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Jing J, Xu D, Li Z, Wang J, Dai J, Li FS. Genetic variation of six specific SNPs of chronic obstructive pulmonary disease among Chinese population. Pulmonology 2024; 30:113-121. [PMID: 35501282 DOI: 10.1016/j.pulmoe.2022.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a chronic bronchitis (or) emphysema with a high disability and fatality rate. This study aimed to explore the correlation between the six selected single nucleotide polymorphisms (SNPs) and the risk of COPD in the Chinese population. METHODS The Agena MassARRAY platform was used to select six SNPs from 629 subjects for genotyping. The correlation between SNPs and COPD risk was evaluated using calculated odds ratios (ORs) and 95% confidence intervals (CIs). Multi-factor dimensionality reduction (MDR) was performed to analyze the impact of SNP interactions on COPD risk. Multiple comparisons were performed using Bonferroni- correction. RESULTS Our results indicated that rs4719841 and rs7934083 variants were associated with a reduced risk of COPD. The analysis results of age, gender and non-smokers showed that rs4719841 and rs7934083 were associated with reducing the risk of COPD. In addition, the results showed that the genetic models of rs4719841, rs7934083 and rs7780562 were related to the forced vital capacity, respiratory rate per second, and respiratory rate / forced vital capacity of COPD patients, respectively. The results of the MDR analysis showed that the three-locus model (rs4719841, rs7934083, and rs78750958) is the best for COPD risk assessment. CONCLUSION This study shows that rs4719841 and rs7934083 are associated with the risk of COPD in the Chinese population, which provides some insights for early screening, prevention, and diagnosis of COPD in high-risk populations.
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Affiliation(s)
- J Jing
- The Fourth Clinical Medical College of Xinjiang Medical University, China; The COPD Laboratory of Clinical Research Base, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China
| | - D Xu
- The COPD Laboratory of Clinical Research Base, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China
| | - Z Li
- The COPD Laboratory of Clinical Research Base, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China
| | - J Wang
- The Clinical Research Base Laboratory, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China
| | - J Dai
- The Fourth Clinical Medical College of Xinjiang Medical University, China
| | - F S Li
- The COPD Laboratory of Clinical Research Base, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China; The Clinical Research Base Laboratory, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China.
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Yang B, Liu Y, Zhang G, Dai J, Men K. Prediction of Anatomical Presentation during Radiotherapy of Nasopharyngeal Carcinoma Using GAN-LSTM for Plan Adaption Decision. Int J Radiat Oncol Biol Phys 2023; 117:S156-S157. [PMID: 37784393 DOI: 10.1016/j.ijrobp.2023.06.581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) During treatment, patients frequently undergo anatomical changes that might result in dose degradation. Adaptive radiation therapy (ART) is now available to overcome this problem. However, this method is time-consuming, and the lack of criteria to trigger replanning prevents its widespread use. To overcome these obstacles, anatomical presentation models are necessary. In this study, we developed a novel deep-learning method to make a series of predictions for the remaining treatment course. MATERIALS/METHODS Total 230 nasopharyngeal carcinoma patients who received radiotherapy in 33 fractions were enrolled. The data included cone-beam computed tomography (CBCT) and planning CT images. CBCT image quality was improved to CT level using an in-house software. A generative adversarial network-long short-term memory network model was proposed, with the generation abilities of the former network and forecasting abilities of the latter. To predict the anatomical presentation for 3-6 weeks, we trained four models. The planning CT and CBCT acquired earlier were used as the input. Physicians segmented the gross target volume (GTVnx) and parotid glands on prediction and real CBCT (ground truth). Contours, dosimetry parameters, and plan adaptation decision were used to evaluate the models. RESULTS The table shows the overall performance of the test set (18 cases). The anatomical changes were predicted over the treatment course with a dice similarity coefficient (DSC) of 0.96, 0.90 and 0.92 and mean distance to agreement (MDA, in mm) of 0.37, 0.70, and 0.60 for GTVnx, left parotid, and right parotid, respectively. Bland-Altman analysis revealed that dosimetry parameters did not show significant difference between prediction and ground truth. The prescription coverage (%) of GTVnx, V30 of the left parotid, and V30 of the right parotid had mean absolute biases of 0.09, 1.09, and 0.27, respectively. At week 6, there were two cases that required plan adaptation, and the model effectively triggered replanning one week in advance. CONCLUSION We developed a framework that predicts the anatomical changes occurring in future fractions. Establishing such a framework provides a proactive approach to ART and saves clinical time by anticipating and preparing for treatment strategies in advance.
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Affiliation(s)
- B Yang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - G Zhang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Dai
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - K Men
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Chen XQ, Zhang S, Gou X, Zeng N, Duan B, Wang H, Dai J, Shen K, Zhong R, Tian R, Chen N, Yan D. Tumor Treatment Response Assessed During the Concurrent Chemoradiotherapy for Nasopharyngeal Patients. Int J Radiat Oncol Biol Phys 2023; 117:e652-e653. [PMID: 37785939 DOI: 10.1016/j.ijrobp.2023.06.2078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To evaluate intratumoral treatment response distribution with using FDG-PET/CT during the chemoradiotherapy of nasopharyngeal patients (NPC). MATERIALS/METHODS A total of 5 of 30 patients with stage III-IVA NPC were enrolled in the institutional protocol for induction/concurrent chemoradiotherapy with radiation dose of 70 Gy in 33 fractions. For each patient, a pre-radiation treatment FDG-PET/MRI image (SUV0) and a mid-treatment image (SUVm) at the treatment dose of 31.8 Gy were obtained. Followed by deformable PET/MRI registration between SUV0 and SUVm, the tumor voxel SUV reduction ratio was obtained to construct a tumor dose response matrix (DRM). Tumor SUVavid was also constructed by limiting tumor voxel SUVm > a given value. Spatial correlations of the tumor SUV0, SUVm, SUVavid and DRM were determined. RESULTS The mean and coefficient variation (CV) of the SUV0, SUVm and DRM for all tumors were 5.05 (52%), 2.72 (49%) and 0.64 (63%) (Table contains the individual data), which were smaller than those on the SUVs of head-n-neck HPV+ patients reported previously due to the induction chemotherapy, but had much larger DRM mean and CV. The inter-tumoral CVs of SUV0 and DRM were 29% and 27%, which were much lower than those of the intra-tumoral CVs 43% and 57%. Meanwhile, the intra-tumoral variations on SUV0 was smaller than the one of head-neck HPV+ patients, but the DRM intra-variation was much larger. There was a weak correlation between SUV0 and SUVm with the correlation coefficient 0.13, a medium correlation of -0.55 between SUV0 and DRM, but a strong correlation, 0.72, between SUVm and DRM. However, the spatial correlation between tumor DRM and SUVavid was getting weaker as the SUVavid value increasing and equal 0.47 with SUVavid value > 3. CONCLUSION The spatial dose response DRM for NPC in the concurrent chemoradiotherapy was relatively high, while had relatively low baseline tumor metabolic activity SUV0. It was most likely due to the induction chemotherapy. In addition, the tumor dose response showed vary large intra-tumoral variation. The high correlations between DRM and SUVm imply that SUVavid could be used partially to guide adaptive modification of NPC treatment with carefully selected boundary value.
