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Poly adenosine diphosphate-ribosylation, a promising target for colorectal cancer treatment

World Journal of Gastrointestinal Oncology 2021年第6期13卷 574-588页

作者： Keun-Yeong Jeong minhee park Research and Development Metimedi PharmaceuticalsIncheon 22006South Korea

The development of colorectal cancer(CRC)can result from changes in a variety of cellular systems within the tumor ***,it is primarily associated with genomic instability that is the gradual accumulation of genetic and epigenetic changes consisting of a characteristic set of mutations crucial for pathways in CRC *** on this background,the potential to focus on poly[adenosine diphosphate(ADP)-ribose]polymerase(PARP)-1 and poly-ADP ribosylation(PARylation)as the main causes of malignant formation of CRC may be *** of the important functions of PARP-1 and PARylation is its deoxyribonucleic acid(DNA)repair function,which plays a pivotal role in the DNA damage response and prevention of DNA damage maintaining the redox homeostasis involved in the regulation of oxidation and ***-1 and PARylation can also alter epigenetic markers and chromatin structure involved in transcriptional regulation for the oncogenes or tumor suppressor genes by remodeling histone and chromatin *** the high importance of these processes in CRC,it can be considered that PARP-1 and PARylation are at the forefront of the pathological changes required for CRC ***,this review addresses the current molecular biological features for understanding the multifactorial function of PARP-1 and PARylation in CRC related to the aforementioned roles;furthermore,it presents a summary of recent approaches with PARP-1 inhibition in non-clinical and clinical studies targeting *** understanding could help embrace the importance of targeting PARP-1 and PARylation in the treatment of CRC,which may present the potential to identify various research topics that can be challenged both nonclinically and clinically.

关键词： Colorectal cancer Poly adenosine diphosphate-ribose polymerase-1 Poly adenosine diphosphate-ribose Poly-adenosine diphosphate ribosylation

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Accumulation of poly(adenosine diphosphate-ribose)by sustained supply of calcium inducing mitochondrial stress in pancreatic cancer cells

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World Journal of Gastroenterology 2022年第27期28卷 3422-3434页

作者： Keun-Yeong Jeong Jae Jun Sim minhee park Hwan Mook Kim Research and Development Metimedi PharmaceuticalsIncheon 22006South Korea

BACKGROUND The biochemical phenomenon defined as poly adenosine diphosphate(ADP)-ribosylation(PARylation)is essential for the progression of pancreatic ***,the excessive accumulation of poly ADP-ribose(PAR)induces apoptosis-inducing factor(AIF)release from mitochondria and energy deprivation resulting in the caspase-independent death of cancer *** To investigate whether sustained calcium supply could induce an anticancer effect on pancreatic cancer by PAR *** Two pancreatic cancer cell lines,AsPC-1 and CFPAC-1 were used for the *** influx and mitochondrial reactive oxygen species(ROS)were observed by fluorescence *** in enzyme levels,as well as PAR accumulation and energy metabolism,were measured using assay ***-dependent cell death was investigated followed by confirming in vivo anticancer effects by sustained calcium *** Mitochondrial ROS levels were elevated with increasing calcium influx into pancreatic cancer ***,excess PAR accumulation,decreased PAR glycohydrolase and ADP-ribosyl hydrolase 3 levels,and energy deprivation were *** vitro and in vivo antitumor effects were confirmed to accompany elevated AIF *** This study visualized the potential anticancer effects of excessive PAR accumulation by sustained calcium supply on pancreatic cancer,however elucidating a clear mode of action remains a challenge,and it should be accompanied by further studies to assess its potential for clinical application.

