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Zhang B, Zhou J, Wu S, Guo M, Zhang Y, Liu R. The impact of surgical margin status on prostate cancer-specific mortality after radical prostatectomy: a systematic review and meta-analysis. Clin Transl Oncol 2020; 22:2087-2096. [DOI: 10.1007/s12094-020-02358-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 04/28/2020] [Indexed: 12/21/2022]
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Li J, Han Q, Liu R, Wen P, Ji W, Pan L, Wang C, Zhao P, Liu H, Bao J. Effects of environment and breed on growth performance and meat quality of fattening pigs. Anim Welf 2020. [DOI: 10.7120/09627286.29.2.177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Meat quality is not only influenced by breed but also rearing environment. The aim of this study was to evaluate the influence of different housing environments on growth performance, carcase traits, meat quality, physiological response pre-slaughter and fatty acid composition in two
pig breeds. A total of 120 growing pigs at 60–70 days of age were arranged in a 2 × 2 factorial design with the breeds (Duroc × Landrace × Large White [D × L × LW] and Duroc × Landrace × Min pig [D × L × M]) and environmental enrichment
(barren concrete floor or enriched with straw bedding) as factors. Each treatment was performed in triplicate with ten pigs per replicate. The pigs housed in the enriched environment exhibited a higher average daily gain, average daily feed intake, saturated fatty acid percentage and backfat
depth than the pigs reared in the barren environment. Plasma cortisol levels were lower and growth hormone higher in enriched compared to barren pens. The D × L × M pigs showed lower cooking loss compared with the D × L × LW pigs. Moreover, the D × L × M
pigs exhibited poor growth performance but had a better water-holding capacity. Only carcase traits and meat quality interaction effects were observed. We concluded that an enriched environment can reduce pre- slaughter stress and improve the growth performance of pigs and modulate the fatty
acid composition of pork products.
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Chen J, Shan Y, Wang Q, Zhu J, Liu R. P-type laser-doped WSe 2/MoTe 2 van der Waals heterostructure photodetector. NANOTECHNOLOGY 2020; 31:295201. [PMID: 32268302 DOI: 10.1088/1361-6528/ab87cd] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Van der Waals heterostructures (vdWHs) based on two-dimensional (2D) materials are being studied extensively for their prospective applications in photodetectors. As the pristine WSe2/MoTe2 heterostructure is a type I (straddling gap) structure, it cannot be used as a photovoltaic device theoretically, although both WSe2 and MoTe2 have excellent photoelectric properties. The Fermi level of p-doped WSe2 is close to its valence band. The p-doped WSe2/MoTe2 heterostructure can perform as a photovoltaic device because a built-in electric field appears at the interface between MoTe2 and p-doped WSe2. Here, a 633 nm laser was used for scanning the surface of WSe2 in order to obtain the p-doped WSe2. x-ray photoelectron spectroscopy (XPS) and electrical measurements verified that p-type doping in WSe2 is produced through laser treatment. The p-type doping in WSe2 includes substoichiometric WOx and nonstoichiometric WSex. A photovoltaic device using p-doped WSe2 and MoTe2 was successfully fabricated. The band structure, light-matter reactions, and carrier-transport in the p-doped WSe2/MoTe2 heterojunction were analyzed. The results showed that this photodetector has an on/off ratio of ≈104, dark current of ≈1 pA, and response time of 72 μs under the illumination of 633 nm laser at zero bias (V ds = 0 V). The proposed p-doping method may provide a new approach to improve the performance of nanoscale optoelectronic devices.