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Affiliation(s)
- X Q Chen
- Radiotherapy Physics and Technology Center, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - S Zhang
- Department of Head and Neck Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - X Gou
- Radiotherapy Physics and Technology Center, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - N Zeng
- Department of Head and Neck Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - B Duan
- Department of Head and Neck Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - H Wang
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - J Dai
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - K Shen
- Radiotherapy Physics and Technology Center, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - R Zhong
- Radiotherapy Physics and Technology Center, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - R Tian
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - N Chen
- Department of Head and Neck Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - D Yan
- Radiotherapy Physics and Technology Center, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Beaumont Health, Royal Oak, MI
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Dai J, Zhou FX, Xu H, Jiang CQ, Wang WB, Jiang HG, Wang QY, Wang Y, Xia L, Wu H, Peng J, Wei Y, Luo M, Tang F, Yang L, Hu H, Huang TH, Jiang DZ, Wang DJ, Wang XY. Efficacy and Safety of High-Dose Vitamin C Combined with Total Neoadjuvant Chemoradiotherapy in Locally Advanced Rectal Cancer (HCCSC R02 Study). Int J Radiat Oncol Biol Phys 2023; 117:e291-e292. [PMID: 37785075 DOI: 10.1016/j.ijrobp.2023.06.1287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Forpatients with locally advanced rectal cancer (LARC), the standard treatment is fluoropyrimidine (FU) -based neoadjuvant chemoradiotherapy (NCRT) combined with curative surgery. The CAO/ARO/AIO-04 trial and FORWARC trial reported that the addition of oxaliplatin to FU -based NCRT contributed to improve pathologic complete response (pCR), nevertheless, increased the acute therapeutic toxicity. Some studies showed that vitamin C (VitC) had potential benefits on anti-tumor therapy and anti-inflammatory response. Therefore, we conducted this HCCSC R02 study to explore the efficacy and safety of adding a high-dose intravenous VitC to mFOLFOX6/XELOX -based NCRT in LARC. MATERIALS/METHODS HCCSCR02 study was designed as a prospective, single-center phase II trial, which including pts aged 18-75 years with stage II/III rectal adenocarcinoma, distance from anus ≤12cm. The enrollment criteria included: staged with MRI as cT3/cT4 or cN1/2, or mesorectal fascia involvement (MRF+), or difficult to preserve the anus. Patients with glucose-6-phosphate dehydrogenase enzyme(G6PD) deficiency were excluded. Pelvic intensity modulated radiation therapy (IMRT) was given in 45-50.4Gy/25-28 fractions. Concurrently, two cycles of chemotherapy (mFOLFOX6 or XELOX) were administered during IMRT, as well as intravenous VitC (24g) delivered daily after the end of each radiation therapy. Additional 2-3 cycles of mFOLFOX6 / XELOX were adopted between the completion of radiotherapy and surgery. The primary endpoint was pCR rate. The secondary endpoints included radiation-related toxicities, overall survival (OS) and disease-free survival (DFS). This study is still recruiting. RESULTS From May 15, 2021 to Feb 8, 2023, 19 pts were recruited and finished all the scheduled NCRT, of which the proportion of cT4, cT3, cN2, cN1 were 31.6%, 63.2%, 52.6%, 36.8%, respectively. In addition, 10 pts (52.6%) were diagnosed as MRF+ initially, and 8 pts (42.1%) had a lower primary tumor(≤5cm) who were considered difficult for anal preservation before NCRT. All subjects enrolled were confirmed to be proficient mismatch repair (pMMR). As a result, 18 pts underwent a total mesorectal excision (TME) all with R0-resection, and 8 pts were evaluated as pCR (44.4%, 8/18, confidence interval: 0.246-0.663), 11 as major pathological response rate (MPR) (61.6%, 11/18), respectively. The anus preservation rate in patients with lower diseases was 87.5% (7/8). One case accepted a watch-and-wait strategy because of clinical complete response (cCR). Overall, grade 3 toxicities were observed in 4 pts, including 3 leucopenia (15.8%, 3/19), 2 neutropenia (10.5%, 2/19) and 1 diarrhea (5.3%, 1/19). No grade 4 adverse event was observed. CONCLUSION The addition of high-dose VitC to the mFOLFOX6/XELOX-based NCRT in LARC showed a promising pCR, well tolerance, particularly low rate of diarrhea, thus warrants further investigation. CLINICAL TRIAL INFORMATION NCT04801511.
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Affiliation(s)
- J Dai
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - F X Zhou
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - H Xu
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - C Q Jiang
- Department of Colorectal and Anal Surgery, Low Rectal Cancer Diagnosis and Treatment Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - W B Wang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - H G Jiang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Q Y Wang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Y Wang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - L Xia
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - H Wu
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - J Peng
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Y Wei
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - M Luo
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - F Tang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - L Yang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - H Hu
- Department of Colorectal and Anal Surgery, Low Rectal Cancer Diagnosis and Treatment Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - T H Huang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - D Z Jiang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - D J Wang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - X Y Wang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China
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Liu Y, Yang B, Chen X, Zhu J, Yuan S, Dai J, Men K. More Efficient Auto-Segmentation Framework Using Patient-Specific Information for CBCT-Guided Adaptive Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:S87. [PMID: 37784593 DOI: 10.1016/j.ijrobp.2023.06.411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Accurate and fast delineation of regions of interest (ROIs) is critical for online adaptive radiotherapy (ART). Due to the noise, artifacts and low contrast of soft tissue on cone-beam computed tomography (CBCT), the CBCT-guided ART (CBCTgART) needs an effective tool to assist the segmentation of ROIs. This study aims to develop an efficient auto-segmentation workflow with personalized modeling for CBCTgART based on deep learning (DL) model. MATERIALS/METHODS Five hundred fifty-two patients with nasopharyngeal carcinoma were enrolled in this study. At the beginning, a cycle consistent adversarial network (CycleGAN) model was trained on 172 patients' CBCT/CT paired images to improve the image quality of CBCT to CT level. A generalized segmentation model was trained using the planning CT (pCT) and contour data from 530 patients. For personalized modeling, the generalized segmentation model was fine-tuned on the specific patient's pCT and contour to get the personalized model. When CBCT images were available, the trained CycleGAN model transformed the CBCT to synthetic pCT. Then the personalized auto-segmentation model generated the contour of ROIs on the synthetic pCT. We randomly selected 22 patients for model test. The proposed method (DL-personalized) was compared with other DL methods based on the same architecture of network: regular deep learning method (DL-regular), which was trained on the CBCT and corresponding contours, and generalized model in our framework (DL-generalized). So, 22 personalized, 1 generalized and 1 regular DL models were tested. The paired t-test was performed to test the significance for mean dice similarity coefficient (DSC), mean distance to agreement (MDA), and Hausdorff distance (HD) between the alternative and proposed methods. RESULTS Two ROIs were included: the clinical target volume (CTV) and nasopharynx gross tumor volume (GTVnx). The proposed DL-personalized model achieved better results compared with others as shown in the table. The accuracy and robustness of our proposed framework was reliable. All of p values were under 0.01, which indicated the statistically significant difference. CONCLUSION The proposed framework utilizing patient-specific information can improve the segmentation accuracy of ART. This method has potential to be integrated into the ART workflow to improve efficiency.
