1
|
Li L, Gao YH, Zang L, Xue K, Ke B, Shang L, Tang ZQ, Yu J, Liang YR, He ZR, Zheng HL, Huang H, Xiong JP, He ZY, Li JY, Lu TT, Song QY, Liu SH, Chen YW, Tang Y, Liang H, Qiao Z, Chen L. [Comparison of the efficacy of different surgical strategies in the treatment of patients with initially resectable gastric cancer liver metastases]. Zhonghua Wai Ke Za Zhi 2024; 62:370-378. [PMID: 38548604 DOI: 10.3760/cma.j.cn112139-20240126-00053] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/09/2024]
Abstract
Objective: To examine the impact of varied surgical treatment strategies on the prognosis of patients with initial resectable gastric cancer liver metastases (IR-GCLM). Methods: This is a retrospective cohort study. Employing a retrospective cohort design, the study selected clinicopathological data from the national multi-center retrospective cohort study database, focusing on 282 patients with IR-GCLM who underwent surgical intervention between January 2010 and December 2019. There were 231 males and 51 males, aging (M(IQR)) 61 (14) years (range: 27 to 80 years). These patients were stratified into radical and palliative treatment groups based on treatment decisions. Survival curves were generated using the Kaplan-Meier method and distinctions in survival rates were assessed using the Log-rank test. The Cox risk regression model evaluated HR for various factors, controlling for confounders through multivariate analysis to comprehensively evaluate the influence of surgery on the prognosis of IR-GCLM patients. A restricted cubic spline Cox proportional hazard model assessed and delineated intricate associations between measured variables and prognosis. At the same time, the X-tile served as an auxiliary tool to identify critical thresholds in the survival analysis for IR-GCLM patients. Subgroup analysis was then conducted to identify potential beneficiary populations in different surgical treatments. Results: (1) The radical group comprised 118 patients, all undergoing R0 resection or local physical therapy of primary and metastatic lesions. The palliative group comprised 164 patients, with 52 cases undergoing palliative resections for gastric primary tumors and liver metastases, 56 cases undergoing radical resections for gastric primary tumors only, 45 cases undergoing palliative resections for gastric primary tumors, and 11 cases receiving palliative treatments for liver metastases. A statistically significant distinction was observed between the groups regarding the site and the number of liver metastases (both P<0.05). (2) The median overall survival (OS) of the 282 patients was 22.7 months (95%CI: 17.8 to 27.6 months), with 1-year and 3-year OS rates were 65.4% and 35.6%, respectively. The 1-year OS rates for patients in the radical surgical group and palliative surgical group were 68.3% and 63.1%, while the corresponding 3-year OS rates were 42.2% and 29.9%, respectively. A comparison of OS between the two groups showed no statistically significant difference (P=0.254). Further analysis indicated that patients undergoing palliative gastric cancer resection alone had a significantly worse prognosis compared to other surgical options (HR=1.98, 95%CI: 1.21 to 3.24, P=0.006). (3) The size of the primary gastric tumor significantly influenced the patients' prognosis (HR=2.01, 95%CI: 1.45 to 2.79, P<0.01), with HR showing a progressively increasing trend as tumor size increased. (4) Subgroup analysis indicates that radical treatment may be more effective compared to palliative treatment in the following specific cases: well/moderately differentiated tumors (HR=2.84, 95%CI 1.49 to 5.41, P=0.001), and patients with liver metastases located in the left lobe of the liver (HR=2.06, 95%CI 1.19 to 3.57, P=0.010). Conclusions: In patients with IR-GCLM, radical surgery did not produce a significant improvement in the overall prognosis compared to palliative surgery. However, within specific patient subgroups (well/moderately differentiated tumors, and patients with liver metastases located in the left lobe of the liver), radical treatment can significantly improve prognosis compared to palliative approaches.
Collapse
Affiliation(s)
- L Li
- Graduate School, Chinese People's Liberation Army Medical School, Beijing 100853, China
| | - Y H Gao
- Senior Department of General Surgery, the First Medical Center, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - L Zang
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - K Xue
- Department of Gastrointestinal Surgery, Peking University Cancer Hospital, Beijing 100142, China
| | - B Ke
- Department of Gastric Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjing 300060, China
| | - L Shang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Z Q Tang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - J Yu
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Y R Liang
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z R He
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - H L Zheng
- Department of Gastric Cancer, Union Hospital, Fujian Medical University, Fuzhou, 350001, China
| | - H Huang
- Department of Gastric Cancer, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - J P Xiong
- Department of Pancreatic and Gastric Surgery, Cancer Hospital, Chinese Academy of Medical Scicence, Beijing 100021, China
| | - Z Y He
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - J Y Li
- Senior Department of General Surgery, the First Medical Center, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - T T Lu
- Graduate School, Chinese People's Liberation Army Medical School, Beijing 100853, China
| | - Q Y Song
- Senior Department of General Surgery, the First Medical Center, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - S H Liu
- Senior Department of General Surgery, the First Medical Center, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Y W Chen
- Graduate School, Chinese People's Liberation Army Medical School, Beijing 100853, China
| | - Y Tang
- Senior Department of General Surgery, the First Medical Center, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - H Liang
- Department of Gastric Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjing 300060, China
| | - Z Qiao
- Senior Department of General Surgery, the First Medical Center, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - L Chen
- Department of Gastrointestinal Surgery, Peking University International Hospital, Beijing 100871, China
| |
Collapse
|
2
|
Li LP, Zhang RH, Shang L. [Quality control of perioperative management after radical surgery for locally advanced gastric cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2024; 27:158-162. [PMID: 38413083 DOI: 10.3760/cma.j.cn441530-20240109-00013] [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: 02/29/2024]
Abstract
Gastric cancer is a common malignant tumor in China. Most gastric cancer patients are already in the locally advanced stage when they seek medical treatment. Radical surgery is the main treatment for gastric cancer. The quality control of postoperative perioperative management is of great significance in improving the surgical treatment effect and the quality of life of patients. This article systematically summarizes seven aspects, including diet and nutrition management, antimicrobial drug management, pain management, prophylactic anticoagulation management, airway management, postoperative complication management, and discharge and follow-up management, establishes clear quality standards, and achieves the goals of reducing postoperative complications, standardizing perioperative medication use, reducing hospitalization time and costs, thereby reducing patient burden and improving the economic and social benefits of medical institutions.
Collapse
Affiliation(s)
- L P Li
- Department of General Surgery, the Affiliated Provincial Hospital, Shandong First Medical University, Jinan 250013, China
| | - R H Zhang
- Department of General Surgery, the Affiliated Provincial Hospital, Shandong First Medical University, Jinan 250013, China
| | - L Shang
- Department of General Surgery, the Affiliated Provincial Hospital, Shandong First Medical University, Jinan 250013, China
| |
Collapse
|
3
|
Duan Y, Liu Q, Wang M, Zhu Y, Zhang Q, Duan X, Deng H, Shang L. Insights into temperature-induced phase transition mechanism of CL-20 using terahertz spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2024; 307:123640. [PMID: 37995650 DOI: 10.1016/j.saa.2023.123640] [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: 06/11/2023] [Revised: 10/27/2023] [Accepted: 11/09/2023] [Indexed: 11/25/2023]
Abstract
Understanding the phase transition mechanism of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) is crucial for ensuring its safe applications. In this study, we observed the temperature-induced phase transition of CL-20 using terahertz spectroscopy. Subsequently, quantum chemical calculations were employed to assign the vibrations to experimental absorptions. Finally, the variations of intra- and intermolecular vibrations before and after phase transition were analyzed. The results indicated hydrogen bonds formed by the rotation of 5-nitro promoted hydrogen transfer, resulting in the decrease in thermal stability.
Collapse
Affiliation(s)
- Yongwei Duan
- School of Information Engineering, Southwest University of Science and Technology, Mianyang, China
| | - Quancheng Liu
- School of Information Engineering, Southwest University of Science and Technology, Mianyang, China.
| | - Minchang Wang
- State Key Laboratory of Fluorine&Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, China
| | - Yiju Zhu
- State Key Laboratory of Fluorine&Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, China
| | - Qi Zhang
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, China
| | - Xiaohui Duan
- State Key Laboratory of Environmental-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, China
| | - Hu Deng
- School of Information Engineering, Southwest University of Science and Technology, Mianyang, China; Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, ChengDu, China
| | - Liping Shang
- School of Information Engineering, Southwest University of Science and Technology, Mianyang, China.
| |
Collapse
|
4
|
Hou S, Liu Q, Deng H, He J, Zhao W, Wu Z, Zhang Q, Shang L. Identification and low-frequency vibrational analysis of three free anthraquinones via terahertz spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2023; 293:122439. [PMID: 36773425 DOI: 10.1016/j.saa.2023.122439] [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: 11/07/2022] [Revised: 01/11/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
In this study, terahertz time-domain spectroscopy (THz-TDS) was used to obtain the terahertz absorption spectra of three free anthraquinones (Chrysophanol, Emodin, Physcion) in the frequency range of 0.2-4.3 THz. The results show that terahertz spectroscopy is an effective detecting such compounds. Meanwhile, the theoretical spectrum using density functional theory calculations agrees well with the experimental spectrum. A modal decoupling method was used to identify each low-frequency vibrational mode and determine the average contribution of different atoms and groups. Modal decoupling provides a better understanding of molecules' mixed vibrational modes and enables quantifying the atoms' vibrational contributions. Results show that the substituent group facilitates the transition between the fundamental vibrational modes; subsequently, the substituent group shifts the vibrational centre of gravity of the three molecules and affects the vibrational contribution of hydrogen bonds. Furthermore, insignificant Emodin absorption is related to the nearly symmetrical structure formed by the substituents. The feasibility of terahertz analysis of differential molecular structures has also been confirmed.
Collapse
Affiliation(s)
- Senlin Hou
- School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Quancheng Liu
- School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Hu Deng
- School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China; Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, ChengDu 610299, China
| | - Jun He
- School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Wei Zhao
- School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Zhixiang Wu
- School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Qi Zhang
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, China
| | - Liping Shang
- School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China; Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, ChengDu 610299, China.
| |
Collapse
|
5
|
Wei W, Qi X, Deng H, Shang L, Zhang Y, Liu H. Determination of the coefficient of thermal expansion of ultra-low-expansion glass using an ultrasonic immersion testing method. Appl Opt 2023; 62:3347-3356. [PMID: 37132835 DOI: 10.1364/ao.483985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The coefficient of thermal expansion (CTE) of ultra-low-expansion (ULE) glass is critical to the development of precision optical systems. Herein, an ultrasonic immersion pulse-reflection method is proposed to characterize the CTE of ULE glass. The ultrasonic longitudinal wave velocity of ULE-glass samples with significantly different CTE values was measured using a correlation algorithm combined with moving-average filtering, which can achieve 0.2 m/s precision with a contribution to the ultrasonic CTE measurement uncertainty of 0.47 ppb/°C. Furthermore, the established ultrasonic CTE measurement model predicted the 5°C-35°C mean CTE with a root-mean-square error of 0.9 ppb/°C. Notably, a complete uncertainty analysis methodology was established in this paper, which can provide directional guidance for the subsequent development of higher-performance measurement devices and the improvement of relevant signal processing procedures.
Collapse
|
6
|
Wu Z, Zou Y, Deng H, Xiong L, Liu Q, Shang L. Broadband devices for a polarization converter based on optical metasurfaces. Appl Opt 2022; 61:7119-7124. [PMID: 36256329 DOI: 10.1364/ao.464801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/29/2022] [Indexed: 06/16/2023]
Abstract
Devices employed for optical polarization conversion are widely used in the areas of optical focusing, optical imaging, and microscopy. To circumvent the problems of traditional optical polarization conversion devices, such as a narrow bandwidth, bulky size, and integration difficulties, a linear-radial polarization converter (LRPC) method based on optical metasurfaces is proposed. For a visible wavelength, i.e., λ=632.8nm, an all-dielectric half-wave plate and a LRPC with a size of 40λ (25.312 µm) are designed. The simulated results demonstrate that the LRPC creates a radially polarized wave from a linearly polarized wave in the wavelength range of 620-680 nm. In addition, a cylindrical vectorial wave with different polarizations can be generated via an adjustment of the polarization direction of the incident wave. These types of polarization converters have the important advantage of high transmittance, while also being ultra-thin and easy to integrate. They are expected to be suitable for miniaturized and integrated optical devices.