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Chou S, Chang ZY, Zhao GD, Song DD, Zhang X, Hu MG, Liu R. [Robotic hilar cholangiocarcinoma radical resection compared with laparotomy in prognosis]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 2020; 58:230-234. [PMID: 32187928 DOI: 10.3760/cma.j.issn.0529-5815.2020.03.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the long term and short term outcomes between robotic and open surgery for hilar cholangiocarcinoma radical resection. Methods: This is a single-center and retrospective case-control study. Patients underwent hilar cholangiocarcinoma radical resection between January 2016 and December 2016 at Department of Hepatobiliary Surgery of the General Hospital of the Chinese People's Liberation Army were included. Safety, effectiveness and long-term prognosis of tumors were evaluated. Patients were divided into robotic hilar cholangiocarcinoma radical surgery group (robotic group, n=16) and open hepatic hilar cholangiocarcinoma radical surgery group (open group, n=31) . All cases were confirmed by pathology histological. Age, gender, histology, resection margin status, extent of surgical resection, disease-free survival (DFS) , and overall survival (OS) were retrospectively collected and analyzed.In the follow-up cohort, the primary outcome was patient death and the secondary outcome was tumor recurrence. Continuous variables were expressed as means and medians and were compared using the Student t test if normally distributed or Wilcoxon-Mann-Whitney test for nonparametric variables. Discrete variables were expressed as frequency and percentages and χ(2) or Fisher exact test, when appropriate, were used for comparisons. Kaplan-Meier curves were used to calculate the probability of survival and comparisons were performed using log-rank test. Results: In this study, compared with the open group, the robotic group had a longer operation time ( (338±71) minutes vs. (256±56) minutes, t=4.251, P=0.001) , but the intraoperative blood loss was less (100 ml vs. 200 ml, Z=121.50, P=0.040) , the gastric tube removal time was earlier (3 days vs. 4 days, Z=136.0, P=0.011) , and the postoperative hospital stay was shorter (9 days vs. 12 days, Z=144.50, P=0.040) , and the difference was statistically significant.There was no significant difference in the blood transfusion rate, R0 resection rate, and tumor size between the two groups.The recurrence rates in the robotic group and open surgery were 53.3% and 67.0%, respectively (χ(2)=1.04, P=0.307) .The median survival time of the robotic group and the open group was 22.0 months and 25.0 months. There was no significant difference in the overall survival rate between the two groups (P>0.05) . Conclusion: Compared with laparotomy, robotic HCC radical resection could have an equivalence or non-inferiority approach with acceptable long-term outcome.
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Wang WH, Qiu L, Sa RN, Hu ZP, Liu R, Wu M, Liu F, Zhang TH. [Analysis of trends on smoking prevalence and its risk factors in Shaanxi province 2007-2015]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2020; 41:395-399. [PMID: 32294842 DOI: 10.3760/cma.j.issn.0254-6450.2020.03.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To analyze the trend of smoking prevalence and its risk factors among adults in Shaanxi province from 2007 to 2015. Methods: We used data from China Chronic Disease and Risk Factor Surveillance in 2007, 2010, 2013 and 2015. The current smoking prevalence and trends of the four surveys were calculated. Its risk factors were analyzed by multivariate logistic regression from each survey and then from all pooled data of the three surveys. Results: The number of participants in 2007, 2010, 2013 and 2015 was 1 542, 3 000, 10 166 and 6 330, respectively. The current smoking prevalence dropped from 34.34% in 2007 to 26.22% in 2013, but increased to 28.33% in 2015 (trend χ(2) test: Z=2.53, P=0.01). The results from four pooled data showed that the current smoking prevalence of men was higher than that of women (OR=75.03, 95%CI: 63.57-88.55). The current smoking prevalence of people aged 45-59 was higher than that of people aged 18-44 (OR=1.28, 95%CI: 1.15-1.41). In addition, the current smoking prevalence of those who were educated for 7-9 years and more than 9 years were higher than those who were educated for less than 6 years (people with education for 7-9 years OR=1.44, 95%CI: 1.29-1.61; people with education >9 years OR=1.43, 95%CI: 1.26-1.63). The current smoking prevalence of the single was lower than those of married/cohabitants (OR=0.54, 95%CI: 0.37-0.77). The current smoking prevalence of retirees were lower than those of employees (OR=0.46, 95%CI: 0.38-0.57) and smoking prevalence of alcohol drinkers were higher than those of non-drinkers (OR=2.92, 95%CI: 2.67-3.19). Conclusion: From 2007 to 2015, the current smoking prevalence of Shaanxi population was high and the trends remained stable. It is necessary to strengthen smoking control and health education for men, people over 45 years old, people with education level 7 years and above, and working personnel in Shaanxi province.