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Affiliation(s)
- Y Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - B Yang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Chen
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Zhu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - S Yuan
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Dai
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - K Men
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Wang J, Han F, Yang Y, Ma Y, Wu Y, Han Z, Xie X, Dai J, Bi N, Wang L. Effect of Segmental Abutting Esophagus-Sparing Technique to Reduce Severe Esophagitis in Limited-Stage Small-Cell Lung Cancer Patients Treated with Concurrent Hypofractionated Thoracic Radiation and Chemotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e70-e71. [PMID: 37786054 DOI: 10.1016/j.ijrobp.2023.06.802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To evaluate the effect of segmental abutting esophagus-sparing (SAES) radiotherapy to reduce severe (G3+) acute esophagitis from 20% to 5% in patients with limited-stage small cell lung cancer (LS-SCLC) treated with concurrent chemoradiotherapy. MATERIALS/METHODS Patients with a clinical target volume (CTV) ≤1 cm close to the esophagus were enrolled in the experimental arm (45 Gy in 3 Gy daily fractions in 3 weeks) of an ongoing phase III randomized clinical trial (NCT02675088), which enrolled patients with histologically confirmed SCLC and clinically staged as LS or I-IIIB (AJCC 7th). This trial was designed to determine whether HYPO TRT (45 Gy in 3 Gy QD, experimental arm) has the same efficacy as CF TRT (60 Gy in 2 Gy QD, controlled arm) in patients with LS-SCLC. The whole esophagus was divided into the involved esophagus and abutting esophagus (AE) to receive different dose limitations according to the distance from the edge of the CTV. The primary endpoint was grade ≥ 3 acute esophagitis. RESULTS From 1 May 2021 to 30 April 2022, 30 patients were enrolled and completed four cycles of planned chemotherapy and radiotherapy. Our patient population was predominantly male (66.7% men vs. 33.3% women), with a median age of 62 years. A majority of patients presented with Stage N2-3 (90.0%) and T2-4 (76.7%), in which 4 patients had ultracentral-located primary tumors. With the SAES technique, all dosimetric parameters were significantly reduced for the whole esophagus and AE. The maximal and mean dose of the esophagus (47.4±1.9 Gy and 13.5 ± 5.8 Gy, respectively) and AE (42.9±2.3 Gy and 8.6 ± 3.6 Gy, respectively) in the SAES plan were significantly lower than those (esophagus 48.0±1.9 Gy and 14.7± 6.1 Gy, AE 45.1±2.4 Gy and 9.8± 4.2 Gy, respectively) in the non-SAES plan. After the follow-up of more than 7 months (range, 7.0-18.1 months) for all patients, only one patient (3.3%, 95% CI 0.1%-17.2%) experienced grade 3 acute esophagitis and no grade 4-5 acute esophagitis happened (Table 3). For late toxicities, one patient suffered sustained grade 1 late esophagitis and all others had no symptoms of esophagitis. The rate of radiation pneumonitis was very low, with one grade 3 event and no grade 4-5 event. Twelve (40.0%) patients had G3+ hematologic toxic events, including 2 patients with febrile neutropenia. The 1-year OS, LRFS, DMFS and PFS was 96.4%, 88.7%, 78.4% and 64.3%, respectively. No patient developed local recurrence in the abutting esophagus-sparing region. CONCLUSION SAES radiotherapy has significant dosimetric advantages compared with standard radiotherapy, which are successfully translated into clinical benefits for patients with LS-SCLC treated with 45 Gy in 3 Gy daily fractions. This may facilitate dose escalation for TRT in LS-SCLC patients.
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Affiliation(s)
- J Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China
| | - F Han
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Yang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Ma
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China
| | - Y Wu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Han
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Xie
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - J Dai
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - N Bi
- Cancer Hospital Academy of Medical Sciences, Beijing, China
| | - L Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, Beijing, China
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Song Y, Dai J, Liu Q, Wang J, Wang H, Gou X, Xiao Q, Wang H, Zhong R, Xu F, Li Y, Tian R, Yan D. Tumor Treatment Response Assessed During the Chemo-Radiotherapy for Locally Advanced NSCLC. Int J Radiat Oncol Biol Phys 2023; 117:e720. [PMID: 37786103 DOI: 10.1016/j.ijrobp.2023.06.2227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To evaluate the capability of assessing intratumoral treatment response distribution with using FDG-PET/CT during the chemoradiotherapy of locally advanced NSCLC. MATERIALS/METHODS Twelve of total 50 patients with stage III NSCLC were enrolled in the institutional protocol for concurrent chemoradiotherapy with treatment dose of 54-60 Gy in 27-30 fractions. For each patient, a pre-treatment FDG-PET/CT image (SUV0) and a mid-treatment image (SUVm) obtained within the treatment dose of 24 ∼ 46 Gy were obtained. Followed by deformable PET/CT registration between SUV0 and SUVm, the tumor voxel SUV reduction ratio was obtained to construct a tumor dose response matrix (DRM). Tumor SUVavid was also constructed by limiting tumor voxel SUVm > a given value. Spatial correlations of the tumor SUV0, SUVm, SUVavid and DRM were determined. RESULTS The mean and coefficient variation (CV) of the SUV0, SUVm and DRM for all tumors were 6.56(64%), 2.82(59%) and 0.52(70%) (Table contains the individual data), which were like those on the SUVs and the mean DRM of head-neck HPV- patients reported previously, but much larger on the DRM variation. The inter-tumoral CVs of SUV0 and DRM were 17% and 43%, which were much smaller than those of the intra-tumoral CVs 61% and 55%. Meanwhile, the intra-tumoral variations on both SUV0 and DRM were much larger than those of head-neck HPV- patients. There was a weak correlation between SUV0 and SUVm with the correlation coefficient 0.32, a medium correlation of -0.51 between SUV0 and DRM; 0.58 between SUVm and DRM. It implies that the rule of tumor dose response DRM on treatment modification decision cannot be fully replaced by either SUV0 or SUVm. The spatial correlation between tumor DRM and SUVavid was 0.23 with SUVavid value > 3, which was getting weaker when increasing SUVavid value. CONCLUSION Spatial dose response for NSCLC assessed using FDG-PET/CT feedback demonstrated high treatment resistant patterns, which had a large intra-tumoral variation. In addition, the medium correlations of DRM vs SUV0 and DRM vs SUVm imply that all these factors could be used to guide adaptive modification of NSCLC treatment.
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Affiliation(s)
- Y Song
- Radiotherapy Physics and Technology Center, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - J Dai
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Q Liu
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - J Wang
- Lung cancer center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - H Wang
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - X Gou
- Radiotherapy Physics and Technology Center, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Q Xiao
- Radiotherapy Physics and Technology Center, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - H Wang
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - R Zhong
- Radiotherapy Physics and Technology Center, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - F Xu
- Lung cancer center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Li
- Lung cancer center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - R Tian
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - D Yan
- Tumor Adaptive Treatment Research Group, West China Hospital, Sichuan University, Chengdu, China
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8
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Zhong S, Liu Y, Fang H, Tang P, Dai J, Shou J, Li Y. Ten-Year Outcomes of Hypofractionated (45 Gy in 9 Fractions) Intensity Modulated Radiotherapy for Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e455-e456. [PMID: 37785461 DOI: 10.1016/j.ijrobp.2023.06.1645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) We reported 10-year outcomes of localized prostate cancers treated with hypofractionated intensity-modulated radiotherapy of 45 Gy in 9 consecutive fractions. MATERIALS/METHODS From October 2011 to April 2017, thirty patients with localized prostate cancer were enrolled in this prospective trial. The median age of the patients was 72.5 years. According to NCCN recurrence risk criteria, eight patients were at low-risk group, 17 at intermediate risk group, 5 at high-risk group. All patients were treated with hypofractionated intensity-modulated radiotherapy (IMRT) of 45 Gy in 9 consecutive fractions to their prostate with or without seminal vesicles. Before radiotherapy, three gold fiducials were implanted into the prostate. In order to reduce the rectal high dose irradiation volume, an inflated rectal balloon was placed in the rectum at simulation and every treatment and patients were treated with comfortable full bladder. Static Intensity-modulated radiotherapy (SIMRT) was applied in 1 patient, Volumetric Modulated Arc Therapy (VMAT) in 27 patients, and tomotherapy in 2 patients. Image guided radiotherapy (IGRT) with gold fiducial registration was adopted. Twenty-six patients also received androgen deprivation therapy (ADT). The median time of ADT was 6 months. Progression⁃free survival (PFS) and overall survival (OS) were analyzed using Kaplan-Meier analysis. All grade ≥1 genitourinary (GU) and gastrointestinal (GI) toxicities were recorded using Common Terminology Criteria for Adverse Event version 5.0 (CTCAE 5.0) and Radiation Therapy Oncology Group (RTOG) late morbidity criteria, and GU and GI toxicities were cumulatively calculated. RESULTS After a median follow-up of 102 months (65∼131 months), the 10-year OS was 90.0% (95% confidence interval, 83.3%-96.7%), and the 10-year PFS was 86.5% (95% confidence interval, 79.1%-93.9%). According to CTCAE 5.0, grade 1 acute gastrointestinal (GI) toxicity developed in 12 patients, grade 2 in 2 patients, grade 3 in 2 patients, and grade 1 acute genitourinary (GU) toxicity developed in 12 patients, grade 2 in 2 patients, and no grade 3 or higher toxicity occurred. According to RTOG late morbidity criteria, late (≥3 months after radiotherapy) grade 1 GI toxicity developed in 4 patients (13.3%), grade 2 in 1 (3.3%), grade 3 in 1 (3.3%), and late grade 1 GU toxicity occurred in 1 patient (3.3%), grade 2 in 1 (3.3%), grade 3 in 1 (3.3%). No grade 4 or higher GI and GU toxicities developed. Only one grade 3 GI and one grade 2 GU toxicities were observed for the maximum toxicity at the last follow-up. The potency was not evaluated. CONCLUSION The 10-year oncologic outcomes of this shortened hypofractionated IMRT regimen for mainly low/intermediate risk prostate cancer patients is favorable with acceptable acute and late toxicities.
