1
|
Hrytsyna O, Sladek J, Sladek V, Deng Q, Hrytsyna M. Rayleigh wave propagation in centrosymmetric materials with micro-stiffness, flexoelectric and micro-inertia effects. Ultrasonics 2024; 141:107317. [PMID: 38657430 DOI: 10.1016/j.ultras.2024.107317] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/12/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024]
Abstract
A theoretical investigation of Rayleigh waves propagation in polarized media has been carried out using a reformulated flexoelectric theory for isotropic dielectrics with micro-inertia effect. Within this non-classical theory, the internal energy density is the functional of the strain tensor, dilatation gradient, deviatoric part of stretch gradient and rotation gradient tensors, polarization vector, and polarization gradient. The obtained system of governing equations additionally contains three material length-scale parameters to account the micro-stiffness effect, one material constant to capture the micro-inertia effect, two flexoelectric constants to describe the flexoelectric effect and three length scale parameters related to the polarization gradient. To solve the coupled governing equations, the method of Lamé-type potentials for mechanical displacement and electric polarization vectors is used. The influences of various factors such as micro-stiffness, flexoelectricity, electric quadrupoles and micro-inertia effects on the phase velocity of the Rayleigh waves in a homogeneous isotropic half-space are studied. It is found that above effects become significant with the increase of the wavenumber. This study can be important for the investigation of high frequency surface acoustic waves in dielectric materials.
Collapse
Affiliation(s)
- O Hrytsyna
- Department of Mechanics, Institute of Construction and Architecture Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava 84503, Slovakia.
| | - J Sladek
- Department of Mechanics, Institute of Construction and Architecture Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava 84503, Slovakia.
| | - V Sladek
- Department of Mechanics, Institute of Construction and Architecture Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava 84503, Slovakia.
| | - Q Deng
- Department of Engineering Mechanics, Huazhong University of Science and Technology, Luoyu Road, 1037 Wuhan, China.
| | - M Hrytsyna
- Department of Mechanics, Institute of Construction and Architecture Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava 84503, Slovakia.
| |
Collapse
|
2
|
Fan Y, Pan Y, Jia L, Gu S, Liu B, Mei Z, Lv C, Huang H, Zhu G, Deng Q. BIRC5 facilitates cisplatin-chemoresistance in a m 6 A-dependent manner in ovarian cancer. Cancer Med 2023; 13:e6811. [PMID: 38112021 PMCID: PMC10807614 DOI: 10.1002/cam4.6811] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 08/26/2023] [Accepted: 09/26/2023] [Indexed: 12/20/2023] Open
Abstract
Cisplatin-based chemotherapy is the standard treatment for metastatic ovarian cancer (OC). However, chemoresistance continues to pose significant clinical challenges. Recent research has highlighted the baculoviral inhibitor of the apoptosis protein repeat-containing 5 (BIRC5) as a member of the inhibitor of the apoptosis protein (IAP) family. Notably, BIRC5, which has robust anti-apoptotic capabilities, is overexpressed in numerous cancers. Its dysfunction has been linked to challenges in cancer treatment. Yet, the role of BIRC5 in the chemoresistance of OC remains elusive. In our present study, we observed an upregulation of BIRC5 in cisplatin-resistant cell lines. This upregulation was associated with enhanced chemoresistance, which was diminished when the expression of BIRC5 was silenced. Intriguingly, BIRC5 exhibited a high number of N6-methyladenosine (m6 A) binding sites. The modification of m6 A was found to enhance the expression of BIRC5 by recognizing and binding to the 3'-UTR of mRNA. Additionally, the insulin-like growth factor 2 mRNA-binding protein 1 (IGF2BP1) was shown to stabilize BIRC5 mRNA, synergizing with METTL3 and intensifying chemoresistance. Supporting these in vitro findings, our in vivo experiments revealed that tumors were significantly smaller in size and volume when BIRC5 was silenced. This reduction was notably counteracted by co-silencing BIRC5 and overexpressing IGF2BP1. Our results underscored the pivotal role of BIRC5 in chemoresistance. The regulation of its expression and the stability of its mRNA were influenced by m6 A modifications involving both METTL3 and IGF2BP1. These insights presented BIRC5 as a promising potential therapeutic target for addressing cisplatin resistance in OC.
Collapse
Affiliation(s)
- Yadan Fan
- Department of GynecologyThe Second Affiliated Hospital of Hainan Medical UniversityHaikouChina
| | - Yinglian Pan
- Department of OncologyThe First Affiliated Hospital of Hainan Medical CollegeHaikouChina
| | - Liping Jia
- Department of GynecologyThe Second Affiliated Hospital of Hainan Medical UniversityHaikouChina
| | - Shuzhen Gu
- Department of GynecologyThe Second Affiliated Hospital of Hainan Medical UniversityHaikouChina
| | - Binxin Liu
- Department of GynecologyThe Second Affiliated Hospital of Hainan Medical UniversityHaikouChina
| | - Ziman Mei
- Department of GynecologyThe Second Affiliated Hospital of Hainan Medical UniversityHaikouChina
| | - Chunyan Lv
- Department of GynecologyThe Second Affiliated Hospital of Hainan Medical UniversityHaikouChina
| | - Haohao Huang
- Department of NeurosurgeryGeneral Hospital of Central Theater Command of Chinese People's Liberation ArmyWuhanChina
| | - Genhai Zhu
- Department of GynecologyHainan General Hospital, Hainan Affiliated Hospital of Hainan Medical UniversityHaikouChina
| | - Qingchun Deng
- Department of GynecologyThe Second Affiliated Hospital of Hainan Medical UniversityHaikouChina
| |
Collapse
|
3
|
Ling K, Dou Y, Yang N, Deng L, Wang Y, Li Y, Yang L, Chen C, Jiang L, Deng Q, Li C, Liang Z, Zhang J. Genome editing mRNA nanotherapies inhibit cervical cancer progression and regulate the immunosuppressive microenvironment for adoptive T-cell therapy. J Control Release 2023; 360:496-513. [PMID: 37423524 DOI: 10.1016/j.jconrel.2023.07.007] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/11/2023]
Abstract
CRISPR/Cas9-based genome editing is promising for therapy of cervical cancer by precisely targeting human papillomavirus (HPV). To develop CRISPR/Cas9-based genome editing nanotherapies, a pH-responsive hybrid nonviral nanovector was constructed for co-delivering Cas9 mRNA and guide RNAs (gRNAs) targeting E6 or E7 oncogenes. The pH-responsive nanovector was fabricated using an acetalated cyclic oligosaccharide (ACD), in combination with low molecular weight polyethyleneimine. Thus obtained hybrid ACD nanoparticles (defined as ACD NP) showed efficient loading for both Cas9 mRNA and E6 or E7 gRNA, giving rise to two pH-responsive genome editing nanotherapies E6/ACD NP and E7/ACD NP, respectively. Cellularly, ACD NP exhibited high transfection but low cytotoxicity in HeLa cervical carcinoma cells. Also, efficient genome editing of target genes was achieved in HeLa cells, with minimal off-target effects. In mice bearing HeLa xenografts, treatment with E6/ACD NP or E7/ACD NP afforded effective editing of target oncogenes and considerable antitumor activities. More importantly, treatment with E6/ACD NP or E7/ACD NP notably promoted CD8+ T cell survival by reversing the immunosuppressive microenvironment, thereby leading to synergistic antitumor effects by combination therapy using the gene editing nanotherapies and adoptive T-cell transfer. Consequently, our pH-responsive genome editing nanotherapies deserve further development for the treatment of HPV-associated cervical cancer, and they can also serve as promising nanotherapies to improve efficacies of other immune therapies against different advanced cancers by regulating the immunosuppressive tumor microenvironment.
Collapse
Affiliation(s)
- Kaijian Ling
- Department of Obstetrics and Gynecology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yin Dou
- Department of Pharmaceutics, College of Pharmacy, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Neng Yang
- Department of Obstetrics and Gynecology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Li Deng
- Department of Obstetrics and Gynecology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yanzhou Wang
- Department of Obstetrics and Gynecology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yudi Li
- Department of Obstetrics and Gynecology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Leiyan Yang
- Department of Obstetrics and Gynecology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Cheng Chen
- Department of Obstetrics and Gynecology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Lupin Jiang
- Department of Obstetrics and Gynecology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Qingchun Deng
- Department of Obstetrics and Gynecology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Chenwen Li
- Department of Pharmaceutics, College of Pharmacy, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Zhiqing Liang
- Department of Obstetrics and Gynecology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Jianxiang Zhang
- Department of Pharmaceutics, College of Pharmacy, Third Military Medical University (Army Medical University), Chongqing 400038, China; State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| |
Collapse
|
4
|
Chen Q, Deng Q, Pan Y, Ding X, Liu J. Hypoxia-induced miR-653 enhances colorectal cancer progression by targeting circSETD3/KLF6 axis. J Cancer 2023; 14:163-173. [PMID: 36605481 PMCID: PMC9809325 DOI: 10.7150/jca.78865] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 12/03/2022] [Indexed: 01/04/2023] Open
Abstract
The present work focused on exploring the role and underlying molecular mechanism of action of the non-coding RNA (miRNA/circRNA) in colorectal cancer (CRC). Here, we found that miR-653 was dramatically upregulated in CRC tissues and cells. CRC Patients with high miR-653 level possessed poor prognosis. miR-653 elevated proliferation, migration, and invasion, meanwhile suppressed apoptosis of CRC cells. Furthermore, circSETD3 directly sponged miR-653 and negatively regulate miR-653 to affect proliferation, migration, invasion, and apoptosis of CRC cells. Moreover, miR-653 served as carcinoma-promoting gene via targeting KLF6, and circSETD3 knockdown significantly reversed the inhibitory effect of KLF6 overexpression on CRC cells. In addition, hypoxia obviously increased expression of miR-653. Knockdown of miR-653 decreased the effects of hypoxia on CRC cell proliferation, migration and invasion. Taken together, these findings indicated that circSETD3/miR-653/KLF6 axis may be an effective therapeutic target for CRC patients.
Collapse
Affiliation(s)
- Qian Chen
- Department of Gastroenterology, Wuhan Fourth Hospital, Wuhan 430033, China
| | - Qingchun Deng
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570216, China
| | - Yinglian Pan
- Department of Medical Oncology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China
| | - Xiangwu Ding
- Department of Gastroenterology, Wuhan Fourth Hospital, Wuhan 430033, China
| | - Jing Liu
- Department of Neurology, Wuhan Fourth Hospital, Wuhan 430033, China.,✉ Corresponding author: Jing Liu, E-mail:
| |
Collapse
|
5
|
Liu XY, Liu ZG, Deng Q, Cheng XR, Hu B, Liu LS, Wang XH. [Associations between 24-hour urinary sodium excretion and all-cause mortality in adults living in north China]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:1220-1228. [PMID: 36517444 DOI: 10.3760/cma.j.cn112148-20220421-00295] [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: 06/17/2023]
Abstract
Objective: To investigate the associations between 24-hour urinary sodium excretion (24hUNaE) and all-cause mortality in adult Northern Chinese population. Methods: Data from this study were derived from the prospective urban and rural epidemiology (PURE) study in north China. Baseline information of all participants were obtained by face to face interview through trained research staffs based on questionnaires, and morning fasting urine samples of participants were collected to estimate 24hUNaE and 24-hour potassium excretion (24hUKE). Multivariable frailty Cox regression models were used to explore the association between 24hUNaE (<3.00, 3.00-3.99, 4.00-4.99, 5.00-5.99 and ≥6 g/d) and all-cause death. Results: A total of 27 310 participants were included in this study. The mean 24hUNaE was (5.84±1.73) g/d. After a median follow-up of 8.8 years, 1 024 participants died (3.7%), including 390 cardiovascular related deaths and 591 non-cardiovascular related deaths. The cause of death of the remaining patients could not be determined. Using 24hUNaE level of 4.00-4.99 g/d as the reference group, after fully adjustment, 24hUNaE ≥6.00 g/d was associated with an increased risk of all-cause death (HR=1.24, 95%CI: 1.02-1.49) and cardiovascular related death (HR=1.39, 95%CI: 1.02-1.88). 24hUNaE<3.00 g/d was associated with increased risk of all-cause mortality (HR=1.38, 95%CI: 0.96-1.99). There was no significant association between 24hUNaE and non-cardiovascular related death. Furthermore, using the combination of 24hUNaE 4.00-4.99 g/d and 24hUKE≥2.11 g/d as the reference group, the highest risk occurred in participants with the combination of low sodium (<3.00 g/d) and low potassium (<2.11 g/d). Conclusion: 24hUNaE equal or higher than 6 g/d or lower than 3 g/d is associated with increased risk of all-cause mortality and cardiovascular related death in Northern Chinese population. Besides, moderate sodium intake in combination with increased potassium intake might reduce the risk of all-cause death.
