| 2 | LDHA Desuccinylase Sirtuin 5 as A Novel Cancer Metastatic Stimulator in Aggressive Prostate Cancer显示文摘Prostate cancer(PCa)is the most commonly diagnosed genital cancer in men worldwide.Around 80%of the patients who developed advanced PCa suffered from bone metastasis,with a sharp drop in the survival rate.Despite great efforts,the detailed mechanisms underlying castration-resistant PCa(CRPC)remain unclear.Sirtuin 5(SIRT5),an NAD+-dependent desuccinylase,is hypothesized to be a key regulator of various cancers.However,compared to other SIRTs,the role of SIRT5 in cancer has not been extensively studied.Here,we revealed significantly decreased SIRT5 levels in aggressive PCa cells relative to the PCa stages.The correlation between the decrease in the SIRT5 level and the patient’s reduced survival rate was also confirmed.Using quantitative global succinylome analysis,we characterized a significant increase in the succinylation at lysine 118(K118su)of lactate dehydrogenase A(LDHA),which plays a role in increasing LDH activity.As a substrate of SIRT5,LDHA-K118su significantly increased the migration and invasion of PCa cells and LDH activity in PCa patients.This study reveals the reduction of SIRT5 protein expression and LDHA-K118su as a novel mechanism involved in PCa progression,which could serve as a new target to prevent CPRC progression for PCa treatment. | Oh Kwang Kwon In Hyuk Bang So Young Choi Ju Mi Jeon Ann-Yae Na Yan Gao Sam Seok Cho Sung Hwan Ki Youngshik Choe Jun Nyung Lee Yun-Sok Ha Eun Ju Bae Tae Gyun Kwon Byung-Hyun Park Sangkyu Lee | 2023 | Genomics, Proteomics & Bioinformatics2023，21，1： | 0 |
| 3 | Comparison of linac-based fractionated stereotactic radiotherapy and tomotherapy treatment plans for intra-cranial tumors显示文摘This study compares and analyzes stereotactic radiotherapy using tomotherapy and linac-based fractionated stereotactic radiotherapy in the treatment of intra-cranial tumors,according to some cases.In this study,linac-based fractionated stereotactic radiotherapy and tomotherapy treatment were administered to five patients diagnosed with intra-cranial cancer in which the dose of 18–20 Gy was applied on 3–5 separate occasions.The tumor dosing was decided by evaluating the inhomogeneous index (II) and conformity index (CI).Also,the radiation-sensitive tissue was evaluated using low dose factors V1,V2,V3,V4,V5,and V10,as well as the non-irradiation ratio volume (NIV).The values of the II for each prescription dose in the linacbased non-coplanar radiotherapy plan and tomotherapy treatment plan were (0.125±0.113) and (0.090±0.180),respectively,and the values of the CI were (0.899±0.149) and (0.917±0.114),respectively.The low dose areas,V1,V2,V3,V4,V5,and V10,in radiation-sensitive tissues in the linac-based non-coplanar radiotherapy plan fell into the ranges 0.3%–95.6%,0.1%–87.6%,0.1%–78.8%,38.8%–69.9%,26.6%–65.2%,and 4.2%–39.7%,respectively,and the tomotherapy treatment plan had ranges of 13.6%–100%,3.5%–100%,0.4%–94.9%,0.2%– 82.2%,0.1%–78.5%,and 0.3%–46.3%,respectively.Regarding the NIV for each organ,it is possible to obtain similar values except for the irradiation area of the brain stem.The percentages of NIV10%,NIV20%,and NIV30%for the brain stem in each patient were 15%–99.8%,33.4%–100%,and 39.8%–100%,respectively,in the fractionated stereotactic treatment plan and 44.2%–96.5%,77.7%–99.8%,and 87.8%–100%,respectively,in the tomotherapy treatment plan.In order to achieve higher-quality treatment of intra-cranial tumors,treatment plans should be tailored according to the isodose target volume,inhomogeneous index,conformity index,position of the tumor upon fractionated stereotactic radiosurgery,and radiation dosage for radiation-sensitive tissues. | Jang Bo Shim Suk Lee Sam Ju Cho Sang Hoon Lee Juree Kim Kwang Hwan Cho Chul Kee Min Hyun Do Huh Rena Lee Dae Sik Yang Young Je Park Won Seob Yoon Chul Yong Kim Soo Il Kwon | 2010 | Chinese Physics C2010，34，11： | 0 |
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