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Affiliation(s)
- S Zhong
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - H Fang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - P Tang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Dai
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Shou
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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9
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Dai J, Liu WB, Wang C, Deng HF, Yan HF, Ding CG. [Evaluation of the determination of hydrogen sulfide in the air of workplace by the detection tube method]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:676-680. [PMID: 37805428 DOI: 10.3760/cma.j.cn121094-20220824-00420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To evaluate the accuracy and applicability of detection tube method for quantitative detection of hydrogen sulfide in workplace air. Methods: In September 2021, the lower limit of quantification, accuracy, precision, environmental factors, interfering gases and other performance indicators of the method for determining hydrogen sulfide in the air of workplace were verified by the detection tube, and the results were compared with those of GB 11742-89 "Standard method for hygienic examination of hydrogen sulfide in air of residential areas-methylene blue spectrophotometric method" to evaluate the application effect of the detection tube method for quantitative detection of hydrogen sulfide in workplace air. Results: There was no significant difference in the results of 2.83 mg/m(3), 4.25 mg/m(3) and 17.00 mg/m(3) hydrogen sulfide concentration between the two methods (P>0.05) , but there was significant difference in the results of 8.50 mg/m(3) concentration (P<0.05) . The lower limit of quantification of hydrogen sulfide in workplace air was 2.83 mg/m(3), the accuracy was 96.0%-111.0%, and the precision was 0.70%-6.64%. Under the condition of 4 ℃, the measured results decreased by 3.39%-13.10%. When the humidity was 50%-80%, the relative error of the average measured value was -1.67%-4.44%. Interference gases that may exist in the workplace (including carbon dioxide, carbon monoxide, mercaptans, nitrogen oxides, sulfur dioxide, etc.) did not interfere with the results of the test tube. Conclusion: The accuracy and precision of the detection tube method meet the detection requirements. The method is simple, rapid and easy to be popularized, and can be used for the rapid detection of hydrogen sulfide gas concentration in the workplace.
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Affiliation(s)
- J Dai
- Occupational Hazard Identification and Analysis Center, National Center for Occupational Safety and Health, NHC, Beijing 102308, China NHC Key Laboratory for Engineering Control of Dust Hazard, Beijing 102308, China
| | - W B Liu
- Occupational Hazard Identification and Analysis Center, National Center for Occupational Safety and Health, NHC, Beijing 102308, China NHC Key Laboratory for Engineering Control of Dust Hazard, Beijing 102308, China
| | - C Wang
- Beijing Gastec Co., Ltd, Beijing 100029, China
| | - H F Deng
- Beijing Gastec Co., Ltd, Beijing 100029, China
| | - H F Yan
- Physical and Chemical Testing Department, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - C G Ding
- Occupational Hazard Identification and Analysis Center, National Center for Occupational Safety and Health, NHC, Beijing 102308, China NHC Key Laboratory for Engineering Control of Dust Hazard, Beijing 102308, China
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10
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Gao Y, Dai J, Xu XP, Liu PF, Shi RH. Role of interferon alpha-inducible protein 6 in modulating the proliferation, apoptosis and senescence of oesophageal squamous cell carcinoma cells. J Physiol Pharmacol 2023; 74. [PMID: 37661181 DOI: 10.26402/jpp.2023.3.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 06/30/2023] [Indexed: 09/05/2023]
Abstract
Oesophageal cancer is one of the most malignant tumors worldwide. Dysfunction of interferon alpha-inducible protein 6 (IFI6) has been implicated in numerous human diseases, including cancer. We performed the study to investigate the function and potential molecular pathways of IFI6 in oesophageal squamous cell carcinoma (ESCC) cells. IFI6 expression was analysed using databases-derived data and paraffin-embedded tissue samples. CCK-8-based analyses and EdU staining, colony formation, β-galactosidase staining and Annexin V/PI double-staining assays were used to determine the influence of IFI6 on cell growth, senescence and apoptosis. Tumor growth in vivo was investigated in mouse xenograft models. RNA sequencing (RNA-seq) was performed to identify the transcripts and pathways affected by IFI6. The results showed that IFI6 expression was elevated in ESCC and correlated with poor clinical prognosis (P<0.05). IFI6 was overexpressed and silenced in TE-1 and TE-10 cells using lentiviruses. Upregulation of IFI6 promoted cell growth both in vitro and in vivo, whereas downregulation induced opposite effects. IFI6 overexpression inhibited cell senescence and apoptosis but did not influence cell cycle progression, while IFI6 downregulation increased cell senescence and apoptosis. RNA-seq revealed that 3 mRNAs (EPHA5, CLIP1 and GTF2F2) were consistently associated with both IFI6 overexpression and silencing. IFI6 appeared to modulate TE-1 cells via complex mechanisms. In conclusion, IFI6 plays a positive role in the proliferation of ESCC cells both in vitro and in vivo, which could be a novel therapeutic target for treating ESCC.
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Affiliation(s)
- Y Gao
- School of Medicine, Southeast University, Nanjing, China
- Department of Gastroenterology, The Jiangyin Clinical College of Xuzhou Medical University, Jiangyin, China.
- Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Soochow, China
| | - J Dai
- Department of Gastroenterology, The Jiangyin Clinical College of Xuzhou Medical University, Jiangyin, China
| | - X P Xu
- Department of Gastroenterology, The Jiangyin Clinical College of Xuzhou Medical University, Jiangyin, China
| | - P F Liu
- School of Medicine, Southeast University, Nanjing, China
- Department of Gastroenterology, The Jiangyin Clinical College of Xuzhou Medical University, Jiangyin, China.
| | - R H Shi
- School of Medicine, Southeast University, Nanjing, China
- Department of Gastroenterology, Zhongda Hospital, Affiliated Hospital of Southeast University, Nanjing, China.
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Lu C, Kui X, Li X, Wang W, Sun X, Li N, Tong P, Dai J. Molecular Characterization and Function of the Nogo-66 Receptor ( NgR1) Gene in the Chinese Tree Shrew. J Integr Neurosci 2023; 22:22. [PMID: 36722229 DOI: 10.31083/j.jin2201022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 04/25/2022] [Revised: 06/04/2022] [Accepted: 06/24/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Nogo-66 receptor (NgR1) is a glycosylphosphatidylinositol-linked cell surface receptor with high affinity for Nogo-66. The binding of Nogo-66 to NgR1 plays a key role in inhibiting neurite growth, limiting synaptic plasticity and mediating Mammalian Reovirus (MRV) infection. The Chinese tree shrew (Tupaia belangeri chinensis) is, a new and valuable experimental animal that is widely used in biomedical research. Although susceptible to MRV, little is known about tree shrew NgR1 and its role in MRV infection. METHODS In this study, we cloned NgR1 form the Chinese tree shrew by RACE technology and analyzed its characteristics, spatial structure and its tissue expression. We also examined the expression pattern of NgR1 in the response of tree shrew primary nerve cells (tNC) to MRV1/TS/2011 infection. RESULTS Tree shrew NgR1 was found to have a closer relationship to human NgR1 (90.34%) than to mouse NgR1. Similar to the protein structure of human NgR1, the tree shrew NgR1 has the same leucine-rich repeat (LRR) domain structure that is capped by C-terminal and N-terminal cysteine-rich modules. The tree shrew NgR1 mRNAs were predominantly detected in the central nervous system (CNS), and tree shrew NgR1 can mediate infection by MRV1/TS/2011. CONCLUSIONS Taken together, these results help to elucidate the function of NgR1 and provide a basis for using the tree shrew as an animal model for studies of the nervous system and infectious diseases.
