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Carding P, Bos-Clark M, Fu S, Gillivan-Murphy P, Jones S, Walton C. Evaluating the efficacy of voice therapy for functional, organic and neurological voice disorders. Clin Otolaryngol 2016; 42:201-217. [DOI: 10.1111/coa.12765] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/05/2016] [Indexed: 11/28/2022]
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Che S, Xi R, Pan S, Chen X, Hui B, Fu S, Guo J, Zhang X. HPV16 E6-E7 Induces Cancer Stem-like Cell Phenotypes and Chemoradioresistance in Esophageal Squamous Cell Carcinoma Through Activation of PI3K/Akt Signaling Pathway. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zhou LZ, Fu S, Gao SQ, He GW. [Determination of trace gallium by graphite furnace atomic absorption spectrometry in urine]. ZHONGHUA LAO DONG WEI SHENG ZHI YE BING ZA ZHI = ZHONGHUA LAODONG WEISHENG ZHIYEBING ZAZHI = CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES 2016; 34:465-467. [PMID: 27514562 DOI: 10.3760/cma.j.issn.1001-9391.2016.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To establish a method for determination trace gallium in urine by graphite furnace atomic absorption spectrometry (GFAAS). METHODS The ammonium dihydrogen phosphate was matrix modifier. The temperature effect about pyrolysis (Tpyr) and atomization temperature were optimized for determination of trace gallium. The method of technical standard about within-run, between-run and recoveries of standard were optimized. RESULTS The method showed a linear relationship within the range of 0.20~80.00 μg/L (r=0.998). The within-run and between-run relative standard deviations (RSD) of repetitive measurement at 5.0, 10.0, 20.0 μg/L concentration levels were 2.1%~5.5% and 2.3%~3.0%. The detection limit was 0.06 μg/L. The recoveries of gallium were 98.2%~101.1%. CONCLUSION This method is simple, low detection limit, accurate, reliable and reproducible. It has been applied for determination of trace gallium in urine samples those who need occupation health examination or poisoning diagnosis.
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Fu S, Li LN, Long ZC, Ke WD, Ye AH, Guo YH, Chen JM. Evaluation of the taxonomic status of water dropwort (Oenanthe, Apiaceae) accessions from East Asia based on nuclear rDNA internal transcribed spacer sequences. GENETICS AND MOLECULAR RESEARCH 2016; 15:gmr7363. [PMID: 27173234 DOI: 10.4238/gmr.15027363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Oenanthe L. is a taxonomically complex genus, several species of which have long been used as vegetables and traditional medicines in East Asia. In order to clarify the taxonomic status of Oenanthe accessions and provide baseline data for the sustainable use of its genetic resources, we examined sequence variations in the internal transcribed spacer (ITS) region of Oenanthe accessions collected from a wide geographical area in China and its neighboring countries. For comparison, ITS sequences in GenBank for almost all currently reported species of Oenanthe were also included in our analyses. Both phylogenetic tree construction methods (Bayesian inference and maximum likelihood) revealed that the accessions tended to cluster into two groups, which were closely related to O. mildbraedii and O. sarmentosa. However, these two species have never been recorded in China or its neighboring countries. Therefore, it seems probable that in our sampled locations, Oenanthe accessions have been given an incorrect name, such as O. javanica. Future studies should carefully check the morphological characteristics of other Oenanthe species and sequence their ITS regions in order to clarify the taxonomic status of the genus.
