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Rose KN, Zorlu M, Xue X, Fassini A, Cai W, Lin S, Webb P, Schwarzschild MA, Chen X, Gomperts SN. Neuroprotection of low dose carbon monoxide in Parkinson's disease models commensurate with the reduced risk of Parkinson's among smokers. bioRxiv 2024:2023.05.27.542565. [PMID: 37398030 PMCID: PMC10312428 DOI: 10.1101/2023.05.27.542565] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Paradoxically, cigarette smoking is associated with a reduced risk of Parkinson's disease (PD). This led us to hypothesize that carbon monoxide (CO) levels, which are constitutively but modestly elevated in smokers, might contribute to neuroprotection. Using rodent models of PD based on α-synuclein (αSyn) accumulation and oxidative stress, we show that low-dose CO mitigates neurodegeneration and reduces αSyn pathology. Oral CO administration activated signaling cascades mediated by heme oxygenase-1 (HO-1), which have been implicated in limiting oxidative stress, and in promoting αSyn degradation, thereby conferring neuroprotection. Consistent with a neuroprotective effect of smoking, HO-1 levels in cerebrospinal fluid were higher in human smokers compared to nonsmokers. Moreover, in PD brain samples, HO-1 levels were higher in neurons without αSyn pathology. Thus, CO in rodent PD models reduces pathology and increases oxidative stress responses, phenocopying possible protective effects of smoking evident in PD patients. These data highlight the potential for low-dose CO modulated pathways to slow symptom onset and limit pathology in PD patients.
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Han Z, Xue X, Wang J, Lu D. Tuberous sclerosis complex associated lymphangioleiomyomatosis. QJM 2023; 116:873-874. [PMID: 37286375 PMCID: PMC10593382 DOI: 10.1093/qjmed/hcad125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Indexed: 06/09/2023] Open
Affiliation(s)
- Z Han
- Department of Gerontology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - X Xue
- Department of Gerontology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - J Wang
- Department of Gerontology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - D Lu
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory Diseases, Shandong Institute of Anesthesia and Respiratory Critical Medicine, Jinan, China
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Zou P, Lin R, Fang Z, Chen J, Guan H, Yin J, Xue X, Chen M, Lang J. A Ferroptosis Microneedle Integrated Wireless Implanted Photodynamic Therapy Pellet for Cancer Treatment. Int J Radiat Oncol Biol Phys 2023; 117:e280. [PMID: 37785049 DOI: 10.1016/j.ijrobp.2023.06.1261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Effective, non-toxic, and targeted induction of lung cancer cell death is urgently needed. The goal of this research is to create a new implantable battery-free therapeutic pellet with integrated drug microneedles that allows for wireless photodynamic therapy (PDT) and targeted release of a ferroptosis inducer (Imidazole ketone erastin, IKE) into tumor tissue. MATERIALS/METHODS A wireless power unit, μ-LED illuminant, a flexible control circuit, and an IKE-stored biodegradable microneedle enclosed in polydimethylsiloxane (PDMS) were all built into an integrated therapeutic pellet. Lung cancer cells were used to illustrate the in vitro viability and molecular biological processes of this system. Therapeutic pellet implanted into the LLC xenograft C57BL/6 model. PDT was conducted by 660 nm laser irradiation after injecting a photosensitizer (Chlorin e6, Ce6) and targeted IKE released into the tumor. Systematically analyzing the therapeutic effects on lung cancer and toxic side-effects. RESULTS The PDT-IKE group reduced cellular viability by 90% compared to the control group at the cellular level. In mouse model studies, the PDT-IKE group suppressed tumors at 78.8%, three or four times greater than the PDT (26.6%) or IKE (19.2%) group alone. The PDT-IKE group also controlled IKE release more precisely with heated electrodes, reducing nephrotoxicity and improving safety. Moreover, the combination of PDT and IKE can effectively cause ferroptosis in tumor cells, both in vivo and in vitro. CONCLUSION A new implantable battery-free therapeutic pellet was designed for wireless PDT with integrated IKE microneedles to induce obvious ferroptosis in lung cancer. The proposed pellet would provide a promising strategy for cancer treatment.
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Affiliation(s)
- P Zou
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China; Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center University of Electronic Science and Technology of China affiliated Cancer Hospital Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
| | - R Lin
- School of Physics, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Z Fang
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China; Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center University of Electronic Science and Technology of China affiliated Cancer Hospital Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
| | - J Chen
- Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center University of Electronic Science and Technology of China affiliated Cancer Hospital Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, Sichuan, China; Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - H Guan
- School of Physics, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - J Yin
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China; Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center University of Electronic Science and Technology of China affiliated Cancer Hospital Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
| | - X Xue
- Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center University of Electronic Science and Technology of China affiliated Cancer Hospital Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, Sichuan, China; School of Physics, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - M Chen
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China; Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center University of Electronic Science and Technology of China affiliated Cancer Hospital Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
| | - J Lang
- Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center University of Electronic Science and Technology of China affiliated Cancer Hospital Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, Sichuan, China; Department of Radiation Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China
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Zhang C, Wang X, Ding Z, Zhou H, Liu P, Xue X, Cao W, Zhu Y, Chen J, Shen W, Yang S, Wang F. [Electroencephalographic microstates in vestibular schwannoma patients with tinnitus]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:793-799. [PMID: 37313821 DOI: 10.12122/j.issn.1673-4254.2023.05.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To explore the biomarkers of tinnitus in vestibular schwannoma patients using electroencephalographic (EEG) microstate technology. METHODS The EEG and clinical data of 41 patients with vestibular schwannoma were collected. All the patients were evaluated by SAS, SDS, THI and VAS scales. The EEG acquisition time was 10-15 min, and the EEG data were preprocessed and analyzed using MATLAB and EEGLAB software package. RESULTS Of the 41 patients with vestibular schwannoma, 29 patients had tinnitus and 12 did not have tinnitus, and their clinical parameters were comparable. The average global explanation variances of the non-tinnitus and tinnitus groups were 78.8% and 80.1%, respectively. The results of EEG microstate analysis showed that compared with those without tinnitus, the patients with tinnitus had an increased frequency (P=0.033) and contribution (P=0.028) of microstate C. Correlation analysis showed that THI scale scores of the patients were negatively correlated with the duration of microstate A (R=-0.435, P=0.018) and positively with the frequencies of microstate B (R=0.456, P=0.013) and microstate C (R=0.412, P=0.026). Syntax analysis showed that the probability of transition from microstate C to microstate B increased significantly in vestibular schwannoma patients with tinnitus (P=0.031). CONCLUSION EEG microstate features differ significantly between vestibular schwannoma patients with and without tinnitus. This abnormality in patients with tinnitus may reflect the potential abnormality in the allocation of neural resources and the transition of brain functional activity.
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Affiliation(s)
- C Zhang
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- Medical School of Chinese PLA, Beijing 100853, China
| | - X Wang
- Medical School of Chinese PLA, Beijing 100853, China
| | - Z Ding
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - H Zhou
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - P Liu
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - X Xue
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - W Cao
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - Y Zhu
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - J Chen
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - W Shen
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - S Yang
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - F Wang
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
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Zhu L, Lang JH, Ren C, Zhang YL, Chen DJ, Chen L, Chen YL, Cui MH, Di W, Duan H, Hao M, Huang XH, Li PL, Mao YD, Qi HB, Shi HR, Song L, Wang YF, Xu KH, Xu XX, Xue X, Yang HX, Yao SZ, Zhang GN, Zhang HW, Zhang SL, Zhou HM, Zhou YF, Zhu WG. [The Chinese guideline for prevention of pelvic and abdominal adhesions after obstetric and gynecologic surgery (2023 edition)]. Zhonghua Fu Chan Ke Za Zhi 2023; 58:161-169. [PMID: 36935192 DOI: 10.3760/cma.j.cn112141-20220822-00523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
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Chen Y, Xue X, Liu FJ, Wang SR, Zhou C, Wang MZ, Zhang XX. [Comparison of the therapeutic effects of optic nerve sheath fenestration and medication on papilledema due to cerebral venous thrombosis]. Zhonghua Yi Xue Za Zhi 2023; 103:259-264. [PMID: 36660786 DOI: 10.3760/cma.j.cn112137-20220910-01918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Objective: To compare the therapeutic effects of optic nerve sheath fenestration (ONSF) and medication on papilledema induced by cerebral venous thrombosis (CVT). Methods: Patients with papilledema induced by CVT in Beijing Tiantan Hospital and Xuanwu Hospital from January 2017 to July 2022 were retrospectively enrolled and were divided into two groups according to the treatment strategies they underwent, with 76 cases (107 eyes) in ONSF group and 35 cases (69 eyes) in medication group. The degree of papilledema was evaluated by the modified Frisén's grading (grade 0-1 was defined as mild, grade 2-3 was moderate, and grade 4-5 was severe edema). The mean defect (MD) of visual field, the degree of papilledema, and the mean retinal nerve fiber layer (RNFL) thickness in different subgroups were compared between baseline versus 1 month after ONSF or medication. Results: There were 76 cases in ONSF group (26 males and 50 females), and aged (35.3±11.4) years. Meanwhile, there were 35 cases in medication group (22 males and 13 females), and aged (35.2±11.0) years. Compared with baseline, MD were improved in both moderate [(-8.4±6.6) vs (-11.8±8.6) db, P=0.021] and severe [(-8.1±5.3) vs (-11.4±6.9) db, P<0.001] papilledema subgroups after ONSF, while there was an improvement in mild papilledema subgroup [(-1.5±5.3) vs (-3.4±5.1) db, P<0.001] after medication. The papilledema (Frisén's scores) in both ONSF group (P<0.001) and medication group (P=0.010) was improved. Compared with baseline, the mean RNFL decreased in mild [(78.5±13.5) vs (91.0±17.4) μm, P=0.002], moderate [(126.6±67.6) vs (154.8±77.9) μm, P=0.011] and severe [(179.0±70.9) vs (230.6±89.7) μm, P=0.001] papilledema subgroups after ONSF, while the mean RNFL decreased [(142.0±29.3) vs (158.8±22.7) μm, P=0.020] in moderate papilledema subgroup after medication. Conclusions: ONSF might attenuate CVT-mediated papilledema, and improve the visual function in patients with moderate and severe papilledema. Likewise, patients with mild papilledema could also get benefit from medication.
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Affiliation(s)
- Y Chen
- Department of Ophthalmology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - X Xue
- Department of Ophthalmology, Beijing Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - F J Liu
- Department of Ophthalmology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - S R Wang
- Department of Ophthalmology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - C Zhou
- Beijing Institute of Brain Disorders of Capital Medical University, Beijing 100069, China
| | - M Z Wang
- Department of Ophthalmology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - X X Zhang
- Department of Ophthalmology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
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Hu Y, Liu HX, Xu D, Xue X, Xu X. The Anti-Inflammatory Effect of miR-140-3p in BMSCs-Exosomes on Osteoarthritis. Acta Chir Orthop Traumatol Cech 2023; 90:267-276. [PMID: 37690040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
PURPOSE OF THE STUDY Articular cartilage injury is a common disease in daily life, with a high incidence. The aim of this study was to investigate the effect and mechanism of miRNA-140-3p in bone mesenchymal stem cells (BMSCs)-derived exosomes under hypoxia on inflammatory articular chondrocytes. MATERIAL AND METHODS To simulate the pathological status of arthritis, rat chondrocytes were used to establish the osteoarthritis (OA) model by IL-1β (10 μg/ml) as a modulating in vitro, and exosomes were isolated by differential ultra-high speed centrifugation. The cell counting kit-8, wound healing and flow cytometry assays were utilized to assess proliferation, migration and apoptosis of chondrocytes, respectively. Lipogenic and chondrogenic differentiation of chondrocytes were detected by oil red O staining and toluidine blue staining individually. The expressions of miR-140-3p and chondrocyte-specific gene mRNA were investigated using qRT-PCR. Western blot was applied to assess chondrocyte associated proteins and BMSC-Exo surface protein markers, and immunohistochemistry was adopted to detect the staining of collagen I and II. RESULTS Under scanning electronic microscope, the shape of exosomes was almost round. Exosome treatment prominently impaired the inhibition of chondrocytes' proliferative and migrative ability by IL-1β. It was found hypoxia had a more marked impact on proliferation, expression of collagen II and apoptosis in OA chondrocytes than normoxia, as well as a stronger effect on weakening adipose differentiation and enhancing chondrogenic differentiation in inflammatory chondrocytes. Furthermore, incubation with BMSC-Exo overexpressing miR-140-3p can remarkably increase the survival rate and migration in inflammatory chondrocytes. In addition, overexpression of miR-140-3p was found to enhance the chondrogenic differentiation of inflammatory chondrocytes. Furthermore, we found that the healing effect of exosomes on inflammatory chondrocytes under hypoxic conditions was produced by a rise in miR-140-3p expression within them and that hypoxia-mediated upregulation of miR-140-3p expression occurred through HIF-1α. CONCLUSIONS Under hypoxia, BMSC-Exo enhanced the chondrogenic phenotype, increased the viability of inflammatory chondrocytes. The overexpression of miR-140-3p in BMSC-Exo is beneficial to protect joints and delaying the pathogenesis in OA. Key words: HIF-1α, apoptosis, lipogenic differentiation, chondrogenic differentiation.