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Affiliation(s)
- Caixia Lu
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Xiuying Kui
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Xiaofei Li
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Wenguang Wang
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Xiaomei Sun
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Na Li
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Pinfen Tong
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Jiejie Dai
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
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12
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Ma F, Zhu Y, Chang L, Gong J, Luo Y, Dai J, Lu H. Hydrogen sulfide protects against ischemic heart failure by inhibiting RIP1/RIP3/MLKL-mediated necroptosis. Physiol Res 2022. [DOI: 10.33549/physiolres.934905] [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: 12/23/2022] Open
Abstract
The aim of the present study was to explore whether hydrogen sulfide (H2S) protects against ischemic heart failure (HF) by inhibiting the necroptosis pathway. Mice were randomized into Sham, myocardial infarction (MI), MI + propargylglycine (PAG) and MI + sodium hydrosulfide (NaHS) group, respectively. The MI model was induced by ligating the left anterior descending coronary artery. PAG was intraperitoneally administered at a dose of 50 mg/kg/day for 4 weeks, and NaHS at a dose of 4mg/kg/day for the same period. At 4 weeks after MI, the following were observed: A significant decrease in the cardiac function, as evidenced by a decline in ejection fraction (EF) and fractional shortening (FS); an increase in plasma myocardial injury markers, such as creatine kinase-MB (CK-MB) and cardiac troponin I (cTNI); an increase in myocardial collagen content in the heart tissues; and a decrease of H2S level in plasma and heart tissues. Furthermore, the expression levels of necroptosis-related markers such as receptor interacting protein kinase 1 (RIP1), RIP3 and mixed lineage kinase domain-like protein (MLKL) were upregulated after MI. NaHS treatment increased H2S levels in plasma and heart tissues, preserving the cardiac function by increasing EF and FS, decreasing plasma CK-MB and cTNI and reducing collagen content. Additionally, NaHS treatment significantly downregulated the RIP1/RIP3/MLKL pathway. While, PAG treatment aggravated cardiac function by activated the RIP1/RIP3/MLKL pathway. Overall, the present study concluded that H2S protected against ischemic HF by inhibiting RIP1/RIP3/MLKL-mediated necroptosis which could be a potential target treatment for ischemic HF.
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Affiliation(s)
| | | | | | | | | | - J Dai
- Department of Clinical Diagnostics, Hebei Medical University, 361 Zhongshan Road, Shijiazhuang, Hebei, China.
| | - H Lu
- Department of Pharmacy, Shanghai Pudong Hospital, Fudan University, Shanghai 201399, P.R. China.
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Wu S, Damron E, Xu J, Fang P, Dai J, Nair R, Castillo LM, Torres-Cabala C, Fayad L, Medeiros L, Vazquez FV, Miranda R, Duvic M, Pinnix C, Dabaja B, Heberton M, Iyer S, Huen A, Gunther J. Radiotherapy in the Treatment of Primary Cutaneous CD4+ Small/Medium T-Cell Lymphoproliferative Disorder. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.594] [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: 11/30/2022]
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Jia J, Han Y, Jin L, Lu C, Wang W, Tong P, Li N, Sun X, Gu W, Dai J. miR-204-3p downregulates KRT16 and promotes corneal repair in tree shrew fungal keratitis model. Am J Transl Res 2022; 14:7336-7349. [PMID: 36398250 PMCID: PMC9641470] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 07/19/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVES Corneal repair is critical for the treatment and recovery of corneal injuries. However, the molecular mechanism underlying corneal repair remains unclear. METHODS A tree shrew model of corneal fungal infection was established by injecting Fusarium solani into the corneal stroma to study the role of miR-204-3p in repairing corneal injury induced by fungal keratitis and to explore the potential mechanisms underlying the repair process. RESULTS miR-204-3p expression was significantly downregulated, while KRT16 expression was significantly upregulated after F. solani infection in the cornea of tree shrews. Moreover, miR-204-3p injection promoted corneal injury repair post-infection, potentially by downregulating KRT16 expression. Results of a luciferase reporter gene assay showed that miR-204-3p had a targeted relationship with KRT16. KRT16 protein expression levels decreased after miR-204-3p injection into the cornea with fungal keratitis, reducing the degree of corneal injury. CONCLUSIONS In this study, we report for the first time that miR-204-3p and KRT16 influence the repair of corneal injury. In addition, their effects on the repair of corneal injury were studied in a tree shrew model, providing an experimental basis for the study of pathogenesis of human fungal keratitis.
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Affiliation(s)
- Jie Jia
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical CollegeKunming, China
- Scientific Research Laboratory Center, The First Affiliated Hospital of Kunming Medical UniversityKunming, China
| | - Yuanyuan Han
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical CollegeKunming, China
| | - Liangzi Jin
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical CollegeKunming, China
| | - Caixia Lu
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical CollegeKunming, China
| | - Wenguang Wang
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical CollegeKunming, China
| | - Pinfen Tong
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical CollegeKunming, China
| | - Na Li
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical CollegeKunming, China
| | - Xiaomei Sun
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical CollegeKunming, China
| | - Wenpeng Gu
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical CollegeKunming, China
| | - Jiejie Dai
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical CollegeKunming, China
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Wei X, Wang X, Bai X, Li C, Mao L, Chi Z, Lian B, Bixia T, Kong Y, Dai J, Andtbacka R, Guo J, Cui CL, Si L. 795P A phase Ib trial of neoadjuvant oncolytic virus OrienX010 (ori) and anti-PD-1 toripalimab (tori) combo in patients (pts) with resectable stage IIIb-IV (M1a) acral melanoma. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.921] [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: 11/01/2022] Open
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16
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Si L, Qi Z, Dai J, Bai X, Mao L, Li C, Wei X, Cui CL, Chi Z, Sheng X, Kong Y, Bixia T, Zhou L, Lian B, Wang X, Duan R, Guo J. 815P A single-arm, phase II clinical study of imatinib mesylate/toripalimab combo in patients (pts) with advanced melanoma harboring c-Kit mutation or amplification. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.941] [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: 11/01/2022] Open
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17
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Hua X, Dorsey H, Hsung R, Dai J. 042 Epidermal loss of RORα accelerates skin inflammation in a mouse model of atopic dermatitis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.096] [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]
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Bryner Y, Li H, Dai J. 428 RORα promotes keratinocyte differentiation by reducing SOX9 stability. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.437] [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: 10/17/2022]
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Lian B, Si L, Chi ZH, Sheng XN, Kong Y, Wang X, Tian H, Li K, Mao LL, Bai X, Tang BX, Yan XQ, Li SM, Zhou L, Dai J, Tang XW, Ran FW, Yao S, Guo J, Cui CL. Toripalimab (anti-PD-1) versus High-Dose Interferon-α2b as Adjuvant Therapy in Resected Mucosal Melanoma: A Phase II Randomized Trial. Ann Oncol 2022; 33:1061-1070. [PMID: 35842199 DOI: 10.1016/j.annonc.2022.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 06/25/2022] [Accepted: 07/06/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND No standard of care for mucosal melanoma (MM) in the adjuvant setting has been established. Meanwhile, relapse-free survival (RFS) is only about five months after surgery alone. This phase II trial aimed to compare toripalimab vs. high-dose interferon-α2b (HDI) as an adjuvant therapy for resected MM. PATIENTS AND METHODS From July 2017 to May 2019, 145 patients with resected MM were randomized (1:1) to receive HDI (N = 72) or toripalimab (N = 73) for one year until disease relapse/distant metastasis, unacceptable toxicity, or withdrawal of consent. The primary endpoint was RFS. The secondary endpoints included distant metastasis-free survival (DMFS), overall survival (OS), and safety. RESULTS After a median follow-up of 26.3 months, the numbers of RFS, OS, and DMFS events were 51 vs. 46, 33 vs. 29, and 49 vs. 44 in the toripalimab arm and the HDI arm, respectively. The median RFS were 13.6 (95%CI: 8.31-19.02) months and 13.9 (95%CI: 8.28-19.61) months in the toripalimab arm and HDI arm, respectively. The DMFS was not significantly different between the two arms (HR: 1.00, 95%CI: 0.65-1.54). The median OS was 35.1 months (95%CI: 27.93-NR) in the toripalimab arm, with no significant difference in all-cause death (HR: 1.11, 95% CI: 0.66-1.84) for the two arms. The median sums of the patients' actual infusion doses were 3672 mg and 1054.5 MIU in the toripalimab arm and HDI arm, respectively. The incidence of treatment-emergent adverse events with a grade ≥ 3 was much higher in the HDI arm than in the toripalimab arm (87.5% vs. 27.4%). CONCLUSION Toripalimab showed a similar RFS and a more favorable safety profile than HDI, both better than historical data, suggesting that toripalimab might be the better treatment option. However, additional translational studies and better treatment regimens are still warranted to improve the clinical outcome of MM.