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Zhao Q, Guo Z, Deng W, Fu S, Zhang C, Chen M, Ju W, Wang D, He X. Calpain 2-mediated autophagy defect increases susceptibility of fatty livers to ischemia-reperfusion injury. Cell Death Dis 2016; 7:e2186. [PMID: 27077802 PMCID: PMC4855654 DOI: 10.1038/cddis.2016.66] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 02/24/2016] [Accepted: 02/26/2016] [Indexed: 12/17/2022]
Abstract
Hepatic steatosis is associated with significant morbidity and mortality after liver resection and transplantation. This study focuses on the role of autophagy in regulating sensitivity of fatty livers to ischemia and reperfusion (I/R) injury. Quantitative immunohistochemistry conducted on human liver allograft biopsies showed that, the reduction of autophagy markers LC3 and Beclin-1 at 1 h after reperfusion, was correlated with hepatic steatosis and poor survival of liver transplant recipients. In animal studies, western blotting and confocal imaging analysis associated the increase in sensitivity to I/R injury with low autophagy activity in fatty livers. Screening of autophagy-related proteins showed that Atg3 and Atg7 expression levels were marked decreased, whereas calpain 2 expression was upregulated during I/R in fatty livers. Calpain 2 inhibition or knockdown enhanced autophagy and suppressed cell death. Further point mutation experiments revealed that calpain 2 cleaved Atg3 and Atg7 at Atg3Δ92-97 and Atg7Δ344-349, respectively. In vivo and in vitro overexpression of Atg3 or Atg7 enhanced autophagy and suppressed cell death after I/R in fatty livers. Collectively, calpain 2-mediated degradation of Atg3 and Atg7 in fatty livers increases their sensitivity to I/R injury. Increasing autophagy may ameliorate fatty liver damage and represent a valuable method to expand the liver donor pool.
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Qin J, Fu S, Speake C, Greenbaum CJ, Odegard JM. NETosis-associated serum biomarkers are reduced in type 1 diabetes in association with neutrophil count. Clin Exp Immunol 2016; 184:318-22. [PMID: 26939803 DOI: 10.1111/cei.12783] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 02/08/2016] [Accepted: 02/20/2016] [Indexed: 12/20/2022] Open
Abstract
As the immune pathways involved in the pathogenesis of type 1 diabetes (T1D) are not fully understood, biomarkers implicating novel mechanisms of disease are of great interest and call for independent evaluation. Recently, it was reported that individuals with T1D display dramatic elevations in circulating components of neutrophil extracellular traps (NETs), indicating a potential role for NETosis in T1D. Our aim was to evaluate further the potential of NET-associated proteins as novel circulating biomarkers in T1D. We tested serum from subjects with T1D (n = 44) with a median age of 26·5 years and a median duration of 2·2 years, along with 38 age-matched controls. T1D subjects did not show elevations in either neutrophil elastase (NE) or proteinase 3 (PR3), as reported previously. In fact, both NE and PR3 levels were reduced significantly in T1D subjects, particularly in subjects within 3 years of diagnosis, consistent with the known reduction in neutrophil counts in recent-onset T1D. Indeed, levels of both NE and PR3 correlated with absolute neutrophil counts. Therefore, while not ruling out potential local or transient spikes in NETosis activity, the levels of these serum markers do not support a role for systemically elevated NETosis in the T1D population we studied. Rather, a modest reduction in these markers may reflect other important aspects of disease activity associated with reduced neutrophil numbers.
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Osman A, Tanaka N, Silver N, Kalu N, Patel A, Wang J, Tang L, Frederick M, Johnson F, Fu S, Myers J. A Regimen Combining the Wee1 Inhibitor AZD1775 With Histone Deacetylase Inhibitor Vorinostat is Highly Active Against Head and Neck Squamous Cell Carcinoma Harboring High-risk TP53 Mutations. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2015.12.258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Fu S, Tang H, Liao Y, Xu Q, Liu C, Deng Y, Wang J, Wang J, Fu X. Expression and clinical significance of insulin-like growth factor 1 in lung cancer tissues and perioperative circulation from patients with non-small-cell lung cancer. ACTA ACUST UNITED AC 2016; 23:12-9. [PMID: 26966399 DOI: 10.3747/co.23.2669] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE We explored the role of insulin-like growth factor 1 (igf-1) in the development of lung cancer. METHODS We used immunohistochemistry to measure the expression of igf-1 and igf-1 receptor (igf-1r) in specimens of tissue and perioperative circulation from 80 patients with primary non-small-cell lung cancer (nsclc) and from 45 patients with benign pulmonary lesions (bpls). Correlations of those measurements with clinicopathologic characteristics and clinical follow-up were analyzed. Circulating igf-1 was measured before and after surgery in all patients. RESULTS Compared with bpl specimens, nsclc specimens showed overexpression of igf-1and igf-1r (p < 0.001). The expression levels of igf-1 and igf-1r were significantly associated with advanced-stage disease (p = 0.034 and 0.029 respectively) and lymph node metastasis (p = 0.012 and 0.017 respectively), and expression of igf-1 correlated with tumour differentiation and tumour diameter (p = 0.011 and 0.021 respectively). Specimens positive for igf-1 or igf-1r were significantly correlated with shorter patient survival (p = 0.0012 and 0.0016 respectively). After surgery, circulating igf-1 was significantly elevated in patients with bpl (p = 0.0346) and significantly lower in patients with nsclc (p = 0.0030), especially in those with advanced-stage disease, a larger tumour size, regional lymphoid node metastasis, or lesser differentiation (p = 0.0092, 0.0051, 0.0131, and p < 0.001 respectively). CONCLUSIONS In nsclc, igf-1 and igf-1r are upregulated, and expression of those factors is correlated with tumour progression and prognosis in nsclc patients. Radical resection of nsclc can directly influence the serum concentration of igf-1. Autocrine/paracrine igf-1 might be playing an important role in the development of lung cancer.