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Liu R, Zhang XP. Comment on: Significance of the surgical hepatic resection margin in patients with a single hepatocellular carcinoma. Br J Surg 2020; 107:464-465. [PMID: 32129490 DOI: 10.1002/bjs.11496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 12/06/2019] [Indexed: 11/08/2022]
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Huang J, Molloy C, Liu R. 4:12 PM Abstract No. 125 The impact of physician exposure to organized political advocacy in the Society of Interventional Radiology. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Kutsenko O, Liu R, Borror W, Heiberger C, Wazen J, Bundy J, Koroma M, Holly B, Buckalew J, Huang J. 4:03 PM Abstract No. 124 Stop the bleeding: What interventional radiologists need to know about the Medicare physician fee schedule cut. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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134
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Huhn SC, Ou Y, Kumar A, Liu R, Du Z. High throughput, efficacious gene editing & genome surveillance in Chinese hamster ovary cells. PLoS One 2019; 14:e0218653. [PMID: 31856197 PMCID: PMC6922373 DOI: 10.1371/journal.pone.0218653] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 06/06/2019] [Indexed: 12/26/2022] Open
Abstract
Chinese hamster ovary (CHO) cells are a common tool utilized in bioproduction and directed genome engineering of CHO cells is of great interest to enhance recombinant cell lines. Until recently, this focus has been challenged by a lack of efficacious, high throughput, and low-cost gene editing modalities and screening methods. In this work, we demonstrate an improved method for gene editing in CHO cells using CRISPR RNPs and characterize the endpoints of Cas9 and ZFN mediated genetic engineering. Furthermore, we validate sequence decomposition as a cost effective, rapid, and accurate method for assessing mutants and eliminating non-clonal CHO populations using only capillary sequencing.
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Wang Z, Li Y, Fan L, Zhao Q, Tan B, Liu R, Li F. Silencing of TPD52 inhibits proliferation, migration, invasion but induces apoptosis of pancreatic cancer cells by deactivating Akt pathway. Neoplasma 2019; 67:277-285. [PMID: 31847526 DOI: 10.4149/neo_2019_190404n295] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 07/02/2019] [Indexed: 11/08/2022]
Abstract
Pancreatic cancer (PC) is a complex and multifactorial human malignancy with a low survival rate. Tumor protein D52 (TPD52) was abnormally expressed in several cancers and participated in tumorigenesis. However, the oncogenic effect of TPD52 on PC remains unknown. In the present study, after transfecting AsPC-1 and PANC-1 cells with NC or sh-TPD52, the CCK-8 assay, Hoechst staining, western blot, transwell assay, flow cytometry were used to examine the cell proliferation, migration, invasion and apoptosis. qRT-PCR results confirmed that the expression of TPD52 was significantly increased in PC cells, especially AsPC-1 and PANC-1 cells. The present study revealed that silencing of TPD52 significantly suppressed the proliferation, migration and invasion, but induced apoptosis of AsPC-1 and PANC-1 cells in vitro by dephosphorylating Akt at Ser473. Conversely, SC79, an Akt activator, could partially reverse the anti-metastatic effects of sh-TPD52, accompanied by the reactivating of Akt pathway. Additional in vivo studies are warranted to elucidate that knockdown of TPD52 could inhibit tumor growth in PC mice models. These findings suggested that TPD52 might be a novel therapeutic target for PC treatment.
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Wang WH, Sa RN, Qiu L, Hu ZP, Liu R, Wu M, Liu F, Dang SN. [Analysis on chronic diseases and risk factors of adult residents in Shaanxi province]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2019; 40:1585-1589. [PMID: 32062920 DOI: 10.3760/cma.j.issn.0254-6450.2019.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the prevalence of chronic diseases and related risk factors in Shaanxi province. Methods: Multi-stage stratified cluster random sampling was used to collect the sample from permanent residents in 10 national surveillance points in Shaanxi province in 2015. Behavioral risk factors (smoking, drinking, diet and physical activity) were investigated by face-to-face interviews and biological risk factors (BMI, blood pressure, blood glucose and blood lipid) were collected by physical measurements and laboratory tests. Designed weight, no response weight and post hierarchical weight were taken into account in the data analysis. Binary logistic regression models were used to examine the pair-wise associations among 8 risk factors. Results: A total of 6 174 persons were included in the analysis. The following weighted prevalence were noticed in Shaanxi province in 2015, that including current smoking as 28.19%, harmful use of alcohol as 6.20%, inadequate intake of vegetables and fruits as 55.62%, physical inactivity as 19.56%, overweight and obesity as 46.82%, hypertension as 31.12%, raised fasting blood glucose as 4.27%, and raised total cholesterol as 20.96%. Eight risk factors were found to be associated with each other. The mean numbers of risk factors were 2.41 per male and 1.85 per female, 1.94 per urban resident and 2.28 per rural resident. Conclusions: Risk factors for chronic diseases among adults aged 18 or older were more than the national levels in Shaanxi province in 2015. Male and rural residents presented more risk factors than their counterparts. Correlations between risk factors implied that a combined package of interventions was needed to reduce these risk factors.