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Affiliation(s)
- Y Hu
- The Department of Sports Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - H X Liu
- The Department of Sports Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - D Xu
- The Department of Sports Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - X Xue
- The Department of Sports Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - X Xu
- The Department of Sports Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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Hu YL, Ai P, Jia XJ, Zhang DY, Xue X, Deng L, Chen W, Yang GL, Chang LJ, Xin ZJ. [Analysis of epidemiological characteristics of pulmonary tuberculosis patients in Fengtai District, Beijing City from 2011 to 2021]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1302-1306. [PMID: 36207895 DOI: 10.3760/cma.j.cn112150-20220408-00338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To analyze the epidemiological characteristics of pulmonary tuberculosis (PTB) in Fengtai District from 2011 to 2021. Methods: A retrospective study was conducted, the data of PTB patients in Fengtai District from 2011 to 2021 were collected in Chinese disease prevention and Control Information System, which included etiological classification, gender, age, occupation, onset time, demographic information etc. the epidemiological characteristics of reported PTB patients was analysis. Results: A total of 10 342 cases of PTB were reported from 2011 to 2021 in Fengtai District, with an average annual reported incidence rate of 42.87/ 100 000. The incidence rate was the highest in 2012(75.89/100 000), and significantly declined from 2013, which declined to 29.70/100 000 in 2017. It showed a slow rise from 2018 to 2021. The difference was statistically significant (χ2=1 471.77,P<0.001).There were 2 975 cases of etiologic positive PTB from 2011 to 2021, and 76 cases of Rifampicin-resistant PTB from 2017 to 2021. The ratio of male cases to female was 1.75, the average annual incidence rate of male (53.94/100 000) was higher, than female(31.57/100 000).(χ2=704.01,P<0.001). Among all age groups, 25-29 years group, 20-24 years group and 30-34 years group had the highest proportion, which were 1 506 cases (14.56%) , 1 292 cases (12.49%) and 1 024 cases (9.90%) respectively. The average annual incidence rate was the lowest in the group less than 10 years old (1.43/100 000), and the highest in the group 85 years old and over (195.20/100 000), the difference was statistically significant(χ2=3164.24, P<0.001). The top occupations from high to low were housework and unemployment (2 917 cases, 28.21%), retirees (2 308 cases, 22.32%), workers (1 047 cases, 10.12%), cadres and staff (950 cases, 9.19%), farmers (860 cases, 8.32%), business services (698 cases, 6.75%), teachers and students (455 cases, 4.40%). Conclusion: From 2011 to 2021, the incidence rate of PTB was decreased from 2012 to 2017, and slowly increased lately in Fengtai District. The epidemiological characteristics of PTB vary in different age and gender.
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Affiliation(s)
- Y L Hu
- Department of Tuberculosis Preventing and Control,Fengtai District Center for Disease Control and Preventing, Beijing 100071, China
| | - P Ai
- Department of Tuberculosis Preventing and Control,Fengtai District Center for Disease Control and Preventing, Beijing 100071, China
| | - X J Jia
- Department of Tuberculosis Preventing and Control,Fengtai District Center for Disease Control and Preventing, Beijing 100071, China
| | - D Y Zhang
- Department of Tuberculosis Preventing and Control,Fengtai District Center for Disease Control and Preventing, Beijing 100071, China
| | - X Xue
- Department of Tuberculosis Preventing and Control,Fengtai District Center for Disease Control and Preventing, Beijing 100071, China
| | - L Deng
- Department of Tuberculosis Preventing and Control,Fengtai District Center for Disease Control and Preventing, Beijing 100071, China
| | - W Chen
- Department of Tuberculosis Preventing and Control,Fengtai District Center for Disease Control and Preventing, Beijing 100071, China
| | - G L Yang
- Department of Tuberculosis Preventing and Control,Fengtai District Center for Disease Control and Preventing, Beijing 100071, China
| | - L J Chang
- Central Office of Fengtai District Center for Disease Control and Preventing, Beijing 100071, China
| | - Z J Xin
- Central Office of Fengtai District Center for Disease Control and Preventing, Beijing 100071, China
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Wang Y, Shao C, Pan M, Xue X, Yan X. MA04.07 A Controlled Study of Pathological T- staging and Imaging T-staging of NSCLC Based on Artificial Intelligence. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Xue X, Liu G, Tang Q, Shi H, Wu D, Jin C, Zhao H, Wei Y, Zhang Y. Multi-elements characteristic and potential risk of heavy metals in MOUTAN CORTEX from Anhui Province, China. Int J Environ Sci Technol (Tehran) 2022; 20:7829-7842. [PMID: 35968156 PMCID: PMC9361998 DOI: 10.1007/s13762-022-04402-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 04/05/2022] [Accepted: 07/11/2022] [Indexed: 06/12/2023]
Abstract
To ensure the quality and safety of herbs, the content of 54 elements in MOUTAN CORTEX (MC) was determined by the ICP-AES and ICP-MS, and the health risks of Cu, As, Cd, Pb, Hg and rare earth elements (REEs) were assessed. These herbs were collected from 5 producing areas in Anhui Province, China, namely Wuhu, Tongling, Bozhou, Xuancheng and Chizhou. The multi-elements fingerprint identification of MC in Anhui Province was established. The total amount of macro-elements from Wuhu and Tongling is significantly lower than Bozhou. Among all MC from 5 producing areas, the highest content is Ca. Except for Bozhou, the content of macro-elements and REES in the other 4 origins of MC is from highest to lowest: Ca > K > Mg > Al > Fe > Na and Ce > La > Nd > Y > Pr > Er > Yb > Eu > Ho > Tb > Tm > Lu. The chemical forms of Cd in MC from Bozhou with the highest percentage were PH2O of high toxicity and migration, while the other 4 regions were PNaCl of low activity and mobility. There was a great difference in the content of inorganic elements and chemical forms of Cd between the MC produced from the plain (Bozhou) and the hilly areas (Wuhu, Tongling, Chizhou and Xuancheng). Except for Cd, the content of Cu, As, Pb and Hg in MC did not exceed the limit. The results of PTWIFact and ADI for Cd and REEs showed that MC herbs did not pose a risk to human health. Supplementary Information The online version contains supplementary material available at 10.1007/s13762-022-04402-6.
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Affiliation(s)
- X. Xue
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026 Anhui China
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
- Anhui Province Key Laboratory of Modern Chinese Medicine, Hefei, 230012 China
| | - G. Liu
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026 Anhui China
| | - Q. Tang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
| | - H. Shi
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
| | - D. Wu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
- Anhui Province Key Laboratory of Modern Chinese Medicine, Hefei, 230012 China
| | - C. Jin
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
- Anhui Province Key Laboratory of Modern Chinese Medicine, Hefei, 230012 China
| | - H. Zhao
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
- Anhui Province Key Laboratory of Modern Chinese Medicine, Hefei, 230012 China
| | - Y. Wei
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026 Anhui China
| | - Y. Zhang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012 China
- Anhui Province Key Laboratory of Modern Chinese Medicine, Hefei, 230012 China
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De Marco D, Mamane S, Choo W, Mullie L, Xue X, Afilalo M, Afilalo J. Muscle Area and Density Assessed by Abdominal Computed Tomography in Healthy Adults: Effect of Normal Aging and Derivation of Reference Values. J Nutr Health Aging 2022; 26:243-246. [PMID: 35297466 DOI: 10.1007/s12603-022-1746-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND A growing body of evidence has demonstrated the prognostic value of skeletal muscle area and quality measured by computed tomography (CT) as biomarkers of sarcopenia and frailty. However, there exists little data in normal healthy subjects to inform reference values and determine the effects of advancing age and sex on CT muscle parameters. METHODS Abdominal CT images of patients (20-80 years of age) presenting to the emergency department with benign abdominal symptoms and no significant medical comorbidities were retrospectively collected from 2014 to 2017. Psoas and abdominal wall muscle area (PMA, WMA) and density (PMD, WMD) at the level of the L4 vertebrae were measured with the CoreSlicer.com web app. The normal reference range was computed by non-parameteric 2.5th and 97.5th percentiles stratified by sex and restricted by age to the younger subgroup (20-39 years of age). RESULTS The cohort consisted of 390 otherwise healthy patients (162 males, 228 females). The lower reference range for PMA was <22.0 cm2 in males and <11.1 cm2 in females, and for WMA was <112.2 cm2 in males and <75.6 cm2 in females. There was a graded decline observed in PMA and WMA among older compared to younger adults (especially ≥60 years of age) (P<0.001) and among females compared to males (P<0.001). There was also a graded decline observed in PMD and WMD among older compared to younger adults (P<0.001), irrespective of sex. CONCLUSION This study has defined the normal reference values and age-associated down-trend for CT muscle parameters at L4 in a healthy population using an accessible web-based software, which help contextualize and interpret these imaging biomarkers of sarcopenia in clinical care.
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Affiliation(s)
- D De Marco
- Jonathan Afilalo, MD, MSc, FACC, FRCPC, Associate Professor, McGill University, Co-Director, McGill Integrated Cardiac Imaging Fellowship Program, Division of Cardiology and Centre for Clinical Epidemiology, Jewish General Hospital, 3755 Cote Ste Catherine Rd, E-222, Montreal, QC H3T 1E2, Phone: (514) 340-8222 | Fax: (514) 221-3785 |
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Szilagyi A, Xue X. A195 GEOEPIDEMIOLOGICAL CHANGES DUE TO ALTERATIONS IN DIAGNOSTIC ROME CRITERIA FOR IRRITABLE BOWEL SYNDROME. J Can Assoc Gastroenterol 2022. [DOI: 10.1093/jcag/gwab049.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Irritable bowel syndrome (IBS) is a positive diagnosis based on consensus opinions. The Rome (R) criteria, have gone through 4 rounds. R4 restricted diagnosis of IBS over R3, reducing global prevalence. Previously, there were no correlations of world distributions of IBS and Inflammatory Bowel Disease [IBD](Lovell). There are also epidemiological studies showing relationships between IBD and national wealth.
Aims
We reevaluate relationships among different R criteria and latitude(Lat), lactose digestion status (LNP), human development index(HDI), gross domestic product/capita(GDP/c), Crohn’s disease (CD and ulcerative colitis (UC) incidence(i) and prevalence(p).
Methods
Literature on world prevalence of national IBS (Oka,Sperber), IBD rates (Ng), and GDP (Lopez Ruiz) (4) were sought on PubMed and Google Scholar.National HDI(08 or 2016) were available on the internet (http://hdr.undp.org/en/data). National lactase distributions and latitudes were quoted (Szilagyi). Target dates were for the year 2008±8yrs. After log transformation of IBD incidence, Pearson’s correlations were carried out.(strong at; r ≥0.7, moderate ≥0.5, weak ≤ 0.49, negligible ≤ 0.3). (significance was p<0.05).
Results
Correlations of HDI08 and HDI16 was 0.98. Comparisons of R2 and a composite based on Manning, R 1 and 2 (Lovell) was r = 0.96 (N21 countries), Correlation of R 3 and 4 were r = 0.85 (N17). Correlations of R2 and R3 or R4 were negligible (r = -0.2 (n15) and -0.12 (N22). Correlations of R2 and both economic metrics were weak but significant (r = 0.42 – r = 0.49, p < 0.03 - < 0.001). However, correlations of metrics with R3 were non significant and negligible with R4. Comparisons of R2 with LNP or Lat were negligible, but those of R3 or R4 with Lat were significant. Comparisons of R3 with CDp showed a strong correlation while R4 showed a weak but significant correlation with UCi. R2 had negligible correlations with IBD.
Conclusions
Although, these results are based on limited data variations in R criteria have changed relations with IBS prevalence.Earlier R criteria showed increased IBS in poorer nations. The recent R3 and R4 criteria are independent of national economy, but show more relations with increasing latitudes. Consequences of the change include R3 and 4 reflecting western society symptoms perhaps linking it more with IBD.It is unclear if this new relationship incorporates an irritable inflammatory bowel syndrome (Gajula).The generalizability therefore of the new R4 criteria may still be limited.
Table: Rome criteria compared to variables.
Statistical significance * < 0.03, ** ≤ 0.05
Funding Agencies
None
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Affiliation(s)
- A Szilagyi
- Medicine, Gastroenterology, Sir Mortimer B Davis Jewish General Hospital, Montreal, QC, Canada
| | - X Xue
- Medicine, Gastroenterology, Sir Mortimer B Davis Jewish General Hospital, Montreal, QC, Canada
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Sun J, Zhang L, Pang R, Zhao X, Cheng J, Zhang Y, Xue X, Ren X, Zhu W, Li S, Zhang Z. Negative Differential Friction Predicted in 2D Ferroelectric In 2 Se 3 Commensurate Contacts. Adv Sci (Weinh) 2022; 9:e2103443. [PMID: 34761558 PMCID: PMC8805561 DOI: 10.1002/advs.202103443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/07/2021] [Indexed: 06/13/2023]
Abstract
At the macroscopic scale, the friction force (f) is found to increase with the normal load (N), according to the classic law of Da Vinci-Amontons, namely, f = µN, with a positive definite friction coefficient (μ). Here, first-principles calculations are employed to predict that, the static force f, measured by the corrugation in the sliding potential energy barrier, is lowered upon increasing the normal load applied on one layer of the recently discovered ferroelectric In2 Se3 over another commensurate layer of In2 Se3 . That is, a negative differential friction coefficient μ can be realized, which thus simultaneously breaking the classic Da Vinci-Amontons law. Such a striking and counterintuitive observation can be rationalized by the delicate interplay of the interfacial van der Waals repulsive interactions and the electrostatic energy reduction due to the enhancement of the intralayer SeIn ionic bonding via charge redistribution under load. The present findings are expected to play an instrumental role in design of high-performance solid lubricants and mechanical-electronic nanodevices.