Collapse
|
7
|
Li T, Huang JJ, Shang L, Jiang X, Lin Y, Liu XZ, Guo HW, Zhang W, Wang BX. [Characteristics and risk factors of functional constipation in children aged 0-4 years in Xi 'an]. Zhonghua Er Ke Za Zhi 2022; 60:647-654. [PMID: 35768351 DOI: 10.3760/cma.j.cn112140-20220309-00187] [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: 06/15/2023]
Abstract
Objective: To investigate the epidemiology, characteristics and risk factors of functional constipation (FC) in children aged 0-4 years in Xi'an. Methods: From October, 2020 to June, 2021, a prevalence survey was conducted among 2 615 children aged 0-4 years in Xi'an by group sampling. The related factors of FC were investigated by questionnaire designed based on Rome Ⅳ diagnostic criteria.The children were divided into FC group and non-FC group. The prevalence, symptoms and signs of FC were analyzed, and its risk factors were analyzed by multivariate Logistic regression. Results: A total of 2 985 valid questionnaires were handed out, and 2 711 (90.8%) were received back. A total of 2 615 questionnaires were valid, with an effective rate of 96.5%. There were 1 338 males (51.2%) and 1 277 females (48.8%). There were 260 cases in FC group and 2 355 cases in non-FC group. The prevalence of FC in children aged 0-4 years in Xi 'an was 10.6%.There were significant differences in FC prevalence among children of different ages and sex (χ2=14.58,4.39, both P<0.05), but not in urban or rural residence (χ2=3.29, P=0.070). The main symptoms of FC group in the last month were large-diameter feces (73.5%, 191/260), painful defecation or dry and hard defecation (65.8%, 171/260). In the last month, FC group had higher incidences of the Bristol type 1, 2 and 3 stool, fecal retention, prolonged defecation, abdominal pain and incomplete defecation compared with non-FC group, with statistical significance (all P<0.05). Parental history of childhood constipation (OR=2.13, 95%CI 1.55-2.92), fever in the last month (OR=1.86, 95%CI 1.32-2.63), history of constipation (OR=3.24, 95%CI 2.46-4.26) and taking probiotics in the last month (OR=1.45, 95%CI 1.11-1.91) were risk factors of FC in children aged 0-4 years. Stratified with age, the results showed that complementary feeding earlier than 5 months of age or later than 6 months of age (OR=2.42, 95%CI 1.13-5.20), dry stools during the complementary feeding (OR=11.27, 95%CI 5.15-24.66), history of constipation (OR=2.29, 95%CI 1.23-4.29) and taking probiotics in the last month (OR=1.88, 95%CI 1.10-3.23) were risk factors of FC in children aged 0-<1 year, and breastfeeding (OR=0.53, 95%CI 0.29-0.94) was a protective factor of FC in children aged 0-<1 year. Family members' recent constipation history (OR=2.02, 95%CI 1.06-3.85) and past history of constipation (OR=3.06, 95%CI 1.74-5.38) were FC risk factors for children aged 1-<2 years. Parental history of childhood constipation (OR=3.12, 95%CI 2.00-4.85), frequency of eating vegetables less than 3 times per week (OR=3.28, 95%CI 2.00-5.38), history of constipation (OR=3.66, 95%CI 2.42-5.53) and taking antibiotics in the last month (OR=1.65, 95%CI 1.06-2.55) were risk factors for FC in children aged 2-4 years. Conclusions: FC in children aged 0-4 years in Xi'an is mainly manifested with large-diameter feces and painful defecation or dry and hard defecation in the last month. It is associated with a variety of risk factors, which are different in different age groups.
Collapse
Affiliation(s)
- T Li
- Department of Pediatrics, Tangdu Hospital of Air Force Medical University, Xi'an 710000,China
| | - J J Huang
- Department of Pediatrics, Tangdu Hospital of Air Force Medical University, Xi'an 710000,China
| | - L Shang
- Department of Statistics, Air Force Medical University, Xi 'an 710000, China
| | - X Jiang
- Department of Pediatrics, Tangdu Hospital of Air Force Medical University, Xi'an 710000,China
| | - Y Lin
- Department of Pediatrics, Tangdu Hospital of Air Force Medical University, Xi'an 710000,China
| | - X Z Liu
- Department of Pediatrics, Tangdu Hospital of Air Force Medical University, Xi'an 710000,China
| | - H W Guo
- Department of Pediatrics, Tangdu Hospital of Air Force Medical University, Xi'an 710000,China
| | - W Zhang
- Department of Pediatrics, Tangdu Hospital of Air Force Medical University, Xi'an 710000,China
| | - B X Wang
- Department of Pediatrics, Tangdu Hospital of Air Force Medical University, Xi'an 710000,China
| |
Collapse
|
8
|
Shang L, Jiang W, Zhang J, Wu W. [P4HA2 promotes occurrence and progression of liver cancer by regulating the PI3K/Akt/mTOR signaling pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:665-672. [PMID: 35673909 DOI: 10.12122/j.issn.1673-4254.2022.05.06] [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: 11/24/2022]
Abstract
OBJECTIVE To investigate the role of proline 4-hydroxylase Ⅱ (P4HA2) in the occurrence and progression of liver cancer. METHODS GEPIA and Human Protein Atlas database were used to predict the expression of P4HA2 in hepatocellular carcinoma (HCC), and K-M plotter online database was used to analyze the relationship between P4HA2 expression and the prognosis of HCC. We also examined the expressions of P4HA2 in HCC cells and normal hepatocytes using qRT-PCR and Western blotting. With lentivirus-mediated RNA interference, P4HA2 expression was knocked down in hepatoma SNU-449 and Hep-3B cells, and the changes in cell proliferation, migration and invasion were assessed using cell counting kit-8 (CCK-8) assay, colony formation test, scratch test and Transwell assay. The changes in the expressions of epithelial-mesenchymal transition (EMT) and PI3K/Akt/mTOR signal pathway-related proteins were detected using Western blotting. RESULTS Online database analysis showed that the expression of P4HA2 was significantly higher in HCC tissues than in normal liver tissues (P < 0.05). The expression levels of P4HA2 mRNA and protein were also significantly higher in HCC cell lines than in normal hepatocytes (P < 0.01). Lentivirus-mediated RNA interference of P4HA2 significantly lowered the expression levels of P4HA2 mRNA and protein in the hepatoma cells (P < 0.05) and caused obvious inhibition of cell proliferation, migration and invasion. P4HA2 knockdown significantly increased the expression of E-cadherin protein, lowered the expressions of N-cadherin and Snail, and obviously decreased the expressions of phosphorylated PI3K, AKT and mTOR (P < 0.05). CONCLUSION P4HA2 enhances the proliferation, migration, invasion, and EMT of hepatoma cells by activating the PI3K/Akt/mTOR signaling pathway to promote the occurrence and progression of liver cancer.
Collapse
Affiliation(s)
- L Shang
- Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, China
| | - W Jiang
- Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, China
| | - J Zhang
- Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, China
| | - W Wu
- Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, China.,Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, China
| |
Collapse
|
9
|
Tang Z, Miao J, Liu Q, Qu W, Luo L, Shang L, Deng H. Ammonium perchlorate moisture quantitative detection using terahertz spectroscopy combined with chemometrics. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106635] [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]
|
10
|
Zhang Y, Betran AP, Li X, Liu D, Yuan N, Shang L, Lin W, Tu S, Wang L, Wu X, Zhu T, Zhang Y, Lu Z, Zheng L, Gu C, Fang J, Liu Z, Ma L, Cai Z, Yang X, Li H, Zhang H, Zhao X, Yan L, Wang L, Sun X, Luo Q, Liu L, Zhu J, Qin W, Yao Q, Dong S, Yang Y, Cui Z, He Y, Feng X, He L, Zhang H, Zhang L, Wang X, Souza JP, Qi H, Duan T, Zhang J. What is an appropriate caesarean delivery rate for China: a multicentre survey. BJOG 2021; 129:138-147. [PMID: 34559941 PMCID: PMC9297886 DOI: 10.1111/1471-0528.16951] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2021] [Indexed: 11/30/2022]
Abstract
Objective To assess the current status of caesarean delivery (CD) in China, propose reference CD rates for China overall, and by regions, investigate the main indications for CDs and identify possible areas for safe reduction. Design A multicentre cross‐sectional study. Setting A total of 94 hospitals across 23 provinces in China. Population A total of 73 977 randomly selected deliveries. Methods We used a modified Robson classification to characterise CDs in subgroups and by regions, and the World Health Organization (WHO) C‐Model to calculate reference CD rates. Main outcome measures CD rates in China. Results In 2015–2016, the overall CD rate in China was 38.9% (95% CI 38.6–39.3%). Considering the obstetric characteristics of the population, the multivariable model‐based reference CD rate was estimated at 28.5% (95% CI 28.3–28.8%). Accordingly, an absolute reduction of 10.4% (or 26.7% relative reduction) may be considered. The CD rate varied substantially by region. Previous CD was the most common indication in all regions, accounting for 38.2% of all CDs, followed by maternal request (9.8%), labour dystocia (8.3%), fetal distress (7.7%) and malpresentation (7.6%). Overall, 12.7% of women had prelabour CDs, contributing to 32.8% of the total CDs. Conclusions Nearly 39% of births were delivered by caesarean in China but a reduction of this rate by a quarter may be considered attainable. Repeat CD contributed more than one‐third of the total CDs. Given the large variation in maternal characteristics, region‐specific or even hospital‐specific reference CD rates are needed for precision management of CD. Tweetable abstract The caesarean rate in 2015–2016 in China was 38.9%, whereas the reference rate was 28.5%. The caesarean rate in 2015–2016 in China was 38.9%, whereas the reference rate was 28.5%. Linked article This article is commented on by M Varner, p. 148 in this issue. To view this mini commentary visit https://doi.org/10.1111/1471-0528.16953.