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Ou Q, Lin D, Yu Y, Li A, Zhang W, Chen Y, Liu R, Tan Y, Xu M, Li L, Yao H. Association of MUC16 mutation with survival of immune checkpoint inhibitor in patients with cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz452.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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138
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Yu Y, Zhang W, Li A, Chen Y, Wang Y, Zhang Y, He Z, Ou Q, Liu R, Song E, Yao H. Association of long non-coding RNA biomarkers with clinically immune subtype and prediction of immunotherapy in patients with cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz452.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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139
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Li A, Lin D, Yu Y, Gu Y, Ou Q, Zhang W, Chen Y, Liu R, Tan Y, Xu H, Li L, Yao H. Association of PTPRT mutation with survival of immune checkpoint inhibitor in patients with cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz452.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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140
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Liu R, Chan M, McWilliams S, Xiao K, Kuo C, Bu Y, Klösch G, Ipsiroglu O. Communicating sleep health with a vigilance toolbox: Review of the clinical test “Task-switching paradigm” as a possible “Vigilance game”. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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141
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Yang CH, Zhang XY, Zhou LN, Wan Y, Song LL, Gu WL, Liu R, Ma YN, Meng HR, Tian YL, Zhang Y. LncRNA SNHG8 participates in the development of endometrial carcinoma through regulating c-MET expression by miR-152. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2019; 22:1629-1637. [PMID: 29630089 DOI: 10.26355/eurrev_201803_14698] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the possible function and mechanism of lncRNA SNHG8 in the pathogenesis of endometrial carcinoma. PATIENTS AND METHODS We utilized qRT-PCR to detect the expression of SNHG8 in 60 cases of endometrial carcinoma and 25 cases of normal endometrium; after that, the endometrial carcinoma cell lines were screened. SNHG8 was transfected into endometrial carcinoma cells by Lipofectamine and the proliferative activity of cells was detected by cell counting kit-8 (CCK-8) assay. Bioinformatics methods were used to detect the target microRNA. miR-152 is predicted to bind to SNHG8 and target genes of c-MET. Luciferase reporter assay was performed to detect the relative luciferase activity between miR-152 and c-MET, SNHG8. The interactions between SNHG8, miR-152, and c-MET were further verified by transfection of miR-152 mimics, miR-152 mimics + OE-SNHG8, SNHG8 siRNA, and SNHG8 siRNA + miR-152 inhibitor. RESULTS SNHG8 expression in endometrial carcinoma tissue was significantly higher than that in normal endometrium. After transfection with SNHG8 siRNA, the cell viability of AN3CA cells decreased, whereas the activity of Ishikawa was increased after transfection with SNHG8 overexpression plasmid. Bioinformatics predictions and dual luciferase reporter assay illustrated that SNHG8 was bound to miR-152 and miR-152 targeted on c-MET. In addition, miR-152 mimics inhibited the expression of c-MET, and the inhibitory effect was reversed after SNHG8 overexpression. Silencing SNHG8 reduced c-MET expression, and c-MET expression was reversed after addition of miR-152 inhibitor. CONCLUSIONS SNHG8 is highly expressed in endometrial carcinoma, and SNHG8 targets c-MET through miR-152 to regulate the proliferation of endometrial cancer cells.
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Liu R, Zhang HB, Yang J, Wang JR, Liu JX, Li CL. Curcumin alleviates isoproterenol-induced cardiac hypertrophy and fibrosis through inhibition of autophagy and activation of mTOR. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2019; 22:7500-7508. [PMID: 30468499 DOI: 10.26355/eurrev_201811_16291] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Curcumin has been reported to possess cardioprotective effects. However, the potential molecular mechanism of curcumin is still not clear. The aim of the present study was to investigate the role of curcumin in regulating autophagy and mammalian target of rapamycin (mTOR) signaling in isoproterenol-induced cardiac hypertrophy and fibrosis in the rat. MATERIALS AND METHODS Rats model of cardiac hypertrophy and fibrosis was induced by isoprenaline (5 mg/kg/day, subcutaneous injection), which were treated with or without curcumin (200 mg/kg/day, intragastric administration). Masson's trichrome staining was performed to investigate the effect of curcumin on fibrosis of cardiac hypertrophy rat. The expression of hypertrophic and fibrosis markers was determined by RT-qPCR. The protein expression of autophagic markers, mTOR, and phosphorylated-mTOR (p-mTOR) was performed by Western blotting. RESULTS Isoprenaline treatment significantly up-regulated the mRNA expression of hypertrophic (ANP and MYH7) and fibrotic (procollagen I and III) markers in the hearts from rats. All of these markers were reversed by curcumin treatment in isoproterenol-treated rats. Histological analysis showed that curcumin attenuated the interstitial fibrosis of heart triggered by isoproterenol. Moreover, isoproterenol significantly reduced the mRNA levels of mTOR and the protein expression of p-mTOR. However, isoprenaline caused a significant induction of the mRNA levels of LC3 and Beclin-1 and the protein expression of LC3-II and Beclin-1, as well as LC3-II/I ratio. Curcumin abolished these isoprenaline-mediated changes in mTOR/autophagy signaling pathway. CONCLUSIONS Our data demonstrated that curcumin targeted mTOR/autophagy axis could attenuate cardiac hypertrophy and fibrosis in a rat model.