Collapse
Affiliation(s)
- X Y Liu
- Department of Phase Ⅰ Clinical Trial Center, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - Z G Liu
- Department of Pharmacy, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Q Deng
- State Key Laboratory of Cardiovascular Disease, Fuwai, Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102300, China
| | - X R Cheng
- State Key Laboratory of Cardiovascular Disease, Fuwai, Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102300, China
| | - B Hu
- State Key Laboratory of Cardiovascular Disease, Fuwai, Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102300, China
| | - L S Liu
- Beijing Hypertension League Institute, Beijing 100039, China
| | - X H Wang
- Department of Phase Ⅰ Clinical Trial Center, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| |
Collapse
|
6
|
Deng Q, Gong Y. EP05.01-028 Thoracic Radiotherapy of Baseline Severe Pulmonary Dysfunction NSCLC Patients and Predictive Analysis for Acute Radiation Pneumonitis. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.475] [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]
|
7
|
Dong L, Li Y, Wen J, Gao W, Tian Y, Deng Q, Liu Z. Functional characteristics and dominant enhanced oil recovery mechanism of polymeric surfactant. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118921] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
8
|
Pan Y, Fan Y, Lu Y, Peng S, Lin H, Deng Q. Molecular characterization of matrix metalloproteinase gene family across primates. Aging (Albany NY) 2022; 14:3425-3445. [PMID: 35444067 PMCID: PMC9085222 DOI: 10.18632/aging.204021] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 04/12/2022] [Indexed: 11/25/2022]
Abstract
Deregulation of matrix metalloproteinases (MMPs) contributes considerably to cancers, psychiatric disorders, macular degeneration and bone diseases. The use of humans in the development of MMPs as prognostic biomarkers and therapeutic targets is complicated by many factors, while primate models can be useful alternatives for this purpose. Here, we performed genome-enabled identification of putative MMPs across primate species, and comprehensively investigated the genes. Phylogenetic topology of the MMP family showed each type formulates a distinct clade, and was further clustered to classes, largely agreeing with classification based on biochemical properties and domain organization. Across primates, the excess of candidate sites of positive selection was detected for MMP-19, in addition to 1-3 sites in MMP-8, MMP-10 and MMP-26. MMP-26 showed Ka/Ks value above 1 between human and chimpanzee copies. We observed two copies of MMP-19 in the old-world monkey genomes, suggesting gene duplication at the early stage of or prior to the emergence of the lineage. Furin-activatable MMPs demonstrate the most variable properties regarding Domain organization and gene structure. During human aging, MMP-11 showed gradually decreased expression in testis, so as MMP-2, MMP-14, MMP15 and MMP-28 in ovary, while MMP-7 and MMP-21 showed elevated expression, implying their distinct roles in different reproductive organs. Co-expression clusters were formed among human MMPs both within and across classes, and expression correlation was observed in MMP genes across primates. Our results illuminate the utilization of MMPs for the discovery of prognostic biomarkers and therapeutic targets for aging-related diseases and carry new messages on MMP classification.
Collapse
Affiliation(s)
- Yinglian Pan
- Department of Medical Oncology, The First Affiliated Hospital of Hainan Medical University, Haikou 570102, Hainan, People's Republic of China
| | - Yadan Fan
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570311, Hainan, People's Republic of China
| | - Yanda Lu
- Department of Medical Oncology, The First Affiliated Hospital of Hainan Medical University, Haikou 570102, Hainan, People's Republic of China
| | - Siyuan Peng
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570311, Hainan, People's Republic of China
| | - Haixue Lin
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570311, Hainan, People's Republic of China
| | - Qingchun Deng
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570311, Hainan, People's Republic of China
| |
Collapse
|
9
|
Lei Q, Deng Q, Shen XH, Yu WY. [Dedifferentiated liposarcoma originating in the uterus: report of a case]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1059-1061. [PMID: 34496502 DOI: 10.3760/cma.j.cn112151-20210124-00074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Q Lei
- Ningbo Clinical Pathology Diagnostic Center, Ningbo 315020, China
| | - Q Deng
- Ningbo Clinical Pathology Diagnostic Center, Ningbo 315020, China
| | - X H Shen
- Ningbo Clinical Pathology Diagnostic Center, Ningbo 315020, China
| | - W Y Yu
- Ningbo Clinical Pathology Diagnostic Center, Ningbo 315020, China
| |
Collapse
|
10
|
Bedoya-Reina OC, Li W, Arceo M, Plescher M, Bullova P, Pui H, Kaucka M, Kharchenko P, Martinsson T, Holmberg J, Adameyko I, Deng Q, Larsson C, Juhlin CC, Kogner P, Schlisio S. Single-nuclei transcriptomes from human adrenal gland reveal distinct cellular identities of low and high-risk neuroblastoma tumors. Nat Commun 2021; 12:5309. [PMID: 34493726 PMCID: PMC8423786 DOI: 10.1038/s41467-021-24870-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 07/08/2021] [Indexed: 12/23/2022] Open
Abstract
Childhood neuroblastoma has a remarkable variability in outcome. Age at diagnosis is one of the most important prognostic factors, with children less than 1 year old having favorable outcomes. Here we study single-cell and single-nuclei transcriptomes of neuroblastoma with different clinical risk groups and stages, including healthy adrenal gland. We compare tumor cell populations with embryonic mouse sympatho-adrenal derivatives, and post-natal human adrenal gland. We provide evidence that low and high-risk neuroblastoma have different cell identities, representing two disease entities. Low-risk neuroblastoma presents a transcriptome that resembles sympatho- and chromaffin cells, whereas malignant cells enriched in high-risk neuroblastoma resembles a subtype of TRKB+ cholinergic progenitor population identified in human post-natal gland. Analyses of these populations reveal different gene expression programs for worst and better survival in correlation with age at diagnosis. Our findings reveal two cellular identities and a composition of human neuroblastoma tumors reflecting clinical heterogeneity and outcome.
Collapse
Affiliation(s)
- O C Bedoya-Reina
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden.
| | - W Li
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - M Arceo
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - M Plescher
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - P Bullova
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - H Pui
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - M Kaucka
- Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - P Kharchenko
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.,Harvard Stem Cell Institute, Cambridge, MA, USA
| | - T Martinsson
- Department of Pathology and Genetics, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - J Holmberg
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - I Adameyko
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.,Department of Neuroimmunology, Center for Brain Research, Medical University of Vienna, Vienna, Austria
| | - Q Deng
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - C Larsson
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - C C Juhlin
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - P Kogner
- Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - S Schlisio
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden.
| |
Collapse
|
11
|
Wang J, Mou N, Meng JX, Li X, Jiang YY, Yuan T, Deng Q. [Activity comparison of humanized CD19 CAR-T cells with murine CD19 CAR-T on Nalm-6 cells and xenograft tumor model]. Zhonghua Zhong Liu Za Zhi 2021; 43:827-832. [PMID: 34407586 DOI: 10.3760/cma.j.cn112152-20190622-00392] [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 compare the activity difference of the high affinity humanized CD19 chimeric antigen receptor (CAR)-T cells and murine CD19 CAR-T cells. Methods: Peripheral venous blood T cells from 8 healthy volunteers were collected and infected with humanized and murine CD19 CAR lentivirus. Human and murine CD19 CAR-T cells were prepared and cell proliferation was detected by cell counting kit-8 (CCK-8) method. The cytotoxicity of CD3(+) T cells, humanized and murine CD19 CAR-T cells to NALM-6 cells was detected by lactate dehydrogenase assay. Thirty BAL B/c nude mice transplanted with NALM-6 cells were randomly divided into 3 groups with 10 mice in each group and injected humanized CD19 CAR-T cells, mouse CD19 CAR-T cells and control CD3(+) T cell via tail vein, respectively. The proportion of NALM-6 cells in peripheral blood and the proportion of CD19 CAR-T cells in T cells from the vein of the inner canthus were detected by flow cytometry. The overall survival of BAL B/c nude mice was observed. Results: The proliferation of mouse and humanized CD19 CAR-T cells were (68.50±0.93)% and (80.63±1.41)%, respectively (t=20.353, P<0.001) after cultured in vitro for 24 hours, and were (91.38±1.41)% and (148.13±1.25)%, respectively (t=85.364, P<0.001) after cultured for 48 hours. When the effect to target ratio was 1∶1, there was no difference between the humanized and murine CD19 CAR-T cell group after co-culture for 24 hours (P=0.169), while the killing activity of humanized CD19 CAR-T cells against NALM-6 cells was higher than that of murine CD19 CAR-T cells (P<0.01) after 48 hours of co-culture. When the effect to target ratio was 4∶1, the cytotoxicity of humanized CD19 CAR-T cells against NALM-6 cells was higher than that of murine CD19 CAR-T cells in co-culture for 24 and 48 hours (P<0.01). On the seventh day of CD19 CAR-T cell therapy, the proportion of NALM-6 cells in the peripheral blood of BAL B/c nude mice decreased to the lowest level in the humanized CD19 CAR-T cell group and the murine CD19 CAR-T cell group. After 21 days, the proportion of NALM-6 cells in the murine CD19 CAR-T cell group was higher than that in the humanized CD19 CAR-T cell group (P(21 d)=0.001, P(28 d)<0.001, P(35 d)<0.001). The proportion of humanized and murine CD19 CAR-T cells in the peripheral blood reached the peaks after 7 days of therapy, and the proportion of humanized CD19 CAR-T cells was higher than that of murine CAR-T cells (P(7 d)=0.002). The CD19 CAR-T cells disappeared in the peripheral blood in the murine CD19 CAR-T cell group after 14 days of therapy, while in the humanized CD19 CAR-T cell group it disappeared after 21 days of therapy. The median survival of BAL B/c nude mice in the murine CD19 CAR-T cell group and the humanized CD19 CAR-T cell group was 42 days and 63 days, respectively (χ(2)=15.382, P<0.001). Conclusions: High affinity humanized CD19 CAR-T cells have stronger proliferation, higher cytotoxicity and longer survival time compared with those of murine CD19 CAR-T cells. The results indicate that the clinical efficacy of humanized CD19 CAR-T cells would be better than that of murine CD19 CAR-T cells.
Collapse
Affiliation(s)
- J Wang
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - N Mou
- Shanghai Genbase Biotechnology Co., Ltd. Shanghai 201203, China
| | - J X Meng
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - X Li
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Y Y Jiang
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - T Yuan
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Q Deng
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| |
Collapse
|
12
|
Guo W, Liang W, Deng Q, Zou X. A Multimodal Affinity Fusion Network for Predicting the Survival of Breast Cancer Patients. Front Genet 2021; 12:709027. [PMID: 34490038 PMCID: PMC8417828 DOI: 10.3389/fgene.2021.709027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 06/29/2021] [Indexed: 01/27/2023] Open
Abstract
Accurate survival prediction of breast cancer holds significant meaning for improving patient care. Approaches using multiple heterogeneous modalities such as gene expression, copy number alteration, and clinical data have showed significant advantages over those with only one modality for patient survival prediction. However, existing survival prediction methods tend to ignore the structured information between patients and multimodal data. We propose a multimodal data fusion model based on a novel multimodal affinity fusion network (MAFN) for survival prediction of breast cancer by integrating gene expression, copy number alteration, and clinical data. First, a stack-based shallow self-attention network is utilized to guide the amplification of tiny lesion regions on the original data, which locates and enhances the survival-related features. Then, an affinity fusion module is proposed to map the structured information between patients and multimodal data. The module endows the network with a stronger fusion feature representation and discrimination capability. Finally, the fusion feature embedding and a specific feature embedding from a triple modal network are fused to make the classification of long-term survival or short-term survival for each patient. As expected, the evaluation results on comprehensive performance indicate that MAFN achieves better predictive performance than existing methods. Additionally, our method can be extended to the survival prediction of other cancer diseases, providing a new strategy for other diseases prognosis.