Collapse
Affiliation(s)
- Y Zhang
- Ministry of Education - Shanghai Key Laboratory of Children's Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - A P Betran
- UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction, Department of Reproductive Health and Research, World Health Organization (WHO), Geneva, Switzerland
| | - X Li
- Obstetrics and Gynaecology Hospital of Fudan University, Shanghai, China
| | - D Liu
- Dongguan City Maternal and Child Health Hospital, Southern Medical University, Guangdong, China
| | - N Yuan
- Department of Obstetrics and Gynaecology, The Second Hospital Affiliated to Shaanxi University of Chinese Medicine, Shaanxi, China
| | - L Shang
- Department of Obstetrics, The Maternal and Child Health Hospital of Xinxiang, Henan, China
| | - W Lin
- Department of Obstetrics, The Maternal and Child Health Hospital of Dalian, Liaoning, China
| | - S Tu
- Department of Obstetrics and Gynaecology, Southwest Medical University, Sichuan, China
| | - L Wang
- Department of Obstetrics and Gynaecology, The First Hospital Affiliated to Kunming Medical University, Yunnan, China
| | - X Wu
- Department of Obstetrics, Jiangsu Women and Child Health Hospital, Jiangsu, China
| | - T Zhu
- The First People's Hospital of Zhaotong, Kunming Medical University, Yunnan, China
| | - Y Zhang
- Department of Obstetrics, The Maternal and Child Health Hospital of Qujing, Yunnan, China
| | - Z Lu
- Suining Central Hospital, Chongqing Medical University, Sichuan, China
| | - L Zheng
- Taizhou Hospital of Zhejiang Province, Zhejiang, China
| | - C Gu
- Yangzhou Maternal and Child Care Service Centre, Jiangsu, China
| | - J Fang
- Qingdao Chengyang People's Hospital, Shandong First Medical University, Shandong, China
| | - Z Liu
- Department of Obstetrics, The Maternal and Child Health Hospital of Baoji, Shaanxi, China
| | - L Ma
- Yanshi City People's Hospital, Henan, China
| | - Z Cai
- Department of Obstetrics and Gynaecology, Aviation Hospital of Beijing, China Medical University, Beijing, China
| | - X Yang
- Department of Obstetrics, The Maternal and Child Health Hospital of Luohu District, Shenzhen, China
| | - H Li
- Yanan University Affiliated Hospital, Shaanxi, China
| | - H Zhang
- Haikou Hospital of the Maternal and Child Health, Hainan, China
| | - X Zhao
- The First People's Hospital of Taizhou, Wenzhou Medical University, Zhejiang, China
| | - L Yan
- The Second Affiliated Hospital of Hebei North University, Hebei, China
| | - L Wang
- Department of Obstetrics and Gynaecology, The 174th Hospital of the Chinese People's Liberation Army, Xiamen University, Fujian, China
| | - X Sun
- Puyang Maternal and Child Care Centres, Henan, China
| | - Q Luo
- Luzhou People's Hospital, Sichuan, China
| | - L Liu
- Affiliated Hospital of Jiangsu University, Jiangsu, China
| | - J Zhu
- The Second People's Hospital of Tongxiang, Zhejiang, China
| | - W Qin
- Department of Obstetrics and Gynaecology, Aviation Hospital of Beijing, China Medical University, Beijing, China
| | - Q Yao
- The Central Hospital of Shaoyang, University of South China, Hunan, China
| | - S Dong
- Affiliated Hospital of Zunyi Medical University, Guizhou, China
| | - Y Yang
- The First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Z Cui
- Department of Obstetrics, The Maternal and Child Health Hospital of Cangzhou, Hebei, China
| | - Y He
- The Second People's Hospital of Qingyuan City, Guangdong, China
| | - X Feng
- Department of Obstetrics and Gynaecology, Fujian Medical University Union Hospital, Fujian Medical University, Fujian, China
| | - L He
- The People's Hospital of Pengzhou, Sichuan, China
| | - H Zhang
- Department of Obstetrics, Eastern District of the Fourth Hospital of Hebei Medical University, Hebei, China
| | - L Zhang
- Ministry of Education - Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Wang
- Department of Obstetrics and Gynaecology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J P Souza
- Department of Social Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - H Qi
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - T Duan
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - J Zhang
- Ministry of Education - Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
11
|
Zhang L, Bu Z, Shen J, Shang L, Chen Y, Zhang P, Wang Y. MicroRNA-221 regulates cell activity and apoptosis in acute lymphoblastic leukemia via regulating PTEN. Exp Ther Med 2021; 22:1133. [PMID: 34504582 PMCID: PMC8383336 DOI: 10.3892/etm.2021.10567] [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: 01/16/2019] [Accepted: 07/16/2021] [Indexed: 12/11/2022] Open
Abstract
T cell acute lymphoblastic leukemia (T-ALL), an aggressive and heterogeneous malignancy originating from T cell precursors (thymocytes), accounts for ~15% of all ALL cases in children and for ~25% in adults. The present study aimed to investigate the role of microRNA-221 (miR-221) in the regulation of cell viability and apoptosis of human T-ALL cells and its related regulatory mechanisms. To perform this investigation, miR-221 was upregulated or knocked down in human T-ALL cells (Jurkat cells) using miR-221 mimic or inhibitor, respectively. Then, cell viability was determined using a 3-(4,5-dimethylthiahiazol-2-y1)-2,5-diphenytetrazolium bromide assay, cell invasion and migration were analyzed via Transwell assays, and cell apoptosis was detected using flow cytometry. It was found that transfection with a miR-221 inhibitor significantly inhibited Jurkat cell viability, migration and invasion, and induced Jurkat cell apoptosis. Whereas, transfection with the miR-221 mimic resulted in the opposite effects. Besides, the results showed that phosphatase and tensin homologue deleted on chromosome 10 (PTEN) was a target of miR-221. Moreover, it was observed that the effects of the miR-221 inhibitor on Jurkat cell viability, migration and invasion, and cell apoptosis were significantly eliminated by PTEN-small interfering RNA. In addition, it was shown that the phosphatidylinositol 3-kinase/AKT pathway was involved in the effect of miR-221 on Jurkat cells. In conclusion, the data indicated that miR-221 existed as an oncogene in T-ALL, and its downregulation could inhibit the development of ALL by targeting PTEN. Therefore, miR-221 may be a novel potential therapeutic target for ALL.
Collapse
Affiliation(s)
- Lingyan Zhang
- Department of Hematology and Oncology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang 310003, P.R. China
| | - Zibin Bu
- Department of Hematology and Oncology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang 310003, P.R. China
| | - Juan Shen
- Department of Hematology and Oncology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang 310003, P.R. China
| | - Liping Shang
- Department of Hematology and Oncology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang 310003, P.R. China
| | - Yuanyuan Chen
- Department of Hematology and Oncology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang 310003, P.R. China
| | - Ping Zhang
- Department of Hematology and Oncology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang 310003, P.R. China
| | - Yan Wang
- Department of Hematology and Oncology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, Zhejiang 310003, P.R. China
| |
Collapse
|
12
|
Yang J, Deng H, Xiong Z, Shang L. Terahertz sensor based on a three-dimensional double I-type metamaterial integrated microfluidic channel. Appl Opt 2021; 60:3816-3822. [PMID: 33983317 DOI: 10.1364/ao.421910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
Terahertz metamaterial sensors have received extensive attention in biosensing applications. However, sensitivity toward terahertz frequencies emitted by liquid samples remains challenging because of the strong absorption of terahertz waves by water. Here, we present a highly sensitive terahertz sensor based on a three-dimensional double I-type metamaterial integrated microfluidic channel. The designed sensor produces an inductive-capacitive (LC) resonance with a high quality factor of approximately 72, while demonstrating a maximum sensitivity of 832 GHz/RIU. Furthermore, we analyzed the relationship between the resonance frequency and ethanol concentration. These findings would promote the application of terahertz technology in label-free and rapid biomedical sensing as well as substance detection.
Collapse
|
13
|
Wang KS, Yu G, Xu C, Meng XH, Zhou J, Zheng C, Deng Z, Shang L, Liu R, Su S, Zhou X, Li Q, Li J, Wang J, Ma K, Qi J, Hu Z, Tang P, Deng J, Qiu X, Li BY, Shen WD, Quan RP, Yang JT, Huang LY, Xiao Y, Yang ZC, Li Z, Wang SC, Ren H, Liang C, Guo W, Li Y, Xiao H, Gu Y, Yun JP, Huang D, Song Z, Fan X, Chen L, Yan X, Li Z, Huang ZC, Huang J, Luttrell J, Zhang CY, Zhou W, Zhang K, Yi C, Wu C, Shen H, Wang YP, Xiao HM, Deng HW. Accurate diagnosis of colorectal cancer based on histopathology images using artificial intelligence. BMC Med 2021; 19:76. [PMID: 33752648 PMCID: PMC7986569 DOI: 10.1186/s12916-021-01942-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 02/16/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Accurate and robust pathological image analysis for colorectal cancer (CRC) diagnosis is time-consuming and knowledge-intensive, but is essential for CRC patients' treatment. The current heavy workload of pathologists in clinics/hospitals may easily lead to unconscious misdiagnosis of CRC based on daily image analyses. METHODS Based on a state-of-the-art transfer-learned deep convolutional neural network in artificial intelligence (AI), we proposed a novel patch aggregation strategy for clinic CRC diagnosis using weakly labeled pathological whole-slide image (WSI) patches. This approach was trained and validated using an unprecedented and enormously large number of 170,099 patches, > 14,680 WSIs, from > 9631 subjects that covered diverse and representative clinical cases from multi-independent-sources across China, the USA, and Germany. RESULTS Our innovative AI tool consistently and nearly perfectly agreed with (average Kappa statistic 0.896) and even often better than most of the experienced expert pathologists when tested in diagnosing CRC WSIs from multicenters. The average area under the receiver operating characteristics curve (AUC) of AI was greater than that of the pathologists (0.988 vs 0.970) and achieved the best performance among the application of other AI methods to CRC diagnosis. Our AI-generated heatmap highlights the image regions of cancer tissue/cells. CONCLUSIONS This first-ever generalizable AI system can handle large amounts of WSIs consistently and robustly without potential bias due to fatigue commonly experienced by clinical pathologists. It will drastically alleviate the heavy clinical burden of daily pathology diagnosis and improve the treatment for CRC patients. This tool is generalizable to other cancer diagnosis based on image recognition.
Collapse
Affiliation(s)
- K S Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - G Yu
- Department of Biomedical Engineering, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - C Xu
- Department of Biostatistics and Epidemiology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - X H Meng
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - J Zhou
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - C Zheng
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - Z Deng
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - L Shang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - R Liu
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - S Su
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - X Zhou
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Q Li
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - J Li
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - J Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - K Ma
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - J Qi
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - Z Hu
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - P Tang
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - J Deng
- Department of Deming Department of Medicine, Tulane Center of Biomedical Informatics and Genomics, Tulane University School of Medicine, 1440 Canal Street, Suite 1610, New Orleans, LA, 70112, USA
| | - X Qiu
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - B Y Li
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - W D Shen
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - R P Quan
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - J T Yang
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - L Y Huang
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - Y Xiao
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - Z C Yang
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, Hunan, China
| | - Z Li
- School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - S C Wang
- College of Information Science and Engineering, Hunan Normal University, Changsha, 410081, Hunan, China
| | - H Ren
- Department of Pathology, Gongli Hospital, Second Military Medical University, Shanghai, 200135, China
- Department of Pathology, the Peace Hospital Affiliated to Changzhi Medical College, Changzhi, 046000, China
| | - C Liang
- Pathological Laboratory of Adicon Medical Laboratory Co., Ltd, Hangzhou, 310023, Zhejiang, China
| | - W Guo
- Department of Pathology, First Affiliated Hospital of Hunan Normal University, The People's Hospital of Hunan Province, Changsha, 410005, Hunan, China
| | - Y Li
- Department of Pathology, First Affiliated Hospital of Hunan Normal University, The People's Hospital of Hunan Province, Changsha, 410005, Hunan, China
| | - H Xiao
- Department of Pathology, the Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Y Gu
- Department of Pathology, the Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - J P Yun
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China
| | - D Huang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
| | - Z Song
- Department of Pathology, Chinese PLA General Hospital, Beijing, 100853, China
| | - X Fan
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - L Chen
- Department of Pathology, The first affiliated hospital, Air Force Medical University, Xi'an, 710032, China
| | - X Yan
- Institute of Pathology and southwest cancer center, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Z Li
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Z C Huang
- Department of Biomedical Engineering, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - J Huang
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - J Luttrell
- School of Computing Sciences and Computer Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - C Y Zhang
- School of Computing Sciences and Computer Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - W Zhou
- College of Computing, Michigan Technological University, Houghton, MI, 49931, USA
| | - K Zhang
- Department of Computer Science, Bioinformatics Facility of Xavier NIH RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA, 70125, USA
| | - C Yi
- Department of Pathology, Ochsner Medical Center, New Orleans, LA, 70121, USA
| | - C Wu
- Department of Statistics, Florida State University, Tallahassee, FL, 32306, USA
| | - H Shen
- Department of Deming Department of Medicine, Tulane Center of Biomedical Informatics and Genomics, Tulane University School of Medicine, 1440 Canal Street, Suite 1610, New Orleans, LA, 70112, USA
- Division of Biomedical Informatics and Genomics, Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Y P Wang
- Department of Deming Department of Medicine, Tulane Center of Biomedical Informatics and Genomics, Tulane University School of Medicine, 1440 Canal Street, Suite 1610, New Orleans, LA, 70112, USA
- Department of Biomedical Engineering, Tulane University, New Orleans, LA, 70118, USA
| | - H M Xiao
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China.
| | - H W Deng
- Department of Deming Department of Medicine, Tulane Center of Biomedical Informatics and Genomics, Tulane University School of Medicine, 1440 Canal Street, Suite 1610, New Orleans, LA, 70112, USA.
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China.