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Welsh JL, Fu S, Liao J, Sugg SL, Scott-Conner CE, Weigel RJ, Erdahl LM, Lizarraga IM. Abstract P1-11-04: Long-term patient satisfaction with cosmetic outcome and psychosocial wellbeing after breast conserving therapy is affected only by lumpectomy volume. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p1-11-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Breast conserving therapy (BCT) is considered the treatment of choice for early stage breast cancer by National Cancer Institute guidelines. Little data exists on patient-reported satisfaction and quality of life outcomes after lumpectomy with radiation. This study aims to identify factors influencing satisfaction with cosmetic outcome and quality of life in patients receiving BCT using a validated instrument.
Methods: All patients treated with lumpectomy and radiation for breast cancer at our institution from 1997-2012 received a mailed questionnaire containing the BREAST-Q breast conservation module (graciously provided by Dr A. Pusic, Memorial Sloan Kettering Cancer Center), a validated quality of life survey instrument. A retrospective chart review was performed for survey responders for demographic, treatment, and staging information. Scores were calculated for satisfaction with appearance of the breast, adverse effects of radiation, sexual wellbeing, psychosocial wellbeing and physical wellbeing: upper body and arm. Pearson correlation coefficients were obtained. Wilcoxon rank-sum and one-way ANOVA were used to identify associations between patient variables and satisfaction scores. Multivariate regression was used to assess confounding variables.
Results: A total of 110 questionnaires (response rate of 29.5%) fit criteria for analysis. The mean age of respondents was 65.9±11.2 yrs, and mean time since diagnosis was 91.8±53.1 mos. We observed the strongest correlations between satisfaction with breast appearance and sexual wellbeing (r=0.66, p<0.01), breast appearance and psychosocial wellbeing (r=0.62, p<0.01), and fewer effects of radiation and physical wellbeing (r=0.65, p<0.01). Lumpectomy volume was associated with decreased satisfaction with breast appearance (r=-0.32, p <0.01) and psychosocial wellbeing (r=-0.19, p<0.05). There was no correlation between satisfaction with breast appearance and patient age, time since surgery, history of re-excision, stage or localization technique. Patients with older age at diagnosis reported significantly fewer effects of radiation and better psychosocial, physical, and sexual wellbeing (all p<0.05) (Table 1). The incidence of recurrence was 2.7% and did not impact satisfaction scores.
Distribution of Satisfaction/Quality of Life Outcomes by Age at Diagnosis Satisfaction/Quality of Life*AgeNBreastAdverse Effects of RadiationPsychosocialSexualPhysical<451458±2282±1973±1945±2074±1645-553264±2683±1980±2054±2579±1756-602667±1794±983±2370±1885±1361-651267±2989±2383±2053±2983±17>652670±2391±1288±1663±2588±25All11065±2388±1682±2058±2482±19P 0.1590.0190.0140.0300.002*Rasch scores range from 0-100 where 100 indicates highest satisfaction
Conclusions: In women undergoing BCT, patient satisfaction with appearance of the breast and psychosocial wellbeing at 7.6 years of follow-up correlated with the volume of tissue removed but no other patient or tumor characteristics. Increasing age at diagnosis was associated with greater satisfaction in multiple domains. These results emphasize the importance of precise surgical technique and patient selection in order to achieve long-term patient satisfaction with BCT.