Collapse
Affiliation(s)
- Weizhou Guo
- College of Computer and Information Science, Southwest University, Chongqing, China
| | - Wenbin Liang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, China
| | - Qingchun Deng
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Hainan, China
| | - Xianchun Zou
- College of Computer and Information Science, Southwest University, Chongqing, China
| |
Collapse
|
13
|
Cui R, Li P, Li Q, Mu J, Jiang YL, Jiang YY, Deng Q. [Humanized BCMA CAR-T cell salvage therapy in two refractory multiple myeloma patients who progressed after their murine BCMA CAR-T cell therapy]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:502-507. [PMID: 34384157 PMCID: PMC8295619 DOI: 10.3760/cma.j.issn.0253-2727.2021.06.010] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the efficacy and safety of humanized anti-BCMA chimeric antigen receptor modified (BCMA CAR) -T cell therapy after disease progression with their murine BCMA CAR-T cell therapy in patients with relapsed/refractory multiple myeloma (MM) . Methods: Study participants underwent leukapheresis to collect T cells for BCMA CAR-T manufacturing. Patients were pretreated with intensive chemotherapy (fludarabine combined with cytarabine) before CAR-T therapy. Adverse events (AEs) , CAR DNA expansion, and cytokine were monitored. In vitro, transfection efficacy, specific cytotoxicity, and inflammatory response were detected when co-cultured with effector and target cells. Results: Patient (PT) 1 and 2 achieved complete remission (CR) and disease stability at 3 months post murine CAR-T therapy. However, 16 and 18 months later, they experienced progression of disease (PD) , and patient 1 presented with extramedullary disease at PD. Both of the patients received humanized CAR-T therapy and achieved partial remission (PR) and very good partial remission (VGPR) post humanized CAR-T therapy. PT1 achieved CR of the soft tissue masses at 4 months post humanized CAR-T therapy. Notably, the median peak of the BCMA CAR-T cells, copy of BCMA CAR gene, persistence of BCMA CAR-T, and the peak levels of IL-6, IL-8, IL-10, IFN-γ and TNF-α were higher in humanized CAR-T therapy than those in the murine CAR-T therapy. During the murine CAR-T therapy, both of the patients experienced grade 1 CRS and no ICANS. PT1 experienced grade 3 CRS and grade 2 ICANS during humanized CAR-T therapy, which were relieved by supportive care. Grade 2 CRS was observed for patient 2 during humanized CAR-T therapy. Humanized BCMA CAR-T cells showed a higher inflammatory response and in vitro cytotoxicity than that of murine BCMA CAR-T cells with effector/targets cells at 1∶1 over 48 hours (P<0.001) . The proportions of residual cells in humanized BCMA CAR-T and murine CAR-T were (17.38±5.18) % vs (28.27±4.58) %, (13.25±1.62) % vs (22.77±1.77) % for PT1 and PT2, respectively. Conclusions: The humanized BCMA CAR-T cell therapy was efficient and safe for patients who experienced progression of disease after the murine CAR-T therapy, especially for patients with extramedullary disease.
Collapse
Affiliation(s)
- R Cui
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - P Li
- Department of Hematology, Dezhou People's Hospital, Shandong 253000, China
| | - Q Li
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - J Mu
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Y L Jiang
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Y Y Jiang
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Q Deng
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| |
Collapse
|
14
|
Jiang X, Deng Q, Stener-Victorin E. Is there a shared genetic basis and causal relationship between polycystic ovary syndrome and psychiatric disorders: evidence from a comprehensive genetic analysis. Hum Reprod 2021; 36:2382-2391. [PMID: 34051085 DOI: 10.1093/humrep/deab119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 12/05/2020] [Revised: 04/01/2021] [Indexed: 11/12/2022] Open
Abstract
STUDY QUESTION Is there a shared genetic basis or causal relationship between polycystic ovary syndrome (PCOS) and a range of psychiatric disorders? SUMMARY ANSWER Genome-wide genetic correlation analysis and bidirectional Mendelian randomisation (MR) analysis suggest no shared genetic basis or causal relationship of PCOS with psychiatric disorders including depression, anxiety, schizophrenia and bipolar disorder. WHAT IS KNOWN ALREADY The comorbidity of PCOS with a range of psychiatric disorders has been recognised by epidemiological investigations yet a causal relationship remains unclear. Understanding of how genetic variations contribute to the susceptibility to PCOS and psychiatry disorders could provide meaningful insights into disease mechanisms. STUDY DESIGN, SIZE, DURATION We incorporated summary statistics from the hitherto largest genome-wide association studies (GWAS) conducted in subjects with PCOS (Ncase = 9322) or four common psychiatric disorders (depression, anxiety, schizophrenia and bipolar disorder) (Ncase ranges between 20 352 and 246 363), all of European ancestry. PARTICIPANTS/MATERIALS, SETTING, METHODS We quantified pairwise genetic correlation to understand the shared genetic predisposition using genome-wide genetic variants. We performed a two-sample bidirectional Mendelian randomisation analysis to make causal inferences, using GWAS-identified 102 depression-associated genetic instruments, 6 anxiety-associated instruments, 179 schizophrenia-associated instruments, 30 bipolar disorder-associated instruments and 14 PCOS-associated instruments. We performed several important sensitivity analyses examining sex hormones and utilising different MR approaches. MAIN RESULTS AND THE ROLE OF CHANCE We did not find significant genetic correlations (rg) for PCOS with psychiatric disorders (depression (rg = 0.09, P = 0.06), anxiety (rg = 0.15, P = 0.06), schizophrenia (rg = 0.02, P = 0.59), bipolar disorder (rg = 0.08, P = 0.19)). Genetic predisposition to PCOS was associated with depression in some of our MR approaches, without any evidence of pleiotropy (PMR-Egger intercept = 0.60). However, this weak PCOS-depression causal association attenuated to null after adjusting for BMI (1.00 (0.99-1.02), P = 0.28). On the contrary, we did not observe any statistically significant association between genetically instrumented PCOS with other psychiatric disorders (anxiety 1.01 (0.93-1.08), P = 0.89; schizophrenia 1.03 (0.97-1.10), P = 0.37; bipolar disorder 0.96 (0.90-1.03), P = 0.26). Bidirectional MR did not reveal an effect by which mental health conditions influenced PCOS risk. LIMITATIONS, REASONS FOR CAUTION Despite our study being the largest in sample size of its kind, the overall negligible causal relationship between PCOS and psychiatric outcomes may reflect a true null association but may also be due to a true effect too modest to be detected. We were not able to investigate PCOS subtypes and used an overall heterogenous PCOS sample due to limited availability of data. WIDER IMPLICATIONS OF THE FINDINGS Our comprehensive analysis does not identify a shared genetic basis of PCOS with psychiatric diseases. Although genetically instrumented PCOS appears to correlate with depression, such an effect is likely mediated by BMI, suggesting a role of non-genetic exposures underlying the observed comorbidity. STUDY FUNDING/COMPETING INTEREST(S) The work was supported by the Swedish Medical Research Council 2018-02435 (to E.S.V.), Novo Nordisk Foundation NNF19OC0056647 (to E.S.V.), the Adlerbert Research Foundation (to E.S.V.), the SRP in Diabetes at Karolinska Institutet (to E.S.V.) and the Swedish Research Council VR 2018-02247 (to X.J.). The funders had no influence on the data collection, analyses or conclusions of the study. No conflict of interests to declare. TRIAL REGISTRATION NUMBER N/A.
Collapse
Affiliation(s)
- X Jiang
- Department of Nutrition, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China.,Department of Clinical Neuroscience, Karolinska Institute, Solna, Stockholm, Sweden.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Q Deng
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - E Stener-Victorin
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
15
|
Fu F, Li LS, Du K, Li R, Yu QX, Wang D, Lei TY, Deng Q, Nie ZQ, Zhang WW, Yang X, Han J, Zhen L, Pan M, Zhang LN, Li FC, Zhang YL, Jing XY, Li DZ, Liao C. [Analysis of families with fetal congenital abnormalities but negative prenatal diagnosis by whole exome sequencing]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:458-466. [PMID: 34304437 DOI: 10.3760/cma.j.cn112141-20210118-00028] [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: 11/05/2022]
Abstract
Objective: To evaluate the value of whole exome sequencing (WES) in prenatal clinical application. Methods: A total of 1 152 cases of congenital abnormal [including structural malformation, nuchal translucency (NT) thickening and intrauterine growth restriction] with traditional prenatal diagnosis [including G-band karyotype analysis and chromosome microarray analysis (CMA)] negative were analyzed. The congenital abnormal fetuses were divided into retrospective group and prospective group according to the time of WES detection, that is whether the pregnancy termination or not. According to the specific location of fetal malformation and their family history, the cohort was divided into subgroups. The clinical prognosis of all fetuses were followed up, and the effect of WES test results on pregnancy decision-making and clinical intervention were analyzed. According to the follow-up results, the data of fetuses with new phenotypes in the third trimester or after birth were re-analyzed. Results: Among 1 152 families who received WES, 5 families were excluded because of nonbiological parents. Among the remaining 1 147 families, 152 fetuses obtained positive diagnosis (13.3%,152/1 147), including 74 fetuses in the retrospective group (16.1%,74/460) and 78 fetuses in the prospective group (11.4%,78/687). In fetuses with negative CMA and G-band karyotype analysis results but new phenotypes in the third trimester or after birth, the positive rate by WES data re-analysis was 4.9% (8/163). A total of 34 (21.3%, 34/160) fetuses were directly affected by the corresponding positive molecular diagnosis. Among 68 cases of live births with diagnostic variation grade 4, 29 cases (42.7%, 29/68) received appropriate medical intervention through rapid review of WES results. Conclusions: WES could increase the detection rate of abnormal fetuses with negative G-banding karyotype analysis and CMA by 13.3%. Prenatal WES could guide pregnancy decision-making and early clinical intervention. It might be an effective strategy to pay attention to the special follow-up of the third trimester and postnatal fetus and to re-analyze the WES data.