- Division of Biomedical Informatics and Genomics, Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, 70112, USA.
| |
Collapse
|
14
|
Tang Z, Deng H, Liu Q, Guo J, Shang L. Quantitative analysis of low-concentration α-HMX based on terahertz spectroscopy. Anal Methods 2020; 12:5684-5690. [PMID: 33201938 DOI: 10.1039/d0ay01583k] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Due to the instability of α type HMX at low concentrations, it belongs to the impurity crystal form. To ensure the functional effectiveness, operational reliability and management safety of HMX, it is necessary to quantify the low content of the unstable α-HMX crystal form in the composite explosive. In this study, low-concentration α-HMX is quantitatively analyzed in a mixture of α- and β-HMX. First, terahertz time-domain spectroscopy (THz-TDS) is used to obtain the absorption spectrum of the α/β-HMX element in the frequency range of 0.2-2.0 THz, and the characteristic frequency is selected. The absorption coefficient data in the frequency band of 0.7-1.3 THz are considered as the sample data for quantitative analysis. Finally, support vector machine (SVM) algorithm is used to establish a regression model, and principal component analysis (PCA) is employed for feature extraction. Grid search (GS), genetic algorithm (GA) and particle swarm optimization (PSO) are utilized for parameter optimization in support vector regression (SVR). These algorithms are combined to establish six regression models, and their effectiveness is assessed. The experimental results show that all the six methods can predict the content of α-HMX components with a small error and a high prediction accuracy. Compared to GA-SVR and PSO-SVR models, the PCA-GA-SVR and PCA-PSO-SVR models exhibit higher prediction accuracy and stability. The test set of the PCA-GA-SVR model reveals an average absolute error of 0.880%. It has the highest prediction accuracy, and the coefficient of determination (R2) reaches 0.9996. This indicates that PCA and SVR can be effectively used in the detection of low-concentration HMX components and can serve as a reliable basis for the quantitative analysis of other explosives.
Collapse
Affiliation(s)
- Zhengmin Tang
- School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
| | | | | | | | | |
Collapse
|
15
|
LI Y, Rao S, Azghadi S, Nguyen K, Moran A, Usera B, Dyer B, Shang L, Chen Q, Rong Y. Deep Learning Based and Atlas Based Auto-Segmentation for Swallowing-Related Organs for Head-and-Neck Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2329] [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]
|
16
|
Weng X, Yue W, Shang L, Wang D, Xu Y, Chen Y, Ge J. Inhibition of CD44 attenuates pressure overload-induced cardiac and lung inflammation, fibrosis, and heart failure progression. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Inflammation contributes to heart failure (HF) development and progression. CD44 is a member of the hyaluronate receptor family of cell adhesion molecules, which regulates tissue inflammation and fibrosis through modulating macrophage and lymphocyte migration and homing in several diseases. Here we evaluated the role and cellular mechanism of CD44 in regulating transverse aortic constriction (TAC)-induced HF development and progression in mice.
Methods and results
C57/B6 background CD44 KO and wild type mice (6–8 weeks) were subjected to TAC to evaluate the effect of CD44 on the development of TAC-induced LV hypertrophy and cardiac dysfunction. Due to the rapid response to TAC, Balb/c mice (6–8 weeks) were used to determine the effect of CD44 on the progression of TAC-induced congestive heart failure. We found that CD44 expression is dramatically increased in left ventricular (LV) tissues obtained from HF patients and mice. While CD44 gene knockout (KO) has no detectable effect on cardiac structure and function under control conditions, CD44 KO mice were protected from TAC-induced LV inflammation, fibrosis, hypertrophy, dysfunction, and lung remodeling as compared with wild type mice. In addition, we found that inhibition of CD44 signaling with blocking antibodies (Abs) significantly attenuated the transition from LV failure to lung remodeling, and right ventricular hypertrophy in mice with existing HF.
Conclusions
These data identify an important role of CD44 in attenuating cardiac and lung inflammation, fibrosis, HF development, and HF progression, suggesting that inhibition of CD44 signaling may be useful in preventing and treating HF.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Chinese National Natural Science Foundation Grants and American Heart Association
Collapse
Affiliation(s)
- X Weng
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - W Yue
- Shanghai Tenth People's Hospital, Shanghai, China
| | - L Shang
- Shenyang Northern Hospital, Shenyang, China
| | - D Wang
- Shanghai Tenth People's Hospital, Shanghai, China
| | - Y Xu
- Shanghai Tenth People's Hospital, Shanghai, China
| | - Y Chen
- University of Mississippi Medical Center, Department of Physiology and Biophysics, Jackson, United States of America
| | - J Ge
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| |
Collapse
|
17
|
Wu Z, Deng H, Li X, Liu Q, Shang L. Generation of subdiffraction longitudinal bifoci by shaping a radially polarized wave. Appl Opt 2020; 59:7841-7845. [PMID: 32976455 DOI: 10.1364/ao.397584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
Lenses with two or more foci along the longitudinal direction exhibit immense potential in several optical applications. In this study, we propose an approach for generating subdiffraction longitudinal bifoci by binary-phase bifocal super-oscillatory lenses (SOLs), which are realized by simple AND operation between two single-foci SOLs with different focal lengths. Three bifocal SOLs with radiusRlens=70λ are designed at an operating wavelength of λ=118.8µm. Simulation results demonstrate that the minimum full width at half maximum (FWHM) is 0.397λ, and the maximum FWHM is 0.449λ, which is still smaller than the Abbe diffraction limit of 0.510λ, while all the sidelobe ratios are small (<15.1%). By properly choosing the focal length of the single-foci SOLs in the design process, the distance between the two foci can be easily controlled. Significantly, the generated bifoci with relatively uniform intensity contain a strong longitudinal electric field, which indicates their excellent prospects in optical imaging, particle acceleration, and other optical applications. In addition, the proposed bifoci-SOLs are based on the binary phase modulation, which facilitates easy fabrication compared with other approaches. These outstanding properties indicate the wide application prospects of bifocal SOLs.
Collapse
|
18
|
O'Malley A, Rich E, Shang L, Niedzwiecki M, Rose T, Ghosh A, Peikes D, Poznyak D. MEASURING SAFETY, QUALITY, AND VALUE. Health Serv Res 2020. [DOI: 10.1111/1475-6773.13453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
| | - E. Rich
- Mathematica Washington DC USA
| | - L. Shang
- Mathematica Policy Researcher Princeton NJ USA
| | | | - T. Rose
- Mathematica Policy Research Ann Arbor MI USA
| | - A. Ghosh
- Mathematica Policy Research Princeton NJ USA
| | - D. Peikes
- Mathematica Policy Research Princeton NJ USA
| | - D. Poznyak
- Mathematica Policy Research Princeton NJ USA
| |
Collapse
|
19
|
Shi Y, Li YY, Liu Y, Zheng B, Shang L, Li QH, Jia YJ, Sun WC, Duan ZC, He DS, Guo GQ, Ru K, Wang JX, Xiao ZJ, Wang HJ. [Clinical and laboratory characteristics in patients with myeloid neoplasms complicated with clonal T large granular lymphocyte proliferation]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:276-281. [PMID: 32447929 PMCID: PMC7364924 DOI: 10.3760/cma.j.issn.0253-2727.2020.04.003] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinical manifestations and laboratory features in patients with myeloid neoplasms complicated with clonal T large granular lymphocyte (T-LGL) proliferation. Methods: The clinical data of 5 patients with myeloid neoplasms complicated with clonal T-LGL proliferation from November 2017 to November 2018 in Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College were analyzed retrospectively. Results: The median age was 60 years old. All patients had a history of abnormal peripheral blood cell counts for over 6 months. The absolute lymphocyte count in peripheral blood was less than 1.0×10(9)/L. In addition to the typical T-LGL phenotype, the immunophenotype was heterogenous including CD4(+)CD8(-) in 2 patients, the other 3 CD4(-)CD8(+). Four patients were αβ type T cells, the other one was γδ type. STAT3 mutation was detected in 1 patient by next-generation sequencing, the other 4 cases were negative. Conclusions: Clonal T-LGL proliferation with myeloid neoplasm develops in an indolent manner, mainly in elderly patients. Hemocytopenia is the most common manifestation. The diagnosis of T-LGL proliferation does not have specific criteria, that it should be differentiated from other T cell proliferative disorders, such as T-cell clones of undetermined significance. STAT3 or STAT5b mutation may help distinguish.
Collapse
Affiliation(s)
- Y Shi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y Y Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - B Zheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - L Shang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Q H Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y J Jia
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - W C Sun
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Z C Duan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - D S He
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - G Q Guo
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - K Ru
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - J X Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Z J Xiao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - H J Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| |
Collapse
|
20
|
Yang LN, Liu H, Duan GH, Huang YM, Liu S, Fang ZG, Wu EJ, Shang L, Zhan J. The Phytophthora infestans AVR2 Effector Escapes R2 Recognition Through Effector Disordering. Mol Plant Microbe Interact 2020; 33:921-931. [PMID: 32212906 DOI: 10.1094/mpmi-07-19-0179-r] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Intrinsic disorder is a common structural characteristic of proteins and a central player in the biochemical processes of species. However, the role of intrinsic disorder in the evolution of plant-pathogen interactions is rarely investigated. Here, we explored the role of intrinsic disorder in the development of the pathogenicity in the RXLR AVR2 effector of Phytophthora infestans. We found AVR2 exhibited high nucleotide diversity generated by point mutation, early-termination, altered start codon, deletion/insertion, and intragenic recombination and is predicted to be an intrinsically disordered protein. AVR2 amino acid sequences conferring a virulent phenotype had a higher disorder tendency in both the N- and C-terminal regions compared with sequences conferring an avirulent phenotype. In addition, we also found virulent AVR2 mutants gained one or two short linear interaction motifs, the critical components of disordered proteins required for protein-protein interactions. Furthermore, virulent AVR2 mutants were predicted to be unstable and have a short protein half-life. Taken together, these results support the notion that intrinsic disorder is important for the effector function of pathogens and demonstrate that SLiM-mediated protein-protein interaction in the C-terminal effector domain might contribute greatly to the evasion of resistance-protein detection in P. infestans.