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Affiliation(s)
- B Lian
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - L Si
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - Z H Chi
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - X N Sheng
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - Y Kong
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - X Wang
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - H Tian
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - K Li
- Department of Cancer Biotherapy Center, Yunnan Cancer Hospital, Kunming, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - L L Mao
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - X Bai
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - B X Tang
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - X Q Yan
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - S M Li
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - L Zhou
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - J Dai
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - X W Tang
- Shanghai Junshi Biosciences, Shanghai, China
| | - F W Ran
- Shanghai Junshi Biosciences, Shanghai, China
| | - S Yao
- Shanghai Junshi Biosciences, Shanghai, China
| | - J Guo
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China
| | - C L Cui
- Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Beijing, China.
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20
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Dai J, Chen Y, Li Q, Zhang T, Gong F, Lu G, Lin G. P-060 Bubble-shaped Acrosome: Novel phenotype of Teratozoospermia Caused by Mutation in Actin-like 7A. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.056] [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: 11/12/2022] Open
Abstract
Abstract
Study question
What’s the etiology of severe teratozoospermia characteristic as bubble-shaped acrosome (BSA)?
Summary answer
Severe teratozoospermia characterized as BSA caused by mutation (c.1024G>A) in actin-like 7A (ACTL7A).
What is known already
Teratozoospermia is a common cause of male infertility, defined by having a proportion of morphologically normal sperm at less than 4%. It exhibits aberrant sperm phenotypes in the head, neck, midpiece, and endpiece of sperm. Teratozoospermia with ephalic abnormalities are among the most severe and characteristic sperm defects. Some genetic factors are reported to be associated with ephalic abnormalities such as globozoospermia and macrozoospermia. However, other phenotypes and the causative genes of ephalic abnormalities, especially in acrosomal structure, and were largely unknown.
Study design, size, duration
Severe teratozoospermia were recruited from the Reproductive and Genetic Hospital of CITIC-Xiangya from Jan 2019 to Dec 2021.
Participants/materials, setting, methods
Whole-exome sequencing analysis was used to analyze the genetic factor of man. An Actl7a-mutated mouse model was generated by CRISPER-Cas9. Transmission electron microscopy was used to detect the abnormality of ultrastructure during acrosome biogenesis. Immunostaining was used to analyze the localization of ACTL7A and PLCζ. Immunoprecipitation followed by liquid chromatography-mass spectrometry (LC-MS) was used to select the differentially expressed proteins. ICSI with calcium ionophore exposure was performed in couple with ACTL7A mutation.
Main results and the role of chance
We found a man with severe teratozoospermia characterized as BSA carrying a mutation (c.1024G>A) in ACTL7A. Homozygous Actl7a-mutated male mice were sterile, and all of sperm showed acrosomal abnormalities. During acrosomal biogenesis, it detected the acrosome detach from the nuclear in Actl7a-mutated mice. Furthermore, mutant ACTL7A failed to attach to the acroplaxome and was discharged by cytoplasmic droplets, which led to the absence of ACTL7A in mature sperm. The mutant sperm failed to activate the oocyte, and PLCζ discharge accompanied by ACTL7A was observed, leading to total fertilization failure (TFF). Immunoprecipitation followed by LC-MS showed that several differentially expressed proteins participate in acrosome assembly and actin filament organization. Furthermore, assisted oocyte activation by calcium ionophore exposure successfully overcame TFF in a couple with an ACTL7A mutation.
Limitations, reasons for caution
More cases are needed to demonstrate the relationship between mutation and phenotype.
Wider implications of the findings
Our study defined a novel phenotype of the acrosomal abnormality characterized as BSA and revealed the underlying mechanism of mutation in ACTL7A and provided a genetic marker and a therapeutic option for male infertility.
Trial registration number
Not Applicable
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Affiliation(s)
- J Dai
- Central South University, School of Basic Medical Science , Changsha, China
| | - Y Chen
- Central South University, School of Basic Medical Science , Changsha, China
| | - Q Li
- Xiangya Hospital Central South University-, Reproductive Center , Changsha, China
| | - T Zhang
- Reproductive and Genetic Hospital of CITIC-Xiangya, Clinical Research Center for Reproduction and Genetics in Hunan Province , Changsha, China
| | - F Gong
- Central South University, School of Basic Medical Science , Changsha, China
| | - G Lu
- Reproductive and Genetic Hospital of CITIC-Xiangya, Clinical Research Center for Reproduction and Genetics in Hunan Province , Changsha, China
| | - G Lin
- Central South University, School of Basic Medical Science , Changsha, China
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21
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Qiu D, Kui X, Wang W, Li N, Tong P, Sun X, Lu C, Dai J. Identification of SEC14 like lipid binding 2(SEC14L2) sequence and expression profiles in the Chinese tree shrew (Tupaia belangeri chinensis). Mol Biol Rep 2022; 49:7307-7314. [PMID: 35767108 DOI: 10.1007/s11033-022-07518-7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/26/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND The product of the SEC14L2 (SEC14 Like Lipid Binding 2) gene belongs to a family of lipid-binding proteins including Sec14p, alpha-tocopherol transfer protein, and cellular retinol-binding protein. SEC14L2 expression enables replication of clinical hepatitis C virus (HCV) isolates in several hepatoma cell lines, and mutations in SEC14L2 may enhance HCV replication in vitro. The Chinese tree shrew (Tupaia belangeri chinensis) is a potential animal model for studying HCV replication, however, the cDNA sequence, protein structure, and expression of the Chinese tree shrew SEC14L2 gene have yet to be characterized. METHODS AND RESULTS In the present study, we cloned the full-length cDNA sequence of the SEC14L2 in the Chinese tree shrew by using rapid amplification of cDNA ends technology. This led us to determine that, this is 2539 base pairs (bp) in length, the open reading frame sequence is 1212 bp, and encodes 403 amino acids. Following this, we constructed a phylogenetic tree based on SEC14L2 molecules from various species and compared SEC14L2 amino acid sequence with other species. This analysis indicated that the Chinese tree shrew SEC14L2 protein (tsSEC14L2) has 96.28% amino acid similarity to the human protein, and is more closely related to the human protein than either mouse or rat protein. The Chinese tree shrew SEC14L2 mRNA was detected in all tissues, and showed highest expression levels in the pancreas, small intestine and trachea, however the tsSEC14L2 protein abundance was highest in the liver and small intestine. CONCLUSION The Chinese tree shrew SEC14L2 gene was closer in evolutionary relation to humans and non-human primates and expression of the tsSEC14L2 protein was highest in the liver and small intestine. These results may provide useful information for tsSEC14L2 function in HCV infection.