Collapse
Affiliation(s)
- F Fu
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - L S Li
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - K Du
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - R Li
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Q X Yu
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - D Wang
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - T Y Lei
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Q Deng
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Z Q Nie
- Guangdong Institute of Cardiovascular Disease, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - W W Zhang
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - X Yang
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - J Han
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - L Zhen
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - M Pan
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - L N Zhang
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - F C Li
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Y L Zhang
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - X Y Jing
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - D Z Li
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - C Liao
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| |
Collapse
|
16
|
Li Q, Deng HB, Liu MJ, Lyu CC, Zhu HB, Wang J, Jiang YL, Pu YD, Jiang YY, Li W, Deng Q. [Analysis of local reactions and efficacy of CD19 chimeric antigen receptor-modified T cells therapy in recurrent/refractory B-cell lymphoma with >7.5 cm lesions]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:570-576. [PMID: 34455744 PMCID: PMC8408490 DOI: 10.3760/cma.j.issn.0253-2727.2021.07.007] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
目的 观察病灶>7.5 cm的复发/难治B细胞非霍奇金淋巴瘤(R/R NHL)患者CD19嵌合抗原受体T细胞(CAR-T细胞)治疗的肿瘤局部反应及疗效。 方法 以2018年8月至2020年5月接受CD19 CAR-T细胞治疗的病灶>7.5 cm的32例R/R NHL患者为研究对象,流式细胞仪检测CD19CAR-T细胞的体内扩增情况;酶联免疫吸附测定法检测患者外周血中细胞因子水平;观察全身不良反应及肿瘤局部反应,分析总有效率(ORR)及总生存(OS)情况。 结果 ① 32例患者CAR-T细胞治疗后,13例获得完全缓解(CR)(40.63%),10例获得部分缓解(PR)(31.25%),ORR为71.88%。② 23例有效患者均发生细胞因子释放综合征(CRS),其中1~2级13例,3~4级10例;而疾病稳定+疾病进展(SD+PD)组9例患者CRS均为1~2级(P=0.030)。③共15例(46.9%)患者发生肿瘤局部反应,其中CR 9例、PR 5例、SD 1例,肿瘤局部反应包括:浅表肿物直径增大且伴红肿热痛;深部肿物表现为腹痛、腹胀、憋气以及肿瘤局部疼痛、烧灼,瘤体增大或伴局部水肿;肿瘤局部出现渗出性病变,可见于腹腔、胸膜腔等。④有效组CD19 CAR-T细胞峰值高于SD+PD组[16.8%(5.3%~48.2%)对2.9%(1.5%~5.7%),z=−4.297,P<0.001],有效组中出现肿瘤局部反应患者CD19 CAR-T细胞峰值高于未出现肿瘤局部反应患者[22.2%(10.5%~48.2%)对12.6%(5.3%~21.6%),z=−3.213,P=0.001],多发肿块组CD19 CAR-T细胞峰值高于单发肿块组[35.8%(1.5%~48.2%)对16.8%(10.5%~18.5%),z=−2.023,P=0.040]。⑤肿瘤局部反应出现和瘤体缩小时间,均较全身不良反应时间延迟。⑥有效患者中出现肿瘤局部反应者OS率高于未出现肿瘤局部反应者,但差异无统计学意义(75.0%对34.6%,P=0.169)。 结论 病灶>7.5 cm的R/R NHL患者CD19 CAR-T细胞治疗,近一半出现肿瘤局部反应,发生时间迟于全身不良反应开始的时间。临床试验注册:中国临床试验注册中心(ChiCTR1800018059)
Collapse
Affiliation(s)
- Q Li
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - H B Deng
- The First Central Clinical College of Tianjin Medical University, Tianjin 300070, China
| | - M J Liu
- The First Central Clinical College of Tianjin Medical University, Tianjin 300070, China
| | - C C Lyu
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - H B Zhu
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - J Wang
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Y L Jiang
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Y D Pu
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Y Y Jiang
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - W Li
- Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, the Sino-US Center for Lymphoma and Leukemia Research, Tianjin 300060, China
| | - Q Deng
- Department of Hematology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| |
Collapse
|
17
|
Shi J, Wu Z, Deng Q, Liu L, Zhang X, Wu X, Wang Y. Synthesis of hydrophobically associating polymer: temperature resistance and salt tolerance properties. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03713-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
18
|
Liu MJ, Mu J, Yuan T, Cui R, Meng JX, Jiang YY, Li YM, Deng Q. [In vitro studies on the transfer of CAR into leukemia cells due to their residue in the autologous CAR-T cell preparation system for acute B-cell acute lymphoblastic leukemia]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:140-145. [PMID: 33858045 PMCID: PMC8071665 DOI: 10.3760/cma.j.issn.0253-2727.2021.02.009] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the characteristics and cytotoxicity in vitro of the residual leukemia cells in the culture system that caused the accidental transfer of CD19 chimeric antigen receptor (CAR) into leukemia cells during the preparation of autologous CD19 CAR-T cells of relapsed/refractory B-cell acute lymphoblastic leukemia. Methods: ①Peripheral blood mononuclear cells (PBMC) of 30 patients with relapsed/refractory B-cell acute lymphoblastic anemia (R/R B-ALL) who accepted CD19 CAR-T cell therapy and six healthy volunteers were collected. ②The residual leukemia cells were analyzed by flow cytometry in the system after the PBMCs of R/R B-ALL patients were sorted by CD3 magnetic beads. ③ CD3(+) T cells from patients and healthy volunteers were transfected with CD19 CAR and CD22 CAR lentivirus to prepare CD19 CAR-T and CD22 CAR-T cells. ④The Nalm-6 cell line was resuscitated and the Nalm-6 cells with CD19 CAR lentivirus were transfected to prepare CD19 CAR-Nalm-6 cells. The patient's primary ALL cells were transfected with CD19 CAR lentivirus at the same time. ⑤The transfection rates were analyzed by flow cytometer, the cell proliferation was analyzed by the CCK-8 method, and the cell-killing activities were detected by the lactate dehydrogenase method. Results: ① Among the 30 R/R B-ALL patients who received CD19 CAR-T cell therapy, two patients had 2.04% and 3.32% residual leukemia cells in CD3(+) T cells. After 4 days in culture, the residual leukemia cells disappeared and could not be detected by a flow cytometer with prolonged cultivation in vitro. ② The proliferation of CD19 CAR-Nalm-6 cells was higher than that of the Nalm-6 cells. ③ The killing activity of the CD19 CAR-T cells on Nalm-6 cells was higher than that of the CD19 CAR-Nalm6 cells at a target ratio of 1∶1 on 24, 48, 72 h, respectively. The cytotoxicity of CD22 CAR-T cells on CD19 CAR-Nalm-6 cells was significantly higher than that of CD19 CAR-T cells. ④ The cytotoxicity of CD22 CAR-T alone on CD19 CAR-Nalm-6 cells was higher than that of CD19 CAR-T combined with CD22 CAR-T at the same target ratio. Conclusion: The residual leukemia cells in the culture system in the preparation of CD19 CAR-T cells may lead to the introduction of CD19 CAR into leukemia cells and results in the failure of the CD19 CAR-T cell therapy. Detecting the residual leukemia cells in the culture system via flow cytometry before transfection with CD19 CAR lentivirus is needed. Thus, CD22 CAR-T cell therapy could be used as one of the salvage treatments.
Collapse
Affiliation(s)
- M J Liu
- The First Central Clinical College of Tianjin Medical University, Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - J Mu
- The First Central Clinical College of Tianjin Medical University, Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - T Yuan
- The First Central Clinical College of Tianjin Medical University, Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - R Cui
- The First Central Clinical College of Tianjin Medical University, Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - J X Meng
- The First Central Clinical College of Tianjin Medical University, Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Y Y Jiang
- The First Central Clinical College of Tianjin Medical University, Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Y M Li
- The First Central Clinical College of Tianjin Medical University, Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Q Deng
- The First Central Clinical College of Tianjin Medical University, Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| |
Collapse
|
19
|
Deng Q, Wang CJ, Hao R, Yang QY. Circ_0001982 accelerates the progression of colorectal cancer via sponging microRNA-144. Eur Rev Med Pharmacol Sci 2021; 24:1755-1762. [PMID: 32141543 DOI: 10.26355/eurrev_202002_20352] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to uncover the expression pattern and biological function of circ_0001982 in the progression of colorectal cancer (CRC). PATIENTS AND METHODS Relative expression level of circ_0001982 in 66 paired CRC tissues and adjacent normal tissues was detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). The association between circ_0001982 level and clinical indexes of CRC patients was assessed. The effect of circ_0001982 on cellular behaviors of HT29 and HCT-116 cells was evaluated in vitro. Dual-Luciferase reporter gene assay was conducted to verify the binding relation between circ_0001982 and microRNA-144. Finally, rescue experiments were performed to assess the role of the circ_0001982/microRNA-144 axis in mediating the progression of CRC. RESULTS Circ_0001982 was significantly up-regulated in CRC tissues when compared with adjacent normal ones. CRC patients with a high expression level of circ_0001982 showed a significantly higher rate of distant metastasis and worse survival. Knockdown of circ_0001982 remarkably attenuated the proliferative, migratory, and invasive capacities of HCT-116 cells. However, opposite results were observed after the overexpression of circ_0001982 in HT29 cells. MicroRNA-144 was verified as a target gene of circ_0001982, which could be negatively regulated by circ_0001982. Furthermore, microRNA-144 was capable of reversing the regulatory effect of circ_0001982 on the proliferative, migratory, and invasive capacities of CRC cells. CONCLUSIONS Up-regulated circ_0001982 was closely related to distant metastasis and poor prognosis of CRC. In addition, circ_0001982 attenuated the progression of CRC by negatively regulating microRNA-144.
Collapse
Affiliation(s)
- Q Deng
- Department of Colorectal Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.
| | | | | | | |
Collapse
|
20
|
Zhang R, Mou N, Pu YD, Li Q, Jiang YY, Yuan T, Deng Q. [Overexpression of NKG2D-CD3ζ in NY-ESO-1 TCR-T cells enhanced cytotoxicity to acute myeloid leukemia cells in vitro]. Zhonghua Xue Ye Xue Za Zhi 2021; 41:946-950. [PMID: 33333701 PMCID: PMC7767805 DOI: 10.3760/cma.j.issn.0253-2727.2020.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- R Zhang
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - N Mou
- Shanghai Genbase Biotechnology Co., Ltd. Shanghai 201206, China
| | - Y D Pu
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Q Li
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Y Y Jiang
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - T Yuan
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Q Deng
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| |
Collapse
|
21
|
Shi H, Deng X, Deng Q, Liu Z, Liu N. Probiotic Lactobacilli Improved Growth Performance and Attenuated Salmonella Typhimurium Infection Via Jak/Stat Signaling in Broilers. Braz J Poult Sci 2021. [DOI: 10.1590/1806-9061-2020-1328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- H Shi
- Henan University of Science and Technology, China; University of Georgia, USA
| | - X Deng
- National Engineering Research Center of Biological Feed, China
| | - Q Deng
- Henan University of Science and Technology, China
| | - Z Liu
- Henan University of Science and Technology, China
| | - N Liu
- Henan University of Science and Technology, China; National Engineering Research Center of Biological Feed, China
| |
Collapse
|
22
|
Fang Z, Sun D, Gao J, Guo M, Sun L, Wang Y, Lıu Y, Wang R, Deng Q, Xu D, Gooneratne R. An Acylase from Shewanella Putrefaciens Presents a Vibrio Parahaemolyticus Acylhomoserine Lactone-Degrading Activity and Exhibits Temperature-, Ph- and Metal-Dependences. AAlim 2020. [DOI: 10.1556/066.2020.49.4.2] [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] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Shewanella putrefaciens supernatant was found to increase the virulence factors of Vibrio parahaemolyticus by efficiently degrading its acylhomoserine lactone (AHL). To further reveal the regulation mechanism and its key degrading enzyme, a potential AHL-degrading enzyme acylase (Aac) from S. putrefaciens was cloned, and the influences of temperature, pH, protein modifiers, and metals on Aac were tested. Aac was significantly influenced by temperature and pH, and exhibited the highest AHL-degrading activity at temperatures of 37 °C and pH of 8. Mg2+ and Fe2+ can further increase the AHL-degrading activity. 10 mM EDTA inhibited its activity possibly by chelating the co-factors (metals) required for Aac activity. Tryptophan and arginine were identified as key components for Aac activity that are critical to its AHL-degrading activity. This study provides useful information on Aac and for V. parahaemolyticus control.
Collapse
Affiliation(s)
- Z. Fang
- aCollege of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524048, China
| | - D. Sun
- aCollege of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524048, China
| | - J. Gao
- aCollege of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524048, China
| | - M. Guo
- aCollege of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524048, China
| | - L. Sun
- aCollege of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524048, China
| | - Y. Wang
- aCollege of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524048, China
| | - Y. Lıu
- aCollege of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524048, China
| | - R. Wang
- bCollege of Food Science and Engineering, Lingnan Normal University, Zhanjiang, 524048, China
| | - Q. Deng
- aCollege of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524048, China
| | - D. Xu
- aCollege of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524048, China
| | - R. Gooneratne
- cDepartment of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln, Canterbury, 7647, New Zealand
| |
Collapse
|
23
|
Chen H, Deng Q, Wang W, Tao H, Gao Y. Identification of an autophagy-related gene signature for survival prediction in patients with cervical cancer. J Ovarian Res 2020; 13:131. [PMID: 33160404 PMCID: PMC7648936 DOI: 10.1186/s13048-020-00730-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 10/12/2020] [Indexed: 12/17/2022] Open
Abstract
Cervical cancer is one of the most common female malignancy that occurs worldwide and is reported to cause over 300,000 deaths in 2018. Autophagy controls the survival and death of cancerous cells by regulating the degradation process of cytoplasm and cellular organelle. In the present study, the differentially expressed autophagy-related genes (ARGs) between healthy and cancerous cervical tissues (squamous cell neoplasms) were obtained using data from GTEx and The Cancer Genome Atlas (TCGA) database. The functionalities of the differentially expressed ARGs were analyzed using Gene Ontology (GO) as well as the Kyoto Encyclopedia of Genes and Genomes (KEGG) database. Next, we conducted univariate Cox regression assay and obtained 12 ARGs that were associated with the prognosis of cervical cancer patients. We carried out a multivariate Cox regression analysis and developed six ARG-related prognostic signature for the survival prediction of patients with squamous cell cervical cancer (Risk score = − 0.63*ATG3–0.42*BCL2 + 0.85*CD46–0.38*IFNG+ 0.23*NAMPT+ 0.82*TM9SF1). Following the calculation of risk score using the signature, the patients were divided into high and low-risk groups according to the median value. Kaplan-Meier curve demonstrated that patients with a high-risk score tend to have a poor prognosis (P < 0.001). The value for area under the curves corresponding to the receiver operating characteristic (ROC) was 0.740. As observed, the expression of IFNG was negatively associated with lymph node metastasis (P = 0.026), while a high-risk score was significantly associated with increased age (P = 0.008). To further validate the prognostic signature, we carried out a permutation test and confirmed the performance of the risk score. In conclusion, our study developed six ARG-related prognostic signature for patients with squamous cell cervical cancer, which might help in improving the prognostic predictions of such patients.