Collapse
Affiliation(s)
- Li-Na Yang
- Key Lab for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agricultural and Forestry University, Fuzhou, Fujian 350002, China
| | - Hao Liu
- Key Lab for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agricultural and Forestry University, Fuzhou, Fujian 350002, China
| | - Guo-Hua Duan
- Key Lab for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agricultural and Forestry University, Fuzhou, Fujian 350002, China
| | - Yan-Mei Huang
- Key Lab for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agricultural and Forestry University, Fuzhou, Fujian 350002, China
| | - Shiting Liu
- Key Lab for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agricultural and Forestry University, Fuzhou, Fujian 350002, China
| | - Zhi-Guo Fang
- Xiangyang Academy of Agricultural Sciences, Xiangyang 441057, Hubei, China
| | - E-Jiao Wu
- Key Lab for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agricultural and Forestry University, Fuzhou, Fujian 350002, China
| | - Liping Shang
- Key Lab for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agricultural and Forestry University, Fuzhou, Fujian 350002, China
| | - Jiasui Zhan
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| |
Collapse
|
21
|
Shang L, Zhang T, Luo J, Yuan J, Gao C, LI XF, Gao H. FRI0261 DIFFERENTIAL EXPRESSION OF PERIPHERAL CD4+ T CELLS IN PATIENTS WITH SYSTEMIC SCLEROSIS AND MIXED CONNECTIVE TISSUE DISEASE. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:The CD4+T cell subsets plays an important role in its pathogenesis, and its new research are constantly being published, but its specific changes between SSc and MCTD are still unclear.Objectives:The aim of the present study was to explore the absolute numbers of CD4+T subsets in peripheral blood(PB) of patients with SSc and MCTD using our modified flow cryometric method and investigate the role in the pathogenesis of both.Methods:The PB samples from 54 patients with SSc, 51 patients with MCTD as well as 30 healthy control subjects were analyzed for lymphocyte subsets using flow cytometry. Of these patients, 19 had pulmonary involvement, including 9 patients with SSc and 10 patients with MCTD. Using directly the percentages from flow cytometry combined with internal standard beads calculated absolute number of peripheral lymphocyte subsets from the subjects in each group.Results:Although there were some changes among CD4+T cell subsets in PB from these SSc patients and MCTD patients, the major alteration was the reductions of Treg cells. Compared with the normal controls, the absolute number of CD4+CD25+FOXP3+Treg cells were significantly decreased in SSc patients and MCTD patients, and the absolute number of Th1 cells in MCTD patients is also significantly reduced. Notably, the absolute numbers of Th17 and Th2 cells were not different from those of normal controls, but the ratios of Th17/Treg in SSc patients and MCTD patients were significantly higher, causing by insufficient number of Treg cells (Fig 1). In addition, in patients with pulmonary involvement, we found that the absolute number of Treg cells was significantly reduced in patients with MCTD, while the absolute number of Th2 cells and Th17 cells was significantly reduced in patients with SSc(Fig 2).Fig 1.Comparison of the levels of CD4+T lymphocyte subsets in SSc patients, MCTD patients and healthy controls: (A) The absolute number of peripheral Th1 cells in patients with MCTD was significantly reduced; (B and C) There was no significant difference in the absolute number of Th2 cells in peripheral blood of different subjects; (D and E) The ratio of Th17/Treg cells in PB of patients with SSc and MCTD were significantly higher.*P< 0.05; **P< 0.01; ***P< 0.001.Conclusion:The number of peripheral Treg cells in patients with SSc and MCTD was significantly reduced, suggesting that that SSc and MCTD progression is associated with the imbalances between pro-inflammation cells to anti-inflammation Treg cells. In addition, we also found that the decrease in peripheral numbers of Treg cells may contribute to the development of MCTD-associated lung disease, whereas in SSc patients who had lung involvement, the reduce in peripheral number of Th17 cells may result in a severe imbalance of Th17/Treg cells, thereby promoting disease progression.Fig 2.Comparison of the levels of CD4+T lymphocyte subsets in patients who had pulmonary involvement and healthy controls: (A) There was no significant difference in the absolute number of Th1 cells in peripheral blood of different subjects; (B and C) The absolute number of peripheral Th2 cells and Th17 cells in patients with SSc were significantly reduced; (D and E) The ratio of Th17/Treg cells in PB of patients with MCTD were higher.*P< 0.05; **P< 0.01; ***P< 0.001.References:[1]Liu M, Wu W, Sun X, et al. New insights into CD4(+) T cell abnormalities in systemic sclerosis. Cytokine Growth Factor Rev. 2016 Apr; 28:31-6. doi: 10.1016/j.cytogfr.2015.12.002.Acknowledgments:NoneDisclosure of Interests:None declared
Collapse
|
22
|
Shang L, Xu J, Cao B. Fangcang shelter hospitals in COVID-19 pandemic: the practice and its significance. Clin Microbiol Infect 2020; 26:976-978. [PMID: 32360781 PMCID: PMC7252175 DOI: 10.1016/j.cmi.2020.04.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 04/26/2020] [Accepted: 04/27/2020] [Indexed: 12/28/2022]
Affiliation(s)
- L Shang
- Beijing University of Chinese Medicine, Beijing, China; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, China-Japan Friendship Hospital, Beijing, China; Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - J Xu
- Tsinghua University School of Medicine, Beijing, China
| | - B Cao
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, China-Japan Friendship Hospital, Beijing, China; Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China; Tsinghua University-Peking University Joint Center for Life Sciences, Beijing, China; Department of Respiratory Medicine, Capital Medical University, Beijing, China.
| |
Collapse
|
23
|
Bourre L, Xu X, Shang L, Wang L, Li C, Liu Y, Han P, Sun Z, Qu Y, Zhang L, Chen B, Ouyang D, Huang Y, Li H. 42P The establishment of a large tumor organoid biobank using a well characterized/annotated patient-derived xenograft (PDX) library to enable drug discovery and translational research. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
24
|
Feng N, Li X, Shang L, Xu M. [Two cases of occupational frostbite]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 37:937-939. [PMID: 31937039 DOI: 10.3760/cma.j.issn.1001-9391.2019.12.016] [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
The diagnosis, treatment, operation and diagnosis of two cases of occupational frostbite diagnosed in Shandong Academy of Occupational Healthy Occupational Medicine were analyzed retrospectively. In these two patients working in a low temperature environment, the finger frostbite did not arouse enough attention, one patient did not receive timely diagnosis and treatment, and one patient received timely medical treatment, but did not receive proper treatment, which ultimately led to the adverse consequences of finger amputation. The staff under the low temperature environment should strictly carry out the low temperature operation protection standard and improve their self-protection consciousness. If frostbite occurs, they should seek medical treatment in time, which can effectively reduce the disability rate.
Collapse
Affiliation(s)
- N Feng
- Shandong Academy of Occupational Healthy Occupational Medicine, Shandong First Medical University &Shandong Academy of Medical Sciences, Jinan250002, China
| | | | | | | |
Collapse
|
25
|
Zhang L, Bu Z, Shen J, Shang L, Chen Y, Wang Y. A novel circular RNA (hsa_circ_0000370) increases cell viability and inhibits apoptosis of FLT3-ITD-positive acute myeloid leukemia cells by regulating miR-1299 and S100A7A. Biomed Pharmacother 2019; 122:109619. [PMID: 31919040 DOI: 10.1016/j.biopha.2019.109619] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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: 06/27/2019] [Revised: 10/18/2019] [Accepted: 10/26/2019] [Indexed: 01/16/2023] Open
Abstract
FLT3-ITD+ acute myeloid leukemia (AML) is an important subtype of AML, accounting for approximately 25 % of all AML cases in the world. Recently, increasing evidence has shown that circular RNAs (circRNAs) can act as effective biomarkers of various human cancers. However, the roles of circRNAs in AML remain largely unclear. In the present study, circ_0000370 was found to be significantly increased in FLT3-ITD+ AML and was demonstrated to act as an oncogenic circRNA of AML in vitro. TargetScan results showed that miR-1299, miR-370-3p, miR-502-5p, miR-1281 and miR-640 were potential targets of circ_0000370, and miR-1299 had the broadest range of interactome compared with other microRNAs of interest. Moreover, we demonstrated that S100A7A was a target gene of miR-1299, and circ_0000370 could regulate S100A7A expression by sponging miR-1299 in AML cell lines. Therefore, we suggest that the promoting effects of circ_0000370 on the progression of FLT3-ITD+ AML might be relevant to the inhibition of miR-1299 and the upregulation of S100A7A.
Collapse
Affiliation(s)
- Lingyan Zhang
- Division of Hematology-oncology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310003, PR China.
| | - Zibin Bu
- Division of Hematology-oncology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Juan Shen
- Division of Hematology-oncology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Liping Shang
- Division of Hematology-oncology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Yuanyuan Chen
- Division of Hematology-oncology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Yan Wang
- Division of Hematology-oncology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| |
Collapse
|
26
|
Wang T, Zhang Q, Deng H, Shang L, Chen D, Li Y, Zhu S, Li H. Evolution of Oxidizing Inorganic Metal Salts: Ultrafast Laser Initiation Materials Based on Energetic Cationic Coordination Polymers. ACS Appl Mater Interfaces 2019; 11:41523-41530. [PMID: 31596569 DOI: 10.1021/acsami.9b14353] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
An effective and novel design strategy for ultrafast laser-initiating materials has been established on the basis of coordination chemistry for the first time in the present work. In view of the positive effect of Ag ion and perchlorate on laser sensitivity, silver perchlorate as a representative of oxidizing inorganic metal salts was used to construct energetic cationic coordination polymers (ECCPs), which solved the inconvenient situation caused by the difficulty in applying these salts directly in energetic materials because of the unavoidable hygroscopicity and the inhomogeneity of physical mixtures of oxidants and reductants. With the nonenergetic nitrogen-rich ligand 3-amino-1H-1,2,4-triazole-5-carbohydrazide (ATCA), one new laser-sensitive Ag(I)-based ECCP [Ag(ATCA)ClO4]n (1) was successfully synthesized with a compact helical structure proved by X-ray single-diffraction crystal data. The physicochemical property evaluation revealed that this Ag-ECCP was not only completely devoid of the undesirable properties of the silver perchlorate and displayed excellent tolerance to moisture and noncorrosive properties to metal shells, but was also endowed with good thermal stability and excellent safety for mechanical stimulation. Moreover, theoretical calculations based on the standard molar enthalpy of formation and the lead plate explosive test as the actual damage experiment have proved that the compound has a superior detonation performance (up to 6800 m s-1 and 0.511 kcal g-1) compared to the traditional primary explosives. More importantly, the laser-initiation-experiment-based femtosecond laser-testing system and high-speed photography demonstrated that this ECCP was an energetic material with great potential for application in the safety detonator as an ultrafast photosensitive initiating material for laser direct initiation, whose initiation delay time is as low as 73 ms using only 200 mJ initiation energy.
Collapse
Affiliation(s)
- Tingwei Wang
- Institute of Chemical Materials , China Academy of Engineering Physics , Mianyang 621900 , Sichuan , China
| | - Qi Zhang
- Institute of Chemical Materials , China Academy of Engineering Physics , Mianyang 621900 , Sichuan , China
| | - Hu Deng
- School of Information Engineering , Southwest University of Science and Technology , Mianyang 621010 , China
| | - Liping Shang
- School of Information Engineering , Southwest University of Science and Technology , Mianyang 621010 , China
| | - Dong Chen
- Institute of Chemical Materials , China Academy of Engineering Physics , Mianyang 621900 , Sichuan , China
| | - Yan Li
- School of Chemical Engineering , Nanjing University of Science and Technology , 200 Xiaolingwei Street , Xuanwu, Nanjing 210094 , China
| | - Shunguan Zhu
- School of Chemical Engineering , Nanjing University of Science and Technology , 200 Xiaolingwei Street , Xuanwu, Nanjing 210094 , China
| | - Hongzhen Li
- Institute of Chemical Materials , China Academy of Engineering Physics , Mianyang 621900 , Sichuan , China
| |
Collapse
|
27
|
Li J, Huang K, Hu G, Babarinde IA, Li Y, Dong X, Chen YS, Shang L, Guo W, Wang J, Chen Z, Hutchins AP, Yang YG, Yao H. An alternative CTCF isoform antagonizes canonical CTCF occupancy and changes chromatin architecture to promote apoptosis. Nat Commun 2019; 10:1535. [PMID: 30948729 PMCID: PMC6449404 DOI: 10.1038/s41467-019-08949-w] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [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: 03/31/2018] [Accepted: 02/07/2019] [Indexed: 12/20/2022] Open
Abstract
CTCF plays key roles in gene regulation, chromatin insulation, imprinting, X chromosome inactivation and organizing the higher-order chromatin architecture of mammalian genomes. Previous studies have mainly focused on the roles of the canonical CTCF isoform. Here, we explore the functions of an alternatively spliced human CTCF isoform in which exons 3 and 4 are skipped, producing a shorter isoform (CTCF-s). Functionally, we find that CTCF-s competes with the genome binding of canonical CTCF and binds a similar DNA sequence. CTCF-s binding disrupts CTCF/cohesin binding, alters CTCF-mediated chromatin looping and promotes the activation of IFI6 that leads to apoptosis. This effect is caused by an abnormal long-range interaction at the IFI6 enhancer and promoter. Taken together, this study reveals a non-canonical function for CTCF-s that antagonizes the genomic binding of canonical CTCF and cohesin, and that modulates chromatin looping and causes apoptosis by stimulating IFI6 expression. CTCF plays key roles in gene regulation, chromatin insulation and organizing the higher-order chromatin architecture of mammalian genomes. Here the authors investigate the function an alternatively spliced shorter CTCF isoform, finding that this isoform antagonizes canonical CTCF occupancy and changes chromatin architecture to promote apoptosis.
