biol. Pharm. Bull. in 2012. Yakugaku Zasshi (Japanese for “Pharmaceutical Science Journal”) has the longest history, with publication beginning in 1881. Yakugaku Zasshi is published mostly in Japanese, except for some articles related to clinical pharmacy and pharmaceutical education, which are published in English.
The main aim of the Society’s journals is to advance the pharmaceutical sciences with research reports, information exchange, and high-quality discussion. The average review time for articles submitted to the journals is around one month for first decision. The complete texts of all of the Society’s journals can be freely accessed through J-STAGE. The Society’s editorial committee hopes that the content of its journals will be useful to your research, and also invites you to submit your own work to the journals.

Chairman of Committee
Naoto Oku
School of Pharmaceutical Sciences, University of Shizuoka

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9,017 registered articles
(updated on March 30, 2017)
Online ISSN : 1347-5215
Print ISSN : 0918-6158
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Volume 40 (2017) Issue 3 Pages 297-302
An Activatable Fluorescent γ-Polyglutamic Acid Complex for Sentinel Lymph Node Imaging

Sentinel lymph nodes (SLN) are the first lymph nodes (LN) where cancer cells metastasize from the primary tumor. We designed fluorophore-quencher-based activatable nanoparticles for SLN imaging. We selected TAMRA as a fluorophore and BHQ2 or QSY7 as a quencher. Ternary anionic complexes were constructed with generation 4th polyamidoamine dendrimer (G4) modified with TAMRA and p-SCN-Bn-DTPA (DTPA), polyethyleneimine (PEI) modified with BHQ2 or QSY7, and γ-polyglutamic acid (γ-PGA) by the electrostatic self-assembly system. TAMRA-G4-DTPA/PEI-BHQ2/γ-PGA and TAMRA-G4-DTPA/PEI-QSY7/γ-PGA complexes had a particle size of about 40 nm and a ζ-potential of −50 mV, and showed fluorescence resonance energy transfer (FRET) quenching. Fluorescence microscopy studies demonstrated that TAMRA-G4-DTPA/PEI-QSY7/γ-PGA complex produced intracellular fluorescent signals in the lysosome. During in vivo fluorescent imaging, TAMRA-G4-DTPA/PEI-QSY7/γ-PGA complex enabled the detection of mouse popliteal LN. The fluorophore-quencher conjugated γ-PGA complex based on FRET quenching would be useful for fluorescence-based optical imaging of SLN.

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Sentinel lymph nodes (SLN) are the first LN where cancer cells metastasize from the primary tumor. As an activatable fluorescence probe to detect the SLNs, Hagimori et al. developed ternary anionic nanoparticles constructed with fluorophore (TAMRA)-labeled polyamidoamine dendrimer conjugated with diethylenetriaminepentaacetic acid (TAMRA-G4-DTPA), quencher-labeled polyethyleneimine (PEI-QSY7 or PEI-BHQ2), and g-polyglutamic acid, namely TAMRA-G4-DTPA/PEI-QSY7/g-PGA and TAMRA-G4-DTPA/PEI-BHQ2/g-PGA by the electrostatic self-assembly system. The fluorescence of these complexes was quenched by a strong stacking interaction of TAMRA and quenchers, but was dequenched by dissociation of complexes when taken up by inflammatory cells (high populations in LN). They performed fluorescence imaging at 24 h after intradermal injection of TAMRA-G4-DTPA/PEI-QSY7/g-PGA into mouse footpads. Then, TAMRA fluorescence signal was clearly visualized in popliteal lymph node with high contrast.

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