Collapse
Affiliation(s)
- Hengyu Chen
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,NHC Key Laboratory of Hormones and Development, Tianjin Institute of Endocrinology, Tianjin Medical University Chu Hsien-I Memorial Hospital, Tianjin, 300070, China.,Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou, 570102, China
| | - Qingchun Deng
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou, 570102, China
| | - Wenwen Wang
- Department of Gynecology and Obstetrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Huishan Tao
- Department of Gynecology and Obstetrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Ying Gao
- Department of Gynecology and Obstetrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| |
Collapse
|
24
|
Zhao Y, Zhang B, Qin W, Luo J, Liu H, Deng Q, Lv W, He Y, Wang H. Spatial differentiation of gully clusters based on the regional scale: an example from northeastern China. PeerJ 2020; 8:e9907. [PMID: 33133778 PMCID: PMC7580587 DOI: 10.7717/peerj.9907] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 08/18/2020] [Indexed: 12/02/2022] Open
Abstract
Gully erosion represents a serious environmental threat around the world, but their spatial distribution law are unclear at the regional scale. To quantitatively characterize the spatial distribution model of gullies and determine the regularity of regional differentiation, this paper used spatial analyst and statistics method to study the spatial distribution of gullies in 34 sample areas of northeastern China based on interpretations of high-resolution remote sensing images. The results showed that the kernel density could quantitatively describe the continuous spatial clustering of gullies. Gullies in northeastern China had the characteristics of a spatially unbalanced distribution at the scale of the sample area. The average kernel density of the 34 sample areas (Moran’s I was 0.43, P¡0.01P < 0.01) also indicated clustering distribution at the regional scale. The horizontal clustering characteristics of gullies exhibited an azonal distribution of being low values in the middle plain and high values on the three mountainous areas. The average kernel density in the southeastern part of the study area was highest (maximum value of 2.38). In the vertical direction, gullies were relatively undeveloped in low- and high-altitude areas, while middle-altitude areas were beneficial to the development of gullies. The effect of height differences on gully development was more significant than altitude. As the height difference increased, gullies tended to be more clustered, which can be expressed by a power function. The results of this study will not only help to understand the regional differentiation characteristics of gullies but will also provide a scientific reference for the study of spatial distribution of gullies in future.
Collapse
Affiliation(s)
- Ying Zhao
- Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion on Dry Valleys, China West Normal University, Nanchong, China.,School of Land and Resources, China West Normal University, Nanchong, China
| | - Bin Zhang
- Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion on Dry Valleys, China West Normal University, Nanchong, China.,School of Land and Resources, China West Normal University, Nanchong, China
| | - Wei Qin
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, China.,Research Center on Soil and Water Conservation of the Ministry of Water Resources, Beijing, China
| | - Jun Luo
- Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion on Dry Valleys, China West Normal University, Nanchong, China.,School of Land and Resources, China West Normal University, Nanchong, China
| | - Hui Liu
- Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion on Dry Valleys, China West Normal University, Nanchong, China.,School of Land and Resources, China West Normal University, Nanchong, China
| | - Qingchun Deng
- Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion on Dry Valleys, China West Normal University, Nanchong, China.,School of Land and Resources, China West Normal University, Nanchong, China
| | - Wei Lv
- Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion on Dry Valleys, China West Normal University, Nanchong, China.,School of Land and Resources, China West Normal University, Nanchong, China
| | - Yuli He
- Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion on Dry Valleys, China West Normal University, Nanchong, China.,School of Land and Resources, China West Normal University, Nanchong, China
| | - Houling Wang
- Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion on Dry Valleys, China West Normal University, Nanchong, China.,School of Land and Resources, China West Normal University, Nanchong, China
| |
Collapse
|
25
|
Li X, Deng Q, Ma S, Zhang L, Kuang Y. Analysis Of Key Factors For Radiomic Feature Extraction Stability And Robustness On 4DCT Image. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.246] [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]
|
26
|
Li ZQ, Qu M, Wan HX, Wang H, Deng Q, Zhang Y. FOXK1 promotes malignant progression of breast cancer by activating PI3K/AKT/mTOR signaling pathway. Eur Rev Med Pharmacol Sci 2020; 23:9978-9987. [PMID: 31799667 DOI: 10.26355/eurrev_201911_19564] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the expression characteristics of forkhead box K1 (FOXK1) in breast cancer (BCa). Meanwhile, its relationship with clinicopathology and prognosis of patients with BCa was also explored. PATIENTS AND METHODS The expression level of FOXK1 in 65 paired BCa tissues and para-cancerous tissues was detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). The relationship between FOXK1 expression and BCa pathological parameters as well as the prognosis of patients was analyzed. Meanwhile, the expression of FOXK1 in BCa cells was detected by qRT-PCR. Subsequently, FOXK1 knockdown and overexpression models were constructed by lentivirus transfection in BCa cell lines (including MCF-7 and SKBR3). The effect of FOXK1 on the biological functions of BCa cells was analyzed using Cell Counting Kit-8 (CCK-8), cell cloning assay and flow cytometry, respectively. Finally, whether the role of FOXK1 was achieved via the PI3K/AKT/mTOR signaling pathway was explored. RESULTS The qRT-PCR results showed that FOXK1 expression in BCa tissues was significantly higher than that of adjacent tissues. Compared with patients with low expression of FOXK1, the pathological grading was markedly higher in those with high expression. Meanwhile, the overall survival rate was remarkably lower in patients with high expression. In addition, compared with the negative control group, the proliferation ability of cells in FOXK1 knockdown group was significantly decreased, while cell apoptosis was markedly up-regulated. Besides, Western blot results revealed that silencing FOXK1 could reduce the levels of key proteins in the PI3K/AKT/mTOR signaling pathway, thereby promoting the malignant progression of BCa. Finally, PI3Kα/mTOR-IN-1, which was the inhibitor of the PI3K/AKT/mTOR signaling pathway, significantly reversed the proliferative capacity of cells in FOXK1 overexpression group, as well as enhanced anti-apoptotic ability. CONCLUSIONS FOXK1 expression was remarkably increased both in BCa tissues and cells. Meanwhile, it was markedly associated with pathological stage and poor prognosis of patients. Besides, FOXK1 might promote the malignant progression of BCa by inhibiting the PI3K/AKT/mTOR signaling pathway.
Collapse
Affiliation(s)
- Z-Q Li
- Department of Oncology, Sanya People's Hospital, Sanya, China.
| | | | | | | | | | | |
Collapse
|
27
|
Pan Y, Jia LP, Liu Y, Han Y, Li Q, Zou Q, Zhang Z, Huang J, Deng Q. A novel signature of two long non-coding RNAs in BRCA mutant ovarian cancer to predict prognosis and efficiency of chemotherapy. J Ovarian Res 2020; 13:112. [PMID: 32950050 PMCID: PMC7502206 DOI: 10.1186/s13048-020-00712-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 09/04/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND In this study we aimed to identify a prognostic signature in BRCA1/2 mutations to predict disease progression and the efficiency of chemotherapy ovarian cancer (OV), the second most common cause of death from gynecologic cancer in women worldwide. METHODS Univariate Cox proportional-hazards and multivariate Cox regression analyses were used to identifying prognostic factors from data obtained from The Cancer Genome Atlas (TCGA) database. The area under the curve of the receiver operating characteristic curve was assessed, and the sensitivity and specificity of the prediction model were determined. RESULTS A signature consisting of two long noncoding RNAs(lncRNAs), Z98885.2 and AC011601.1, was selected as the basis for classifying patients into high and low-risk groups (median survival: 7.2 years vs. 2.3 years). The three-year overall survival (OS) rates for the high- and low-risk group were approximately 38 and 100%, respectively. Chemotherapy treatment survival rates indicated that the high-risk group had significantly lower OS rates with adjuvant chemotherapy than the low-risk group. The one-, three-, and five-year OS were 100, 40, and 15% respectively in the high-risk group. The survival rate of the high-risk group declined rapidly after 2 years of OV chemotherapy treatment. Multivariate Cox regression associated with other traditional clinical factors showed that the 2-lncRNA model could be used as an independent OV prognostic factor. Analyses of data from the Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) indicated that these signatures are pivotal to cancer development. CONCLUSION In conclusion, Z98885.2 and AC011601.1 comprise a novel prognostic signature for OV patients with BRCA1/2 mutations, and can be used to predict prognosis and the efficiency of chemotherapy.
Collapse
Affiliation(s)
- Yinglian Pan
- Department of Medical Oncology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, Hainan, China
| | - Li Ping Jia
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Yuzhu Liu
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Yiyu Han
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Qian Li
- Department of Clinical Laboratory, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan, Wuhan, China
| | - Qin Zou
- Department of Clinical Laboratory, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan, Wuhan, China
| | - Zhongpei Zhang
- Department of Clinical Laboratory, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan, Wuhan, China
| | - Jin Huang
- Department of Clinical Laboratory, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan, Wuhan, China.
| | - Qingchun Deng
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou, China.
| |
Collapse
|
28
|
Jiang YL, Li Q, Pu YD, Jiang YY, Yuan T, Deng Q, Li YM, Han MZ, Zhai WH. [Maintenance therapy following CD19 CAR-T treatment for relapsed B-cell acute lymphoblastic leukemia after allogeneic hematopoietic stem cell transplantation]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:495-501. [PMID: 32654464 PMCID: PMC7378295 DOI: 10.3760/cma.j.issn.0253-2727.2020.06.011] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Objective: This study aimed to evaluate the maintenance therapy following an anti-CD19-CAR T-cell therapy for a B-cell acute lymphoblastic leukemia (ALL) patient who relapsed after allogeneic hematopoietic cell transplantation (allo-HSCT) and investigate the effect of donor stem cells and donor T lymphocyte infusion on the amplification of CD19 CAR-T cells. Methods: One refractory B-ALL patient relapsed after murine CD19 CAR-T cell therapy followed by a sibling allo-HSCT. He underwent a humanized CD19 CAR-T cell therapy followed by donor stem cell and donor T lymphocytes infusions as maintenance therapy in our hospital. The level of cytokines, the proportion of CD19 CAR-T cell, the level of CAR19 DNA expression in the peripheral blood, and the proportion of leukemia cells and donor chimerism in the bone marrow were detected. Correspondingly, T lymphocytes from the C57 spleen were separated to modify the CD19 CAR lentivirus and refused into C57 mice, and after 14 days, the B lymphocytes from C57 mice were separated and refused into the same C57 mice. The CD19 CAR T cells, B cells, and CD19 CAR gene counts in the peripheral blood were evaluated at different time points. Results: ①The patient achieved a complete response (CR) 14 days after a humanized CD19 CAR-T therapy with grade 1 cytokine release syndrome (CRS) and restored a donor chimerism to 99.76%. ② Following the remission from humanized CD19 CAR-T therapy, the patient received a maintenance therapy of donor stem cell infusion. Mild graft-versus-host disease (GVHD) manifested 24 days after infusion with an increased proportion of CD19 CAR-T cells and an increased level of CAR19 DNA expression in the peripheral blood. It fell with the remission of GVHD. The patient maintained CR and 99.69% donor chimerism during this period. ③ Throughout the subsequent donor T lymphocytes maintenance therapy, mild GVHD surfaced12 days after infusion without an increased proportion of CD19 CAR-T cells and an increased level of CAR19 DNA expression in the peripheral blood. The patient maintained CR and 99.87% donor chimerism during this period. ④ In vivo experiments on C57 mice confirmed that the proportion of CD19 CAR-T cells and the level of CAR19 DNA expression were upregulated in mice following CAR-T cell infusion, accompanied by depletion of CD19(+) B lymphocyte. After infusion of CD19(+) B lymphocyte cells, an increased proportion of CD19 CAR-T cells and an increased level of CAR19 DNA expression in the peripheral blood were observed again. Conclusions: The infusion of donor stem cells and donor T lymphocytes could be used as a maintenance treatment after CD19 CAR-T cell therapy for B-ALL patients who relapsed after allo-HSCT. Infusion of donor stem cells induced an increased proportion of CD19 CAR-T cells and an increased level of CAR19 DNA expression with the occurrence of GVHD. It might lead to further elimination of minimal residual disease.
