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Zhou Y, Qin Y, He X, Liu P, Yang J, Zhou L, Zhou S, Gui L, Yang S, Zhang C, Shi Y. Long-term survival and prognostic analysis of advanced stage follicular lymphoma in the rituximab era: A China single-center retrospective study. Asia Pac J Clin Oncol 2020; 17:289-299. [PMID: 32970914 DOI: 10.1111/ajco.13463] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 09/04/2020] [Indexed: 01/15/2023]
Abstract
AIM The prognosis and treatment options for follicular lymphoma (FL) remain heterogenous. This study aimed to analyze the prognostic impact of rituximab maintenance and evaluate the prognostic models in Chinese FL patients. METHODS We retrospectively evaluated patients with treatment-naïve advanced stage FL who were treated in Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College between January 2008 and December 2018. We compared the baseline characteristics, long-term survival outcomes, prognostic factors and the performance of four common prognostic models (i.e., FLIPI, FLIPI2, PRIMA-PI and LDH+β2M) between them. RESULTS A total of 158 patients were included (rituximab maintenance group, 77 patients; observation group, 81 patients). The median follow-up time was 61.0 months. The rituximab maintenance group showed significantly higher 5-year progression-free survival (PFS; 83.3% vs 52.7%, P < 0.001) and overall survival (OS; 97.8% vs 84.1%, P = 0.032) than the observation group. FLIPI2 showed a more discriminating C index than the other three models. CONCLUSION This study showed that rituximab maintenance after chemoimmunotherapy induction can prolong both PFS and OS in patients with advanced-stage FL, and FLIPI2 is a promising prognostic model.
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Song S, Gui L, Feng Q, Taledaohan A, Li Y, Wang W, Wang Y, Wang Y. TAT-Modified Gold Nanoparticles Enhance the Antitumor Activity of PAD4 Inhibitors. Int J Nanomedicine 2020; 15:6659-6671. [PMID: 32982225 PMCID: PMC7490092 DOI: 10.2147/ijn.s255546] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 08/05/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose Histone citrullination by peptidylarginine deiminases 4 (PAD4) regulates the gene expression of tumor suppressor. In our previously study, YW3-56 (356) was developed as a potent PAD4 inhibitor for cancer therapy with novel function in the autophagy pathway. To enhance the antitumor activity, the PAD4 inhibitor 356 was modified by the well-established cationic penetrating peptide RKKRRQRRR (peptide TAT) and gold nanoparticles to obtain 356-TAT-AuNPs which could enhance the permeability of chemical drug in solid tumor. Methods 356-TAT-AuNPs were prepared, and their morphology were characterized. The antitumor activity of 356-TAT-AuNPs was evaluated in vitro and in vivo. Results 356-TAT-AuNPs exhibited higher anticancer activity against HCT-116, MCF-7 and A549 cells than 356 and 356-AuNPs. Compared with 356 and 356-AuNPs, 356-TAT-AuNPs entered the cytoplasm and nuclear, exhibited stronger anticancer activity by increasing apoptosis, inducing autophagy and inhibiting of histone H3 citrullination, and in HCT-116 xenograft mouse model, 356-TAT-AuNPs could improve the antitumor activity. Conclusion The modified AuNPs with peptide TAT as drug delivery system are potent in delaying tumor growth and could be a powerful vehicle for profitable anticancer drug development. We believe that peptide TAT modification strategy may provide a simple and valuable method for improving antitumor activity of PAD4 inhibitors for clinical use.
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Zhao F, Qin Y, Yang J, Liu P, He X, Zhou L, Zhou S, Gui L, Zhang H, Wang X, Jiang S, Zhong Q, Zhou Y, Shi Y. R-CHOP immunochemotherapy plus surgery is associated with a superior prognosis in Chinese primary intestinal diffuse large B-cell lymphoma. Asia Pac J Clin Oncol 2020; 16:385-391. [PMID: 32779387 DOI: 10.1111/ajco.13396] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 05/21/2020] [Indexed: 12/13/2022]
Abstract
AIM The aim of the study was to compare the therapeutic strategies and prognostic factors of patients with primary intestinal diffuse large B-cell lymphoma (PI-DLBCL). METHODS A total of 50 PI-DLBCL patients who accepted standard first-line treatment at National Cancer Center in China were included in this retrospective study. Survival analysis was performed to evaluate the prognostic risk factors. RESULTS The 3-year overall survival (OS) and 3-year progression-free survival (PFS) for the entire group were 76.0% and 65.9%, respectively. Univariate analysis showed that B symptom, advanced Lugano stage, elevated LDH status, poor ECOG PS and immunochemotherapy alone were significantly correlated with a poor PFS. Elevated LDH status, poor ECOG PS, advanced Lugano stage, high IPI score and immunochemotherapy alone were significantly correlated with a poor OS. Multivariate analysis revealed that ECOG PS (P= 0.035; HR = 0.233; 95% CI, 0.060-0.905), LDH level (P = 0.010; HR = 0.223; 95% CI, 0.072-0.693) and surgery (P = 0.002; HR = 5.584; 95% CI, 1.883-16.563) were independent prognostic factors for OS. LDH level (P = 0.035; HR = 0.210; 95% CI, 0.049-0.894) and surgery (P = 0.003; HR = 6.410; 95% CI, 1.903-21.593) were independent risk factors for PFS in PI-DLBCL. R-CHOP immunochemotherapy combined surgery treatment was also associated with a lower rate of refractory/relapsed (R/R) disease (P = 0.004). Furthermore, stratified analysis revealed that partial resection or radical resection combined with immunochemotherapy had no significantly difference which affect OS (P = 0.338) and PFS (P = 0.207). CONCLUSION R-CHOP immunochemotherapy plus surgery was associated with a superior prognosis compared with R-CHOP alone in Chinese PI-DLBCL population.