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Affiliation(s)
- Jingge Sun
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001China
| | - Lili Zhang
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001China
| | - Rui Pang
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001China
| | - Xing‐Ju Zhao
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001China
| | - Jiangtao Cheng
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001China
| | - Yimin Zhang
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001China
| | - Xinlian Xue
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001China
| | - Xiaoyan Ren
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001China
| | - Wenguang Zhu
- Key Laboratory of Strongly‐Coupled Quantum Matter PhysicsChinese Academy of SciencesSchool of Physical SciencesUniversity of Science and Technology of ChinaHefeiAnhui230026China
- International Center for Quantum Design of Functional Materials (ICQD)Hefei National Laboratory for Physical Sciences at the Microscale, and Synergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of ChinaHefeiAnhui230026China
| | - Shunfang Li
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001China
| | - Zhenyu Zhang
- International Center for Quantum Design of Functional Materials (ICQD)Hefei National Laboratory for Physical Sciences at the Microscale, and Synergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of ChinaHefeiAnhui230026China
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Thrasher K, Xue X, Benson D, Renfrow M, Keeling K, Bedwell D. 606: Evaluating protein variants created by readthrough of CFTR nonsense mutations. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)02029-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Klugman M, Fazzari M, Xue X, Ginsberg M, Rohan TE, Halmos B, Hanna DB, Shuter J, Hosgood HD. The associations of CD4 count, CD4/CD8 ratio, and HIV viral load with survival from non-small cell lung cancer in persons living with HIV. AIDS Care 2021; 34:1014-1021. [PMID: 34074183 PMCID: PMC8633167 DOI: 10.1080/09540121.2021.1934380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
HIV status may influence survival from non-small cell lung cancer (NSCLC). Among NSCLC patients in the Bronx, NY, we assessed (1) associations of CD4 count, CD4/CD8 ratio and HIV viral load (VL) with survival and (2) prognostic factors among persons living with HIV (PLWH). We compared survival from NSCLC diagnosis (2004-2017) between HIV-negative persons (HIV-, n=2,881) and PLWH (n=88) accounting for clinical and sociodemographic factors. HIV-survival was also compared with PLWH, dichotomized by CD4 (<200 vs. ≥200cells/µL), CD4/CD8 (median, <0.43 vs. ≥0.43) and VL (<75 vs. ≥75copies/mL) at NSCLC diagnosis. Among PLWH, we assessed the relationships of CD4, CD4/CD8, and VL with survival, adjusting for age, sex, and cancer stage. PLWH with CD4< 200cells/µL had lower survival than HIV- [hazard ratio, 95% confidence interval [HR(95%CI)]=1.86(0.98-3.55)]. Survival was similar between PLWH with CD4≥ 200cells/µL and HIV- [HR(95%CI) = 0.90(0.61-1.33)]. Results were similar when categorizing PLWH by CD4/CD8 [vs. HIV-: low CD4/CD8: HR(95%CI) = 1.74(1.07-3.89); high CD4/CD8: HR(95%CI) = 0.63(0.37-1.07)] and VL [vs. HIV-: <75copies/mL: HR(95%CI) = 0.74(0.46-1.21), ≥75copies/mL: HR(95%CI) = 1.41(0.88-2.27)]. Among PLWH, CD4< 200cells/µL was associated with worse survival [vs. CD4≥ 200cells/µL: HR(95%CI) = 2.37(1.14-4.92)]. CD4, CD4/CD8, and VL may be prognostic markers for PLWH with NSCLC, suggesting immune status may be important in NSCLC survival among PLWH.
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Affiliation(s)
- M Klugman
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - M Fazzari
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - X Xue
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - M Ginsberg
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - T E Rohan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - B Halmos
- Department of Medicine (Oncology), Montefiore Medical Center, Bronx, NY, USA
| | - D B Hanna
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - J Shuter
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Medicine (Infectious Diseases), Montefiore Medical Center, Bronx, NY, USA
| | - H D Hosgood
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
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Xue X, Li XY, Zhao S, Zhang S. Association of waist circumstance with long-term all-cause mortality and cardiac death in patients with a pacemaker. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Objective
To explore the association of abdominal obesity with long-term prognosis in patients with a pacemaker.
Methods
Patients in the Summit study were enrolled and divided into groups according to baseline waist circumference: with obesity, normal, and lean. Regular follow-up was performed. The primary endpoint was all-cause mortality, and the secondary endpoint was cardiac death.
Results
In total, 492 patients were included in the analysis. The average baseline waist circumference was 84.2 ± 12.7 cm, and abdominal obesity was observed in 37.6% of patients. During a mean follow-up of 67.2 ± 17.5 months,71 all-cause mortality (14.40%) and 24 cardiac death (4.87%) events occurred. All-cause mortality was associated with higher waist circumference (87.6 versus 83.6 cm, P = 0.014), but not body mass index (23.6 versus 23.5, P= 0.930). Multivariate Cox analysis showed compared with patients with abdominal obesity, lean patients had a significant survival benefit in both all-cause mortality (HR 0.188, 95%CI 0.070-0.505, P = 0.001) and cardiac death (HR 0.097, 95% CI 0.012-0.792, P = 0.029).
Conclusions
Waist circumference was associated with long-term all-cause mortality and cardiac death. Baseline waist circumference less than 80 cm for men and less than 75 cm for women had a significant survival benefit.
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Affiliation(s)
- X Xue
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular D, Beijing, China
| | - XY Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular D, Beijing, China
| | - S Zhao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular D, Beijing, China
| | - S Zhang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular D, Beijing, China
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Shao S, Zheng N, Mao N, Xue X, Cui J, Gao P, Wang B. A triple-classification radiomics model for the differentiation of pleomorphic adenoma, Warthin tumour, and malignant salivary gland tumours on the basis of diffusion-weighted imaging. Clin Radiol 2021; 76:472.e11-472.e18. [PMID: 33752882 DOI: 10.1016/j.crad.2020.10.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 10/02/2020] [Indexed: 01/08/2023]
Abstract
AIM To develop and validate a triple-classification radiomics model for the preoperative differentiation of pleomorphic adenoma (PA), Warthin tumour (WT), and malignant salivary gland tumour (MSGT) based on diffusion-weighted imaging (DWI). MATERIALS AND METHODS Data from 217 patients with histopathologically confirmed salivary gland tumours (100 PAs, 68 WTs, and 49 MSGTs) from January 2015 to March 2019 were analysed retrospectively and divided into a training set (n=173), and a validation set (n=44). A total of 396 radiomic features were extracted from the DWI of all patients. Analysis of variance (ANOVA) and least absolute shrinkage and selection operator (LASSO) regression were used to select radiomic features, which were then constructed using three classification models, namely, logistic regression method (LR), support vector machine (SVM), and K-nearest neighbor (KNN). The diagnostic performance of the radiomics model was quantified by the receiver operating characteristic (ROC) curve and area under the ROC curve (AUC) of the training and validation data sets. RESULTS The 20 most valuable features were investigated based on the LASSO regression. LR and SVM methods exhibited better diagnostic ability than KNN for multiclass classification. LR and SVM had the best performance and yielded the AUC values of 0.857 and 0.824, respectively, in the training data set and the AUC values of 0.932 and 0.912, respectively, in the validation data set of MSGT diagnosis. CONCLUSION DWI-based triple-classification radiomics model has predictive value in distinguishing PA, WT, and MSGT, which can be used for preoperative auxiliary diagnosis in clinical practice.
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Affiliation(s)
- S Shao
- Department of Radiology, Jining No. 1 People's Hospital, Jining, Shandong, 272011, PR China
| | - N Zheng
- Department of Radiology, Jining No. 1 People's Hospital, Jining, Shandong, 272011, PR China
| | - N Mao
- Department of Radiology, Yantai Yuhuangding Hospital, The Affiliated Hospital of Qingdao University, Yantai, 264000, Shandong, PR China
| | - X Xue
- Department of Radiology, Jining No. 1 People's Hospital, Jining, Shandong, 272011, PR China
| | - J Cui
- Huiying Medical Technology Co., Ltd., Beijing, 100192, PR China
| | - P Gao
- Department of Radiology, Jining No. 1 People's Hospital, Jining, Shandong, 272011, PR China.
| | - B Wang
- Medical Imaging Research Institute, Binzhou Medical University, Yantai, 264003, Shandong, PR China.
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Naseer QA, Xue X, Wang X, Dang S, Din SU, Kalsoom, Jamil J. Synthesis of silver nanoparticles using Lactobacillus bulgaricus and assessment of their antibacterial potential. BRAZ J BIOL 2021; 82:e232434. [PMID: 33681895 DOI: 10.1590/1519-6984.232434] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 07/13/2020] [Indexed: 11/21/2022] Open
Abstract
Many pathogenic strains have acquired multidrug-resistant patterns in recent a year, which poses a major public health concern. The growing need for effective antimicrobial agents as novel therapies against multidrug-resistant pathogens has drawn scientist attention toward nanotechnology. Silver nanoparticles are considered capable of killing multidrug-resistant isolates due to their oligo-dynamic effect on microorganisms. In this research study NPs were synthesized using the gram-positive bacteria Lactobacillus bulgaricus and its activity against selected pathogenic strains. Lactobacillus bulgaricus pure cultures were isolated from raw milk and grown in "De Man, Rogasa, and Sharp" broth for synthesis of nanoparticles. Lactobacillus bulgaricus culture was centrifuged and Cell- free supernatant of it was employed with aqueous silvery ions and evaluated their antibacterial activities against bacterial strains i.e. Staphylococcus aureus, Staphylococcus epidermidis and Salmonella typhi using agar well diffusion assay. Antibiotic profiling against selected pathogenic strains were also conducted using disc diffusion method. The synthesis and characterization of silver nanoparticles were monitored primarily by the conversion of the pale-yellow color of the mixture into a dark-brown color and via ultraviolet-visible absorption spectroscopy and Scanning electron microscopy respectively. The result showed that that AgNPs with size (30.65-100 nm) obtained from Lactobacillus bulgaricus were found to exhibit antibacterial activities against selected bacterial strains. Taken together, these findings suggest that Lactobacillus bulgaricus has great potential for the production of AgNPs with antibacterial activities and highly effective in comparison to tested antibiotics.
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Affiliation(s)
- Q A Naseer
- Jiangsu University, The Affiliated Hospital, Department of General Surgery, Zhenjiang, Jiangsu, China.,Jiangsu University, School of Medicine, Department of Immunology and Institute of Laboratory Clinical Diagnostics, Zhenjiang, Jiangsu, China
| | - X Xue
- Pucheng Hospital, Department of General Surgery, Pucheng, Shanxi, China
| | - X Wang
- Pucheng Hospital, Department of General Surgery, Pucheng, Shanxi, China
| | - S Dang
- Jiangsu University, The Affiliated Hospital, Department of General Surgery, Zhenjiang, Jiangsu, China.,Pucheng Hospital, Department of General Surgery, Pucheng, Shanxi, China
| | - S U Din
- Quaid I Azam University, Department of Microbiology, Islamabad, Pakistan
| | - Kalsoom
- University of Swabi, Department of Microbiology, Swabi, KP, Pakistan
| | - J Jamil
- University of Swabi, Department of Microbiology, Swabi, KP, Pakistan
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Wang M, Li S, Xue X, Wei X, Ye Z, Su Y, Li L, Xu Z, Guo T, Xie J, Wang W, Zhang L. P57.03 Pathogenic Germline Mutations of Homologous Recombination Deficiency (HRD) Genes in Chinese Lung Cancer Patients. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wang Y, Wo Y, Xue X, Xue Z. P14.10 Efficacy of Anti-PD-1/PD-L1 Monoclonal Antibody Treatment of Advanced NSCLC on Density and Distribution of Tumor Infiltrating T Cells. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chen B, Zhang S, Tian YA, Liu HF, Liu DH, Xue X, Li RJ, Hu XX, Guan JY, Tang WX, Xu HE. [Study on syndromic deafness caused by novel pattern of compound heterozygous variants in the CDH23 gene]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:822-829. [PMID: 32911884 DOI: 10.3760/cma.j.cn115330-20191015-00629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the pathogenic variants of a family with syndromic deafness by high-throughput sequencing. Methods: The family was from Puyang City, Henan Province, and had four members, including two with syndromic deafness. The proband and his sister had congenital deafness, and their parents had normal phenotypes. The clinical phenotype of the family was characterized using clinical examinations and pedigree analysis. The clinical examinations included imaging examination, audiometry (pure tone audiometry, acoustic immittance, brainstem auditory evoked potential, and otoacoustic emission), vestibular function test, and ophthalmic examination (visual acuity test, visual field test, fundus examination, visual evoked potential, and electroretinogram). Target exome sequencing of 129 known deafness genes and bioinformatics analysis were used to screen suspected pathogenic variants. Sanger sequencing and minigene assay were used to verify and functionally investigate the mutation detected, respectively. According to the standards and guidelines for interpreting genetic variants proposed by the American College of Medical Genetics and Genomics, the variants c.6049G>A and c.8699A>G were classified as pathogenic/likely pathogenic, and the variant c.9856C>G was classified as variants of uncertain significance. Results: The probands and his sister had severe sensorineural hearing loss with decreased binocular vision, night blindness, decreased peripheral visual field sensitivity and partial visual field defect, and normal vestibular function. Both of them had three CDH23 mutations, including CDH23 (NM_022124.5) c.6049G>A (p.Gly2017Ser),c.9856C>G (p.His3286Asp), and c.8699A>G (p. Asp2900Gly), The first two were inherited from the father, and the last one was from the mother. The missense variants c.9856C>G and c.8699A>G were not included in the gnomad database. The missense mutation c.6049G>A was located in the last position of exon 46 and was predicted to affect splicing by bioinformatics software. The minigene experiment showed that the mutation cause exon skipping of exon 46, resulting in an abnormal protein. Conclusions: Compound heterozygous variations of the CDH23 are the leading cause of USH1D in the family. This study confirms that the compound heterozygosity of splicing and missense variants of the CDH23 gene could lead to USH1D.