Citation Format: Welsh JL, Fu S, Liao J, Sugg SL, Scott-Conner CE, Weigel RJ, Erdahl LM, Lizarraga IM. Long-term patient satisfaction with cosmetic outcome and psychosocial wellbeing after breast conserving therapy is affected only by lumpectomy volume. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P1-11-04.
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Abstract
Urine drug testing plays an important role in monitoring licit and illicit drug use for both medico-legal and clinical purposes. One of the major challenges of urine drug testing is adulteration, a practice involving manipulation of a urine specimen with chemical adulterants to produce a false negative test result. This problem is compounded by the number of easily obtained chemicals that can effectively adulterate a urine specimen. Common adulterants include some household chemicals such as hypochlorite bleach, laundry detergent, table salt, and toilet bowl cleaner and many commercial products such as UrinAid (glutaraldehyde), Stealth® (containing peroxidase and peroxide), Urine Luck (pyridinium chlorochromate, PCC), and Klear® (potassium nitrite) available through the Internet. These adulterants can invalidate a screening test result, a confirmatory test result, or both. To counteract urine adulteration, drug testing laboratories have developed a number of analytical methods to detect adulterants in a urine specimen. While these methods are useful in detecting urine adulteration when such activities are suspected, they do not reveal what types of drugs are being concealed. This is particularly the case when oxidizing urine adulterants are involved as these oxidants are capable of destroying drugs and their metabolites in urine, rendering the drug analytes undetectable by any testing technology. One promising approach to address this current limitation has been the use of unique oxidation products formed from reaction of drug analytes with oxidizing adulterants as markers for monitoring drug misuse and urine adulteration. This novel approach will ultimately improve the effectiveness of the current urine drug testing programs.
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Wu Q, Mao J, Wei C, Fu S, Law R, Ding L, Yu B, Jia B, Yang C. Hybrid BF–PSO and fuzzy support vector machine for diagnosis of fatigue status using EMG signal features. Neurocomputing 2016. [DOI: 10.1016/j.neucom.2015.06.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tang C, Naing A, de Groot P, Chang J, Massarelli E, Parkhurst K, Erdman D, Barrientes S, Fok J, Subbiah V, Fu S, Tsimberidou A, Karp D, Gomez D, Heymach J, Hahn S, Komaki R, Hong D, Welsh J. Phase 1 Study of Ipilimumab and Stereotactic Radiation Targeting Liver or Lung Lesions in Patients With Advanced Malignancies. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yuan H, Fu S, Tan W, He J, Wu K. Study on the hydrocyclonic separation of waste plastics with different density. WASTE MANAGEMENT (NEW YORK, N.Y.) 2015; 45:108-111. [PMID: 25736578 DOI: 10.1016/j.wasman.2015.01.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 01/22/2015] [Accepted: 01/25/2015] [Indexed: 06/04/2023]
Abstract
The recycling of waste plastics is an important aspect in the recycling of solid waste. Based on the difference in density, PET and PVC particles was separated with help of the centrifugal sedimentation and shearing dispersion in a hydrocyclone. Through tests and CFD simulation, the relationship between the separating efficiency and pressure drop and split ratio has been investigated. Test results show that the Newton efficiency can reach above 80%, i.e. the purity of PVC could reach 93.2% while the purity of PET could reach 94.5%.
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Wu Y, Wei YN, Yue WY, Chen WF, Fu S. Influence of gossypol acetic acid on the growth of human adenoid cystic carcinoma ACC-M cells and the expression of DNA methyltransferase 1. GENETICS AND MOLECULAR RESEARCH 2015; 14:13456-66. [PMID: 26535659 DOI: 10.4238/2015.october.28.6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We investigated the effects of gossypol acetic acid (GAA) on the proliferation, apoptosis, and expression of DNA methyltransferase 1 (DNMT1) mRNA in human adenoid cystic carcinoma (ACC-M) cells in vitro. The proliferation and apoptosis of ACC-M cells after treatment with different concentrations of GAA were detected using Cell Counting Kit-8 and flow cytometry, respectively. DNMT1 mRNA expression was measured by real-time fluorescence quantitative polymerase chain reaction. The growth of ACC-M cells was inhibited after treatment with GAA for 24, 48, and 72 h. The apoptotic rates of ACC-M cells after treatment with GAA for 72 h were higher than those of control cells (without treatment) (P < 0.05). DNMT1 mRNA expression in ACC-M after treatment with GAA for 72 h was lower than that in control cells (P < 0.05). GAA had inhibitory effects on the proliferation and induced apoptosis of human ACC-M cells, while GAA also reduced the expression level of DNMT1 mRNA in ACC-M cells.