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Zhou J, Lu Q, Xu R, Gui L, Wang H. Prediction of TF-Binding Site by Inclusion of Higher Order Position Dependencies. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2020; 17:1383-1393. [PMID: 30629513 DOI: 10.1109/tcbb.2019.2892124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Most proposed methods for TF-binding site (TFBS) predictions only use low order dependencies for predictions due to the lack of efficient methods to extract higher order dependencies. In this work, we first propose a novel method to extract higher order dependencies by applying CNN on histone modification features. We then propose a novel TFBS prediction method, referred to as CNN_TF, by incorporating low order and higher order dependencies. CNN_TF is first evaluated on 13 TFs in the mES cell. Results show that using higher order dependencies outperforms low order dependencies significantly on 11 TFs. This indicates that higher order dependencies are indeed more effective for TFBS predictions than low order dependencies. Further experiments show that using both low order dependencies and higher order dependencies improves performance significantly on 12 TFs, indicating the two dependency types are complementary. To evaluate the influence of cell-types on prediction performances, CNN_TF was applied to five TFs in five cell-types of humans. Even though low order dependencies and higher order dependencies show different contributions in different cell-types, they are always complementary in predictions. When comparing to several state-of-the-art methods, CNN_TF outperforms them by at least 5.3 percent in AUPR.
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Zhou J, Lu Q, Gui L, Xu R, Long Y, Wang H. MTTFsite: cross-cell type TF binding site prediction by using multi-task learning. Bioinformatics 2020; 35:5067-5077. [PMID: 31161194 PMCID: PMC6954652 DOI: 10.1093/bioinformatics/btz451] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 05/19/2019] [Accepted: 05/30/2019] [Indexed: 12/30/2022] Open
Abstract
Motivation The prediction of transcription factor binding sites (TFBSs) is crucial for gene expression analysis. Supervised learning approaches for TFBS predictions require large amounts of labeled data. However, many TFs of certain cell types either do not have sufficient labeled data or do not have any labeled data. Results In this paper, a multi-task learning framework (called MTTFsite) is proposed to address the lack of labeled data problem by leveraging on labeled data available in cross-cell types. The proposed MTTFsite contains a shared CNN to learn common features for all cell types and a private CNN for each cell type to learn private features. The common features are aimed to help predicting TFBSs for all cell types especially those cell types that lack labeled data. MTTFsite is evaluated on 241 cell type TF pairs and compared with a baseline method without using any multi-task learning model and a fully shared multi-task model that uses only a shared CNN and do not use private CNNs. For cell types with insufficient labeled data, results show that MTTFsite performs better than the baseline method and the fully shared model on more than 89% pairs. For cell types without any labeled data, MTTFsite outperforms the baseline method and the fully shared model by more than 80 and 93% pairs, respectively. A novel gene expression prediction method (called TFChrome) using both MTTFsite and histone modification features is also presented. Results show that TFBSs predicted by MTTFsite alone can achieve good performance. When MTTFsite is combined with histone modification features, a significant 5.7% performance improvement is obtained. Availability and implementation The resource and executable code are freely available at http://hlt.hitsz.edu.cn/MTTFsite/ and http://www.hitsz-hlt.com:8080/MTTFsite/. Supplementary information Supplementary data are available at Bioinformatics online.
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Jiang S, Qin Y, Jiang H, Liu B, Shi J, Meng F, Liu P, Yang J, Yang S, He X, Zhou S, Gui L, Liu H, Lin J, Han-Zhang H, Shi Y. Molecular profiling of Chinese R-CHOP treated DLBCL patients: Identifying a high-risk subgroup. Int J Cancer 2020; 147:2611-2620. [PMID: 32399964 DOI: 10.1002/ijc.33049] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 04/18/2020] [Accepted: 04/29/2020] [Indexed: 12/13/2022]
Abstract
Diffuse large B-cell lymphoma (DLBCL) is a clinically aggressive and heterogenous disease. Although most patients can be cured by immunochemotherapy, 30% to 40% patient will ultimately develop relapsed or refractory disease. Here, we investigated the molecular landscapes of patients with diverse responses to R-CHOP. We performed capture-based targeted sequencing on baseline samples of 105 DLBCL patients using a panel consisting of 112 lymphoma-related genes. Subsequently, 81 treatment-naïve patients with measurable disease and followed for over 1 year were included for survival analysis. Collectively, the most commonly seen mutations included IGH fusion (69%), PIM1(33%), MYD88 (29%), BCL2 (29%), TP53 (29%), CD79B (25%) and KMT2D (24%). Patients with TP53 mutations were more likely to have primary refractory disease (87.0% vs 50.0%, P = .009). For those with TP53 disruptive mutations, 91.7% patients were in the primary refractory group. Interestingly, BCL-2 somatic hypermutation was only seen in patients without primary refractory disease (P = .014). In multivariate analysis, BCL-2 amplification (hazard ratio [HR] = 2.94, P = .022), B2M mutation (HR = 2.99, P = .017) and TP53 mutation (HR = 3.19, P < .001) were independently associated with shorter time to progression (TTP). Furthermore, TP53 mutations was correlated with worse overall survival (P = .049). Next, we investigated mutation landscape in patients with wild-type (WT) TP53 (n = 58) and found that patients harboring MYD88 L265P had significantly inferior TTP than those with WT or non-265P (P = .046). Our study reveals the mutation spectrum of treatment-naive Chinese DLBCL patients. It also confirms the clinical significance of TP53 mutations and indicates the prognostic value of MYD88 L265P in TP53 WT patients.