Collapse
Affiliation(s)
- Y L Jiang
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Q Li
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Y D Pu
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Y Y Jiang
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - T Yuan
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Q Deng
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Y M Li
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | - M Z Han
- Institute of Hematology and Blood Diseases Hospital, CAMS & PUMC, National Clinical Research Center for Blood Diseases, Tianjin 300020, China
| | - W H Zhai
- Institute of Hematology and Blood Diseases Hospital, CAMS & PUMC, National Clinical Research Center for Blood Diseases, Tianjin 300020, China
| |
Collapse
|
29
|
Mo Q, Huang S, Ma J, Zhang J, Su R, Deng Q. Association between SLCO1B1 polymorphism distribution frequency and blood lipid level in Chinese adults. Br J Biomed Sci 2020; 78:23-27. [PMID: 32594851 DOI: 10.1080/09674845.2020.1785692] [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: 10/23/2022]
Abstract
BACKGROUND The variation of serum lipid levels can be part-related to certain genes. One such gene, SLCO1B1, encodes a transporter that may have a role in lipid metabolism. We hypothesised that differences in certain SLCO1B1 genotypes are related to levels of serum lipids. MATERIALS AND METHODS We recruited 636 subjects who were genotyped for SLCO1B1 variants *1a, *1b, *5 and *15. Routine liver function tests, renal function tests and routine lipid indices were measured by standard techniques. RESULTS The most frequent genotypes were *1b/*1b (29.3%), *1b/*15 (27.5%), *1a/*1b (21.1%), *1a/*15 and *1b/*5 (10.2%) and *1a/*1a (8.5%). There were significant differences in levels of triglycerides and HDL in the four SLCO1B1 genotypes *1a/*1a, *1b/*1b, *1a/*1b and *1b/*15 (all p < 0.05). CONCLUSION The genotypes *1a/*1a and *1a/*1b indicate a high risk of cardiovascular disease, while the *1b/*1b group may have a relatively low risk. SLCO1B1 may be involved in the metabolism of triglycerides and HDL. We have provided a tool for identifying potentially high-risk groups that could be helpful for early diagnosis and prevention, individualized drug therapy and even gene therapy.
Collapse
Affiliation(s)
- Q Mo
- Department of Laboratory Medicine Center, Foshan Hospital of Traditional Chinese Medicine , Foshan, Guangdong, People's Republic of China
| | - S Huang
- Department of Laboratory Medicine Center, Foshan Hospital of Traditional Chinese Medicine , Foshan, Guangdong, People's Republic of China
| | - J Ma
- Department of Laboratory Medicine Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Science , Guangzhou, Guangdong, People's Republic of China
| | - J Zhang
- Department of Laboratory Medicine Center, Foshan Hospital of Traditional Chinese Medicine , Foshan, Guangdong, People's Republic of China
| | - R Su
- Department of Laboratory Medicine Center, Foshan Hospital of Traditional Chinese Medicine , Foshan, Guangdong, People's Republic of China
| | - Q Deng
- Department of Laboratory Medicine Center, Foshan Hospital of Traditional Chinese Medicine , Foshan, Guangdong, People's Republic of China
| |
Collapse
|
30
|
Shi Y, Tu LX, Deng Q, Zhang YP, Hu YH, Liu DW. [Effects and mechanism of rat epidermal stem cells treated with exogenous vascular endothelial growth factor on healing of deep partial-thickness burn wounds in rats]. Zhonghua Shao Shang Za Zhi 2020; 36:195-203. [PMID: 32241045 DOI: 10.3760/cma.j.cn501120-20191125-00441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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 effects and mechanism of rat epidermal stem cells (ESCs) that were treated with exogenous vascular endothelial growth factor (VEGF) on the healing of deep partial-thickness burn wounds in rats. Methods: ESCs were isolated and cultured from the trunk skin of a 3-month-old female Sprague-Dawley (SD) rat. The third passage of cultured cells in the logarithmic growth phase was used in experiments (1)-(3). (1) The cells were routinely cultured in keratinocytes-specified serum-free medium (K-SFM) (the same routine culture condition below). The morphology of cells cultured for 3 and 5 days was observed under the inverted optical microscope. (2) After 24 hours in routine culture, the expression of cell surface markers CD44, CD45, CD11b, and CD11c was detected by flow cytometer, with triplicate samples. (3) Four batches of cells were collected, and each batch was divided into VEGF group or blank control group according to the random number table. The cells in blank control group were routinely cultured, while the cells in VEGF group were cultured in K-SFM containing VEGF in the final mass concentration of 10 ng/mL. The protein expressions of cytokeratin 19 (CK19) and CK10 in cells cultured for 10 days were detected by Western blotting. The Nanog mRNA expression in cells cultured for 0 (immediately), 2, 4, 6, 8, and 10 day (s) was detected by real-time fluorescent quantitative reverse transcription polymerase chain reaction. The absorbance value was detected with cell counting kit-8 in cells cultured for 2, 4, 6, 8, and 10 days. The clone number of more than 50 cells was observed and counted under the optical microscope in cells cultured for 10 days, and the cell colony formation rate was calculated. Three samples at each time point was analysed. (4) Thirty-six 3-month-old SD rats (either male or female) were used for the study, and two deep partial-thickness burn wounds (10 mm in diameter) were created in each rat by pressing a 100 ℃ electric iron plate on symmetric dorsal side. According to the random number table, the injured rats were divided into VEGF+ ESCs group, ESCs alone group, and blank control group, with 12 rats and 24 wounds in each group. From 0 (immediately) to 2 day (s) after injury, 20 μL phosphate buffer solution (PBS) was injected into each wound in the three groups in one time, once a day, with the solution in VEGF+ ESCs group containing 0.8×10(6) cells/mL of ESCs treated by 10 ng/mL VEGF for 10 days, the solution in ESCs alone group containing 0.8×10(6) cells/mL of ESCs without any treatment, and the solution in blank control group being PBS only. On post first injection day (PFID) 0 (immediately), 3, 7, and 14, three rats from each group were taken respectively according to the random number table for wound healing assessment, and the wound healing rates on PFID 3, 7, and 14 were calculated. The mice at each time point were sacrificed with wound tissue harvested for histology, and the skin structure was observed by hematoxylin-eosin staining. Data were statistically analyzed with independent sample t test, analysis of variance for factorial design, least significant difference test, and Bonferroni correction. Results: (1) By day 3 in culture, cells distributed in slowly-growing clusters. By day 5, the clusters were large and round, in which the cells mainly with large and round nuclei and little cytoplasm were observed. The above results were consistent with the morphological characteristics of ESCs. (2) The positive expression rate of CD44 was (94.3±1.2) %, and the expressions of CD45, CD11b, and CD11c were negative. The cells were confirmed as ESCs. (3) Compared with those of blank control group, the protein expression of CK19 in the cells of VEGF group was significantly increased after 10 days in culture (t=3.756, P<0.05), while the protein expression of CK10 was significantly decreased (t=3.149, P<0.05). Compared with those of blank control group, the Nanog mRNA expression in the cells cultured for 0 and 2 day (s) and absorbance values of the cells cultured for 2 and 4 day (s) were not significantly changed in VEGF group (t=0.58, 0.77, 0.53, 3.02, P>0.05), while the Nanog mRNA expression in the cells cultured for 4, 6, 8, and 10 days and absorbance values of the cells cultured for 6, 8, and 10 days were significantly increased in VEGF group (t=6.34, 5.00, 5.58, 4.61, 5.65, 10.78, 15.51, P<0.01). After 10 days in culture, the cell colony-forming rate in VEGF group was (56.4±1.3) %, significantly higher than (31.5±1.3) % of blank control group (t=13.96, P<0.01). (4) The burn wounds of rats in the three groups were confined to the superficial dermis of the skin on PFID 0. On PFID 3, normal skin tissue at wound margins slightly contracted in the rats of VEGF+ ESCs group, which was earlier than that in the other two groups. On PFID 7, the newly generated epidermis covered most parts of the rat wounds in VEGF+ ESCs group, and some of the epithelium crawled around the rat wounds in ESCs alone group, but no obvious epithelialization was observed in the rat wounds in blank control group. On PFID 14, the rat wounds in VEGF+ ESCs group were basically healed, while some parts of the rat wounds were unhealed in ESCs alone group, and most parts of the rat wounds were unhealed in blank control group. On PFID 3, the wound healing rates of rats in the three groups were similar (P>0.05). On PFID 7 and 14, the wound healing rates of rats in ESCs alone group, respectively (26.0±2.0) % and (64.4±4.7) %, were obviously higher than (12.4±1.1) % and (29.1±3.3) % of blank control group (P<0.01), all of which were obviously lower than (41.0±2.4) % and (91.3±3.5) % of VEGF+ ESCs group (P<0.01). On PFID 3, infiltration of a large number of inflammatory cells were observed in the rat wounds in VEGF+ ESCs group, which was earlier than those in the other two groups. On PFID 7, a large number of endothelial cells were observed in the rat wounds in VEGF+ ESCs group, while proliferation of a few endothelial cells were observed in the rat wounds in ESCs alone group, and a large number of inflammatory cells infiltrated the rat wounds in blank control group. On PFID 14, the newly generated epidermal cells covered nearly all the rat wounds in VEGF+ ESCs group and most parts of the rat wounds in ESCs alone group, while a large number of endothelial cells were observed and the newly generated epidermal cells covered some parts of the rat wounds in blank control group. Conclusions: ESCs of rats treated with exogenous VEGF can promote the healing of deep partial-thickness burn wounds in rats, which may be related to VEGF's roles in promoting the proliferation of ESCs and reducing its differentiation level, so as to maintain the potency of stem cells.