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Liu X, George GC, Tsimberidou AM, Naing A, Wheler JJ, Kopetz S, Fu S, Piha-Paul SA, Eng C, Falchook GS, Janku F, Garrett C, Karp D, Kurzrock R, Zinner R, Raghav K, Subbiah V, Hess K, Meric-Bernstam F, Hong DS, Overman MJ. Retreatment with anti-EGFR based therapies in metastatic colorectal cancer: impact of intervening time interval and prior anti-EGFR response. BMC Cancer 2015; 15:713. [PMID: 26474549 PMCID: PMC4609167 DOI: 10.1186/s12885-015-1701-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 10/07/2015] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND This retrospective study aims to investigate the activity of retreatment with anti-EGFR-based therapies in order to explore the concept of clonal evolution by evaluating the impact of prior activity and intervening time interval. METHODS Eighty-nine KRAS exon 2-wild-type metastatic colorectal patients were retreated on phase I/II clinical trials containing anti-EGFR therapies after progressing on prior cetuximab or panitumumab. Response on prior anti-EGFR therapy was defined retrospectively per physician-records as response or stable disease ≥6 months. Multivariable statistical methods included a multiple logistic regression model for response, and Cox proportional hazards model for progression-free survival. RESULTS Retreatment anti-EGFR agents were cetuximab (n = 76) or cetuximab plus erlotinib (n = 13). The median interval time between prior and retreatment regimens was 4.57 months (range: 0.46-58.7). Patients who responded to the prior cetuximab or panitumumab were more likely to obtain clinical benefit to the retreatment compared to the non-responders in both univariate (p = 0.007) and multivariate analyses (OR: 3.38, 95 % CI: 1.27, 9.31, p = 0.019). The clinical benefit rate on retreatment also showed a marginally significant association with interval time between the two anti-EGFR based therapies (p = 0.053). Median progression-free survival on retreatment was increased in prior responders (4.9 months, 95 % CI: 3.6, 6.2) compared to prior non-responders (2.5 months, 95 % CI, 1.58, 3.42) in univariate (p = 0.064) and multivariate analysis (HR: 0.70, 95 % CI: 0.43-1.15, p = 0.156). CONCLUSION Our data lends support to the concept of clonal evolution, though the clinical impact appears less robust than previously reported. Further work to determine which patients benefit from retreatment post progression is needed.
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Fu S, Tang Y, Huang X, Feng M, Xu A, Lan H. Protective Role of Smad7 in Acute Kidney Injury (AKI). Int J Organ Transplant Med 2015. [DOI: 10.1016/j.hkjn.2015.09.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Henary H, George GC, Wheler J, Naing A, Piha-Paul S, Fu S, Mistry R, Zinner R, Kurzrock R, Hong DS. A phase 1 study of intermittently administered pazopanib in combination with continuous daily dosing of lapatinib in patients with solid tumors. Cancer Chemother Pharmacol 2015. [PMID: 26210681 DOI: 10.1007/s00280-015-2824-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE Preclinically, pazopanib/lapatinib combination acted synergistically to suppress the activity of multiple tyrosine kinases, including VEGFR-1, 2, 3, PDGFR and c-kit (pazopanib), HER1/EGFR and HER2 (lapatinib), and several other tyrosine kinases including c-Met through, plausibly, network inhibition effects. Clinically, continuous dosing of pazopanib/lapatinib combination was associated with a higher response rate than with lapatinib monotherapy, with poor tolerance. We explored multiple intermittent dose levels of pazopanib combined with continuous daily dosing of lapatinib in patients with solid tumors. METHODS The present study used a phase 1, modified 3 + 3, dose-escalation design to evaluate the safety and tolerability of the combination of orally received pazopanib once every other day with continuous daily dosing of lapatinib for 28 days. In the expansion phase, tumor response was evaluated in patients with specific genetic alterations (HER2 amplification, HER2 mutation, c-Met amplification, c-Met mutation, and EGFR mutation). RESULTS Twenty-four patients were treated. The most common drug-related adverse events were fatigue 7/24 (29%), skin rash 5/21 (21%), and diarrhea 3/24 (17%), with 4/24 (16%) patients experiencing grade ≥3 drug-related adverse events. Escalation to the FDA-approved dose (800 mg daily for pazopanib and 1500 mg every day for lapatinib) was not feasible due to toxicities. Pazopanib 200 mg every other day + lapatinib 500 mg daily was considered the maximum tolerated dose (MTD). No tumor response was observed, including in patients with the specific molecular genetic alterations tested. CONCLUSION Every other day dosing of pazopanib combined with daily lapatinib was tolerated at the established MTD, but no complete or partial tumor responses were observed at these dose levels.