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Sun J, Wang Q, Wang L, Gui L, Li Q, Luo Y, Zhang S, Zhang P. [A prospective study of bone loss in early stage postmenopausal breast cancer treated with aromatase inhibitors]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 2020; 42:403-407. [PMID: 32482030 DOI: 10.3760/cma.j.cn112152-112152-20191112-00728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the occurrence and development of aromatase inhibitors (AIs) related bone loss in Chinese patients with postmenopausal early-stage breast cancer. Methods: Patients with estrogen receptor (ER) and (or) progesterone receptor(PR) positive postmenopausal early-stage breast cancer who received Letrozole, Anastrozole, or Exemestane as adjuvant therapy were enrolled. Before treatment, baseline bone mineral density (BMD), bone metabolism markers were examined and a lifestyle questionnaire was completed; BMD was examined annually during the treatment; Outpatient visits were conducted to record recurrent and fatal events. Results: From November 2013 to August 2016, 131 patients with breast cancer eligible for enrollment were enrolled. A total of 65 patients had normal baseline bone mass, and 68 patients had reduced bone mass. Letrozole was taken in 69 patients, anastrozole in 52 patients, and exemestane in 10 patients. With a median follow-up of 43.7 months, 100 patients could be evaluated for changes in bone mineral density. Bone mineral density of femoral neck, total hip, and lumbar spine L1 to 4 decreased year by year, and the decrease was the most significant in the first year, which decreased by 2.3%, 2.4%, and 3.9% respectively. Ten new cases of osteoporosis occurred in two years, eight of them occurred in the lumbar spine, all of whom had reduced bone mass at baseline. Among the 131 patients who completed the lifestyle questionnaire, the proportions of daily calcium supplementation and vitamin D were 28.2% and 7.6%, respectively; more than half (52.7%) of them lacked regular exercise. Conclusion: BMD was declining steadily in patients treated with AIs, especially in the first year. Lumbar spine is the most common osteoporosis site, early prevention and health education should be strengthened.
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Xu Y, Shen YY, Zhang XP, Gui L, Cai M, Peng GP, Pan XD, Zhang J, Gan D, Li B, Cheng HP, Deng J, Li WW, Zeng GH, Shi AY, Zhou ZH, Luo BY, Chen XC, Wang YJ. Diagnostic potential of urinary monocyte chemoattractant protein-1 for Alzheimer's disease and amnestic mild cognitive impairment. Eur J Neurol 2020; 27:1429-1435. [PMID: 32282975 DOI: 10.1111/ene.14254] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/31/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND AND PURPOSE The chemokine monocyte chemoattractant protein-1 (MCP-1) is involved in the pathogenesis of Alzheimer's disease (AD). This study aimed to investigate whether urinary MCP-1 can distinguish patients with AD, patients with amnestic mild cognitive impairment (aMCI) and cognitively normal (CN) subjects. METHODS A total of 754 participants, including 97 patients with AD, 50 patients with aMCI and 84 age- and sex-matched CN controls as well as a cohort of 523 CN subjects of different ages, were enrolled from five hospitals located in different areas of China. Urinary MCP-1 levels were determined using enzyme-linked immunosorbent assays. The correlations between urinary MCP-1 levels and cognition test scores or age were analysed. The optimal diagnostic sensitivity and specificity were determined using receiver operating characteristic curve analysis. RESULTS In the cohort of CN subjects of different ages, urinary MCP-1 levels increased with ageing and were correlated with age. The urinary MCP-1 levels were higher in females than in males. In the cohort composed of patients with AD, aMCI and age- and sex-matched CN controls, urinary MCP-1 levels were significantly higher in patients with AD and aMCI than in CN controls. There were no differences in urine MCP-1 levels between the AD group and the aMCI group. The urinary MCP-1 levels were correlated with the Mini-Mental State Examination scores and age, and were able to differentiate patients with AD and aMCI from CN subjects. CONCLUSIONS Urinary MCP-1 is a potential biomarker for the diagnosis of AD and aMCI.