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Affiliation(s)
- B Chen
- Department of Otology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S Zhang
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - Y A Tian
- Beijing Genomics Institute College, Zhengzhou University, Zhengzhou 450052, China; Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou 450052, China
| | - H F Liu
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - D H Liu
- Application Center for Precision Medicine Research, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Xue
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - R J Li
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - X X Hu
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - J Y Guan
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - W X Tang
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China; Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou 450052, China; Application Center for Precision Medicine Research, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H E Xu
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China; Application Center for Precision Medicine Research, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Ning N, Wang S, Wang R, Tian Q, Xue X, Ye X, Xuan J. PCV20 A Real-World Study of Patient Characteristics and Treatment Patterns for Atrial Fibrillation in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Liu K, Xue X, Yu J, Abdelrehem A, Zhang L, Dai J, Wang X. Effect of condylar osteochondroma resection through an intraoral approach on the masticatory functions: a preliminary evaluation based on occlusion and temporomandibular joint functions. Br J Oral Maxillofac Surg 2020; 59:286-291. [PMID: 33589310 DOI: 10.1016/j.bjoms.2020.08.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 08/10/2020] [Indexed: 11/25/2022]
Abstract
With this research, we aimed to evaluate the effect of condylar osteochondroma (OC) resection through an intraoral approach on the masticatory functions. Resection of condylar OC was carried out via an intraoral approach with the help of three-dimensional (3D) design, endoscope, and navigation system. The T-Scan III computerised occlusal analysis system was used to evaluate the occlusal force distribution, recorded at pre-treatment (T1) and post-treatment (T2) intervals. Records of the clinical examination of the temporomandibular joint (TMJ), including maximal interincisal opening, mandibular lateral and forward movements, were also collected. Ten patients with condylar OC were enrolled in this study. The difference of force distribution between bilateral occlusion was reduced in T2 compared with T1 (11.92% ± 4.41% vs 48.52 % ± 28.37%, p<0.05), indicating better occlusal force distribution obtained after surgery. There was no significant difference in functions of the TMJ, such as maximal interincisal opening, and mandibular lateral and forward movements between T2 and T1 (p>0.05). Accordingly, condylar OC resection through an intraoral approach would obtain a satisfactory occlusal balance with no impairment of the temporomandibular joint functions.
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Affiliation(s)
- K Liu
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - X Xue
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - J Yu
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - A Abdelrehem
- Department of Craniomaxillofacial and Plastic Surgery, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - L Zhang
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China
| | - J Dai
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China.
| | - X Wang
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai, China.
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Wu T, Kang SC, Feng W, Fu H, Zhu XH, Wang XJ, Dai PJ, Wang TH, Bai H, Xi R, Zhang Q, Xue X, Xiang DW. [A case report of aplastic anemia accompanied with COVID-19]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:340. [PMID: 32145715 PMCID: PMC7364915 DOI: 10.3760/cma.j.issn.0253-2727.2020.0003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- T Wu
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China; Huoshenshan Hospital, Wuhan 430050, China
| | - S C Kang
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China; Huoshenshan Hospital, Wuhan 430050, China
| | - W Feng
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China; Huoshenshan Hospital, Wuhan 430050, China
| | - H Fu
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China; Huoshenshan Hospital, Wuhan 430050, China
| | - X H Zhu
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China; Huoshenshan Hospital, Wuhan 430050, China
| | - X J Wang
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China; Huoshenshan Hospital, Wuhan 430050, China
| | - P J Dai
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China; Huoshenshan Hospital, Wuhan 430050, China
| | - T H Wang
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China; Huoshenshan Hospital, Wuhan 430050, China
| | - H Bai
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China
| | - R Xi
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China; Huoshenshan Hospital, Wuhan 430050, China
| | - Q Zhang
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China
| | - X Xue
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China; Huoshenshan Hospital, Wuhan 430050, China
| | - D W Xiang
- The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu 730050, China; Huoshenshan Hospital, Wuhan 430050, China
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Zheng Y, Xue X, Resto-Irizarry AM, Li Z, Shao Y, Zheng Y, Zhao G, Fu J. Dorsal-ventral patterned neural cyst from human pluripotent stem cells in a neurogenic niche. Sci Adv 2019; 5:eaax5933. [PMID: 31844664 PMCID: PMC6905871 DOI: 10.1126/sciadv.aax5933] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 10/09/2019] [Indexed: 05/22/2023]
Abstract
Despite its importance in central nervous system development, development of the human neural tube (NT) remains poorly understood, given the challenges of studying human embryos, and the developmental divergence between humans and animal models. We report a human NT development model, in which NT-like tissues, neuroepithelial (NE) cysts, are generated in a bioengineered neurogenic environment through self-organization of human pluripotent stem cells (hPSCs). NE cysts correspond to the neural plate in the dorsal ectoderm and have a default dorsal identity. Dorsal-ventral (DV) patterning of NE cysts is achieved using retinoic acid and/or sonic hedgehog and features sequential emergence of the ventral floor plate, P3, and pMN domains in discrete, adjacent regions and a dorsal territory progressively restricted to the opposite dorsal pole. This hPSC-based, DV patterned NE cyst system will be useful for understanding the self-organizing principles that guide NT patterning and for investigations of neural development and neural disease.
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Affiliation(s)
- Y. Zheng
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Center for Biomedical Engineering, Department of Electronic Science and Technology, University of Science and Technology of China, Hefei 230027, Anhui, China
| | - X. Xue
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - A. M. Resto-Irizarry
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Z. Li
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Y. Shao
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Y. Zheng
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - G. Zhao
- Center for Biomedical Engineering, Department of Electronic Science and Technology, University of Science and Technology of China, Hefei 230027, Anhui, China
- Anhui Provincial Engineering Technology Research Center for Biopreservation and Artificial Organs, Hefei 230022, Anhui, China
- Corresponding author. (J.F.); (G.Z.)
| | - J. Fu
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Corresponding author. (J.F.); (G.Z.)
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Zhang M, Liu C, Xue X, Zhou H, Wang W, Wang L. Meta of classical chemotherapy compared with high-dose chemotherapy combined with autologous stem cell transplantation in newly diagnosed medulloblastoma patients after radiotherapy. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz243.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Han X, Xue X, Zhou H, Hou L. IDH1R132H mutation induces a less aggressive phenotype of glioma cells and affects the radiosensitivity by interacting with Wnt/β-catenin signaling. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz269.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhu Y, Zhao K, Shi J, Ren X, Zhao X, Shang Y, Xue X, Guo H, Duan X, He H, Guo Z, Li S. Strain Engineering of a Defect-Free, Single-Layer MoS 2 Substrate for Highly Efficient Single-Atom Catalysis of CO Oxidation. ACS Appl Mater Interfaces 2019; 11:32887-32894. [PMID: 31429270 DOI: 10.1021/acsami.9b06435] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Single-atom catalysts (SACs) are of great scientific and technical importance due to their low cost, high site density, and high specificity to enhance chemical reactions. Nevertheless, a major issue that severely limits the practical exploration of SACs is their instability, i.e., the preference of sintering and clustering over a defect-free substrate during operation. Here, we employ first-principles calculations to investigate how substrate engineering can stabilize SACs by strain-tuning the electronic interactions between the metal and the substrate using two Pd adatoms on a defect-free, single-layer MoS2 as a typical example. It is identified that the Pd2 dimer is prone to dissociate and form highly efficient SACs for CO oxidation due to the enhanced charge transfer and orbital hybridization with the MoS2 substrate under a suitable tensile strain. The straining induces a semiconductive-to-metallic phase transition of the substrate. Moreover, low-cost elements, such as Ag, Ni, Cu, and Cr, can also be stabilized into high-performance SACs for CO oxidation with tunable reaction barriers by straining. The present findings offer a new avenue to inhibit the transition metal atoms from clustering into nanoclusters/particles and provide a clear guidance for the development of highly cost-efficient and stable SACs on defect-free substrates.
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Affiliation(s)
| | | | - Jinlei Shi
- Beijing Computational Science Research Center , Beijing 100193 , China
| | | | - Xingju Zhao
- Beijing Computational Science Research Center , Beijing 100193 , China
| | | | | | | | - Xiangmei Duan
- Department of Physics, Faculty of Science , Ningbo University , Ningbo 315211 , China
| | | | - Zhengxiao Guo
- Departments of Chemistry and Mechanical Engineering, The University of Hong Kong, Hong Kong SAR; and Zhejiang Institute of Research and Innovation , The University of Hong Kong , Dayuan Road , Hangzhou 311305 , China
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Massera D, Xu S, Walker MD, Valderrábano RJ, Mukamal KJ, Ix JH, Siscovick DS, Tracy RP, Robbins JA, Biggs ML, Xue X, Kizer JR. Biochemical markers of bone turnover and risk of incident hip fracture in older women: the Cardiovascular Health Study. Osteoporos Int 2019; 30:1755-1765. [PMID: 31227885 PMCID: PMC6717520 DOI: 10.1007/s00198-019-05043-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 06/03/2019] [Indexed: 10/26/2022]
Abstract
UNLABELLED The relationships of osteocalcin (OC) and C-telopeptide of type I collagen (CTX) with long-term incidence of hip fracture were examined in 1680 post-menopausal women from a population-based study. CTX, but not OC, levels were associated with incident hip fracture in these participants, a relationship characterized by an inverted U-shape. INTRODUCTION We sought to investigate the relationships of OC, a marker of bone formation, and CTX, a marker of bone resorption, with long-term incidence of hip fracture in older women. METHODS We included 1680 women from the population-based Cardiovascular Health Study (mean [SD] age 74.5 [5.0] years). The longitudinal association of both markers with incidence of hip fracture was examined using multivariable Cox models. RESULTS During a median follow-up of 12.3 years, 288 incident hip fractures occurred. Linear spline analysis did not demonstrate an association between OC levels and incident hip fracture. By contrast, increasing levels of CTX up to the middle-upper range were associated with a significantly greater risk of hip fracture (HR = 1.52 per SD increment, 95% CI = 1.10-2.09), while further increases were associated with a marginally non-significant lower risk (HR = 0.80 per SD increment, 95% CI = 0.63-1.01), after full adjustment for potential confounders. In analyses of quartiles, CTX exhibited a similar inverted U-shaped relationship with incident fracture after adjustment, with a significant association observed only for the comparison of quartile 3 to quartile 1 (HR = 1.63, 95% CI = 1.10-2.43). In a subset with available measures, both OC and CTX were inversely associated with bone mineral density of the hip. CONCLUSION CTX, but not OC, levels were associated with incident hip fracture in post-menopausal women, a relationship characterized by an inverted U-shape. These findings highlight the complex relationship of bone turnover markers with hip fracture risk.
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Affiliation(s)
- D Massera
- New York University School of Medicine, New York, NY, USA
| | - S Xu
- Albert Einstein College of Medicine, Bronx, NY, USA
| | - M D Walker
- College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | | | - K J Mukamal
- Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - J H Ix
- University of California San Diego, San Diego, CA, USA
| | | | - R P Tracy
- University of Vermont, Burlington, VT, USA
| | - J A Robbins
- University of California Davis, Sacramento, CA, USA
| | - M L Biggs
- University of Washington, Seattle, WA, USA
| | - X Xue
- Albert Einstein College of Medicine, Bronx, NY, USA
| | - J R Kizer
- Cardiology Section, San Francisco Veterans Affairs Health Care System and University of California San Francisco, 4150 Clement St, San Francisco, CA, 94121, USA.
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Oktay MH, D'Alfonso T, Ginter P, Lanjewar S, Entenberg D, Pastoriza JM, Wang Y, Lin Y, Karagiannnis GS, Lin J, Ye X, Anampa J, Xue X, Rohan TE, Sparano JA, Condeelis JS. Abstract P2-08-18: Tumor microenvironment of metastasis (TMEM) score in residual breast carcinoma post-neoadjuvant chemotherapy as an independent prognosticator of distant recurrence. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p2-08-18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Tumor microenvironment of metastasis (TMEM) is a microanatomical structure composed by 3 cells in direct contact, including a tumor cell expressing the actin-regulatory protein Mammalian-enabled (Mena), a perivascular Tie2hi/Vegfhi-expressing macrophage, and an endothelial cell. TMEM are intravasation sites that function as doorways for hematogenous tumor cell dissemination and metastases (Harney et al. Cancer Discovery 2015). TMEM may be identified and enumerated by triple immunohistochemistry in mouse and human mammary carcinomas. High TMEM score is associated with increased risk of distant metastasis in early stage breast cancer, and provides complementary prognostic information to IHC4 (Rohan et al. JNCI 2014) and Oncotype DX Recurrence Score in ER+, HER2-negative breast cancer (Sparano et al. NPJ Breast Cancer, 2017). Neoadjuvant chemotherapy (NAC) increases TMEM score in breast carcinoma in animal models and humans, indicating a previously unrecognized mechanism of resistance to cytotoxic therapy (Karagiannis et al. Science Trans Med 2017). Intravasation at TMEM sites may be inhibited using agents that block release of VEGF from TMEM-associated TIE2-hi, VEGF-hi macrophages (Harney et al. Mol Cancer Ther, 2017). Here we investigated whether TMEM score in post-NAC treated breast carcinoma is prognostic of distant recurrence in localized breast cancer after NAC, and thus provides a foundation for testing agents that block TMEM function in combination with NAC.