Collapse
Affiliation(s)
- Jiao Li
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, 510530, Guangzhou, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong Provincial Key Laboratory of Biocomputing, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 510530, Guangzhou, China.,Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, 100101, Beijing, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Kaimeng Huang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, 510530, Guangzhou, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong Provincial Key Laboratory of Biocomputing, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 510530, Guangzhou, China.,Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, 100101, Beijing, China
| | - Gongcheng Hu
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, 510530, Guangzhou, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong Provincial Key Laboratory of Biocomputing, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 510530, Guangzhou, China.,Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, 100101, Beijing, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Isaac A Babarinde
- Department of Biology, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Yaoyi Li
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, 510530, Guangzhou, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong Provincial Key Laboratory of Biocomputing, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 510530, Guangzhou, China.,Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, 100101, Beijing, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Xiaotao Dong
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, 510530, Guangzhou, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong Provincial Key Laboratory of Biocomputing, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 510530, Guangzhou, China.,Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, 100101, Beijing, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Yu-Sheng Chen
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, 100101, Beijing, China
| | - Liping Shang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, 510530, Guangzhou, China
| | - Wenjing Guo
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, 510530, Guangzhou, China
| | - Junwei Wang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, 510530, Guangzhou, China
| | - Zhaoming Chen
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, 510530, Guangzhou, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong Provincial Key Laboratory of Biocomputing, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 510530, Guangzhou, China
| | - Andrew P Hutchins
- Department of Biology, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Yun-Gui Yang
- University of Chinese Academy of Sciences, 100049, Beijing, China.,Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, 100101, Beijing, China
| | - Hongjie Yao
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, 510530, Guangzhou, China. .,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong Provincial Key Laboratory of Biocomputing, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 510530, Guangzhou, China. .,Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, 100101, Beijing, China. .,University of Chinese Academy of Sciences, 100049, Beijing, China.
| |
Collapse
|
28
|
Bian L, Nie J, Jiang X, Song M, Dong F, Shang L, Deng H, He H, Belzile N, Chen Y, Xu B, Liu X. Selective adsorption of uranyl and potentially toxic metal ions at the core-shell MFe 2O 4-TiO 2 (M=Mn, Fe, Zn, Co, or Ni) nanoparticles. J Hazard Mater 2019; 365:835-845. [PMID: 30481734 DOI: 10.1016/j.jhazmat.2018.11.076] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 10/24/2018] [Accepted: 11/17/2018] [Indexed: 06/09/2023]
Abstract
Potentially toxic metal ions (Xn+: Rb+, Sr2+, Cr3+, Mn2+, Ni2+, Zn2+, Cd2+) usually coexist with uranyl (UO2+), which will have a great influence on the selective adsorption process. Here, the core-shell MFe2O4-TiO2 (M = Mn, Fe, Zn, Co, or Ni) nanoparticles were synthesized and assessed as new selective adsorbents. The results reveal that TiO2(101) preferentially grows along the MFe2O4(311)/(111) orientation. The M2+ ions as the mediators transfer the holes from MFe2O4 to TiO2, at the conduction bands. On the TiO2(101) surfaces and TiO2(101)-TiO2(101) gaps, the paired active electrons mainly complex with water molecules as hydroxyl radicals to capture Xn+ ions, forming an ion layer to block UO22+ from being adsorbed. Simultaneously, it should be noted that an interesting adsorption pathway was UO22+ being horizontally and irreversibly adsorbed in the MFe2O4(311)/(111)-TiO2(101) interface, and therein, the stable adsorption capacity was found to be 66.78 mg g-1 in the MnFe2O4(311)/(111)-TiO2(101) interface. Finally, a mechanism of hybrid orbitals between MnFe2O4-TiO2 and UO2+-Xn+ was proposed.
Collapse
Affiliation(s)
- Liang Bian
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, South West University of Science and Technology, Mianyang, 621010, Sichuan, China; Institute of Gem and Material Technology, Hebei GEO University, Shijiazhuang, 050000, Hebei, China.
| | - Jianan Nie
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, South West University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Xiaoqiang Jiang
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, South West University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Mianxin Song
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, South West University of Science and Technology, Mianyang, 621010, Sichuan, China.
| | - Faqin Dong
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, South West University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Liping Shang
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, South West University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Hu Deng
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, South West University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Huichao He
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, South West University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Nelson Belzile
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, South West University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Yuwei Chen
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, South West University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Bing Xu
- Sichuan Civil-military Integration Institute, Mianyang, 621010, Sichuan, China
| | - Xiaonan Liu
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, South West University of Science and Technology, Mianyang, 621010, Sichuan, China
| |
Collapse
|
29
|
Hatterer E, Chauchet X, Barba L, Richard F, Moine V, Chatel L, Cons L, Ravn U, Masternak K, Fischer N, Kosco-Vilbois M, Ferlin W, Buatois V, Shang L. Targeting a membrane-proximal epitope on mesothelin increases the tumoricidal activity of a bispecific antibody blocking CD47 on tumor cells. Eur J Cancer 2019. [DOI: 10.1016/j.ejca.2019.01.053] [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: 10/27/2022]
|
30
|
Wang Y, Peng P, Shang L, Dong YA, Yang Z, Zhong H. Effects of concomitant genetic alterations on cancer patient overall survival. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy269.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
31
|
Shang L, Smith AJ, Duan L, Perkey KE, Wietgrefe S, Zupancic M, Southern PJ, Johnson RP, Carlis JV, Haase AT. Vaccine-Associated Maintenance of Epithelial Integrity Correlated With Protection Against Virus Entry. J Infect Dis 2018; 218:1272-1283. [PMID: 29401315 PMCID: PMC6455945 DOI: 10.1093/infdis/jiy062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 01/29/2018] [Indexed: 12/13/2022] Open
Abstract
To identify the mechanisms by which human immunodeficiency virus type 1 (HIV-1) might penetrate the epithelial barrier during sexual transmission to women and the mechanisms of vaccine-associated protection against entry, we characterized early epithelial responses to vaginal inoculation of simian immunodeficiency virus strain mac251 (SIVmac251) in naive or SIVmac239Δnef-vaccinated rhesus macaques. Vaginal inoculation induced an early stress response in the cervicovaginal epithelium, which was associated with impaired epithelial integrity, damaged barrier function, and virus and bacterial translocation. In vaccinated animals, early stress responses were suppressed, and the maintenance of epithelial barrier integrity correlated with prevention of virus entry. These vaccine-protective effects were associated with a previously described mucosal system for locally producing and concentrating trimeric gp41 antibodies at the mucosal interface and with formation of SIV-specific immune complexes that block the stress responses via binding to the epithelial receptor FCGR2B and subsequent inhibitory signaling. Thus, blocking virus entry may be one protective mechanism by which locally concentrated non-neutralizing Ab might prevent HIV sexual transmission to women.
Collapse
Affiliation(s)
- L Shang
- Department of Microbiology and Immunology, Medical School, Minneapolis
| | - A J Smith
- Department of Microbiology and Immunology, Medical School, Minneapolis
| | - L Duan
- Department of Microbiology and Immunology, Medical School, Minneapolis
| | - K E Perkey
- Department of Microbiology and Immunology, Medical School, Minneapolis
| | - S Wietgrefe
- Department of Microbiology and Immunology, Medical School, Minneapolis
| | - M Zupancic
- Department of Microbiology and Immunology, Medical School, Minneapolis
| | - P J Southern
- Department of Microbiology and Immunology, Medical School, Minneapolis
| | - R P Johnson
- Yerkes National Primate Research Center, Emory University, Atlanta, Georgia
| | - J V Carlis
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis
| | - A T Haase
- Department of Microbiology and Immunology, Medical School, Minneapolis
| |
Collapse
|
32
|
Chauchet X, Cons L, Chatel L, Buatois V, Shang L, Masternak K, Kosco-Vilbois M, Fischer N, Ferlin W. PO-452 Selective CD47 immune checkpoint blockade on tumour cells with bispecific antibodies to effectively control tumour growth: primary role of the phagocytes. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.473] [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: 11/03/2022] Open
|
33
|
Shang L, Smith AJ, Reilly CS, Duan L, Perkey KE, Wietgrefe S, Zupancic M, Southern PJ, Johnson RP, Carlis JV, Haase AT. Vaccine-modified NF-kB and GR signaling in cervicovaginal epithelium correlates with protection. Mucosal Immunol 2018; 11:512-522. [PMID: 28792003 PMCID: PMC5807226 DOI: 10.1038/mi.2017.69] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 06/19/2017] [Indexed: 02/04/2023]
Abstract
Cervicovaginal epithelium plays a critical role in determining the outcome of virus transmission in the female reproductive tract (FRT) by initiating or suppressing transmission-facilitating mucosal immune responses in naïve and SIVmac239Δnef-vaccinated animals, respectively. In this study, we examined the very early responses of cervical epithelium within 24 h after vaginal exposure to SIV in naive and SIVmac239Δnef-vaccinated rhesus macaques. Using both ex vivo and in vivo experimental systems, we found that vaginal exposure to SIV rapidly induces a broad spectrum of pro-inflammatory responses in the epithelium associated with a reciprocal regulation of NF-kB and glucocorticoid receptor (GR) signaling pathways. Conversely, maintenance of high-level GR expression and suppression of NF-kB expression in the epithelium were associated with an immunologically quiescent state in the FRT mucosa and protection against vaginal challenge in SIVmac239Δnef-vaccinated animals. We show that the immunologically quiescent state is induced by FCGR2B-immune complexes interactions that modify the reciprocal regulation of NF-kB and GR signaling pathways. Our results suggest that targeting the balance of NF-kB and GR signaling in early cervicovaginal epithelium responses could moderate mucosal inflammation and target cell availability after vaginal infection, thereby providing a complementary approach to current prevention strategies.
Collapse
Affiliation(s)
- L Shang
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - A J Smith
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - C S Reilly
- Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, Minnesota, USA
| | - L Duan
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - K E Perkey
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - S Wietgrefe
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - M Zupancic
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - P J Southern
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - R P Johnson
- Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
| | - J V Carlis
- Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, Minnesota, USA
| | - A T Haase
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| |
Collapse
|
34
|
Luo M, Shang L, Brooks M, Jiagge E, Zhu Y, Conley S, Fath MA, Harouaka R, Merajver SD, Spitz DR, Wicha MS. Abstract P1-02-09: Targeting breast cancer stem cell state equilibrium through modulation of redox signaling. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p1-02-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Breast cancer stem cells (BCSCs) maintain the plasticity to transition between quiescent mesenchymal- (M) and proliferative epithelial-like (E) states, but how this plasticity is regulated under metabolic/oxidative stress is poorly understood. Here, we show that M- and E-BCSCs exhibit markedly different sensitivities to the inhibitors of glycolysis and redox metabolism. Metabolic/Oxidative stress generated by 2DG/H2O2 or hypoxia promotes ROSlo M-BCSCs transition to their ROShi E-state. This transition is reversed by the antioxidant N-acetyl cysteine and facilitated by the activation of the AMPK-HIF1α axis. Moreover, E-BCSCs exhibit robust expression of NRF2/NFE2L2 and a wide variety of NRF2 downstream antioxidant responsive genes including the family of drug transporters and detoxification enzymes, NADPH production as well as the thioredoxin (TXN) and glutathione (GSH) antioxidant pathways. Suppression of NRF2 activity by a small-molecular inhibitor Trigonelline or shNRF2 mediated knockdown significantly decreased ALDH+ E- but not CD24-CD44+ M-BCSCs. This specific vulnerability of E-BCSCs to the inhibition of NRF2-mediated antioxidant defenses was also observed following inhibition of the downstream TXN and GSH antioxidant pathways, which promotes ROS-mediated differentiation and subsequent apoptosis of E-BCSCs. Co-inhibition of glycolysis and TXN/GSH pathways synergistically suppressed tumor growth and tumor initiating potential in two patient-derived xenograft models of triple negative breast cancer by eliminating both M- and E-BCSCs. Together, our studies reveal novel cellular and molecular mechanisms demonstrating how modulation of redox signaling regulates the equilibrium of two distinct BCSC states. These studies define the metabolic vulnerabilities of M- and E-BCSCs, and also provide a novel therapeutic approach to collectively target these distinct CSC states. As the CSC state equilibrium may be similarly regulated across a spectrum of tumors with diverse oncogenic drivers, this approach may have broad therapeutic applicability.
Citation Format: Luo M, Shang L, Brooks M, Jiagge E, Zhu Y, Conley S, Fath MA, Harouaka R, Merajver SD, Spitz DR, Wicha MS. Targeting breast cancer stem cell state equilibrium through modulation of redox signaling [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P1-02-09.