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Zhang P, Xu B, Gui L, Wang W, Xiu M, Zhang X, Sun G, Zhu X, Zou J. A phase I study of SHR6390, a cyclin-dependent kinase 4/6 inhibitor in patients with advanced breast cancer (ABC). J Clin Oncol 2020. [DOI: 10.1200/jco.2020.38.15_suppl.1095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
1095 Background: SHR6390 is a novel inhibitor of cyclin-dependent kinase 4/6 (CDK 4/6). This study was conducted to evaluate the tolerability, pharmacokinetics, safety, and preliminary antitumor activity of SHR6390 in patients (pts) with advanced breast cancer (ABC). Methods: In this open-label, single-arm phase I study, pts who had failed standard therapy were enrolled to receive oral SHR6390 in 3 + 3 dose-escalation pattern at doses of 25−175 mg. Eligible pts were given a single-dose of SHR6390 in week 1, followed by once daily continuous doses for three weeks, and one week off in 28-day cycle. Based on the tolerability, pharmacokinetics, and activity data revealed from the dose-escalation phase, three dose cohorts were selected to expand to 8−10 pts. The primary endpoints were maximum tolerated dose (MTD) and pharmacokinetics. Results: Between Apr 15, 2016 and Dec 21, 2018, 40 pts were enrolled. All pts were diagnosed of hormone receptor positive and HER2-negative ABC. 45.0% of pts had at least three prior chemotherapies and 55.0% had at least two prior endocrine therapies. SHR6390 100 mg, 125 mg, and 150 mg cohorts were expanded to 10 pts, respectively. No dose limiting toxicity was observed and the MTD was not reached. Adverse events (AEs) of grade ≥3 were observed in 22 (55.0%) of 40 pts, being neutropenia (52.5%), leukopenia (35.0%), thrombocytopenia (5.0%), and hypertension (2.5%). No serious AEs were reported. At the doses of 50−175 mg, median time to peak concentration was 2.5−4.0 h, and mean terminal half-life was 40.3−51.4 h with single-dose SHR6390. Following multiple dosing, steady state SHR6390 was observed on day 8. The steady state areas under the concentration and peak concentration increased slightly greater than the increase rate of dose, with steady state Cmax at day 21 of 41.1, 53.4, 87.0, 115.0, 126.0, and 155.0 ng/mL in 50, 75, 100, 125, 150, and 175 mg cohorts, respectively. The disease control rate was 62.5% (25/40, 95% CI 45.8% to 77.3%). Two pts (5%, one in 125 mg, one in 150 mg cohort) achieved partial response, with responses lasting 169 and 356+ days, respectively. Conclusions: SHR6390 showed acceptable safety profile and dose-dependent plasma exposure in pts with ABC. The recommended phase II dose was 150 mg. Preliminary evidence of clinical activity was observed, warranted further study. Clinical trial information: NCT02684266 .
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Liu P, Jiang SY, He XH, Qin Y, Gui L, Zhou SY, Yang JL, Yang S, Wen TY, Shi YK. [Comparison the efficacy and prognosis of different first-line treatment for elderly diffuse large B-cell lymphoma]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 2020; 42:234-241. [PMID: 32252203 DOI: 10.3760/cma.j.cn112152-20190705-00413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical features, survival and prognostic factors of elder patients with diffuse large B-cell lymphoma (DLBCL). Methods: The clinical data of elder patients with diffuse large B-cell lymphoma enrolled in the Cancer Hospital of Chinese Academy of Medical Sciences from April 2006 to December 2012 were retrospectively collected. All the patients were divided into R-CHOP-like group and CHOP-like group according to the dosage regimen. And the differences in demographic characteristics, clinical features, survival time and prognostic factors were compared between these two groups. Results: A total of 158 patients were enrolled, of which 78 patients in the R-CHOP-like group and 80 patients in the CHOP-like group were eligible. There were no significant differences between two groups on age, gender, pathological staging, B symptoms, bulky mass, ECOG score, IPI score, pathological type, LDH level, β(2)-MG level, lymphocyte/monocyte ratio(LMR), neutrophils/lymphocyte ratio(NLR), platelet/lymphocyte ratio(PLR), Ki-67 index and bone marrow invasion. In the R-CHOP like group, the median progression-free survival (PFS) time was 10 months, and the median overall survival (OS) time was 30 months. The 1-year and 2-year PFS rates were 46.2% and 19.2%, respectively. The 1-, 2-, and 5-year OS rates were 79.5%, 59.0%, and 19.2%, respectively. In the CHOP-like group, the median PFS was 7 months, and the median OS was 15 months. The 1-year and 2-year PFS rates were 27.5% and 12.5% respectively. The 1-year, 2-year, and 5-year OS rates were 65.0%, 32.5% and 13.8%, respectively. The median PFS time and OS time in the R-CHOP group were significantly better than those in the CHOP group (P<0.05 for both). A stratified analysis showed that the PFS time and OS time were superior in the R-CHOP-like group compared to the CHOP-like group among patients older than 70 years (P<0.05 for both). In patients with stage Ⅲ-Ⅳ, the PFS time and OS time in the R-CHOP-like group were also superior to CHOP-like group (P<0.05 for both). Univariate Cox regression analysis showed that IPI score, LDH value, β(2)-MG value, ECOG score, LMR, and PLR had an significant effect on prognosis (P<0.05 for all). Multivariate Cox regression analysis showed that lymphocyte/monocyte ratio and platelet/lymphocyte ratio were independent prognostic factors for diffuse large B-cell lymphoma (P<0.05 for both). Conclusions: The R-CHOP-like chemotherapy regimen is superior to the CHOP-like regimen in the first-line treatment of patients with diffuse large B-cell lymphoma. ECOG score, LMR and PLR may be independent prognostic factors for diffuse large B-cell lymphoma. ECOG score, LMR and PLR are independent prognostic factors.