Collapse
Affiliation(s)
- Y Shi
- Department of Plastic and Aesthetic Surgery, Maternal and Child Health Hospital Affiliated to Nanchang University, Jiangxi Maternal and Child Health Hospital, Nanchang 330006, China
| | - L X Tu
- Department of Burns, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Q Deng
- Department of Burns, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Y P Zhang
- Department of Burns, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Y H Hu
- Clinical Skills Center, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - D W Liu
- Department of Burns, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| |
Collapse
|
31
|
Fu F, Deng Q, Li R, Wang D, Yu QX, Yang X, Lei TY, Han J, Pan M, Zhen L, Li J, Li FT, Zhang YL, Li DZ, Liao C. AXIN2 gene silencing reduces apoptosis through regulating mitochondria-associated apoptosis signaling pathway and enhances proliferation of ESCs by modulating Wnt/β-catenin signaling pathway. Eur Rev Med Pharmacol Sci 2020; 24:418-427. [PMID: 31957856 DOI: 10.26355/eurrev_202001_19940] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Embryonic stem cells (ESCs) mainly originate from totipotent cells in early-stage of mammalian embryo and could proliferate in a manner of un-limitation. This study aimed to investigate roles of Axin2 in proliferation of ESCs and explore the associated mechanisms. MATERIALS AND METHODS Axis inhibition protein 2 (AXIN2) over-expression (LV5-AXIN2) and AXIN2 RNA interfere (LV3-AXIN2-RNAi) vectors were structured and transfected into H9 cells. 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) was used to evaluate cell proliferative activity. Flow cytometry analysis was employed to measure apoptosis of H9 cells. AXIN2, β-catenin, transcription factor 4 (TCF4), c-myc, c-jun and Cyclin D mRNA levels and protein expressions were determined using quantitative real-time PCR (qRT-PCR) and Western blotting assay. RESULTS LV5-AXIN2 and LV3-AXIN2-RNAi were successfully structured with higher transfecting efficacy. AXIN2 gene silencing remarkably increased proliferative activity and AXIN2 treatment significantly induced apoptosis of H9 cells, comparing with blank vector group (p<0.05). AXIN2 gene silencing significantly enhanced B-cell lymphoma-2 (Bcl-2) expression and remarkably inhibited cleaved caspase-3 expression comparing to that in blank vector group (p<0.05). AXIN2-RNAi treatment significantly enhanced and AXIN2 over-expression significantly reduced β-catenin and TCF4 expression, comparing to that in blank vector group (p<0.05). AXIN2 gene silence activated down-stream molecules of Wnt/β-catenin signaling pathway, including c-jun, c-myc, and Cyclin D1 (p<0.05). CONCLUSIONS AXIN2 gene silencing reduced apoptosis by regulating mitochondria-associated apoptosis signaling pathway and enhanced proliferation by modulating molecules in Wnt/β-catenin signaling pathway. Therefore, targeting of aberrant apoptosis and AXIN2 might be a novel clinical strategy to inhibit aging and enhance self-renewal of ESCs.
Collapse
Affiliation(s)
- F Fu
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Deng Q, Shi H, Luo Y, Liu N, Deng X. Dietary Lactic Acid Bacteria Modulate Yolk Components and Cholesterol Metabolism by Hmgr Pathway in Laying Hens. Braz J Poult Sci 2020. [DOI: 10.1590/1806-9061-2020-1261] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Q Deng
- Henan University of Science and Technology, China
| | - H Shi
- University of Georgia, USA
| | - Y Luo
- Henan University of Science and Technology, China
| | - N Liu
- Henan University of Science and Technology, China; National Engineering Research Center of Biological Feed, China
| | - X Deng
- National Engineering Research Center of Biological Feed, China
| |
Collapse
|
33
|
Qi Y, Zhao MF, Deng Q, Geng L. [Mucormycosis in patients with hematological diseases: seven cases reports and literature review]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:943-947. [PMID: 31856445 PMCID: PMC7342367 DOI: 10.3760/cma.j.issn.0253-2727.2019.11.011] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
目的 探讨血液病合并毛霉菌病患者的临床特征、诊治与转归,提高对该病的认识。 方法 回顾性分析2012年9月至2018年9月7例血液病合并毛霉菌病患者的临床资料,分析其临床特征、治疗过程和转归。 结果 7例血液病合并毛霉菌病患者中,男4例,女3例,中位年龄36(19~79)岁。基础疾病:急性髓系白血病2例,急性B淋巴细胞白血病、外周T细胞淋巴瘤、慢性髓性白血病急髓变、骨髓增殖性肿瘤及重型再生障碍性贫血(移植后)各1例。毛霉菌病临床类型:4例为肺型,1例为鼻眶脑型,1例为皮肤型,1例为播散型。7例患者均通过活检组织病理确诊。治疗药物为两性霉素B、两性霉素B脂质体及泊沙康唑。手术治疗4例,其中3例术中彻底清除病变组织,1例仅行局限性清除。治愈2例,好转1例,死亡4例。 结论 血液病合并毛霉菌病患者临床表现及影像学表现多样,死亡率高,确诊主要依赖于组织病理学。早期诊断、控制基础疾病、改善免疫抑制状态、尽早行有效的抗真菌药物治疗及彻底的手术清创治疗是提高血液病合并毛霉菌病患者生存率的关键。
Collapse
Affiliation(s)
- Y Qi
- Department of Hematology, Tianjin First Central Hospital, The First Central Clinical College of Tianjin Medical University 300192, China
| | | | | | | |
Collapse
|
34
|
Li Y, Vgontzas A, Fernandez- Mendoza J, Basta M, Puzino K, Bixle E, Fang J, Deng Q, Zhang Y, Chen B. Increased high-frequency EEG activity during nerm sleep mediates the association between subjective daytime sleepiness and sustained attention in sleep apnea patients. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.632] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
35
|
Pu YD, Wang J, Deng Q, Zhu HB, Jiang YY, Meng JX, Li YM. [PD-1 expression, mRNA level and cytotoxicity changes in CD19CAR-T cells]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:759-763. [PMID: 31648479 PMCID: PMC7342444 DOI: 10.3760/cma.j.issn.0253-2727.2019.09.010] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
目的 探讨CD19 CAR-T细胞培养过程中其PD-1蛋白、mRNA水平及细胞杀伤活性变化。 方法 收集6例外周血PD-1高表达恶性淋巴瘤患者、6例健康志愿者的外周血T细胞,作为CAR-T培养的T细胞来源。流式细胞术检测PD-1蛋白表达、PCR法检测PD-1 mRNA水平,CCK-8法检测细胞增殖,LDH法检测细胞杀伤活性。 结果 ①PD-1高表达患者T细胞来源CD19 CAR-T细胞,与志愿者T细胞来源者相比,转染率无差异(P>0.05);②PD-1高表达T细胞来源CAR-T细胞与PD-1抑制剂联合与否,以及健康志愿者CAR-T之间,细胞增殖差异无统计学意义(P>0.05);③PD-1高表达T细胞与CAR-T细胞对淋巴瘤细胞株杀伤活性,低于二者联合PD-1抑制剂及志愿者CAR-T细胞(P<0.001),而PD-1高表达T细胞来源CAR-T细胞联合PD-1抑制剂与健康志愿者CAR-T细胞间差异无统计学意义(P>0.05);④各组细胞培养过程中PD-1表达均下降,差异无统计学意义(P>0.05),但各组细胞培养过程中,PD-1 mRNA的变化差异无统计学意义(P>0.05);⑤PD-1高表达T细胞来源CAR-T收获后,与PD-1抑制剂共培养与否,其PD-1表达差异无统计学意义(P>0.05),但CAR-T与淋巴瘤细胞株接触后,其PD-1表达随培养时间延长而增高,加入PD-1抑制剂可拮抗该作用;各组间PD-1 mRNA的变化差异无统计学意义(P>0.05)。 结论 PD-1高表达T细胞来源CAR-T细胞与肿瘤细胞接触后,其PD-1表达随培养时间延长而增高;而包括PD-1抑制剂在内,不能改变其PD-1 mRNA的表达。
Collapse
Affiliation(s)
- Y D Pu
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | | | | | | | | | | | | |
Collapse
|
36
|
Fu Y, Deng Q, Xie Z, Sun J, Song D, Gao Y, Huang D. Coronal root canal morphology of permanent two‐rooted mandibular first molars with novel 3D measurements. Int Endod J 2019; 53:167-175. [PMID: 31519062 DOI: 10.1111/iej.13220] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 09/09/2019] [Indexed: 02/05/2023]
Affiliation(s)
- Y. Fu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics West China Hospital of Stomatology Sichuan University Chengdu Sichuan Province China
| | - Q. Deng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics West China Hospital of Stomatology Sichuan University Chengdu Sichuan Province China
| | - Z. Xie
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics West China Hospital of Stomatology Sichuan University Chengdu Sichuan Province China
| | - J. Sun
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics West China Hospital of Stomatology Sichuan University Chengdu Sichuan Province China
| | - D. Song
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics West China Hospital of Stomatology Sichuan University Chengdu Sichuan Province China
| | - Y. Gao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics West China Hospital of Stomatology Sichuan University Chengdu Sichuan Province China
| | - D. Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics West China Hospital of Stomatology Sichuan University Chengdu Sichuan Province China
| |
Collapse
|
37
|
Deng Q, Kang J, Wang H, Yang J, Yan H, Wang Z. P2.01-35 Acquired MET-Aberrance Is a Mechanism of Resistance to ALK Inhibitors in ALK-Positive Advanced Non-Small-Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1379] [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: 11/26/2022]
|
38
|
He D, Yang H, Deng Q, Xie Z, Xiao D. DNA damage repair deficiency is associated with early resistance to crizotinib: Whole-genome analysis in non-small cell lung cancer patients with ALK-fusion. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.107] [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: 11/12/2022] Open
|
39
|
Wang H, Li W, Deng Q, Kang J, Chen H, Wang Z, Zhou Q, Xu C, Zhang X, Su J, Yan H, Wu Y, Yang J. P1.01-85 Treatment for Advanced NSCLC with EGFR Mutations and De Novo MET Amplification/Overexpression. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.800] [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: 10/25/2022]
|
40
|
He D, Yang H, Deng Q, Wang F. P2.14-07 Efficacy of Single Bevacizumab Intrapleural or Intrapericardial Injection in the Treatment of Lung Cancer-Mediated Malignant Effusion. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1792] [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]
|
41
|
Kang J, Chen H, Wang B, Wang Z, Zhang X, Li X, Deng Q, Wu Y, Yang J. P1.01-82 The Different Frequencies and Genetic Profiles of Histologic Transformation After Different EGFR-TKIs in EGFR-Mutant Adenocarcinomas. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
42
|
Wang J, Deng Q, Mu J, Jiang YY, Meng JX, Li YM. [The evaluation of modified cell infusion method to reduce febrile non-hemolytic transfusion reaction in CD(19) chimeric antigen receptor T cell threapy]. Zhonghua Nei Ke Za Zhi 2019; 58:668-672. [PMID: 31461818 DOI: 10.3760/cma.j.issn.0578-1426.2019.09.007] [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 retrospectively analyze the efficacy and safety of modified cell infusion method in reducing the incidence of febrile non-hemolytic transfusion reaction (FNHTR). Methods: A total of 69 patients were enrolled in the clinical trial of CD(19) chimeric antigen receptor T (CAR-T) cell treatment from February 2017 to October 2018. Study group received the modified cell infusion method, that 1×10(6) CAR-T cells were re-suspended in 2 mg human serum albumin with total volume of 20 ml and injected intravenously. The control group was intravenously administrated with CAR-T cell in 100 ml normal saline. The incidence of FNHTR, cytokine releasing syndrome (CRS) grade, cytokine level and efficacy were compared. Results: (1)The incidence of FNHTR in the study group was 21.1%, significantly lower than that in the control group (71%)(P=0.000). (2)There was no statistical difference in cell proliferation between the study group and the control group on day 4, 7, 14 and 21 after CAR-T cell infusion (P=10.223, 3.254, 5.551, 7.605). (3)There was no statistical difference in CRS grading between the study group and the control group (P=0.767). There was no statistical difference in the levels of interleukin 2 receptor (IL-2R), IL-6, tumor necrosis factor (TNF)-α between the two groups. (4)The C-reaction protein (CRP) level of the study group was lower than that of the control group on day 4 and 7 (P=0.026, 0.007). (5)There was no statistical difference of response rates in acute lymphocytic leukemia (ALL) and non-Hodgkin lymphoma (NHL) patients between the two groups (P(ALL)=0.842; P(NHL)=0.866). Conclusion: The modified cell infusion method in CD(19) CAR-T cell treatment reduces the incidence of treatment-related FNHTR. It does not affect the proliferation of CAR-T cells in vivo, the grading of CRS and the response rates.