Collapse
Affiliation(s)
- M Luo
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI; University of Iowa, Iowa City, IA
| | - L Shang
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI; University of Iowa, Iowa City, IA
| | - M Brooks
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI; University of Iowa, Iowa City, IA
| | - E Jiagge
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI; University of Iowa, Iowa City, IA
| | - Y Zhu
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI; University of Iowa, Iowa City, IA
| | - S Conley
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI; University of Iowa, Iowa City, IA
| | - MA Fath
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI; University of Iowa, Iowa City, IA
| | - R Harouaka
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI; University of Iowa, Iowa City, IA
| | - SD Merajver
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI; University of Iowa, Iowa City, IA
| | - DR Spitz
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI; University of Iowa, Iowa City, IA
| | - MS Wicha
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI; University of Iowa, Iowa City, IA
| |
Collapse
|
35
|
Guan Z, Shang L, Zhang W, Guo Y, Xue Y, Li X, Gong Y, Liu X. A rating scale for the severity of Guillain-Barré syndrome. Acta Neurol Scand 2017; 136:680-687. [PMID: 28612931 DOI: 10.1111/ane.12786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2017] [Indexed: 01/19/2023]
Abstract
INTRODUCTION The objective of this study was to develop a rating scale to assess the severity of Guillain-Barré syndrome (GBS). METHODS The preliminary rating scale, which contained 11 items, was developed by the Delphi method, and data of 258 patients were collected to evaluate it. Item analysis was accomplished by 100 patients; the additional 158 patients were used to evaluate the reliability, validity, and discriminative ability of the rating scale. The structure of the rating scale was testified by the confirmatory factor analysis and also made a further evaluation by the correlation analysis. RESULTS The rating scale contained 10 items. The three factors mainly generalized the motor function, cranial nerve function and autonomic function. The results of reliability and validity showed that the structure of the rating scale was good (χ2 =68.25, df=32, χ2 /df=2.13, normed fit index (NFI)=0.919, non-normed fit index (NNFI)=0.936, comparative fit index (CFI)=0.96, a root mean square error of approximation (RMSEA)=0.085), and the Cronbach's α coefficient for the scale was .852, with the three dimensions ranging from .585 to .752. CONCLUSION Reliability and validity of the rating scale are all satisfied. The scale contained the main clinical presentations of GBS, and it is suitable to evaluate the severity of GBS.
Collapse
Affiliation(s)
- Z. Guan
- Department of Neurology; Xijing Hospital; Fourth Military Medical University; Xi'an China
| | - L. Shang
- Department of Health statistics; School of Public Health; Fourth Military Medical University; Xi'an China
| | - W. Zhang
- Department of Neurology; Tangdu Hospital; Fourth Military Medical University; Xi'an China
| | - Y. Guo
- Department of Neurology; Yangling Demonstration Zone Hospital; Xian yang China
| | - Y. Xue
- Department of Neurology; Xi'an Gaoxin Hospital; Xi'an China
| | - X. Li
- The Shaanxi Second Provincial People's Hospital; Xi’an China
| | - Y. Gong
- Department of Neurology; Xijing Hospital; Fourth Military Medical University; Xi'an China
| | - X. Liu
- Department of Neurology; Xijing Hospital; Fourth Military Medical University; Xi'an China
| |
Collapse
|
36
|
Qi BX, Yao H, Shang L, Sheng LP, Wang XC, Zhu L, Zhang XX, Wang JP, Fang DH. Evaluation of the role of 8-iso-PGF levels at multiple sites during intracranial hemorrhage in pediatric patients. Eur Rev Med Pharmacol Sci 2017; 21:4153-4160. [PMID: 29028082] [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: 06/07/2023]
Abstract
OBJECTIVE The present study was planned to explore the role of 8-isomeric-prostaglandinF2α (8-iso-PGF2α) levels at the multiple sites of cerebrospinal fluid in children with intracranial hemorrhage. PATIENTS AND METHODS 90 children with intracranial hemorrhage were admitted to Surgery Intensive Care Unit (SICU) of our hospital from January to December 2013 and were selected as study subjects. They were divided into group A (n=30), group B (n=30) and group C (n=30). The group A was given conventional treatment, the group B was treated with minimally invasive puncture and the group C was treated with cerebrospinal fluid decompression. After 1 d, 2 d, 3 d, and 7 d of hospitalization, enzyme-linked immunosorbent assay (ELISA) was used to detect the 8-iso-PGF2α levels in peripheral blood of children in all groups. On the day of admission and 10 d after treatment, 3 groups of children were implemented with brain nuclear magnetic resonance spectroscopy for metabolite analyses. RESULTS On the day of admission there were no significant differences in the 8-iso-PGF2α levels among group A, B and C. Further, after 1 d, 3 d, 7 d of hospital stay, the 8-iso-PGF2α levels in peripheral blood showed a gradual downward trend, and decline range of the group C was greater than that of group A and B (p < 0.05). After 10 days of treatment, there were significant differences in the bilateral temporal lobe and hippocampal NAA/Creatinine (Cr), Cho/Cr, mI/Cr and NAA/mI among group A, B, and C. The survival rate of group C was higher than that of group A and B (p < 0.05). On the other hand, the prevalence of sequelae was significantly lower than that of group A and B (p < 0.05). The amount of blood loss in children with intracranial hemorrhage was positively correlated with the levels of 8-iso-PGF2α in peripheral blood (r = 0.546, p < 0.05) as observed by Spearman correlation analysis. CONCLUSIONS 8-iso-PGF2α plays an important role in the pathogenesis of intracranial hemorrhage, and could be utilized as a biomarker of oxidative stress in children with intracranial hemorrhage. Further, cerebrospinal fluid decompression is a better method of treatment for intracranial hemorrhage.
Collapse
Affiliation(s)
- B-X Qi
- Departments of Intensive Care Unit, Xuzhou Children's Hospital, Xuzhou, Jiangsu Province, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Shang L, Qin W, Li RK, Lu W, Liu CX, Yu DX, Wang S. [An analysis of the psychological state of patients with chronic liver diseases]. Zhonghua Gan Zang Bing Za Zhi 2017; 25:623-625. [PMID: 29056014 DOI: 10.3760/cma.j.issn.1007-3418.2017.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- L Shang
- Huangshi Central Hospital, Huangshi Hubei 435000, China
| | - W Qin
- The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - R K Li
- The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - W Lu
- The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - C X Liu
- The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - D X Yu
- The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - S Wang
- The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| |
Collapse
|
38
|
Kuang G, Shan J, Xu W, Zhang Q, Liu Y, Liu D, Liu F, Lin J, Zheng G, Wu J, Zhu W, Ding B, Shang L, Xu H, Yang C, Zhou Y, Fang Y, Xie J, Wan Y. A Lower Hybrid Current Drive System on the Superconductive Tokamak HT-7. ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst99-a103] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- G. Kuang
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - J. Shan
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - W. Xu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - Q. Zhang
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - Y. Liu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - D. Liu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - F. Liu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - J. Lin
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - G. Zheng
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - J. Wu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - W. Zhu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - B. Ding
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - L. Shang
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - H. Xu
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - C. Yang
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - Y. Zhou
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - Y. Fang
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - J. Xie
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| | - Y. Wan
- Chinese Academy of Sciences Institute of Plasma Physics, P.O. Box 1126 Hefei, Anhui 230031, China
| |
Collapse
|
39
|
Abstract
MAX-phase Cr2AlC containing thin films were synthesized by magnetron sputtering in an industrial system. Nanometre-scale 3D defects are observed near the boundary between regions of Cr2AlC and of the disordered solid solution (CrAl)xCy. Shrinkage of the Cr-Cr interplanar distance and elongation of the Cr-Al distance in the vicinity of the defects are detected using transmission electron microscopy. The here observed deformation surrounding the defects was described using density functional theory by comparing the DOS of bulk Cr2AlC with the DOS of a strained and unstrained Cr2AlC(0001) surface. From the partial density of states analysis, it can be learned that Cr-C bonds are stronger than Cr-Al bonds in bulk Cr2AlC. Upon Cr2AlC(0001) surface formation, both bonds are weakened. While the Cr-C bonds recover their bulk strength as Cr2AlC(0001) is strained, the Cr-Al bonds experience only a partial recovery, still being weaker than their bulk counterparts. Hence, the strain induced bond strengthening in Cr2AlC(0001) is larger for Cr d – C p bonds than for Cr d – Al p bonds. The here observed changes in bonding due to the formation of a strained surface are consistent with the experimentally observed elongation of the Cr-Al distance in the vicinity of nm-scale 3D defects in Cr2AlC thin films.
Collapse
Affiliation(s)
- Y T Chen
- Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, 52074, Aachen, Germany.
| | - D Music
- Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, 52074, Aachen, Germany
| | - L Shang
- Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, 52074, Aachen, Germany
| | - J Mayer
- Central Facility for Electron Microscopy, RWTH Aachen University, 52056, Aachen, Germany.,Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Juelich, 52425, Juelich, Germany
| | - J M Schneider
- Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, 52074, Aachen, Germany
| |
Collapse
|
40
|
Shang L, Duan L, Perkey KE, Wietgrefe S, Zupancic M, Smith AJ, Southern PJ, Johnson RP, Haase AT. Epithelium-innate immune cell axis in mucosal responses to SIV. Mucosal Immunol 2017; 10:508-519. [PMID: 27435105 PMCID: PMC5250613 DOI: 10.1038/mi.2016.62] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 06/18/2016] [Indexed: 02/04/2023]
Abstract
In the SIV (simian immunodeficiency virus)-rhesus macaque model of HIV-1 (human immunodeficiency virus type I) transmission to women, one hallmark of the mucosal response to exposure to high doses of SIV is CD4 T-cell recruitment that fuels local virus expansion in early infection. In this study, we systematically analyzed the cellular events and chemoattractant profiles in cervical tissues that precede CD4 T-cell recruitment. We show that vaginal exposure to the SIV inoculum rapidly induces chemokine expression in cervical epithelium including CCL3, CCL20, and CXCL8. The chemokine expression is associated with early recruitment of macrophages and plasmacytoid dendritic cells that are co-clustered underneath the cervical epithelium. Production of chemokines CCL3 and CXCL8 by these cells in turn generates a chemokine gradient that is spatially correlated with the recruitment of CD4 T cells. We further show that the protection of SIVmac239Δnef vaccination against vaginal challenge is correlated with the absence of this epithelium-innate immune cell-CD4 T-cell axis response in the cervical mucosa. Our results reveal a critical role for cervical epithelium in initiating early mucosal responses to vaginal infection, highlight an important role for macrophages in target cell recruitment, and provide further evidence of a paradoxical dampening effect of a protective vaccine on these early mucosal responses.
Collapse
Affiliation(s)
- L Shang
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - L Duan
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - K E Perkey
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - S Wietgrefe
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - M Zupancic
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - A J Smith
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - P J Southern
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - R P Johnson
- Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
| | - A T Haase
- Department of Microbiology and Immunology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| |
Collapse
|
41
|
Shang L, Li X, Fan XL. [Clinical analysis of two cases of nephrotic syndrome caused by mercury folk prescription]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:774. [PMID: 28043254 DOI: 10.3760/cma.j.issn.1001-9391.2016.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
|
42
|
Zhu T, Tian Y, Zhou F, Shang L, Guo Y, Lv Y. Percutaneous kyphoplasty with or without temporary unipedicle screw reduction : A retrospective comparative study of osteoporotic vertebral fractures. Orthopade 2016; 45:607-15. [PMID: 26940825 PMCID: PMC4937075 DOI: 10.1007/s00132-016-3235-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Background Temporary unipedicle screw reduction with percutaneous kyphoplasty (TUSR-PKP) is a relatively new method for managing osteoporotic vertebral compression fractures (OVCFs). A clinical retrospective comparative study was conducted to verify whether TUSR-PKP was noninferior to simple PKP regarding the management of OVCFs. Methods A total of 38 consecutive patients who sustained OVCFs without neurological deficits and had undergone surgeries in our hospital from June 2012 to January 2014 were included in the study: 24 patients underwent simple PKP (control group) and the other 14 patients underwent TUSR-PKP (treatment group). All 38 patients were asked to participate in a long-term (>1 year) follow-up. Visual analog scale (VAS) pain scores and Oswestry Disability Index (ODI) were recorded, and the Cobb angles and the vertebral body heights were measured on the lateral radiographs before surgery and on day 1, as well as 1, 3, 6, and 12 months after surgery. Results The patients in the treatment group had better vertebral height gain and greater improvement on ODI compared with the control group (p < 0.05). The VAS scores of the two groups were similar at all points until the end of the 1‑year follow-up period. Two patients from the treatment group and 5 patients from the control group had cement leakage. In the control group, 3 patients suffered adjacent or nonadjacent vertebra fractures. Conclusion TUSR-PKP is a safe and effective surgical option for OVCFs. Compared with simple PKP, TUSR-PKP provided at least equal results for OVCFs. Moreover, during the postsurgery observations, TUSR-PKP showed potential advantages including vertebral height gain, ODI improvement, and fewer subsequent refractures.