Methods: We determined TMEM score in 80 evaluable patients' post-NAC specimens with residual invasive ductal carcinomas of at least 0.5 cm. Approximately 60% of patients had ER+/HER2-negative, 28% had triple negative and 12% had HER2+ disease. Most of the patients received doxorubicin/cyclophosphamide + taxane and an anti-HER2 therapy if applicable. Tissue sections from residual tumors were stained for TMEM using triple immunohistochemistry for Mena-expressing cancer cells, CD31-expressing endothelial cells and CD68-expressing macrophages. The stained slides were scanned, and the images were analyzed by three pathologists, blinded to outcome, who independently determined the tissue areas appropriate for TMEM scoring. TMEM was scored within these areas using an automated algorithm.
Results: TMEM score was significantly higher in patients with distant recurrence (average TMEM=106), compared to patients without distant recurrence (average TMEM=71) (p<0.01, two-sided t-test). Moreover, in a Cox proportional hazards model that included TMEM score (upper tertile vs. lower 2 tertiles), age (>50 yrs. vs. <50), race (black vs non-black), tumor stage (T 1-3), estrogen receptor (ER) status (+ vs -), high TMEM score was associated with a increased risk of distant recurrence (HR=2.2, 95% CI=1.0 to 4.9, p=0.05)
Conclusion: TMEM score may provide independent prognostic information for distant recurrence in patients with residual invasive carcinoma after NAC. These results support the use of agents that block TMEM function in combination with NAC, as planned in the I-SPY2 trial.
Citation Format: Oktay MH, D'Alfonso T, Ginter P, Lanjewar S, Entenberg D, Pastoriza JM, Wang Y, Lin Y, Karagiannnis GS, Lin J, Ye X, Anampa J, Xue X, Rohan TE, Sparano JA, Condeelis JS. Tumor microenvironment of metastasis (TMEM) score in residual breast carcinoma post-neoadjuvant chemotherapy as an independent prognosticator of distant recurrence [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P2-08-18.
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Affiliation(s)
- MH Oktay
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - T D'Alfonso
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - P Ginter
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - S Lanjewar
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - D Entenberg
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - JM Pastoriza
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - Y Wang
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - Y Lin
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - GS Karagiannnis
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - J Lin
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - X Ye
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - J Anampa
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - X Xue
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - TE Rohan
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - JA Sparano
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
| | - JS Condeelis
- Albert Einstein College of Medicine/Montefiore Medical Center, Bornx, NY; Memorial Sloan-Kettering Cancer Center, New York, NY; Weill Cornell Medicine, New Yoik, NY
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Anampa JD, Xue X, Oh SY, Kornblum N, Sadan S, Oktay MH, Condeelis J, Sparano JA. Abstract P6-18-22: Phase Ib study of rebastinib plus antitubulin therapy with paclitaxel (P) or eribulin (E) in patients with HER2-negative metastatic breast cancer (MBC). Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p6-18-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
BACKGROUND: TMEM (Tumor Microenvironment of Metastasis) are the portal for tumor cell intravasation into the circulation and subsequent metastasis (Harney et al Cancer Discov 2015). The potent Tie2 kinase inhibitor rebastinib inhibits intravasation at TMEM sites, reduces circulating tumor cell (CTC) burden, increases angiopoietin (Ang) 1/2 levels, prevents distant metastases, and improves survival in breast cancer animal models when added to either P or E (Harney et al MCT 2017), and circumvent chemotherapy-induced pro-metastatic changes in the tumor microenvironment mediated by TMEM (Karagiannis et al STM 2017). We sought to determine the safety of rebastinib combined with antitubulin therapy (P or E) in patients with HER2- MBC. We also hypothesized that addition of rebastinib would reduce CTC burden and increase Ang levels by blocking Ang-mediated stimulation of VEGF release from TMEM-associated macrophages.
METHODS: We aimed to determine the safety and recommended phase 2 dose (RP2D) of rebastinib (2 dose levels: 50 mg or 100 mg PO BID) in combination with P (80 mg/m2 x 12 weeks) or E (1.4 mg/m2 on day 1 & 8 q 21 days) using a standard 3+3 design (1 cycle = 21 days). Secondary objectives included evaluating the effect of the P/E + rebastinib combination on CTCs (TelomeScan) and Ang levels. Dose limiting toxicity (DLT) was defined as grade 3-4 febrile neutropenia, thrombocytopenia, and non-hematologic toxicity during the first 6 weeks of therapy. Eligibility included HER2- MBC, ECOG PS 0-1, CDK4/6 inhibitor progression if ER+. Patients with ≤ 2 prior non-taxane chemotherapy regimens received P+ rebastinib, whereas those with ≥ 2 chemo regimens (including a taxane) received E+ rebastinib.
RESULTS: Of 11 treated patients, 6 received rebastinib + P and 5 received rebastinib + E (2 non-evaluable due to rapid disease progression and non-compliance). Among 11 patients who received 60 treatment cycles, only 1 patient (treated with eribulin) had grade 3 events (anemia and neuropathy after week 6) potentially related to treatment. When combined with P, the RP2D of rebastinib was 100 mg PO BID, with DLT occurring in 0/6 patients. When combined with E, 0/3 evaluable patients had a DLT at 50 mg BID of rebastinib (accrual ongoing for 100mg BID). Best response included partial response/stable disease in 4(2PR/2SD) of 6 treated with P+ rebastinib, and 1(1PR) of 5 treated with E+ rebastinib. CTCs decreased during therapy (median decrease 99.7 %) and 4/8 patients converted from CTC+ to CTC-. Ang1 levels increased during therapy in 8 patients (0.2-7.0 fold), while Ang2 levels were also increased in 8 patients (0.2-1.4 fold).
CONCLUSIONS: When combined with P x 12 weeks, the RP2D of rebastinib is 100 mg PO BID. When combined with E, the RP2D of rebastinib is at least 50mg PO BID; however, the 100 mg PO BID dose level is still accruing patients. The P/E + rebastinib combinations are associated with antitumor activity and exhibit pharmacodynamic evidence indicating blockade of Tie2 (increased Ang) and TMEM function (reduced CTCs) We plan to further evaluate the P+ rebastinib combination as neoadjuvant therapy in the I-SPY program, and continue further evaluation of P/E + rebastinib combinations in MBC.
Citation Format: Anampa JD, Xue X, Oh S-y, Kornblum N, Sadan S, Oktay MH, Condeelis J, Sparano JA. Phase Ib study of rebastinib plus antitubulin therapy with paclitaxel (P) or eribulin (E) in patients with HER2-negative metastatic breast cancer (MBC) [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P6-18-22.
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Affiliation(s)
- JD Anampa
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; White Plains Hospital, White plains, NY
| | - X Xue
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; White Plains Hospital, White plains, NY
| | - S-y Oh
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; White Plains Hospital, White plains, NY
| | - N Kornblum
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; White Plains Hospital, White plains, NY
| | - S Sadan
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; White Plains Hospital, White plains, NY
| | - MH Oktay
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; White Plains Hospital, White plains, NY
| | - J Condeelis
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; White Plains Hospital, White plains, NY
| | - JA Sparano
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; White Plains Hospital, White plains, NY
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Abstract
We study the effects of thermally induced capillary waves in the fragmentation of a liquid ligament into multiple nanodroplets. Our numerical implementation is based on a fluctuating lattice Boltzmann (LB) model for nonideal multicomponent fluids, including nonequilibrium stochastic fluxes mimicking the effects of molecular forces at the nanoscales. We quantitatively analyze the statistical distribution of the breakup times and the droplet volumes after the fragmentation process at changing the two relevant length scales of the problem, i.e., the thermal length scale and the ligament size. The robustness of the observed findings is also corroborated by quantitative comparisons with the predictions of sharp interface hydrodynamics. Beyond the practical importance of our findings for nanofluidic engineering devices, our study also explores a novel application of LB in the realm of nanofluidic phenomena.
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Affiliation(s)
- X Xue
- Department of Physics and J. M. Burgerscentrum, Eindhoven University of Technology, 5600 MB Eindhoven, the Netherlands.,Department of Physics & INFN, University of Rome "Tor Vergata," Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - M Sbragaglia
- Department of Physics & INFN, University of Rome "Tor Vergata," Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - L Biferale
- Department of Physics & INFN, University of Rome "Tor Vergata," Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - F Toschi
- Departments of Physics and of Mathematics and Computer Science and J. M. Burgerscentrum, Eindhoven University of Technology, 5600 MB Eindhoven, the Netherlands.,Istituto per le Applicazioni del Calcolo CNR, Via dei Taurini 19, 00185 Rome, Italy
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Yu JT, Chen HW, Xue X. P4806Difference of efficacy and safety of left atrial appendage closure using watchman between patients aged less than 75 to more than 75 years. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J T Yu
- Helmut-G.-Walther Klinikum, Cardiology, Lichtenfels, Germany
| | - H W Chen
- The First Affiliated Hospital of University of Science and Technology of China, Cardiology, Hefei, China People's Republic of
| | - X Xue
- the Second Hospital of Jilin University, Cardiology Department, Changchun, China People's Republic of
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Yu JT, Xue X, Jiang LS, Duenninger E, Muenzel M, Guan SF, Fazakas A, Cheng FZ, Illnitzky J, Keil T. P4807Impact of chronic kidney disease on Watchman implantation: experience with 300 consecutive left atrial appendage closures at a single center. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J T Yu
- Helmut-G.-Walther-Klinikum, Cardiology Department, Lichtenfels, Germany
| | - X Xue
- the Second Hospital of Jilin University, Cardiology Department, Changchun, China People's Republic of
| | - L S Jiang
- Renji Hospital of Shanghai Jiao Tong University School of Medicine, Cardiology Department, Shanghai, China People's Republic of
| | - E Duenninger
- Helmut-G.-Walther-Klinikum, Cardiology Department, Lichtenfels, Germany
| | - M Muenzel
- Helmut-G.-Walther-Klinikum, Cardiology Department, Lichtenfels, Germany
| | - S F Guan
- Shanghai Chest Hospital, Cardiology Department, Shanghai, China People's Republic of
| | - A Fazakas
- Helmut-G.-Walther-Klinikum, Cardiology Department, Lichtenfels, Germany
| | - F Z Cheng
- Luohu People's Hospital, Cardiology Department, Shenzhen, China People's Republic of
| | - J Illnitzky
- Helmut-G.-Walther-Klinikum, Cardiology Department, Lichtenfels, Germany
| | - T Keil
- Helmut-G.-Walther-Klinikum, Cardiology Department, Lichtenfels, Germany
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Anampa JD, Xue X, Oktay M, Condeelis J, Sparano JA. Abstract OT2-06-04: Phase Ib study of rebastinib plus antitubulin therapy with paclitaxel or eribulin in patients with metastatic breast cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-ot2-06-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Metastasis is the primary cause of death in breast cancer, yet no specific therapies are available that inhibit the metastatic process. TMEM (Tumor Microenvironment of Metastasis) are microanatomic structures formed by a Mena-expressing tumor cell, Tie2-expressing macrophage, and endothelial cell in direct content, which serve as the primary portal for tumor cell intravasation into the circulation and subsequent metastasis. High TMEM score in the primary tumor is associated with higher risk of recurrence in ER+, HER2- early breast cancer. Paclitaxel induces the formation of TMEM in the primary tumors of patients treated with neoadjuvant chemotherapy, and in the primary tumor and distant metastases in the PyMT/PDX models. Tumor cell intravasation is mediated by release of VEGF that promotes focal vascular leakiness specifically at TMEM sites, and is derived from TMEM-associated Tie2HI/VEGFHI macrophages that release VEGF upon binding of the Tie2 receptor to angiopoietin2 (ANG2), which is elaborated by TMEM-associated endothelial cells. Moreover, ANG2-stimulated release of IL-10 by tumor-associated macrophages suppresses T cell proliferation, increases the ratio of CD4+T cells to CD8+ T cells, and promotes the expansion of CD4+CD25highFOXP3+ cells. The Tie2 inhibitor rebastinib inhibits intravasation at TMEM sites, reduces circulating tumor cell (CTC) burden, prevents distant metastases, and improves survival in breast cancer animal models when added to either paclitaxel or eribulin. We therefore hypothesize that the addition of a potent Tie2 inhibitor (rebastinib) to antitubulin therapy in patients with HER2 negative metastatic breast cancer (MBC) will prevent hematogenous dissemination and distant metastasis by inhibition of TMEM function, reduction in CTC burden, and inhibition of immune-system suppression resulting in improvement in breast clinical outcomes
Methods: Primary objective of this phase Ib study (NCT02824575) is to evaluate safety and tolerability of rebastinib in two dose levels (DL) (50mg or 100mg po BID) combined with paclitaxel IV 80mg/m2 (day 1, 8 and 15) or eribulin IV 1.4mg/m2 (day1 and 8) for four 21-day cycles.