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Tataranno ML, Gui L, Hellström-Westas L, Toet M, Groenendaal F, Claessens NHP, Schuurmans J, Fellman V, Sävman K, de Vries LS, Huppi P, Benders MJNL. Morphine affects brain activity and volumes in preterms: An observational multi-center study. Early Hum Dev 2020; 144:104970. [PMID: 32276190 DOI: 10.1016/j.earlhumdev.2020.104970] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 02/04/2020] [Accepted: 02/04/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE We hypothesized that morphine has a depressing effect on early brain activity, assessed using quantitative aEEG/EEG parameter and depressed activity will be associated with brain volumes at term in extremely preterm infants. STUDY DESIGN 174 preterm infants were enrolled in 3 European tertiary NICUs (mean GA:26 ± 1wks) and monitored during the first 72 h after birth with continuous 2 channel aEEG. Six epochs of aEEG recordings were selected and minimum amplitude of aEEG (min aEEG), percentage of time amplitude <5 μV (% of time < 5 μV), spontaneous activity transients (SATrate) and interSAT interval (ISI) were calculated. For infants receiving morphine, the cumulative morphine dosage was calculated. In a subgroup of 58 infants, good quality MRI at term equivalent age (TEA) and the cumulative morphine dose until TEA were available. The effects of morphine administration and cumulative dose on aEEG/EEG measures and on brain volumes were investigated. RESULTS Morphine administration had a significant effect on all quantitative aEEG/EEG measures, causing depression of early brain activity [longer ISI (β 2.900), reduced SAT rate (β -1.386), decreased min aEEG (β -0.782), and increased % of time < 5 μV (β 14.802)] in all epochs. A significant effect of GA and postnatal age on aEEG/EEG measures was observed. Cumulative morphine dose until TEA had a significant negative effect on total brain volume (TBV) (β -8.066) and cerebellar volume (β -1.080). CONCLUSIONS Administration of sedative drugs should be considered when interpreting aEEG/EEG together with the negative dose dependent morphine impact on brain development.
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Ouyang P, Cai J, Gui L, Liu S, Wu NYY, Wang J. Comparison of survival outcomes of neoadjuvant therapy and direct surgery in IB2/IIA2 cervical adenocarcinoma: a retrospective study. Arch Gynecol Obstet 2020; 301:1247-1255. [PMID: 32221709 PMCID: PMC7181442 DOI: 10.1007/s00404-020-05505-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 03/12/2020] [Indexed: 02/01/2023]
Abstract
PURPOSE This retrospective study compared the efficacy and survival of patients with cervical adenocarcinoma (IB2/IIA2; FIGO2009) treated with neoadjuvant chemotherapy before radical surgery (NACT + RS), neoadjuvant chemoradiation therapy before radical surgery (NACRT + RS), or primary radical surgery (RS). METHODS Between January 2008 and November 2015, 91 patients diagnosed with stage IB2/IIA2 cervical adenocarcinoma were enrolled, including 29 patients who received RS, 24 patients who received NACT + RS, and 38 patients who received NACRT + RS. RESULTS The characteristics of patients were balanced among the three groups, and the median follow-up time was 72 months. The 5 year disease-free survival (DFS) rate was 75.8% and the 5 year overall survival (OS) rate was 85.0%. Univariate analysis revealed that effectiveness of neoadjuvant treatment, tumor size, lymph node metastases, and depth of stromal invasion were the factors predicting recurrence and mortality. Multivariate Cox proportional analysis revealed that the occurrence of a lymph node metastasis was an independent prognostic factor of DFS (hazard ratio [HR] = 0.223; 95% confidence interval [CI]: 0.060-0.827) and OS (HR = 0.088; 95% CI: 0.017-0.470). On survival analysis of preoperative adjuvant chemotherapy and primary surgery, the 5 year OS (P = 0.010) and DFS (P = 0.016) rates for the NACRT + RS group were significantly lower than those for the RS group. CONCLUSION Stage IB2/IIA2 cervical adenocarcinoma patients who received primary RS had a better DFS and OS than those who received preoperative NACRT. There was no significant difference when compared to the preoperative NACT group.
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Zhang R, Ye Z, Gao M, Gao C, Zhang X, Li L, Gui L. Liquid metal electrode-enabled flexible microdroplet sensor. LAB ON A CHIP 2020; 20:496-504. [PMID: 31840725 DOI: 10.1039/c9lc00995g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This study presented a flexible liquid metal-based microdroplet capacitive sensor that would simply and accurately measure the speed and length of droplets flowing in microchannels. A pair of coplanar U-shaped electrodes was used to form a capacitance through droplet microchannels. Liquid metal was injected into polydimethylsiloxane (PDMS) channels to form the U-shaped electrodes. The sensor would generate a multi-plateau capacitance waveform as a droplet passes through the sensing area, and each plateau period corresponds to the droplet position in the sensing area. The droplet speed and length would be directly calculated from the multi-plateau capacitance waveform. The errors for the capacitive result relative to the real value were <7.2% for length and <2.8% for speed. Moreover, the sensor still maintained excellent performance for droplet length and speed measurement even though the microfluidic chip was bent to 96°. We have demonstrated that the capacitive sensor would be used for sweat rate monitoring.