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Muneyyirci-Delale O, Archer DF, Kim JHJ, Liu R, Owens C, Puscheck E. Phase 3 Trial Results: Efficacy and Safety of Elagolix in a Subset of Women with Uterine Fibroids and Adenomyosis. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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144
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Wang R, Zhang L, Liu R, Liu L, Yao J. Ultra-fast and probe-free cellulose biosensor for visual detection of Cu2+ ions in biological samples. Carbohydr Polym 2019; 223:115117. [DOI: 10.1016/j.carbpol.2019.115117] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/02/2019] [Accepted: 07/21/2019] [Indexed: 11/30/2022]
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145
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Al-Hendy A, Simon J, Hurtado S, Bradley LD, Owens C, Liu R, Barnhart K, Gillispie V. Effect of Fibroid Location and Size on Efficacy of Elagolix: Results from Phase 3 Clinical Trials. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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146
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Liu XD, Wu H, Li Y, Liu X, Zhang Z, Yu L, Qin Z, Su Z, Liu R, He Q, Dai M, Liang Z. Early detection of pancreatic ductal adenocarcinoma using methylation signatures in circulating tumour DNA. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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147
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Zhang P, Tu L, Liu R, Xu X, Bao Z, Xu P, Wang J, Li H, Zhou J, Wang Y. P1.01-106 Clinical Features and Tumor Immune Microenvironment Related to Acquired Resistance to EGFR-TKI in NSCLC Patients with EGFR Mutation. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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148
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Hong S, Li J, Cheng L, Yu S, Zhang Z, Lin B, Su Z, Ke Z, Liu R, Peng S, Li Q, Zhang Q, Guo Z, Lv W, Xiao H. Classification of thyroid nodule using DNA methylation profiling on tissue and circulating tumor DNA. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz267.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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149
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Li H, Xu J, shao B, Liu R, ran R, Song G, Jiang H, Wang K, Shi Y, Liu J, Hu W, Chen F, Zhang G, Wang Y, Zhao C, Ru J, wang Q, Rugo H, Li G. Phase I dose-escalation and expansion study of the PARP inhibitor, fluzoparib (SHR3162), in patients with advanced solid tumours. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz242.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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150
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Liu R, Zhao X, Guo W, Huang M, Qiu L, Zhang W, Zhang Z, Li W, Zhu X, Chen Z. Dynamic monitoring of HER2 amplification in circulating DNA of patients with metastatic colorectal cancer treated with cetuximab. Clin Transl Oncol 2019; 22:928-934. [PMID: 31571151 DOI: 10.1007/s12094-019-02215-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 09/13/2019] [Indexed: 12/27/2022]
Abstract
PURPOSE Cetuximab (CTX) has been used to treat metastatic colorectal cancer (mCRC) with wild-type (wt) RAS and BRAF genes. Meanwhile HER2 amplification reportedly denoted CTX-resistant mCRC tumors. We investigated whether monitoring of HER2 amplification in circulating DNA allowed early detection of mCRC progression and CTX resistance. METHODS mCRC, who progressed after CTX treatments between July 2015 and January 2018. RESULTS Of the 36 patients, 5 (13.9%) exhibited dynamic fluctuations of HER2 amplification in plasma in the course of CTX treatment, of whom 2 were positive for HER2 amplification in matched tumor specimens at baseline (per FISH). All 5 primary sites were left side: 3 rectums and 2 descending colon. HER2 ratio fluctuations in circulating DNA not only reflected changes in tumor volume, but their obvious increases presaged CT-documented progress by an average lead time of 2 months. Interestingly, progression-free survival did not significantly differ between these 5 patients and those without HER2 amplification (HR 1.06, 95% CI 0.40-2.77, P = 0.909). CONCLUSION Plasma HER2 amplification detected by ddPCR changed over time and predicted resistance to CTX, by an average lead time of 2 months. Further study is needed to validate our findings.
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