Key eligibility includes histologically confirmed HER2 negative MBC. ≤ 2 non-taxane chemotherapy regimens are allowed for rebastinib plus paclitaxel arm, while ≥ 2 chemotherapy regimens (including a taxane) are required for eribulin plus rebastinib arm. ≥ 2 endocrine regimens, including an approved CDK4/6 inhibitor, is required for ER+ disease. Patients require ECOG PS 0 or 1 and normal organ and marrow function. Exclusion criteria include significant ocular disease, significant history of cardiac disease or concomitant use drugs that prolong QTc interval.
Pharmacodynamic biomarkers to be measured during cycle 1-3 include CTCs, ANG 1/2 levels and Tie-2 expressing monocytes. Tissue biopsy after two treatment cycles in 6 patients who have accessible tumors will be performed to evaluate TMEM score and function. With two DL of rebastinib, and 3-6 patients at each DL, it is anticipated that 6-12 patients will be required.
This trial has enrolled three patients assigned paclitaxel arm (DL1) and one patient in eribulin arm(DL1).
Citation Format: Anampa JD, Xue X, Oktay M, Condeelis J, Sparano JA. Phase Ib study of rebastinib plus antitubulin therapy with paclitaxel or eribulin in patients with metastatic breast cancer [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr OT2-06-04.
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Affiliation(s)
- JD Anampa
- Montefiore Einstein Cancer Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - X Xue
- Montefiore Einstein Cancer Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - M Oktay
- Montefiore Einstein Cancer Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - J Condeelis
- Montefiore Einstein Cancer Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - JA Sparano
- Montefiore Einstein Cancer Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
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Pastoriza JM, Karagiannis GS, Xue X, Lin J, Condeelis JS, Sparanno JA, Rohan TE, Oktay MH. Abstract P6-10-02: Black race is associated with worse distant relapse-free survival in breast cancer patients treated with neoadjuvant compared to adjuvant systemic chemotherapy. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p6-10-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Compared to white women, black women with operable breast cancer treated with primary surgical therapy and adjuvant or neoadjuvant systemic chemotherapy have higher recurrence rates and breast cancer mortality. Large randomized prospective studies did not find significant differences in distant-recurrence free survival (DRFS) and overall survival (OS) between breast cancer patients treated in the adjuvant and neoadjuvant setting for predominantly white populations. However, data indicating that neoadjuvant treatment is equivalent to adjuvant treatment for black breast cancer patients are missing. Here, we first examined racial differences in DRFS among breast cancer patients treated in the neoadjuvant setting at Einstein-Montefiore Center for Cancer Care (EMCCC) in the Bronx, and then investigated if DRFS in black patients treated in the neoadjuvant setting is comparable to DRFS in the adjuvant setting.
Methods: We evaluated DRFS in 241 racially diverse patients with localized or regionally advanced breast cancer treated with neoadjuvant chemotherapy between January 2000 and December 2016. In addition, we evaluated DRFS in 474 white and 701 black patients with localized or regionally advanced breast cancer treated with systemic adjuvant (432 whites, 596 blacks) or neoadjuvant (42 whites, 105 blacks) chemotherapy. Using multivariate Cox proportional hazard models, we generated hazard ratios (HR) and 95% confidence intervals (95%CI) for risk of distant recurrence, with adjustment for age (<50 vs >/50 years), stage (I/II vs III), estrogen receptor (ER) status (+ vs -), HER2/neu overexpression (+ vs. -/equivocal/unknown), triple negative (TN) status (yes vs no), and type of systemic chemotherapy (adjuvant vs. neoadjuvant).
Results: Black patients treated with neoadjuvant systemic chemotherapy had significantly worse DRFS than white patients (HR=2.29; 95%CI=1.02-5.15, p=0.04). DRFS in non-black Hispanics and patients from racial backgrounds other than Hispanic or black compared to whites was not statistically different. Neoadjuvant chemotherapy was associated with worse DRFS compared to adjuvant chemotherapy in black (HR=3.72; 95%CI=4.03-5.81; p=<0.0001), but not in white women.
Conclusion: Black patients with localized breast cancer treated with systemic neoadjuvant chemotherapy not only have inferior DRFS compared to white patients, but also worse DRFS when compared to black patients treated with adjuvant chemotherapy, after adjustment for clinical and pathological covariates. This observation needs to be confirmed in further prospective studies and biologic factors contributing to this finding need to be evaluated.
Citation Format: Pastoriza JM, Karagiannis GS, Xue X, Lin J, Condeelis JS, Sparanno JA, Rohan TE, Oktay MH. Black race is associated with worse distant relapse-free survival in breast cancer patients treated with neoadjuvant compared to adjuvant systemic chemotherapy [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P6-10-02.
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Affiliation(s)
- JM Pastoriza
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; Integrated Imaging Program, Albert Einstein College of Medicine, Bronx, NY
| | - GS Karagiannis
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; Integrated Imaging Program, Albert Einstein College of Medicine, Bronx, NY
| | - X Xue
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; Integrated Imaging Program, Albert Einstein College of Medicine, Bronx, NY
| | - J Lin
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; Integrated Imaging Program, Albert Einstein College of Medicine, Bronx, NY
| | - JS Condeelis
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; Integrated Imaging Program, Albert Einstein College of Medicine, Bronx, NY
| | - JA Sparanno
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; Integrated Imaging Program, Albert Einstein College of Medicine, Bronx, NY
| | - TE Rohan
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; Integrated Imaging Program, Albert Einstein College of Medicine, Bronx, NY
| | - MH Oktay
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY; Integrated Imaging Program, Albert Einstein College of Medicine, Bronx, NY
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Wang F, Qian X, Peng Q, Krutmann J, Jin L, Xue X, Wang S. 705 Skin signs, genes and environmental factors associated with perceived facial age - A phenotype effectively inferred by machine learning based methods. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zhao XJ, Shan WW, He H, Xue X, Guo ZX, Li SF. From single atoms to self-assembled quantum single-atomic nanowires: noble metal atoms on black phosphorene monolayers. Phys Chem Chem Phys 2017; 19:7864-7870. [PMID: 28262871 DOI: 10.1039/c6cp08230k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Transition metal (TM) nanostructures, such as one dimensional (1D) nanowires with/without substrates, usually possess drastically different properties from their bulk counterparts, due to their distinct stacking and electronic confinement. Correspondingly, it is of great importance to establish the dominant driving force in forming 1D single-metal-atom-wires (SMAWs). Here, with first-principles calculations, taking the black phosphorene (BP) monolayer as a prototype 2D substrate, we investigate the energetic and kinetic properties of all the 5d-TM atoms on the 2D substrate to reveal the mechanism of formation of SMAWs. In contrast to other 5d- and 4d-TMs, noble metal elements Pd and Pt are found to prefer to grow along the trough in an atom-by-atom manner, self-assembling into SMAWs with a significant magic growth behavior. This is due to distinct binding energies and diffusion barriers along the trough, i.e., zig-zag direction, as compared to other directions of the BP. The present findings are valuable in the fabrication and modulation of 1D nanostructures which can be anticipated to possess desirable functionalities for potential applications such as in nanocatalysis, nanosensors, and related areas.
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Affiliation(s)
- X J Zhao
- International Laboratory for Quantum Functional Materials of Henan, School of Physics and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China.
| | - Wen-Wen Shan
- North China University of Water Resources and Electric Power, Zhengzhou, 450011, China
| | - Hao He
- International Laboratory for Quantum Functional Materials of Henan, School of Physics and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China.
| | - Xinlian Xue
- International Laboratory for Quantum Functional Materials of Henan, School of Physics and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China.
| | - Z X Guo
- International Laboratory for Quantum Functional Materials of Henan, School of Physics and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China. and Department of Chemistry, University College London, London WC1H 0AJ, UK
| | - S F Li
- International Laboratory for Quantum Functional Materials of Henan, School of Physics and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China.
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Donovan MJ, Jones JG, Entenberg DR, Condeelis JS, D'alfonso TM, Gustavson M, Molinaro A, Oktay MH, Xue X, Sparano JA, Peterson MA, Podznyakova O, Rohan TE, Shuber AP, Gertler FB, Ly A, Divelbiss ME, Hamilton DA. Abstract P2-05-06: Analytical and clinical validation of a fully automated tissue-based quantitative assay (MetaSite Breast™) to detect the likelihood of distant metastasis in hormone receptor (HR)-positive, HER2-negative early stage breast cancer (ESBC). Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p2-05-06] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: MetaSite Breast™ is a validated assay to predict risk of distant breast cancer metastasis in patients with HR+/HER2- ESBC. The assay measures the number of MetaSites defined as tumor microanatomic structures composed of MENA protein expressing tumor cells in contact with CD31+ endothelial cells and CD68+ macrophages. Previous studies have demonstrated that an increased number of these microanatomic structures is associated with distant metastasis (DM) in HR+/HER2- ESBC independent of clinicopathologic features. Analytical validation of MetaSite Breast™ demonstrated precision of 97-99% (repeat image analysis of the same slide) and performance of 91-96% (staining and image analysis of serial tumor sections). We sought to further understand the importance of the MetaSite in predicting distant breast cancer metastasis utilizing a fully automated prognostic assay in an independent large patient cohort.
Methods: We conducted a nested case-control study within a cohort of 3,760 patients diagnosed between 1980 and 2000 with invasive breast cancer from the Kaiser Permanente Northwest health care system. Cases (n=259) were women who developed a subsequent distant metastasis; controls, selected using incidence density sampling, were matched closely to cases (1:1) on age at and calendar year of primary diagnosis. Of the 481 patient tumor samples evaluated in this study, 57% were HR+/HER2-, 19% were triple negative (TN), and 15% were HER2+ disease. Multivariate models were adjusted for clinical factors including: lymph node status, tumor size, tumor grade, and HRT; as well as matching variables: age and year of diagnosis. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using logistic regression.
Results: In the HR+/HER2- group, MetaSite Score (MS) ranged from 0-357 and the mean was 44.6. MS was a significant predictor of DM (P=0.039) in patients with HR+/HER2- disease. Cut-points based on tertiles of MS in all 259 controls defined intermediate (13-41) and high (>41) risk groups that were significantly associated with risk of DM versus the low risk group (OR=2.24; 95%CI=1.23-4.13, P=0.009) and (OR=2.94; 95%CI=1.62-5.41, P=0.0005), respectively. Univariate estimates of absolute risk of DM with cutoffs based on 90% sensitivity and specificity were 9.4% for the low risk group (MS<7), 14.1% for the intermediate (MS=7-91), and 23.4% for the high (MS>91). When adjusted for clinical factors, estimates of absolute risk of DM were 6.6%, 14.1%, and 33.0% for the low, intermediate, and high risk groups, respectively. A binary cut-point for the high risk group was determined (MS>14) and was significant with a 2-fold higher risk of DM versus the low risk group and adjusted for clinical covariates (P=0.036). MS was not positively associated with DM in TN or HER2+ disease.
Conclusions: MetaSite Breast™ significantly predicted the risk of distant breast cancer metastasis in ESBC patients with HR+/HER2-disease, independent of classical clinicopathologic features.
Citation Format: Donovan MJ, Jones JG, Entenberg DR, Condeelis JS, D'alfonso TM, Gustavson M, Molinaro A, Oktay MH, Xue X, Sparano JA, Peterson MA, Podznyakova O, Rohan TE, Shuber AP, Gertler FB, Ly A, Divelbiss ME, Hamilton DA. Analytical and clinical validation of a fully automated tissue-based quantitative assay (MetaSite Breast™) to detect the likelihood of distant metastasis in hormone receptor (HR)-positive, HER2-negative early stage breast cancer (ESBC) [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P2-05-06.
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Affiliation(s)
- MJ Donovan
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - JG Jones
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - DR Entenberg
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - JS Condeelis
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - TM D'alfonso
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - M Gustavson
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - A Molinaro
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - MH Oktay
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - X Xue
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - JA Sparano
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - MA Peterson
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - O Podznyakova
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - TE Rohan
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - AP Shuber
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - FB Gertler
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - A Ly
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - ME Divelbiss
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
| | - DA Hamilton
- Icahn School of Medicine at Mount Sinai, New York, NY; Albert Einstein College of Medicine, New York, NY; Montefiore, New York, NY; MetaStat, Inc., Boston, MA; Massachusetts General Hospital/Harvard Medical School, Boston, MA; Brigham and Womens Hospital/Harvard Medical School, Boston, MA; University of California, San Francisco, San Francisco, CA; Weill Cornell Medicine, New York, NY; Biology and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA; Alberta Health Services, Calgary, AB, Canada
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Sparano JA, Gray R, Oktay MH, Entenberg D, Rohan T, Xue X, Donovan M, Peterson M, Shuber A, Hamilton D, D'Alfonso T, Goldstein LJ, Gerlter F, Davidson N, Condeelis J, Jones J. Abstract S4-04: Tumor microenvironment of metastasis (TMEM) score is associated with early distant recurrence in hormone receptor (HR) positive, HER2-negative early stage breast cancer (ESBC). Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-s4-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Metastasis is the primary cause of death in ESBC. We have shown in mouse models that a subpopulation of tumor cells expressing invasive Mena isoforms stream, form microanatomic structures (“TMEM”) with endothelial cells and macrophages, intravasate into the circulation at TMEM sites, and metastasize (Harney et al. Cancer Discovery, 2015). Further, TMEM sites (“MetaSites”) are identifiable in human ESBC, and “MetaSite score” [MS] is positively associated with distant recurrence in HR+/HER2- ESBC independent of clinicopathologic features, including IHC4 (Rohan et al. JNCI 2014). Here we determined the association between MS and recurrence in an independent ESBC cohort (E2197; NCT00003519).