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Affiliation(s)
- Dandan Qiu
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, No. 935 Jiaoling Road, Kunming, Yunan, China.,The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China
| | - Xiuying Kui
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, No. 935 Jiaoling Road, Kunming, Yunan, China
| | - Wenguang Wang
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, No. 935 Jiaoling Road, Kunming, Yunan, China
| | - Na Li
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, No. 935 Jiaoling Road, Kunming, Yunan, China
| | - Pinfen Tong
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, No. 935 Jiaoling Road, Kunming, Yunan, China
| | - Xiaomei Sun
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, No. 935 Jiaoling Road, Kunming, Yunan, China
| | - Caixia Lu
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, No. 935 Jiaoling Road, Kunming, Yunan, China.
| | - Jiejie Dai
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, No. 935 Jiaoling Road, Kunming, Yunan, China.
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22
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Shen YR, Cai LP, Qin X, Wang HF, Zhang P, Zhu YM, Chen C, Jiang GN, Dai J. [Comparison and thoughts of the training system for thoracic surgeons]. Zhonghua Wai Ke Za Zhi 2022; 60:742-748. [PMID: 35790526 DOI: 10.3760/cma.j.cn112139-20220318-00114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
There is no unified thoracic surgery training system in China, neither in the trainee selection or evaluation, nor in the training curriculum or the graduation requirements. A literature review was performed for available publications regarding international thoracic surgical training. A brief comparison was made regarding the thoracic surgery residency programs in China, Japan, United States and United Kingdom, including training pathway, recruitments, training content, performance assessment and academic experience. In conclusion, there are four key aspects worth noting. Firstly, an effective residency programme is invaluable to specialty training, and effort should be made to create a unified training programme that allows trainee to progress from residency to specialty training smoothly. Secondly, flexibility and personalization should be allowed in higher specialty training, so that trainee can develop their subspecialty interests. Thirdly, a unified clinical curriculum, selection and standardized income should be promoted to minimalize the variation of training outcome between provinces. Fourthly, additional training and time should be allowed for trainee who wants to pursue an academic career, and academic outcomes should be evaluated alongside with the standard clinical training.
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Affiliation(s)
- Y R Shen
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - L P Cai
- Royal Stoke University Hospital, Stoke ST4 6QG, United Kingdom
| | - X Qin
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - H F Wang
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - P Zhang
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - Y M Zhu
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - C Chen
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - G N Jiang
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - J Dai
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
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23
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Jin KQ, Shen YR, Wu YM, Dai J, Liu XG, Li JQ, Chen LS, Jiang GN. [Association between the presence of solid or micropapillary components and survival outcome in stage ⅠA lung adenocarcinoma cases: a retrospective cohort study]. Zhonghua Wai Ke Za Zhi 2022; 60:587-592. [PMID: 35658347 DOI: 10.3760/cma.j.cn112139-20220225-00084] [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
Objectives: To examine the influence of the proportion of pathological subtypes on the prognosis of stage ⅠA lung adenocarcinoma cases, and to explore the association between the presence/absence of solid or micropapillary (S/M) components and survival outcome. Methods: Totally 321 patients with stage ⅠA lung adenocarcinoma who received complete surgical resection at Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital from January 2011 to December 2013 were retrospectively analyzed. There were 130 males and 191 females, aging 59(11) years (M(IQR)) (range: 55 to 66 years). The diagnostic value of the proportion of each pathological growth subtype on relapse-free survival (RFS) and overall survival (OS) were analyzed by using receiver operator characteristic curve. Patients were firstly divided into two groups according to the presence or absence of S/M components. And patients without S/M components were farther divided into two groups according to predominant growth pattern. There were three groups in total: with S/M components (group S/M+), without S/M components and lepidic growth pattern predominant (group S/M-LPA), without S/M components and papillary or acinar growth pattern predominant (group S/M-P/A). Kaplan-Meier method were used to draw the survival curves of the three groups, and Log-rank test were used to compare RFS and OS among the three groups. Cox proportional risk model was used to verify whether the presence of S/M components was a prognostic factor on RFS. Results: The proportion of S/M components had no diagnostic value for recurrence (solid: area under curve (AUC)=0.588, P=0.095; micropapillary: AUC=0.566, P=0.106) and death (AUC=0.589, P=0.104; AUC=0.607, P=0.056). The 5-year RFS rate of group S/M-LPA, S/M-P/A and S/M+ were 92.4%, 82.3% and 77.3%, respectively (all P<0.05), while the 5-year OS rate were 97.4%, 94.5% and 83.2%, respectively (all P<0.05). Multivariable analysis showed that the 3 groups were independent predictors of recurrence (S/M-P/A vs. S/M- LPA: HR=2.691, 95%CI: 1.249 to 5.799, P=0.011; S/M+ vs. S/M-LPA, HR=6.763, 95%CI: 3.050 to 14.996, P<0.01). Conclusions: The proportion of S/M components in stage ⅠA lung adenocarcinoma with complete resection cases did not affect survival outcome. New grouping method based on the presence or absence of S/M components were significantly associated with patient survival outcomes: S/M+ patients had the worst prognosis and S/M-LPA patients had the best prognosis.
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Affiliation(s)
- K Q Jin
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - Y R Shen
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - Y M Wu
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - J Dai
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - X G Liu
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - J Q Li
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - L S Chen
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - G N Jiang
- Department of Thoracic Surgery, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai 200433, China
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24
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Dai J, Krems RV. Quantum Gaussian process model of potential energy surface for a polyatomic molecule. J Chem Phys 2022; 156:184802. [PMID: 35568545 DOI: 10.1063/5.0088821] [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: 11/15/2022] Open
Abstract
With gates of a quantum computer designed to encode multi-dimensional vectors, projections of quantum computer states onto specific qubit states can produce kernels of reproducing kernel Hilbert spaces. We show that quantum kernels obtained with a fixed ansatz implementable on current quantum computers can be used for accurate regression models of global potential energy surfaces (PESs) for polyatomic molecules. To obtain accurate regression models, we apply Bayesian optimization to maximize marginal likelihood by varying the parameters of the quantum gates. This yields Gaussian process models with quantum kernels. We illustrate the effect of qubit entanglement in the quantum kernels and explore the generalization performance of quantum Gaussian processes by extrapolating global six-dimensional PESs in the energy domain.