Collapse
Affiliation(s)
- J Wang
- Department of Hematology, Tianjin First Central Hospital, Tianjin 300192, China
| | | | | | | | | | | |
Collapse
|
43
|
Pan Y, Jia LP, Liu Y, Han Y, Deng Q. Alteration of tumor associated neutrophils by PIK3CA expression in endometrial carcinoma from TCGA data. J Ovarian Res 2019; 12:81. [PMID: 31472672 PMCID: PMC6717327 DOI: 10.1186/s13048-019-0557-6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 08/20/2019] [Indexed: 12/26/2022] Open
Abstract
Uterine corpus endometrial carcinoma (UCEC) is one of the most common cancer in female worldwide. PIK3CA has been proven to be a strong prognostic biomarker in UCEC. Nevertheless, current studies have not investigated what effects PIK3CA had on tumor associated neutrophils (TANss). Kaplan-Meier methods were used to compute the survival time of TCGA UCEC patients. GO and KEGG enrichment analysis unveiled relevant pathways PIK3CA affected using DEGs between PIK3CA high expression group and PIK3CA low expression group in TCGA UCEC, as well as GSEA. immune infiltration status was calculated using TIMER. We found that PIK3CA influenced a number of pathways including immune related pathways. The fraction of TANs was certainly altered by PIK3CA expression in UCEC. Our findings suggest that PIK3CA expression may play an important role in tumor immune microenvironment and could alter fraction of TANs in UCEC.
Collapse
Affiliation(s)
- Yinglian Pan
- Department of Medical Oncology, Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570102, People's Republic of China
| | - Li Ping Jia
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570102, People's Republic of China
| | - Yuzhu Liu
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570102, People's Republic of China
| | - Yixu Han
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570102, People's Republic of China
| | - Qingchun Deng
- Department of Gynecology, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570102, People's Republic of China.
| |
Collapse
|
44
|
Wang R, Deng Y, Sun L, Wang Y, Fang Z, Sun D, Deng Q, Gooneratne R. Growth and haemolytic activity of pathogenicVibriospecies in egg-fried-rice with different egg ratios. Acta Alimentaria 2019. [DOI: 10.1556/066.2019.48.2.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- R.D. Wang
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088. China
| | - Y.J. Deng
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088. China
| | - L.J. Sun
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088. China
| | - Y.L. Wang
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088. China
| | - Z.J. Fang
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088. China
| | - D.F. Sun
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088. China
| | - Q. Deng
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution 524088. China
| | - R. Gooneratne
- Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, Canterbury. New Zealand
| |
Collapse
|
45
|
Zhang R, Deng Q, Sui SN, Jin X, Zhao MF. [The specific cytotoxicities of chimeric antigen receptor-engineered T cells on different lymphomas]. Zhonghua Xue Ye Xue Za Zhi 2019; 38:842-847. [PMID: 29166735 PMCID: PMC7364971 DOI: 10.3760/cma.j.issn.0253-2727.2017.10.004] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
目的 探讨共刺激分子为4-1BB的二代CD19嵌合抗原受体T细胞(CAR-T细胞)对不同侵袭性淋巴瘤细胞的体内、体外杀伤活性以及CAR-T细胞在体内生存的时间。 方法 采用慢病毒包装并感染T细胞的方法制备CD19 CAR-T细胞,采用CCK-8、ELISA和乳酸脱氢酶细胞毒性检测法检测CD19 CAR-T细胞的增殖能力、炎症因子释放水平和对Raji(套细胞淋巴瘤细胞株)、Pfeiffer(弥漫大B细胞淋巴瘤细胞株)、EHEB(慢性淋巴细胞白血病细胞株)细胞的杀伤活性,采用流式细胞术分析CD19 CAR-T细胞治疗前后荷瘤裸鼠的肿瘤负荷和CAR-T细胞残留水平。 结果 ①与二代CAR-T细胞比较,三代CAR-T细胞的体外(24、48 h)增殖能力(P值均<0.05)、对瘤细胞的杀伤活性(P值均<0.05)较强,差异有统计学意义;而炎症因子的释放水平差异无统计学意义(P值均>0.05)。②效靶比为4∶1且共培养48 h时,二代CD19 CAR-T细胞对Raji细胞[(72.36±2.98)%]、Pfeiffer细胞[(55.92±4.16)%]、EHEB细胞[(35.53±3.93)%]的杀伤活性从强到弱,差异有统计学意义(P=0.013)。③裸鼠体内试验结果显示二代CAR-T细胞在EHEB荷瘤小鼠体内存活时间长于Raji荷瘤小鼠(P=0.046)。 结论 共刺激分子为4-1BB的二代CD19 CAR-T细胞对惰性淋巴瘤细胞株的杀伤活性稍低于对侵袭性淋巴瘤细胞株,但在惰性淋巴瘤细胞株荷瘤小鼠体内存活时间更长,可能更适合惰性淋巴瘤的治疗。
Collapse
Affiliation(s)
- R Zhang
- Department of Hematology and Oncology, Tianjin First Central Hospital, Tianjin 300192, China
| | | | | | | | | |
Collapse
|
46
|
Ling K, Jiang L, Liang S, Kwong J, Yang L, Li Y, PingYin, Deng Q, Liang Z. Correction to: Nanog interaction with the androgen receptor signaling axis induce ovarian cancer stem cell regulation: studies based on the CRISPR/Cas9 system. J Ovarian Res 2019; 12:11. [PMID: 30700320 PMCID: PMC6352327 DOI: 10.1186/s13048-019-0487-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Kaijian Ling
- Department of Obstetrics & Gynecology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Lupin Jiang
- Department of Obstetrics & Gynecology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Shi Liang
- Bjrigham Young University, ID 272 Rigby Hall, Rexburg, 83460-4500, USA
| | - Joseph Kwong
- Department of Obstetrics & Gynaecology Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Leiyan Yang
- Department of Obstetrics & Gynecology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Yudi Li
- Department of Obstetrics & Gynecology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - PingYin
- Department of Obstetrics & Gynecology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Qingchun Deng
- Department of Obstetrics & Gynecology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China.
| | - Zhiqing Liang
- Department of Obstetrics & Gynecology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China.
| |
Collapse
|
47
|
Hu X, Ke Y, Zhao Y, Lu S, Deng Q, Yu C, Peng F. Synthesis, characterization and solution properties of β-cyclodextrin-functionalized polyacrylamide/montmorillonite nanocomposites. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.10.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
48
|
Lu S, Wang X, Meng Z, Deng Q, Peng F, Yu C, Hu X, Zhao Y, Ke Y, Qi F. The mechanical properties, microstructures and mechanism of carbon nanotube-reinforced oil well cement-based nanocomposites. RSC Adv 2019; 9:26691-26702. [PMID: 35528553 PMCID: PMC9070435 DOI: 10.1039/c9ra04723a] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 08/14/2019] [Indexed: 01/31/2023] Open
Abstract
High performance cement-based nanocomposites were successfully fabricated through the use of oil well cement filled with multiwalled carbon nanotubes (MWCNTs) as reinforcements. The dispersibilities of four dispersing agents for the MWCNTs were investigated and compared. The dispersed morphologies and structural characteristics of the MWCNTs were analyzed via TEM, FTIR and Raman spectroscopy studies. The effects of MWCNT addition on the rheological behavior and fluidity of oil well cement slurry were discussed. The mechanical properties of the cement-based nanocomposites with different MWCNT content values and different curing ages were explored and analyzed. Furthermore, the microstructures of the MWCNT reinforced cementitious nanocomposites were characterized via XRD, SEM, EDS, total porosity and pore size distribution studies. The results demonstrated that the 28 day compressive strength and 28 day flexural strength of the 0.05 wt% MWCNT cementitious nanocomposite increased by 37.50% and 45.79%, respectively, compared with a pure cement matrix. The elastic moduli of a 0.05 wt% MWCNT cementitious sample declined by 19.07% and 35.39% under uniaxial and triaxial stress, respectively. XRD and pore structure analysis indicated that the MWCNTs could accelerate the hydration process, increase the amount of hydration products and optimize the pore size distribution within the matrix. Additionally, crack bridging, pulling out, network filling and a calcium-silicate-hydrate (C–S–H) phase were exhibited by SEM images. Meanwhile, the reinforcing and toughening mechanism of MWCNTs was also discussed; these had a beneficial influence on the mechanical properties. The reinforcing and toughening mechanism of MWCNTs in cementitious nanocomposites under the external load.![]()
Collapse
Affiliation(s)
- Shichao Lu
- Nanochemistry Key Laboratory of China National Petroleum Corporation
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Xiaoyan Wang
- Nanochemistry Key Laboratory of China National Petroleum Corporation
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Zhaorui Meng
- Nanochemistry Key Laboratory of China National Petroleum Corporation
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Qingchun Deng
- Nanochemistry Key Laboratory of China National Petroleum Corporation
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Fangfang Peng
- Nanochemistry Key Laboratory of China National Petroleum Corporation
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Chengcheng Yu
- Nanochemistry Key Laboratory of China National Petroleum Corporation
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Xu Hu
- Nanochemistry Key Laboratory of China National Petroleum Corporation
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Yi Zhao
- Nanochemistry Key Laboratory of China National Petroleum Corporation
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Yangchuan Ke
- Nanochemistry Key Laboratory of China National Petroleum Corporation
- College of Science
- China University of Petroleum
- Beijing
- China
| | | |
Collapse
|
49
|
Peng F, Ke Y, Lu S, Zhao Y, Hu X, Deng Q. Anion amphiphilic random copolymers and their performance as stabilizers for O/W nanoemulsions. RSC Adv 2019; 9:14692-14700. [PMID: 35516327 PMCID: PMC9064215 DOI: 10.1039/c9ra01383k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 04/25/2019] [Indexed: 11/21/2022] Open
Abstract
A series of anionic amphiphilic random copolymers with sodium p-styrene sulfonate and dodecyl methacrylate were synthesized via free radical polymerization and their property in the formation and stabilization of nano-emulsions were investigated.
Collapse
Affiliation(s)
- Fangfang Peng
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Yangchuan Ke
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Shichao Lu
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Yi Zhao
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Xu Hu
- College of Science
- China University of Petroleum
- Beijing
- China
| | - Qingchun Deng
- College of Science
- China University of Petroleum
- Beijing
- China
| |
Collapse
|
50
|
Zhang M, Wang LM, Chen ZH, Zhao ZP, Li YC, Deng Q, Huang ZJ, Zhang X, Li C, Zhou MG, Wang LH. [Multilevel logistic regression analysis on hypercholesterolemia related risk factors among adults in China]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:151-157. [PMID: 29429269 DOI: 10.3760/cma.j.issn.0253-9624.2018.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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 investigate the prevalence of hypercholesterolemia among Chinese adults in different geographic areas, and to analyze the related factors. Methods: China Chronic and Non-Communicable Disease and Risk Factor Surveillance was conducted in 2013, based on 298 counties/districts in 31 provinces of Chinese mainland. The adults aged 18 years old were randomly selected using multi-stage stratified clustering sampling method. Information on chronic disease and risk factors was collected using face-to-face questionnaire interview and physical measurement. Blood samples were collected by local staffs. Serum total cholesterol (TC) was determined using standard method in a central laboratory. After excluding 565 participants missing key variables and 1 558 participants with abnormal TC values, a total of 174 976 participants were included. Weighted prevalence of hypercholesterolemia was calculated. Hypercholesterolemia related individual or geographic determinants were defined using multilevel logistic regression. Results: The prevalence of hypercholesterolemia in Chinese adults age 18 years old and above was 6.9% (95%CI: 6.4%-7.3%), ranged from 3.0% (95%CI: 2.5%-3.4%) in the northwest of China to 14.2% (95%CI: 12.9%-15.5%) in the south (χ(2)=183.42, P<0.001). The prevalence of hypercholesterolemia was higher in 6 provinces including Tianjin, Liaoning, Fujian, Guangdong, Guangxi, and Hainan (≥9.0%), but lower in 7 provinces including Shanxi, Shannxi, Gansu, Qinghai, Ningxia, Xinjiang, and Tibet (<3.9%). There was a 1.27 fold variation in hypercholesterolemia prevalence by provincial level, and 72.5% of the geographical variation in hypercholesterolemia prevalence was account for by area-level determinants. With multilevel logistic analysis, the individual risk factors associated with hypercholesterolemia included aging, higher education level or annual household income per capita, regular drinking, too much red meal intake, inactivity, overweight or obesity. For geographic factors, residents living at south China, counties/districts with higher urbanization rates, higher education level or lower standardized death rates were more likely to have hypercholesterolemia (all P<0.05). Conclusion: The prevalence of hypercholesterolemia was high in Chinese adults, it was different between regions and related with characteristics of population, individual behaviors and geographical regions.
Collapse
Affiliation(s)
- M Zhang
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|