Collapse
Affiliation(s)
- T Zhu
- Orthopedic Trauma, Peking University Third Hospital, No. 49 North Garden Road, HaiDian District, 100191, Beijing, China
| | - Y Tian
- Orthopedic Trauma, Peking University Third Hospital, No. 49 North Garden Road, HaiDian District, 100191, Beijing, China.
| | - F Zhou
- Orthopedic Trauma, Peking University Third Hospital, No. 49 North Garden Road, HaiDian District, 100191, Beijing, China.
| | - L Shang
- Orthopedic Trauma, Peking University Third Hospital, No. 49 North Garden Road, HaiDian District, 100191, Beijing, China
| | - Y Guo
- Orthopedic Trauma, Peking University Third Hospital, No. 49 North Garden Road, HaiDian District, 100191, Beijing, China
| | - Y Lv
- Orthopedic Trauma, Peking University Third Hospital, No. 49 North Garden Road, HaiDian District, 100191, Beijing, China
| |
Collapse
|
43
|
Monnet E, Shang L, Lapeyre G, deGraaf K, Hatterer E, Buatois V, Elson G, Ferlin W, Gabay C, Sokolove J, Jones S, Choy E, McInnes I, Kosco-Vilbois M, de Min C. AB0451 NI-0101, a Monoclonal Antibody Targeting Toll Like Receptor 4 (TLR4) Being Developed for Rheumatoid Arthritis (RA) Treatment with a Potential for Personalized Medicine. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3801] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
44
|
Xu JR, Shang L, Si WL, Song Y, Wang Y, Ma JL, Liu J. A population-based study of associations between functional gastrointestinal disorders and psychosocial characteristics in Xi'an, China. Neurogastroenterol Motil 2013; 25:617-e467. [PMID: 23552020 DOI: 10.1111/nmo.12124] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 03/04/2013] [Indexed: 12/20/2022]
Abstract
BACKGROUND Functional gastrointestinal disorders (FGIDs) are disorders with chronic and recurring gastrointestinal symptoms. This study investigated the prevalence of FGIDs, assessed the association between FGIDs and psychosocial factors, and identified potential risk factors for FGIDs in a population in Xi'an, China. METHODS Of 752 recruited residents in Xi'an, 720 were selected for an epidemiological survey using a cluster sampling method. All subjects were interviewed face-to-face to complete the Chinese version of ROME III FGIDs questionnaire, the Symptom Check-List-90, the Eysenck Personality Questionnaire, a Life Event Scale, and a questionnaire regarding personal childhood adversity. The prevalence of FGIDs and associations between FGIDs and psychosocial factors were determined using EpiData Software. Logistic regression analysis was performed to identify the potential risk factors for FGIDs. KEY RESULTS The prevalence of FGIDs in this sample population was 14.3% (103/720). There were 13 (1.8%) cases of overlap of different FGIDs. No significant difference in the prevalence of FGIDs was observed between men and women. Alcohol intake and smoking habits were significantly associated with the presence of FGIDs. The presence of FGIDs was significantly associated with psychological factors and influences such as personality type, life events, childhood adversity, and psychopathology. The potential risk factors for contracting FGIDs were certain life events, childhood adversity, somatization, and a hostile affect (P < 0.001). CONCLUSIONS & INFERENCES The prevalence of FGIDs and overlap syndrome in Xi'an, China was lower than that reported in other countries. There was a strong correlation between specific lifestyle habits and psychosocial characteristics and the presence of FGIDs.
Collapse
Affiliation(s)
- J-R Xu
- Department of Gastroenterology, Xi'an Central Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shanxi, China.
| | | | | | | | | | | | | |
Collapse
|
45
|
Yang L, Gao F, Shang L, Zhan J, McDonald BA. Association between virulence and triazole tolerance in the phytopathogenic fungus Mycosphaerella graminicola. PLoS One 2013; 8:e59568. [PMID: 23555044 PMCID: PMC3598747 DOI: 10.1371/journal.pone.0059568] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Accepted: 02/19/2013] [Indexed: 01/28/2023] Open
Abstract
Host resistance and synthetic antimicrobials such as fungicides are two of the main approaches used to control plant diseases in conventional agriculture. Although pathogens often evolve to overcome host resistance and antimicrobials, the majority of reports have involved qualitative host - pathogen interactions or antimicrobials targeting a single pathogen protein or metabolic pathway. Studies that consider jointly the evolution of virulence, defined as the degree of damage caused to a host by parasite infection, and antimicrobial resistance are rare. Here we compared virulence and fungicide tolerance in the fungal pathogen Mycosphaerella graminicola sampled from wheat fields across three continents and found a positive correlation between virulence and tolerance to a triazole fungicide. We also found that quantitative host resistance selected for higher pathogen virulence. The possible mechanisms responsible for these observations and their consequences for sustainable disease management are discussed.
Collapse
Affiliation(s)
- Lina Yang
- Key Lab for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
- Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | - Fangluan Gao
- Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | - Liping Shang
- Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | - Jiasui Zhan
- Key Lab for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
- Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | | |
Collapse
|
46
|
Jiang X, Zhang YH, Li Y, Ma X, Zhu YSH, Shang L. Reference charts and equations of fetal biometry for normal singleton pregnant women in Shaanxi, China. CLIN EXP OBSTET GYN 2013; 40:393-398. [PMID: 24283173] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To construct reference charts and equations of fetal biometry for singleton pregnant women in Shaanxi, China. MATERIALS AND METHODS This was a cross-sectional study involving 6,832 singleton pregnant women. One set of fetal ultrasonographic measurement data between the 16th to 41st gestational weeks (GW) was randomly selected from each pregnant woman, and biparietal diameter (BPD), abdominal circumference (AC), and femur length (FL) were recorded. Mean and standard deviation (SD) of BPD, AC, and FL were fitted by polynomial. Centile = Mean + Z(alpha) x SD was used to calculate centiles. Differences in the 50th centile of BPD, AC, and FL between Hong Kong, Korean, Italian and Shaanxi fetuses were compared. RESULTS Mean of BPD, AC, and FL were well-fitted by quadratic polynomial, SD of BPD, AC and FL were fitted by linear regression. Equations for estimating mean and SD for BPD, AC, and FL from GW were obtained. Centiles for BPD,AC, and FL were calculated. From the 21st GW, the differences in BPD,AC, and FL between Hong Kong, Korean, Italian, and Shaanxi fetuses became larger. CONCLUSION Fetal biometry reference charts and equations for estimating fetal size and GW could be used in obstetrics practice and research in Shaanxi, China.
Collapse
Affiliation(s)
- X Jiang
- Department of Paediatrics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | | | | | | | | | | |
Collapse
|
47
|
Smith AJ, Wietgrefe SW, Reilly CS, Southern PJ, Duan L, Perkey KE, Shang L, Johnson R, Haase AT. Immune complexes can dampen inflammatory signaling at the mucosal surface during protective SIV vaccination. Retrovirology 2012. [PMCID: PMC3441872 DOI: 10.1186/1742-4690-9-s2-o19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
|
48
|
Zhan J, Yang L, Zhu W, Shang L, Newton AC. Pathogen populations evolve to greater race complexity in agricultural systems--evidence from analysis of Rhynchosporium secalis virulence data. PLoS One 2012; 7:e38611. [PMID: 22723870 PMCID: PMC3377678 DOI: 10.1371/journal.pone.0038611] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Accepted: 05/08/2012] [Indexed: 11/19/2022] Open
Abstract
Fitness cost associated with pathogens carrying unnecessary virulence alleles is the fundamental assumption for preventing the emergence of complex races in plant pathogen populations but this hypothesis has rarely been tested empirically on a temporal and spatial scale which is sufficient to distinguish evolutionary signals from experimental error. We analyzed virulence characteristics of ≈ 1000 isolates of the barley pathogen Rhynchosporium secalis collected from different parts of the United Kingdom between 1984 and 2005. We found a gradual increase in race complexity over time with a significant correlation between sampling date and race complexity of the pathogen (r(20) = 0.71, p = 0.0002) and an average loss of 0.1 avirulence alleles (corresponding to an average gain of 0.1 virulence alleles) each year. We also found a positive and significant correlation between barley cultivar diversity and R. secalis virulence variation. The conditions assumed to favour complex races were not present in the United Kingdom and we hypothesize that the increase in race complexity is attributable to the combination of natural selection and genetic drift. Host resistance selects for corresponding virulence alleles to fixation or dominant frequency. Because of the weak fitness penalty of carrying the unnecessary virulence alleles, genetic drift associated with other evolutionary forces such as hitch-hiking maintains the frequency of the dominant virulence alleles even after the corresponding resistance factors cease to be used.
Collapse
Affiliation(s)
- Jiasui Zhan
- Key Lab for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China.
| | | | | | | | | |
Collapse
|
49
|
Le A, Shang L, Xiao T, Zhuo R, Wang Z. Pheochromocytoma in ectopic pregnancy: a case report. CLIN EXP OBSTET GYN 2012; 39:553-555. [PMID: 23444769] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To study pregnancy characteristics in women with pheochromocytoma and to improve awareness of this comorbidity among obstetricians and gynecologists. METHODS The diagnosis and treatment of a case of ectopic pregnancy with pheochromocytoma is described. RESULTS The patient was diagnosed with a ruptured left Fallopian tube isthmus due to pregnancy, with comorbid left adrenal pheochromocytoma. CONCLUSION Ectopic pregnancy with heavy bleeding and elevated blood pressure is indicative of pheochromocytoma. Measurement of the levels of urinary vanillylmandelic acid and urinary and serum catecholamines, as well as ultrasonography, can help diagnose this comorbidity.
Collapse
Affiliation(s)
- A Le
- Department of the Gynaecology, The affiliated Shenzhen Nanshan People's Hospital, Guangdong Medical College, Shenzhen, China.
| | | | | | | | | |
Collapse
|
50
|
Huo X, Ren L, Shang L, Wang X, Wang J. Effect of WT1 antisense mRNA on the induction of apoptosis in ovarian carcinoma SKOV3 cells. EUR J GYNAECOL ONCOL 2011; 32:651-656. [PMID: 22335028] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
PURPOSE To study the effect of WT1 antisense oligodeoxynucleotide (ASODN) transfection on the proliferation and apoptosis of SKOV3 cells. METHODS There were four groups in our study: normal control group, WT1 ASODN group, WT1 SODN group and lipofectamine group. Cell apoptosis was observed by flow cytometry. The effect of WT1 ASODN on cell proliferation was assayed by the MTT method. RT-PCR and Western blot were used to detect the expression level of WT1 mRNA and protein. RESULTS The growth of the ovarian cancer cell line SKOV3 became significantly slower and its activity was reduced after being transfected by WT1 ASODN, with the inhibition rate of 49.48%. WT1 antisense phosphorothioate oligonucleotides did not only inhibit cell proliferation, arrest cell cycle at G0-G1 checkpoint and induce apoptosis in SKOV3 ovarian carcinoma cells, but also downregulated WT1 mRNA and protein expression, which contributed to the apoptosis (p < 0.05). CONCLUSION WT1 antisense phosphorothioate oligonucleotides could both inhibit the proliferation and induce the apoptosis in SKOV3 ovarin carcinoma cell lines. Antisense oligonucleotides of WT1 may potentially help with the gene therapy of ovarian carcinoma.
Collapse
Affiliation(s)
- X Huo
- Department of Obstetrics and Gynecology, Beijing General Hospital of Beijing Military Command, Beijing China
| | | | | | | | | |
Collapse
|