关键词： Pancreatic cancer Calcium Reactive oxygen species Poly adenosine diphosphate-ribose Poly adenosine diphosphate-ribosylation Poly adenosine diphosphate-ribose polymerase Apoptosis-inducing factor Nicotinamide adenine dinucleotide Anticancer effect

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Silver nanoislands on cellulose fibers for chromatographic separation and ultrasensitive detection of small molecules

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Light(Science & Applications) 2016年第1期5卷 796-802页

作者： Hyukjin Jung Moonseong park minhee Kang Ki-Hun Jeong Department of Bio and Brain Engineering KAIST Institute for Optical Science and TechnologyKorea Advanced Institute of Science and Technology291 Daehak-roYuseong-guDaejeon 305-701Korea

High-throughput small-molecule assays play essential roles in biomedical diagnosis,drug discovery,environmental analysis,and physiological function *** holds a great potential for the label-free detection of small molecules at extremely low ***,we report the development of nanoplasmonic paper(NP-paper)for the rapid separation and ultrasensitive detection of mixed small ***-paper employs nanogap-rich silver nanoislands on cellulose fibers,which were simply fabricated at the wafer level by using low-temperature solid-state dewetting of a thin silver *** nanoplasmonic detection allows for the scalable quantification and identification of small molecules over broad concentration ***,the combination of chromatographic separation and nanoplasmonic detection allows both the highly sensitive fluorescence detection of mixed small molecules at the attogram level and the label-free detection at the sub-nanogram level based on surface-enhanced Raman *** novel material provides a new diagnostic platform for the high-throughput,low-cost,and label-free screening of mixed small molecules as an alternative to conventional paper chromatography.

关键词： nanoplasmonics paper chromatography plasmon-enhanced spectroscopy silver nanoislands small-molecule assay

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Two Types of Diurnal Variations in Heavy Rainfall during July over Korea

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Advances in Atmospheric Sciences 2021年第12期38卷 2201-2211页

作者： Chang-Kyun park minhee CHANG Chang-Hoi HO Kyung-Ja HA Jinwon KIM Byung-Ju SOHN School of Earth and Environmental Sciences Seoul National UniversitySeoul 08826Korea School of Earth and Environmental Systems Pusan National UniversityBusan 46241Korea Center for Climate Physics Institute for Basic ScienceBusan 46241Korea National Institute of Meteorological Sciences Korean Meteorological AdministrationJeju 63568Korea

This study examined the characteristics of the diurnal variations of heavy rainfall(≥110 mm in 12 hours)in Korea and the related atmospheric circulation for July from 1980−*** the analysis period,two dominant pattens of diurnal variation of the heavy rainfall emerged:all-day heavy rainfall(AD)and morning only heavy rainfall(MO)*** the AD-type,the heavy rainfall is caused by abundant moisture content in conjunction with active convection in the morning(0000−1200,LST;LST=UTC+9)and the afternoon hours(1200−2400 LST).These systems are related to the enhanced moisture inflow and upward motion induced by the strengthening of the western North Pacific subtropical high and upper-tropospheric *** the MO-type,heavy rainfall occurs mostly in the morning hours;the associated atmospheric patterns are similar to the *** find that the atmospheric pattern related to severe heavy rainfalls in 2020 corresponds to a typical AD-type and resembles the 1991 heavy-rainfall system in its overall synoptic/mesoscale *** present results imply that extremely heavy rainfall episodes in Korea during the 2020 summer may occur again in the future associated with the recurring atmospheric phenomenon related to the heavy rainfall.

关键词： heavy rainfall diurnal cycle of rainfall 2020 summer summer rainy season Korea

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Rapid species identification of pathogenic bacteria from a minute quantity exploiting three-dimensional quantitative phase imaging and artificial neural network

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Light(Science & Applications) 2022年第7期11卷 1595-1606页

作者： Geon Kim Daewoong Ahn minhee Kang Jinho park DongHun Ryu YoungJu Jo Jinyeop Song Jea Sung Ryu Gunho Choi Hyun Jung Chung Kyuseok Kim Doo Ryeon Chung In Young Yoo Hee Jae Huh Hyun-seok Min Nam Yong Lee YongKeun park Department of Physics Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea KAIST Institute for Health Science and Technology KAISTDaejeon 34141Republic of Korea Tomocube Inc. Daejeon 34109Republic of Korea Smart Healthcare&Device Research Center Samsung Medical CenterSungkyunkwan University School of MedicineSeoul 06351Republic of Korea Graduate School of Nanoscience and Technology Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Department of Biological Sciences Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Department of Emergency Medicine Bundang CHA HospitalSeongnam-siGyeonggi-Do 13496Korea Division of Infectious Diseases Department of Internal MedicineSamsung Medical CenterSungkyunkwan University School of MedicineSeoul 06351Republic of Korea Department of Laboratory Medicine Seoul St.Mary's HospitalCollege of MedicineThe Catholic University of KoreaSeoul 06591Republic of Korea Department of Laboratory Medicine and Genetics Samsung Medical CenterSungkyunkwan University School of MedicineSeoul 06351Republic of Korea Department of Applied Physics Stanford UniversityStanfordCA 94305USA Department of Physics Massachusetts Institute of TechnologyCambridgeMA 02139USA