Methods: We evaluated primary tumors from 600 patients (median followup 14.8 years) with ESBC (weighted % = 50% T1, 54% N0, 46% N1) treated with surgery and 4 cycles of adjuvant chemotherapy (AC or AT) and endocrine therapy. Grade, ER, PR, and HER2, and Oncotype DX Recurrence Score (RS) were evaluated in central labs (Badve et al. JCO 2008), and MS was determined in a CLIA-certified lab using an analytically validated, fully automated digital pathology/image analysis method that identifies Mena expressing tumor cells in direct contact with CD68+ macrophages and CD31+ endothelial cells (ie, “TMEMs”, or “MetaSites”). The objectives were to determine the association between MS and distant relapse free interval (DRFI) and relapse free interval (RFI). Kaplan-Meier survival curves were used to estimate time-to-event distributions. Cox proportional hazards models were used to assess hazard ratio associated with MS while controlling for covariates, and allowing time-varying association with MS. Both Kaplan-Meier and Cox regression methods addressed stratified sampling by incorporating proper weights. All analyses were performed in R 3.2.3.
Results: MS ranged from 0-199; the weighted mean MS was lower in HR+/HER2- than TN (16.1 vs. 23.8, p=0.001) and HER2+ disease (26.2, p=0.003). MS was not associated with T or N status, and correlated poorly with RS (r=0.29). Proportional hazards models revealed a significant positive association between continuous MS and DRFI (p=0.001) and RFI (p=0.00006) in HR+/HER2- disease in years 0-5 (and by MS tertiles for DRFI [p=0.04] and RFI [p=0.01]), but not after year 5 or in TN or HER2+ disease. Proportional hazards models including clinical covariates (N0 vs. N1; T1 vs. T2; high vs. int. vs. low grade) also revealed significant positive associations for continuous MS with RFI (p=0.04), and borderline association with DRFI (p=0.08). Similar findings for MS (RFI p=0.05;DRFI p=0.10) were noted in a joint model including categorical RS (<18,18-30, >30).
Conclusions: MS, a novel metastasis biomarker reflecting interaction between streaming and metastasizing tumor cells and microenvironment, provides prognostic information complementary to classical clinicopathologic features and RS in HR+/HER2- ESBC. Further evaluation is warranted in order to identify patients at highest risk of recurrence within 5 years most likely to benefit from adjuvant chemotherapy or novel therapies. (Supported by BCRF and NCI CA21115, CA180794, CA23318, CA66636, CA180820).
Citation Format: Sparano JA, Gray R, Oktay MH, Entenberg D, Rohan T, Xue X, Donovan M, Peterson M, Shuber A, Hamilton D, D'Alfonso T, Goldstein LJ, Gerlter F, Davidson N, Condeelis J, Jones J. Tumor microenvironment of metastasis (TMEM) score is associated with early distant recurrence in hormone receptor (HR) positive, HER2-negative early stage breast cancer (ESBC) [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr S4-04.
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Affiliation(s)
- JA Sparano
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - R Gray
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - MH Oktay
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - D Entenberg
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - T Rohan
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - X Xue
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - M Donovan
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - M Peterson
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - A Shuber
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - D Hamilton
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - T D'Alfonso
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - LJ Goldstein
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - F Gerlter
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - N Davidson
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - J Condeelis
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - J Jones
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; ECOG-ACRIN Research Group, Boston, MA; Albert Einstein College of Medicine, Bronx, NY; Mt. Sinai School of Medicine, New York, NY; MetaStat, Inc, Boston, MA; Weill Cornell Medical College, New York, NY; Fox Chase Cancer Center, Philadelphia, PA; Massachusetts Institute of Technology, Boston, MA; University of Pittsburgh Cancer Institute, Pittsburgh, PA
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Acuna A, Gligich O, Khan H, Xue X, Lin J, Sparano J, Anampa J. Abstract P5-10-05: Time differences in breast cancer diagnosis among minorities in a large referal academic center. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p5-10-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Breast cancer (BC) is the most common malignancy and leading cause of cancer death in women. BC incidence is lower in Hispanic (H) (91.9/100,000) compared to non-Hispanic Whites (NHW -128.1/100.000) and Non-Hispanic Black (NHB - 124.3/100,000) population; however, mortality rate is higher in NHB (31/100,000) compared to NHW (21.9/100,000) and H (14.5/100,000). Diagnosis delay is a plausible factor that may explain differences in BC clinical outcomes among different race/ethnicity subgroups.
Objective: To compare time to diagnosis (TTD) by race/ethnicity in women with breast cancer diagnosed at Montefiore Medical Center from 2004 to 2012.
Methods: Patients with breast cancer and available race/ethnicity information diagnosed between 2004 and 2012 were categorized into 4 race/ethnicity groups: NHB, NHW, H or Asian. Dates of screening mammogram, diagnostic mammogram and biopsy were obtained. TTD was defined as the time difference between abnormal mammogram and biopsy dates.
Results: 919 patients had ethnicity information, 302 (32.8%) were H. TTD was longer in H compared to non-Hispanics (35 vs 31 days, z=2.2, p=0.02). Race and ethnicity information was available for 834 patients with a mean age of 62 years (SD:12.4). Of these, 252 (30.2%) were H and 387 (46.4%) were NHB. NHW had the shortest TTD (30 days), the highest frequency of Stage I (70%) and lowest frequency of high-nuclear grade (15.6%). NHB had a TTD of 31 days and higher frequency of triple negative disease (18.9%). TTD was significantly longer in H compared to NHW (35 vs 30 days, z=2.3, p=0.02), and there was a non-significant longer TTD when comparing H versus NHB (35 vs 31 days, z=1.9, p=0.0574). TTD between NHB and NHW was not different (31 vs 30 days, z=1.4, p=0.14).
Conclusions: The longer TTD in H vs Non-Hispanics was driven by the TTD in NHW. NHW had shorter TTD and more favorable pathological features which could lead to lower mortality rate. There was no difference in TTD between NHW and NHB but the latter had higher frequencies of triple negative disease. Correlation between TTD and mortality in our population will help to clarify the clinical effect of TTD differences among race/ethnicity subgroups.
Total (n= 834)Not Hispanic Black (n=387)Not Hispanic White (n=180)Hispanic (n=302)Asian (n=15)Age (SD)62 (12.4)62.965.261.6 (11.9)53.2Stage* I613 (65.7)239 (61.6)126 (70)202 (67.3)10 (66.7)II242 (25.9)121 (31.3)36 (20)71 (23.7)3 (20)III56 (6)19 (4.9)12 (6.7)20 (6.7)3 (15.3)IV21 (2.3)8 (2.1)6 (3.3)7 (2.3)1 (1)Histology* IDC697 (75.1)292 (75.5)121 (67.2)224 (74.7)13 (86.7)ILC81 (8.7)34 (8.8)23 (12.8)21 (7)2 (13.3)Mixed140 (15.1)57 (14.7)33 (18.3)49 (16.3)0 (0)Grade* High253 (28.4)138 (35.7)28 (15.6)73 (24.3)4 (26.7)Moderate426 (48)155 (40.1)86 (47.8)151 (50.3)9 (60)Low210 (23.6)83 (21.5)49 (27.2)62 (20.7)1 (6.7)Receptor status* ER positive762 (81.8)286 (73.9)162 (90)258 (86)12 (80)PR positive632 (67.8)229 (59.2)137 (76.1)219 (73)11 (73.3)HER-2 positive143 (15.4)70 (18.1)14 (7.8)49 (16.3)5 (33.3)Triple negative115 (12.3)73 (18.9)14 (7.8)21 (7)1 (6.7)Times Time to diagnosis33 (20-52)31 (19-52)30 (19-44.5)35 (21-58.5)42 (21-72)Screening to Diagnostic22 (14-36)22 (13-36)21 (13-32)23 (14-14)26 (17-37)Diagnostic to Biopsy7 (0-13)7 (0-13)6 (0-14)7 (1-13)5 (0-9)
Citation Format: Acuna A, Gligich O, Khan H, Xue X, Lin J, Sparano J, Anampa J. Time differences in breast cancer diagnosis among minorities in a large referal academic center [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P5-10-05.
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Affiliation(s)
- A Acuna
- Montefiore Medical Center/Albert Einstein College of Medicine
| | - O Gligich
- Montefiore Medical Center/Albert Einstein College of Medicine
| | - H Khan
- Montefiore Medical Center/Albert Einstein College of Medicine
| | - X Xue
- Montefiore Medical Center/Albert Einstein College of Medicine
| | - J Lin
- Montefiore Medical Center/Albert Einstein College of Medicine
| | - J Sparano
- Montefiore Medical Center/Albert Einstein College of Medicine
| | - J Anampa
- Montefiore Medical Center/Albert Einstein College of Medicine
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Sun Z, Zhang Y, Xue X, Niu R, Wang J. Maternal fluoride exposure during gestation and lactation decreased learning and memory ability, and glutamate receptor mRNA expressions of mouse pups. Hum Exp Toxicol 2017; 37:87-93. [PMID: 29187078 DOI: 10.1177/0960327117693067] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Previous investigations demonstrated that high fluoride (F) exposure may adversely affect the neurodevelopment and learning and memory ability. However, whether maternal F exposure during gestation and lactation can influence the learning, memory ability, and glutamate receptor expressions of offspring has not yet been elucidated. Hence, in the present study, maternal mice were exposed to F (25, 50, or 100 mg/L sodium fluoride (NaF) in drinking water) during gestation and lactation. Results showed that exposure to 100 mg/L NaF significantly enhanced the number of total arm entries and working memory errors of offspring in the radial arm maze test compared to the control group. However, no difference was observed in open-field behaviors. For the subtypes of glutamate receptors in hippocampus, expression of GluR2 mRNA was significantly reduced by 25, 50, and 100 mg/L NaF. Besides, F exposure also suppressed the expression of NR2A, NR2B, and mGluR2 mRNA levels in a dose-dependent manner, where NR2A was significantly suppressed by 50 mg/L NaF and NR2B and mGluR2 by 100 mg/L NaF. However, no significant changes were observed in GluR1 and mGluR5 mRNA expression levels. Collectively, these findings suggested that F can pass through the cord blood and breast milk and may have deleterious impact on learning and memory of the mouse pups, which was mediated by reduced mRNA expression of glutamate receptor subunits.
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Affiliation(s)
- Z Sun
- 1 College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China.,2 Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Taigu, Shanxi, China
| | - Y Zhang
- 1 College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China
| | - X Xue
- 1 College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China
| | - R Niu
- 1 College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China.,2 Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Taigu, Shanxi, China
| | - J Wang
- 1 College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China.,2 Shanxi Key Laboratory of Ecological Animal Science and Environmental Veterinary Medicine, Taigu, Shanxi, China
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Da F, Yao L, Su Z, Hou Z, Li Z, Xue X, Meng J, Luo X. Antisense locked nucleic acids targeting agrA inhibit quorum sensing and pathogenesis of community-associated methicillin-resistant Staphylococcus aureus. J Appl Microbiol 2016; 122:257-267. [PMID: 27718524 DOI: 10.1111/jam.13321] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 09/16/2016] [Accepted: 10/03/2016] [Indexed: 11/30/2022]
Abstract
AIM Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) is commonly associated with nonnosocomial skin and soft tissue infections due to its virulence, which is mainly controlled by the accessory gene regulator (agr) quorum sensing (QS) system. In this study (KFF)3 K peptide-conjugated locked nucleic acids (PLNAs) targeting agrA mRNA were developed to inhibit agr activity and arrest the pathogenicity of CA-MRSA. METHODS AND RESULTS Two PLNAs were designed, and synthesized, after predicting the secondary structure of agrA mRNA. The influence on bacterial growth was tested using a growth curve assay. RT-qPCR, haemolysis assay, lactate dehydrogenase release assay and chemotaxis assay were used to evaluate the effects of the PLNAs on inhibiting agr QS. A mouse skin infection model was employed to test the protective effect of the PLNAs in vivo. None of the PLNAs were found to be bacteriostatic or bactericidal in vitro. However, one PLNA, PLNA34, showed strong ability to suppress expression of agrA and the effector molecule RNAIII in USA300 LAC strain. Furthermore, PLNA34 inhibited the expression of virulence genes that are upregulated by agr, including hla, psmα, psmβ and pvl. The haemolytic activity of the supernatants from PLNA34-treated bacteria was also dramatically reduced, as well as the capacity to lyse and recruit neutrophils. Moreover, PLNA34 showed high levels of protection in the CA-MRSA mouse skin infection model. CONCLUSIONS The anti-agrA PLNA34 can effectively inhibit the agr QS and suppress CA-MRSA pathogenicity. SIGNIFICANCE AND IMPACT OF THE STUDY agrA is a promising target for the development of antisense oligonucleotides to block agr QS.