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Xu R, Wen Z, Gui L, Lu Q, Li B, Wang X. Ensemble with estimation: seeking for optimization in class noisy data. INT J MACH LEARN CYB 2020. [DOI: 10.1007/s13042-019-00969-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhang L, Zhang P, Wang R, Zhang R, Li Z, Liu W, Wang Q, Gao M, Gui L. A Performance-Enhanced Liquid Metal-Based Microheater with Parallel Ventilating Side-Channels. MICROMACHINES 2020; 11:mi11020133. [PMID: 31991611 PMCID: PMC7074615 DOI: 10.3390/mi11020133] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/15/2020] [Accepted: 01/20/2020] [Indexed: 01/07/2023]
Abstract
Gallium-based liquid metal can be used as a material for microheaters because it can be easily filled into microchannels and electrified to generate Joule heat, but the liquid metal-based microheater will suffer breakage induced by voids forming within the liquid metal when the temperature normally gets higher than 100 °C. To resolve this problem, a novel liquid metal-based microheater with parallel ventilating side-channels is presented. It consists of a liquid-metal heating channel and two parallel ventilating side-channels. The heating channel is connected with the side-channels by small gaps between polydimethylsiloxane (PDMS) posts. Experimental results show that this novel microheater can be heated up to 200 °C without damage. To explain its excellent performance, an experiment is performed to discover the development of the voids within the liquid-metal heating channel, and two reasons are put forward in this work on the basis of the experiment. Afterward pressing and bending tests are conducted to explore the mechanical stability of the novel microheaters. Finally, the microheaters are applied to warm water to show their good flexibility on non-flat surfaces. In consequence, the novel liquid metal-based microheater is believed to be widely applicable to soft micro-electro-mechanical system(MEMS) heating devices.
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Jiang S, Qin Y, Liu P, Yang J, Yang S, He X, Zhou S, Gui L, Zhang C, Zhou L, Sun Y, Shi Y. Prognostic Nomogram and Predictive Factors in Refractory or Relapsed Diffuse Large B-Cell Lymphoma Patients Failing Front-Line R-CHOP Regimens. J Cancer 2020; 11:1516-1524. [PMID: 32047558 PMCID: PMC6995391 DOI: 10.7150/jca.36997] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 11/30/2019] [Indexed: 12/12/2022] Open
Abstract
Background: The clinical course of relapsed or refractory (r/r) diffuse large B-cell lymphoma (DLBCL) is variable, with limited efficacy data of second-line treatment in a post-rituximab real-world context. Hence, we explored the predictors and constructed a nomogram for risk stratification in this population. Patients and methods: Among 296 r/r DLBCL patients pretreated with R-CHOP (rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone) at the Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College between 2006 and 2017, 231 were included for nomogram construction. After randomization, we constructed the prognostic nomogram in the primary cohort (n=161) based on a multivariate analysis and confirmed it in the validation cohort (n=70). Additionally, we explored predictive factors for second-line therapy using a ordinal regression analysis. Results: Four independent prognostic factors including rituximab in the second-line setting, initial Eastern Cooperative Oncology Group (ECOG) performance status (PS), response to front-line treatment, and invasion on progression/recurrence were used to construct the nomogram. The nomogram had a C index of 0.70 with AUC values of 0.73 and 0.71 for the primary and validation cohorts, respectively. Subsequently, three risk groups (low, intermediate, and high) were determined with median overall survival (OS) of 38.0, 25.0, and 7.0 months, respectively. Additionally, we conducted a multivariate ordinal regression analysis and identified prior response to front-line treatment (odds ratio=4.50, 95% CI: 1.84-11.27, p=0.001) and bulky disease at diagnosis (odds ratio=0.36, 95% CI: 0.182-0.702, p=0.003) were two independent factors for second-line treatment efficacy. Conclusions: The established predictors for treatment efficacy and the novel nomogram for survival in r/r DLBCL patients could potentially be applied for risk stratification and treatment guidance in the post-rituximab era.
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Zhou J, Lu Q, Xu R, Gui L, Wang H. EL_LSTM: Prediction of DNA-Binding Residue from Protein Sequence by Combining Long Short-Term Memory and Ensemble Learning. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2020; 17:124-135. [PMID: 30040656 DOI: 10.1109/tcbb.2018.2858806] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Most past works for DNA-binding residue prediction did not consider the relationships between residues. In this paper, we propose a novel approach for DNA-binding residue prediction, referred to as EL_LSTM, which includes two main components. The first component is the Long Short-Term Memory (LSTM), which learns pairwise relationships between residues through a bi-gram model and then learns feature vectors for all residues. The second component is an ensemble learning based classifier introduced to tackle the data imbalance problem in binding residue predictions. We use a variant of the bagging strategy in ensemble learning to achieve balanced samples. Evaluations on PDNA-224 and DBP-123 show that adding feature relationships performs better than classifiers without feature relationships by at least 0.028 on MCC, 1.18 percent on ST and 0.012 on AUC. This indicates the usefulness of feature relationships for DNA-binding residue predictions. Evaluation on using ensemble learning indicates that the improvement can reach at least 0.021 on MCC, 1.32 percent on ST, and 0.018 on AUC compared to the use of a single LSTM classifier. Comparisons with the state-of-the-art predictors show that our proposed EL_LSTM outperforms them significantly. Further feature analysis validates the effectiveness of LSTM for the prediction of DNA-binding residues.