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Xiao L, He HM, Zhong PS, Fu S, Chen C, Xue FS. Inheritance of photoperiodic control of larval diapause in the Asian corn borer Ostrinia furnacalis (Guenée). BULLETIN OF ENTOMOLOGICAL RESEARCH 2015; 105:326-334. [PMID: 25779483 DOI: 10.1017/s0007485315000140] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The Asian corn borer, Ostrinia furnacalis enters diapause as fully grown larvae. Owing to geographical variation in photoperiodic control of diapause, the subtropical strain from Hefei city (HF) enters diapause in response to short daylengths, whereas the tropical strain from Ledong county (LD) exhibits almost no diapause under the same conditions. The two strains were used in crosses to study the inheritance of diapause. The HF strain showed a typical long-day response with a critical daylength of approximately 14.97 h at 22 °C, 14.60 h at 25 °C and 13.68 h at 28 °C. The LD strain showed weak photoperiodic responses at 22 and 25 °C; and the F1 progeny also showed a long-day response with significantly shorter critical daylength compared with the HF strain. However, the LD × HF (F × M) crosses had significantly longer critical daylengths than HF × LD crosses, indicating a sexual bias in the inheritance of diapause induction, with the male parent having more influence on the F1 progeny. The critical daylength in a backcross to HF was significantly longer than a backcross to LD. Whether the inheritance of diapause fits an additive hypothesis or not depended on photoperiod, with results from different photoperiods showing additive inheritance or incomplete dominance of either diapause or non-diapause. Unlike diapause induction, the duration of diapause for reciprocal crosses was equally influenced by each parent, suggesting that diapause incidence and maintenance are controlled by separate systems in O. furnacalis.
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Fu S, Chow CK, Chan DS, To ES, Leung KY. The effect of eccentric exercise is dissimilar between superficial muscles of the quadriceps. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tan M, Nitz J, Boughen J, Fu S. Centre of gravity position in bipedal steady-stance is associated with performance of timed up and go but not functional reach. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1459] [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]
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Fu S, Davies KP. Opiorphin-dependent upregulation of CD73 (a key enzyme in the adenosine signaling pathway) in corporal smooth muscle cells exposed to hypoxic conditions and in corporal tissue in pre-priapic sickle cell mice. Int J Impot Res 2015; 27:140-5. [PMID: 25833166 PMCID: PMC4504813 DOI: 10.1038/ijir.2015.5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 01/08/2015] [Accepted: 02/12/2015] [Indexed: 01/01/2023]
Abstract
The precise molecular mechanisms underlying priapism associated with sickle cell disease remain to be defined. However, there is increasing evidence that up-regulated activity of the opiorphin and adenosine pathways in corporal tissue, resulting in heighted relaxation of smooth muscle, play an important role in development of priapism. A key enzyme in the adenosine pathway is CD73, an ecto-5-prime-nucleotidase (5-prime-ribonucleotide phosphohydrolase; EC 3.1.3.5) which catalyzes the conversion of adenosine mononucleotides to adenosine. In the present study we investigated how sickle cell disease and hypoxia regulate the interplay between opiorphin and CD73. In the corpora of sickle cell mice we observed significantly elevated expression of both the mouse opiorphin homologue mSmr3a (14-fold) and CD73 (2.2-fold) relative to non-sickle cell controls at a life-stage prior to the exhibition of priapism. Sickle cell disease has a pronounced hypoxic component, therefore we determined if CD73 was also modulated in in vitro corporal smooth muscle (CSM) models of hypoxia. Hypoxia significantly increased CD73 protein and mRNA expression by 1.5-fold and 2-fold, respectively. We previously demonstrated that expression of another component of the adenosine signaling pathway, the adensosine 2B receptor, can be regulated by sialorphin (the rat opiorphin homolologue), and we demonstrate that sialorphin also regulates CD73 expression in a dose and time dependent fashion. Using siRNA to knock-down sialorphin mRNA expression in CSM cells in vitro, we demonstrate that the hypoxic up-regulation of CD73 is dependent on the up-regulation of sialorphin. Overall our data provides further evidence to support a role for opiorphin in CSM in regulating the cellular response regulating response to hypoxia or sickle cell disease by activating smooth muscle relaxant pathways.