The healthcare industry is in dire need of rapid microbial identification techniques for treating microbial *** infections are a major healthcare issue worldwide,as these widespread diseases often develop into deadly *** studies have shown that an early appropriate antibiotic treatment significantly reduces the mortality of an infection,this effective treatment is difficult to *** main obstacle to early appropriate antibiotic treatments is the long turnaround time of the routine microbial identification,which includes time-consuming sample ***,we propose a microscopy-based framework that identifies the pathogen from single to few *** framework obtains and exploits the morphology of the limited sample by incorporating three-dimensional quantitative phase imaging and an artificial neural *** demonstrate the identification of 19 bacterial species that cause bloodstream infections,achieving an accuracy of 82.5%from an individual bacterial cell or *** performance,comparable to that of the gold standard mass spectroscopy under a sufficient amount of sample,underpins the effectiveness of our framework in clinical ***,our accuracy increases with multiple measurements,reaching 99.9%with seven different measurements of cells or *** believe that our framework can serve as a beneficial advisory tool for clinicians during the initial treatment of infections.

关键词： artificial neural exploit

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RUFY4 deletion prevents pathological bone loss by blocking endo-lysosomal trafficking of osteoclasts

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Bone Research 2024年第2期12卷 407-420页

作者： minhee Kim Jin Hee park Miyeon Go Nawon Lee Jeongin Seo Hana Lee Doyong Kim Hyunil Ha Taesoo Kim Myeong Seon Jeong Suree Kim Taesoo Kim Han Sung Kim Dongmin Kang Hyunbo Shim Soo Young Lee Department of Life Science Ewha Womans UniversitySeoul 03760South Korea The Research Center for Cellular Homeostasis Ewha Womans UniversitySeoul 03760South Korea Department of Biomedical Engineering Yonsei UniversityWonju 26493South Korea KM Convergence Research Division Korea Institute of Oriental MedicineDaejeon 34054South Korea Chuncheon Center Korea Basic Science InstituteChuncheon 24341South Korea Fluorescence Core Imaging Center and Bioimaging Data Curation Center Ewha Womans UniversitySeoul 03760South Korea Multitasking Macrophage Research Center Ewha Womans UniversitySeoul 03760South Korea

Mature osteoclasts degrade bone matrix by exocytosis of active proteases from secretory lysosomes through a ruffled ***,the molecular mechanisms underlying lysosomal trafficking and secretion in osteoclasts remain largely ***,we show with GeneChip analysis that RUN and FYVE domain-containing protein 4(RUFY4)is strongly upregulated during *** lacking Rufy4 exhibited a high trabecular bone mass phenotype with abnormalities in osteoclast function in ***,deleting Rufy4 did not affect osteoclast differentiation,but inhibited bone-resorbing activity due to disruption in the acidic maturation of secondary lysosomes,their trafficking to the membrane,and their secretion of cathepsin K into the extracellular ***,RUFY4 promotes late endosome-lysosome fusion by acting as an adaptor protein between Rab7 on late endosomes and LAMP2 on primary ***,Rufy4-deficient mice were highly protected from lipopolysaccharide-and ovariectomy-induced bone ***,RUFY4 plays as a new regulator in osteoclast activity by mediating endo-lysosomal trafficking and have a potential to be specific target for therapies against bone-loss diseases such as osteoporosis.

关键词： osteoclast inhibited traffic

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