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Zhang LD, Han W, Zhu CF, Song XG, Cheng H, Yang K, Qin XF, Zhang JY, Gui L. [Moxibustion at acpoints of governor vessel on regulating PI3K/Akt/mTOR signaling pathway and enhancing autophagy process in APP/PS1 double-transgenic Alzheimer's disease mice]. ZHONGGUO ZHEN JIU = CHINESE ACUPUNCTURE & MOXIBUSTION 2019; 39:1313-8. [PMID: 31820607 DOI: 10.13703/j.0255-2930.2019.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To observe the eliminating effects of moxibustion at "Baihui" (GV 20), "Fengfu" (GV 16) and "Dazhui" (GV 14) on amyloid β-peptide (Aβ) in brain of the amyloid precursor protein/presenili1 (APP/PS1) double-transgenic mice with Alzheimer's disease (AD) by regulating the phosphoinositide 3-kinases/protein kinase B/mammalian target of rapamycin (PI3K/Akt/mTOR) signaling pathway. METHODS A total of 60 APP/PS1 double-transgenic mice with AD were randomly divided into a model group, a moxibustion group, a rapamycin group and a combination group (treated with moxibustion and inhibitor), 15 mice in each group, another 15 male C57BL/6J mice with same age and background were selected as the control group. In the moxibustion group, pressing moxibustion was applied at "Baihui" (GV 20) while the mild moxibustion was applied at "Fengfu" (GV 16) and "Dazhui" (GV 14). The treatment was manipulated for 20 min each time, once a day for 2 weeks. In the rapamycin group, rapamycin (2 mg/kg) was given by intraperitoneal injection once a day for 2 weeks. On the basis of the treatment in the moxibustion group, 3-methyladenine (1.5 mg/kg) was given by intraperitoneal injection once a day for 2 weeks. The mice in the control and the model group received normal diet and no intervention was given for 2 weeks. Immunohistochemica method was used to measure the levels of Aβ1-42 in the cerebral cortex and hippocampal, transmission electron microscopy was used to observe the formation of autophagosome in hippocampus, and Western blot method was used to observe the levels of PI3K, Akt, p-Akt, mTOR and p-mTOR in hippocampus. RESULTS Compared with the control group, the levels of Aβ1-42 in the cerebral cortex and hippocampal were increased in the model group (P<0.01). Compared with the model group, the levels of Aβ1-42 in the cerebral cortex and hippocampal were decreased in the moxibustion group, the rapamycin group and the combination group (all P<0.01), compared with the moxibustion group, the levels of Aβ1-42 in the cerebral cortex and hippocampal were increased in the combination group (P<0.01), while there was no significant difference between the moxibustion group and the rapamycin group in the levels of Aβ1-42(P>0.05). Compared with the rapamycin group, the levels of Aβ1-42 in the cerebral cortex and hippocampal were increased in the combination group (P<0.01). In the model group, the cytoplasmic utophagic vacuoles and organelles of neuron were reduced. In the moxibustion group, the utophagic vacuoles were increased, and the organelles showed deformation and atrophy. In the rapamycin group, the utophagic vacuoles were widely disturbed and few deformed organelles were found. In the combination group, few utophagic vacuoles were found and additional organelles showed deformation and atrophy. Compared with the control group, the levels of PI3K、Akt、p-Akt、mTOR and p-mTOR were increased in the model group (all P<0.01). Compared with the model group, the levels of PI3K、Akt、p-Akt、mTOR and p-mTOR were reduced in the moxibustion group, the rapamycin group and the combination group (all P<0.01). Compared with the moxibustion group, the levels of PI3K、Akt、and p-mTOR were increased in the rapamycin group and the levels of PI3K、Akt、p-Akt、mTOR and p-mTOR were increased in the combination group (all P<0.01). Compared with the rapamycin group, the levels of PI3K、Akt、p-Akt、mTOR and p-mTOR were increased in the combination group (P<0.01). CONCLUSION Moxibustion at acupoints of governor vessel can enhance the autophagy process on Aβ1-42 in brain of the APP/PS1 double-transgenic AD mice, which may be associated with its effects on inhibiting the abnormal activation of PI3K/Akt/mTOR signaling pathway.
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Gui L, He X. Efficacy and safety of apatinib in heavily pretreated metastatic adenocarcinoma of the head and neck. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz428.019] [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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Gui L, Peng J, Li P, Peng R, Yu P, Luo Y. Electrochemical degradation of dye on TiO 2 nanotube array constructed anode. CHEMOSPHERE 2019; 235:1189-1196. [PMID: 31561310 DOI: 10.1016/j.chemosphere.2019.06.170] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 06/21/2019] [Accepted: 06/22/2019] [Indexed: 05/23/2023]
Abstract
A high oxygen evolution potential (2.6V) and conductivity of Ti/TiO2 NTs/Ta2O5-PbO2 anode was fabricated by mixed metal oxide. A well-aligned TiO2 nanotubes was successfully prepared by using 1-butyl-3-methylimidazolium tetrafluoroborate as the electrolyte. The surface structure of anodes were characterized by scanning electron microscope, X-ray diffraction and energy dispersive X-ray spectroscopy. During the electrochemical degradation experiments, the effects of different anodes, current density, initial pH value and concentration were discussed. The results showed that co-doped Ta2O5 coating is an effective method to improve the surface morphology and the electrochemical characterization of Ti/TiO2 NTs/PbO2. At the initial pH value of 3 and current density of 12 mA cm-2, the removal rates of Acid Orange 7 and total organic carbon with Ti/TiO2 NTs/Ta2O5-PbO2 anode were almost 100% and 98.3%. Comparing with Ti/PbO2 anode at the same charge consumption (3 A h L-1), the instantaneous current efficiency of the Ti/TiO2 NTs/Ta2O5-PbO2 anode and Ti/TiO2 NTs/PbO2 anode increased by 40.0% and 27.1%, respectively. The highest rate of k.OH on Ti/TiO2 NTs/Ta2O5-PbO2 anode was 12.4 μmol (L min)-1. The organic dyes are oxidized into CO2 and H2O by .OH radical. The reaction process and mechanism during the electrochemical degradation were discussed.