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Fu S, Hou MM, Naing A, Janku F, Hess K, Zinner R, Subbiah V, Hong D, Wheler J, Piha-Paul S, Tsimberidou A, Karp D, Araujo D, Kee B, Hwu P, Wolff R, Kurzrock R, Meric-Bernstam F. Phase I study of pazopanib and vorinostat: a therapeutic approach for inhibiting mutant p53-mediated angiogenesis and facilitating mutant p53 degradation. Ann Oncol 2015; 26:1012-1018. [PMID: 25669829 DOI: 10.1093/annonc/mdv066] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 01/29/2015] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND We carried out a phase I trial of the vascular endothelial growth factor inhibitor pazopanib and the histone deacetylase inhibitor vorinostat to determine the safety and efficacy. Because these agents are known to target factors activated by TP53 mutation and facilitate mutant p53 degradation, a subgroup analysis may be interesting in patients with TP53 mutant malignancies. PATIENTS AND METHODS Patients with advanced solid tumors (n = 78) were enrolled following a 3 + 3 design, with dose expansion for those with responsive tumors. Hotspot TP53 mutations were tested when tumor specimens were available. RESULTS Adverse events of ≥grade 3 included thrombocytopenia, neutropenia, fatigue, hypertension, diarrhea and vomiting. Overall, the treatment produced stable disease for at least 6 months or partial response (SD ≥6 months/PR) in 19% of the patients, median progression-free survival (PFS) of 2.2 months, and median overall survival (OS) of 8.9 months. In patients with detected hotspot TP53 mutant advanced solid tumors (n = 11), the treatment led to a 45% rate of SD ≥6 months/PR (1 PR and 3 SD ≥6 months), median PFS of 3.5 months, and median OS of 12.7 months, compared favorably with the results for patients with undetected hotspot TP53 mutations (n = 25): 16% (1 PR and 3 SD ≥6 months, P = 0.096), 2.0 months (P = 0.042), and 7.4 months (P = 0.1), respectively. CONCLUSION The recommended phase II dosage was oral pazopanib at 600 mg daily plus oral vorinostat at 300 mg daily. The preliminary evidence supports further evaluation of the combination in cancer patients with mutated TP53, especially in those with metastatic sarcoma or metastatic colorectal cancer. CLINICAL TRIAL REGISTRATION www.clinicaltrials.gov, NCT01339871.
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Pasin D, Bidny S, Fu S. Analysis of New Designer Drugs in Post-Mortem Blood Using High-Resolution Mass Spectrometry. J Anal Toxicol 2014; 39:163-71. [DOI: 10.1093/jat/bku144] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Janku F, Huang H, Claes B, Falchook G, Naing A, Piha-Paul S, Tsimberidou A, Zinner R, Karp D, Fu S, Subbiah V, Hong D, Wheler J, Luthra R, Patel S, Kopetz E, Sablon E, Maertens G, Kurzrock R, Meric-Bernstam F. 169 BRAF mutation testing in cell-free DNA from plasma of patients with advanced cancers using a novel, rapid, automated molecular diagnostics prototype platform (Idylla™). Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70295-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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100
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Yu Q, Li B, Fu S. A Plasma MicroRNA Panel to Diagnose Esophageal Squamous Cell Carcinoma and Predict the Effect of Radiation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.08.309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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