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Affiliation(s)
- F Da
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - L Yao
- Department of Medicinal Chemistry, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Z Su
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Z Hou
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Z Li
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - X Xue
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - J Meng
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - X Luo
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
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Kuniholm MH, Xie X, Anastos K, Xue X, Reimers L, French AL, Gange SJ, Kassaye SG, Kovacs A, Wang T, Aouizerat BE, Strickler HD. Human leucocyte antigen class I and II imputation in a multiracial population. Int J Immunogenet 2016; 43:369-375. [PMID: 27774761 DOI: 10.1111/iji.12292] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 06/14/2016] [Accepted: 09/25/2016] [Indexed: 12/11/2022]
Abstract
Human leucocyte antigen (HLA) genes play a central role in response to pathogens and in autoimmunity. Research to understand the effects of HLA genes on health has been limited because HLA genotyping protocols are labour intensive and expensive. Recently, algorithms to impute HLA genotype data using genome-wide association study (GWAS) data have been published. However, imputation accuracy for most of these algorithms was based primarily on training data sets of European ancestry individuals. We considered performance of two HLA-dedicated imputation algorithms - SNP2HLA and HIBAG - in a multiracial population of n = 1587 women with HLA genotyping data by gold standard methods. We first compared accuracy - defined as the percentage of correctly predicted alleles - of HLA-B and HLA-C imputation using SNP2HLA and HIBAG using a breakdown of the data set into an 80% training group and a 20% testing group. Estimates of accuracy for HIBAG were either the same or better than those for SNP2HLA. We then conducted a more thorough test of HIBAG imputation accuracy using five independent 10-fold cross-validation procedures with delineation of ancestry groups using ancestry informative markers. Overall accuracy for HIBAG was 89%. Accuracy by HLA gene was 93% for HLA-A, 84% for HLA-B, 94% for HLA-C, 83% for HLA-DQA1, 91% for HLA-DQB1 and 88% for HLA-DRB1. Accuracy was highest in the African ancestry group (the largest group) and lowest in the Hispanic group (the smallest group). Despite suboptimal imputation accuracy for some HLA gene/ancestry group combinations, the HIBAG algorithm has the advantage of providing posterior estimates of accuracy which enable the investigator to analyse subsets of the population with high predicted (e.g. >95%) imputation accuracy.
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Affiliation(s)
- M H Kuniholm
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - X Xie
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - K Anastos
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Medicine, Montefiore Medical Center, Bronx, NY, USA
| | - X Xue
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - L Reimers
- Department of Obstetrics & Gynecology and Women's Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - A L French
- Ruth M. Rothstein CORE Center, Stroger Hospital of Cook County, Chicago, IL, USA
| | - S J Gange
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - S G Kassaye
- Department of Medicine, Georgetown University Medical Center, Washington, DC, USA
| | - A Kovacs
- Department of Pediatrics, University of Southern California, Los Angeles, CA, USA
| | - T Wang
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - B E Aouizerat
- Bluestone Center for Clinical Research, New York University, New York, NY, USA.,Department of Oral and Maxillofacial Surgery, New York University, New York, NY, USA
| | - H D Strickler
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
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Xue X, Cao ZX, Zhang XT, Wang Y, Zhang YF, Chen ZX, Pan XB, Zuo SM. Overexpression of OsOSM1 Enhances Resistance to Rice Sheath Blight. Plant Dis 2016; 100:1634-1642. [PMID: 30686242 DOI: 10.1094/pdis-11-15-1372-re] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Sheath blight (SB), caused by Rhizoctonia solani, is one of the most destructive rice diseases worldwide. It has been difficult to generate SB-resistant varieties through conventional breeding because of the quantitative nature of rice resistance to SB. In this study, we found that overexpression of the OsOSM1 gene, encoding an osmotin protein belonging to the pathogenesis-related protein 5 family, is able to improve rice resistance to SB in field tests. Although there are two osmotin genes in rice, OsOSM1 is the one mainly expressed in leaf sheath at the booting stage, coinciding with the critical stage of SB development in the field. In addition, OsOSM1 expression is strongly induced by R. solani in SB-resistant rice variety YSBR1 but not in susceptible varieties, suggesting its involvement in SB resistance. Overexpression of OsOSM1 (OsOSM1ox) in susceptible variety Xudao 3 significantly increases resistance to SB in transgenic rice. The OsOSM1 mRNA levels in different transgenic lines are found to be positively correlated with their SB resistance levels. Intriguingly, although extremely high levels of OsOSM1 were detrimental to rice development, appropriately elevated levels of OsSOM1 were obtained that enhanced rice SB resistance without affecting rice development or grain yield. The OsSOM1 protein is localized on plasma membrane. OsOSM1 is upregulated by jasmonic acid (JA); furthermore, JA-responsive marker genes are induced in OsOSM1ox lines. These results suggest that the activation of JA signaling pathway may account for the increased resistance in transgenic OsOSM1ox lines. Taken together, our results demonstrate that OsOSM1 plays an important role in defense against rice SB disease and provides a new target for engineering resistance to SB.
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Affiliation(s)
- X Xue
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Z X Cao
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - X T Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Y Wang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Y F Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Z X Chen
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - X B Pan
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - S M Zuo
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
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Xue X, Ren Z, Zhang A, Yang Q, Zhang W, Liu F. Efficacy and safety of once-weekly glucagon-like peptide-1 receptor agonists compared with exenatide and liraglutide in type 2 diabetes: a systemic review of randomised controlled trials. Int J Clin Pract 2016; 70:649-56. [PMID: 27456750 DOI: 10.1111/ijcp.12847] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Once-weekly glucagon-like peptide-1 receptor agonists (GLP-1RAs) have shown promising results in the treatment of type 2 diabetes. Herein, we compared the efficacy and safety of once-weekly GLP-1RAs with exenatide and liraglutide separately. METHODS We systematically surveyed the pertinent literature using various databases. The randomised controlled trials that compared once-weekly GLP-1RAs with exenatide and liraglutide in type 2 diabetes were included. Our main end-points were control of glycaemia, body weight, hypoglycaemia and gastrointestinal adverse events (AEs). RESULTS Our analysis included eight trials involving 5531 patients. Exenatide-long-acting release (LAR), dulaglutide and taspoglutide were more effective than twice-daily exenatide in reducing glycosylated haemoglobin A1c (HbA1c) and fasting blood glucose (FBG) levels and achieving HbA1c targets (< 7.0% and ≤ 6.5%). Liraglutide was as effective as dulaglutide and more effective than exenatide-LAR and albiglutide in controlling glycaemia. With regard to the effectiveness in decreasing body weight, exenatide-LAR, dulaglutide and taspoglutide were similar to exenatide whereas exenatide-LAR, dulaglutide and albiglutide were inferior to liraglutide. Once-weekly GLP-1RAs, exenatide and liraglutide resulted in a similar incidence of hypoglycaemia and of gastrointestinal, serious, or other AEs. CONCLUSIONS Once-weekly GLP-1RAs were more effective in controlling glycaemia and equally effective in decreasing body weight than twice-daily exenatide but were inferior to liraglutide in controlling these two parameters (dulaglutide was similar with liraglutide in controlling glycaemia). Once-weekly GLP-1RAs, exenatide and liraglutide had a similar risk of causing AEs.
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Affiliation(s)
- X Xue
- Department of Endocrinology, Tengzhou Central People's Hospital, Shandong, China
| | - Z Ren
- Department of Endocrinology, Tengzhou Central People's Hospital, Shandong, China
| | - A Zhang
- Zaozhuang Science and Technology College, Shandong, China
| | - Q Yang
- Department of Medicine, Maternal and Child Care Service Centre of Tengzhou City, Shandong, China
| | - W Zhang
- Division of Endocrinology and Diabetology, Department of Internal Medicine II, University Hospital of Freiburg, Freiburg, Germany
| | - F Liu
- Department of Endocrinology, Tengzhou Central People's Hospital, Shandong, China
- Division of Endocrinology and Diabetology, Department of Internal Medicine II, University Hospital of Freiburg, Freiburg, Germany
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Rosner J, Gupta M, McGill M, Xue X, Chatterjee P, Yoshida-Hay M, Robeson W, Metz C. Magnesium deficiency during pregnancy in mice impairs placental size and function. Placenta 2016; 39:87-93. [DOI: 10.1016/j.placenta.2016.01.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 12/23/2015] [Accepted: 01/08/2016] [Indexed: 02/06/2023]
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Xue X, Xue X, Park J. Splenic arterial embolization: the interventionalist’s Swiss Army Knife. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Song CL, Li Q, Zhang JC, Wang JP, Xue X, Wang G, Shi YF, Diao HY, Liu B. Study of a novel coating strategy for coronary stents: evaluation of stainless metallic steel coated with VEGF and anti-CD34 antibody in vitro. Eur Rev Med Pharmacol Sci 2016; 20:311-316. [PMID: 26875902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To access the cytotoxicity and the effect on the endothelial progenitor cell (EPC) differentiation of stainless steel sheets simultaneously coated with VEGF and anti-CD34 antibody. MATERIALS AND METHODS 316L stainless steel sheets (diameter 6 mm, thickness 1 mm) were divided into the D-H (Bare metal), D-(H-V)10 (VEGF-coated metal) and D-(H-V)10-A (VEGF and anti-CD34 antibody co-coated metal) groups. The cytotoxicity effect of the three groups was measured using MTT assay. Percentage of EPC positive for CD34, CD133 and KDR were detected by flow cytometric assay. Endothelial cells positive for CD31 and VE-Cadherin were also detected by flow cytometric assay. RESULTS The percentages of isolated cells positive for CD133, CD34 and KDR were 89.9%, 91.3%, and 90.4%, respectively, suggesting that the EPCs were successfully isolated. MTT results showed that the stainless steel sheets coated with VEGF and anti-CD34 antibody have less toxicity on seeded EPCs than single VEGF coating or bare metal. We further found that with VEGF and anti-CD34 antibody co-coating could significantly promote the differentiation of EPCs in vitro when compared with that of single VEGF coating and bare metal. CONCLUSIONS Our study provided a preliminary evaluation of metallic steel sheet coated with VEGF and anti-CD34 antibody in vitro. Our findings suggest that simultaneously coating the stents with VEGF and anti-CD34 antibody might be a novel research direction for facilitating re-endothelialization in order to reduce ISR after stent implantation.
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Affiliation(s)
- C-L Song
- Department of Cardiology, the Second Hospital of Jilin University, Nanguan District, Changchun, China.
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Diaz J, Warren L, Helfner L, Xue X, Chatterjee PK, Gupta M, Solanki MH, Esposito M, Bonagura V, Metz CN. Obesity shifts house dust mite-induced airway cellular infiltration from eosinophils to macrophages: effects of glucocorticoid treatment. Immunol Res 2015; 63:197-208. [PMID: 26476732 PMCID: PMC6035857 DOI: 10.1007/s12026-015-8717-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Although classically characterized by chronic airway inflammation with eosinophil infiltration, asthma is a complex and multifactorial condition with numerous clinical phenotypes. Epidemiological studies strongly support the link between obesity and asthma and suggest that obesity precedes and promotes asthma development, increases asthma severity, and reduces steroid responsivity. Using a house dust mite (HDM) model of airway hyperresponsiveness in C57BL/6 mice, we examined the effects of diet-induced obesity on allergic airway inflammation and its treatment with dexamethasone. When compared to lean mice treated with HDM, obese-HDM mice had reduced plasma adiponectin, an anti-inflammatory adipokine, lower eosinophil and higher macrophage infiltration into the lungs and bronchoalveolar lavage (BAL) fluid, increased expression of total, M1, and M2 macrophage markers in the lungs, and enhanced Th2 and non-Th2 cytokine expression in the lungs. While Th2-associated responses in obese-HDM mice were suppressed by systemic dexamethasone, several Th2-independent responses, including total and M1 macrophage markers in the lungs, and lung CXC-motif ligand 1 (CXCL1) levels, were not improved following dexamethasone treatment. Thus, HDM combined with obesity promotes mixed localized inflammatory responses (e.g., M1, M2, Th1, and Th2) and shifts the cellular infiltration from eosinophils to macrophages, which are less sensitive to dexamethasone regulation. Because obese asthmatics exhibit more severe symptoms, lack a predominance of Th2 biomarkers, and are predicted to experience more steroid resistance when compared to lean asthmatics, this model could be used to study blunted steroid responses in obese-HDM mice and to define the macrophages found in the lungs.
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Affiliation(s)
- J Diaz
- Division of Allergy and Immunology, Department of Pediatrics, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, USA
- The Center for Immunology and Inflammation, The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - L Warren
- Department of Molecular Medicine, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, USA
| | - L Helfner
- Division of Allergy and Immunology, Department of Pediatrics, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, USA
- The Center for Immunology and Inflammation, The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - X Xue
- The Center for Immunology and Inflammation, The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - P K Chatterjee
- The Center for Immunology and Inflammation, The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - M Gupta
- The Center for Immunology and Inflammation, The Feinstein Institute for Medical Research, Manhasset, NY, USA
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, USA
| | - M H Solanki
- The Center for Immunology and Inflammation, The Feinstein Institute for Medical Research, Manhasset, NY, USA
- Department of Pathology, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, USA
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, USA
| | - M Esposito
- Department of Pathology, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, USA
| | - V Bonagura
- Division of Allergy and Immunology, Department of Pediatrics, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, USA
- The Center for Immunology and Inflammation, The Feinstein Institute for Medical Research, Manhasset, NY, USA
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, USA
| | - C N Metz
- The Center for Immunology and Inflammation, The Feinstein Institute for Medical Research, Manhasset, NY, USA.
- Department of Molecular Medicine, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, USA.
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, USA.
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