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Shi YK, Jiang S, Qin Y, Jiang H, Liu B, Shi J, Meng F, Liu P, Yang J, Yang S, He X, Zhou S, Gui L, Liu H, Lin J. Molecular profiling and prognostic significance of TP53 mutations in diffuse large b cell lymphoma: Identifying a high-risk subgroup. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz239.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Peng R, Zhang H, Gui L, Zheng Y, Wu Z, Luo Y, Yu P. Construction of 0D CeO2/2D MnO2 heterostructure with high electrochemical performance. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.06.142] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Xue X, Wang J, Li S, Zhang X, Dong J, Gui L, Chang Q. Effect of micronised oat bran by ultrafine grinding on dietary fibre, texture and rheological characteristic of soft cheese. Int J Food Sci Technol 2019. [DOI: 10.1111/ijfs.14309] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Han X, Tan Q, Yang S, Li J, Xu J, Hao X, Hu X, Xing P, Liu Y, Lin L, Gui L, Qin Y, Yang J, Liu P, Wang X, Dai W, Lin D, Lin H, Shi Y. Comprehensive Profiling of Gene Copy Number Alterations Predicts Patient Prognosis in Resected Stages I-III Lung Adenocarcinoma. Front Oncol 2019; 9:556. [PMID: 31448219 PMCID: PMC6691340 DOI: 10.3389/fonc.2019.00556] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 06/07/2019] [Indexed: 12/21/2022] Open
Abstract
Background: Lung adenocarcinoma (LUAD) possesses a poor prognosis with a low 5-year survival rate even for stages I-III resected patients, it is thus critical to understand the determinants that affect the survival and discover new potentially prognostic biomarkers. Somatic copy number alterations (CNAs) are major source of genomic variations driving tumor evolution, CNAs screening may identify prognostic biomarkers. Methods: Oncoscan MIP array was used to analyze the patterns of CNAs on formalin fixed paraffin embedded(FFPE) tumor specimens from 163 consecutive stage I-III resected LUAD patients, 145 out of which received platinum-based adjuvant chemotherapy. Results: Of the 163 patients, 91(55.8%) were recurred within 3 years after surgery. The most common aberrations in our cohort were 1q, 5p, 5q, 7p, 8q, 14p, 16p, 17q, 20q for copy number gains and 8p, 9p, 13p, 16q, 18q for losses. The GISTIC2 analysis produced 45 amplification peaks and 40 deletion peaks, involving some reported genes TERT, EGFR, MYC, CCND1, CDK4, MDM2, ERBB2, NKX2-1, CCNE1, and CDKN2A, most of which were consistent with TCGA database. The amplifications of 12p12.1 (CMAS, GOLT1B, YS2, LDHB, RECQL, ETNK1, IAPP, PYROXD1, KRAS) and KDM5A were correlated with worse prognosis in our cohort, this result was further validated in 506 LUAD patients from TCGA. In addition, 163 patients could be well-classified into five groups, and the clinical outcomes were significantly different based on threshold copy number at reoccurring alteration peaks. Among the 145 patients who received adjuvant chemotherapy, focal amplification of ERBB2 and deletion of 4q34.3 were found to be specific in relapsed patients, this result was validated in an independent group of Imielinski et al., demonstrating these two CNAs may contribute to resected LUAD recurrence after adjuvant chemotherapy. Conclusion: This study suggests that CNAs profiling may be a potential prognostic classifier in resected LAUD patients. Amplifications of 12p12.1 and KDM5A might be prognostic biomarkers for LUAD, and amplification of ERBB2 and deletion of 4q34.3 predicted early relapse after adjuvant chemotherapy. These novel findings may provide implication for better implementation of precision therapy for lung cancer patients.
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Qi F, Chen B, Wang J, Lin X, Qi S, Yang J, Zhou S, Wang S, Gui L, Fang H, Liu P, Song Y, Yang S, Li Y, Dong M. Upfront radiation is essential for high-risk early-stage extranodal NK/T-cell lymphoma, nasal type: comparison of two sequential treatment modalities combining radiotherapy and GDP (gemcitabine, dexamethasone, and cisplatin) in the modern era. Leuk Lymphoma 2019; 60:2679-2688. [PMID: 31298062 DOI: 10.1080/10428194.2019.1599111] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Early/upfront radiation was associated with improved survivals compared with late radiation for early-stage NK/T-cell lymphoma (NKTCL) in the old era when anthracycline-base chemotherapy (CT) prevailed. However, in the modern era of effective l-asparaginase/gemcitabine-based CT, the optimal timing of radiation is unclear. In this study, 75 patients with newly diagnosed NKTCL, who were treated with combined involved-field intensity-modulated radiotherapy and GDP (gemcitabine, dexamethasone, and cisplatin) were retrospectively reviewed, including 45 from the RT + CT group and 30 from the CT + RT ± CT group. Compared with CT + RT ± CT, RT + CT sequence achieved superior progression-free survival (5-year PFS: 81.6% vs. 56.0%, p = .017) and locoregional control (LRC) (90.8% vs. 66.9%; p = .020). Responses, overall survivals or adverse event incidences did not differ across the groups. Upfront RT was a powerful prognostic variable for favorable PFS (HR 0.302; 95% CI: 0.125-0.729; p = .008). It indicated that upfront RT administration remains vital in enhancing LRC and survival for localized NKTCL in the modern era.
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