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Affiliation(s)
- J Dai
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, CanadaStewart Blusson Quantum Matter Institute, Vancouver, British Columbia V6T 1Z4, Canada
| | - R V Krems
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, CanadaStewart Blusson Quantum Matter Institute, Vancouver, British Columbia V6T 1Z4, Canada
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25
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Li Y, Zhou F, Y. wei, Wang W, Yang L, Wang Q, Dai J, Xia L, Jin P. Better prognostic value of body composition incorporated systemic inflammation markers in gastric cancer patients treated with adjuvant chemoradiotherapy. Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Gu W, Wang W, Li W, Li N, Wang Y, Zhang W, Lu C, Tong P, Han Y, Sun X, Lu J, Wu Y, Dai J. New ribotype Clostridioides difficile from ST11 group revealed higher pathogenic ability than RT078. Emerg Microbes Infect 2021; 10:687-699. [PMID: 33682630 PMCID: PMC8023612 DOI: 10.1080/22221751.2021.1900748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 02/07/2021] [Accepted: 03/04/2021] [Indexed: 11/14/2022]
Abstract
Clostridioides difficile is the predominant antibiotic-associated enteropathogen associated with diarrhoea or pseudomembranous colitis in patients worldwide. Previously, we identified C. difficile RT078 isolates (CD21062) from elderly patients in China, including two new ribotype strains (CD10010 and CD12038) belonging to the ST11 group, and their genomic features were also investigated. This study compared sporulation, spore germination, toxin expression, flagellar characteristics, and adhesion among these strains in vitro and analysed their pathogenic ability in vivo using animal models. The results showed sporulation and spore germination did not significantly differ among the three C. difficile strains. CD10010 and CD12038 showed higher transcriptional levels of toxins until 48 h; thereafter, the transcriptional levels of toxins remained constant among RT078, CD10010, and CD12038. RT078 showed a loss of flagellum and its related genes, whereas CD12038 showed the highest motility in vitro. Both CD10010 and CD12038 initially showed flg phase OFF, and the flagellar switch reversed to phase ON after 48 h in swim agar. Flagellar proteins and toxins were both upregulated when flg phase OFF changed to flg phase ON status, enhancing their pathogenic ability. CD12038 showed the highest adhesion to Hep-2 cells. Histopathology and inflammation scores demonstrated that CD12038 caused the most severe tissue damage and infection in vivo. The new ribotype strains, particularly CD12038, exhibit higher pathogenic ability than the typical RT078 strain, both in vitro and in vivo. Therefore, more attention should be paid to this new C. difficile strain in epidemiological research; further studies are warranted.
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Affiliation(s)
- Wenpeng Gu
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
- Department of Acute Infectious Diseases Control and Prevention, Yunnan Provincial Centre for Disease Control and Prevention, Kunming, China
| | - Wenguang Wang
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
| | - Wenge Li
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Na Li
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
| | - Yuanyuan Wang
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wenzhu Zhang
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Caixia Lu
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
| | - Pinfen Tong
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
| | - Yuanyuan Han
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
| | - Xiaomei Sun
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
| | - Jinxing Lu
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yuan Wu
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jiejie Dai
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
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27
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Li DF, Chen HC, Jin XM, Dai J, Zeng ZJ, Yang M, Sun PY, Dong LJ, Han Y, Ma YL, Chen M, Song ZZ. [HCV and Treponema pallidum infection status in HIV/AIDS cases in Yunnan province, January-June, 2020]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1983-1988. [PMID: 34818844 DOI: 10.3760/cma.j.cn112338-20210517-00406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the infection status of HCV and Treponema pallidum (TP) in HIV/AIDS cases in Yunnan province,and identify the risk factors. Methods: Between January 1 and June 30 in 2020,a cross-sectional survey was conducted in Yunnan. Two enzyme-linked immunosorbent assay (ELISA) kits were used to detect anti-HCV, the positive results of both two kits indicated HCV infection. ELISA and syphilis toluidine red untreated serum test were applied to identify TP infection. Both Excel 2016 and SPSS 22.0 software were used for statistical analysis, and logistic regression model was conducted to identify the relevant factors of HCV and TP infection. Results: A total of 5 922 HIV/AIDS cases were included in this study, the infection rates of HCV and TP were 6.5% (383/5 922) and 5.8% (344/5 922) respectively. The co-infection rate of HCV and TP was 0.4% (22/5 922). The risk for HCV infection in HIV/AIDS cases was higher in younger age groups compared with age group ≥50 years (15-19:aOR=3.53;20-29:aOR=3.02;30-39:aOR=2.91;40-49:aOR=3.61), in males than in females (aOR=2.31), in the married and unmarried than in the divorced or widowed (married:aOR=1.61;unmarried:aOR=1.63), in other ethnic groups than in Han ethnic group (aOR=1.70), in people with lower education level than in people with education level of college and above (primary school degree and below:aOR=4.69;middle school:aOR=3.96), in people living in the central and western Yunnan than in people living in eastern Yunnan (central Yunnan:aOR=2.46; western Yunnan:aOR=7.08), in injection drug users than in MSM (aOR=131.08). The risk of TP infection in HIV/AIDS cases was higher in people with education level of college and primary school than in middle school degree (primary school and below:aOR=1.73;college and above:aOR=1.77), in people with other occupations than in farmers (aOR=1.39), in people living in eastern Yunnan than in people living in western Yunnan (aOR=1.75); in MSM than in people with heterosex (aOR=9.75). Conclusions: A certain proportion of HIV/AIDS cases reported between January and June in 2020 in Yunnan were co-infected with HCV and TP, many factors were associated with the co-infection. It is suggested to strengthen HCV and TP tests in HIV/AIDS cases and conduct active treatment of the co-infection.
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Affiliation(s)
- D F Li
- School of Public Health, Kunming Medical University, Kunming 650500, China
| | - H C Chen
- Institute for AIDS/STD Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650022, China
| | - X M Jin
- Institute for AIDS/STD Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650022, China
| | - J Dai
- Institute for AIDS/STD Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650022, China
| | - Z J Zeng
- Institute for AIDS/STD Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650022, China
| | - M Yang
- Institute for AIDS/STD Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650022, China
| | - P Y Sun
- Institute for AIDS/STD Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650022, China
| | - L J Dong
- Institute for AIDS/STD Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650022, China
| | - Y Han
- Institute for AIDS/STD Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650022, China
| | - Y L Ma
- Institute for AIDS/STD Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650022, China
| | - M Chen
- Institute for AIDS/STD Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650022, China
| | - Z Z Song
- Institute for AIDS/STD Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650022, China
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28
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Dai J, Zhang T, Guo J, Zhou Q, Gu Y, Zhang J, Hu L, Zong Y, Song J, Zhang S, Dai C, Gong F, Lu G, Zheng W, Lin G. P–568 Homozygous Pathogenic Variants in ACTL9 Cause Fertilization Failure and Male Infertility in Human and Mouse. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.567] [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: 11/13/2022] Open
Abstract
Abstract
Study question
What are the other male factors that cause total fertilization failure (TFF) excepting for variants in PLCZ1?
Summary answer
Homozygous variants in ACTL9 (actin like 9) cause abnormal localization of PLCζ in a loosened perinuclear theca (PT) structure and leads to TFF.
What is known already
In previous studies, investigators have reported that the female factors in TFF after intracytoplasmic sperm injection (ICSI) include pathogenic variants in WEE2, TLE6, and TUBB8, whereas for male factors, pathogenic variants in PLCZ1 were reported to be the primary cause of TFF, which account for approximately 30% of couples with male factors in TFF excluding globozoospermia. Most recently, it was reported that pathogenic variants in ACTL7A led to reduced expression and abnormal localization of PLCζ, thereby identifying this genetic variant as a potential cause of TFF.
Study design, size, duration
Fifty-four infertile couples with TFF or poor fertilization (fertilization rate of < 20%) at the Reproductive and Genetic Hospital of CITIC-Xiangya during January 2014 to June 2020 were recruited into this study.
Participants/materials, setting, methods
Male factors were identified in (MOAT). WES analysis was used to analyze the genetic factors of individuals with male factors. Sperm morphological study was conducted by H&E staining and TEM. Immunostaining of PLCζ was used to analyze the status of sperm-borne activation factor. A knock-in mouse model was generated by CRISPER-Cas9 technology. Sperm from homozygous Actl9 variant mice were analyzed by TEM and ICSI. ICSI with AOA was performed in couples with ACTL9 variants.
Main results and the role of chance
A total of 54 couples with TFF or poor fertilization were screened, with 21 couples determined to have a male infertility factor by MOAT. Whole-exome sequencing of these 21 male individuals identified three homozygous pathogenic variants in ACTL9 in three individuals. ACTL9 variations led to abnormal ultrastructure of the PT, with PLCζ absent in the head and present in the neck of the mutant sperm, which contributed to failed normal calcium oscillations in oocytes and subsequent TFF. The key roles of ACTL9 in the PT structure and TFF after ICSI were further confirmed in Actl9-mutated mouse model. Furthermore, assisted oocyte activation by calcium ionophore exposure successfully overcame TFF and achieved live births in a couple with an ACTL9 variant.
Limitations, reasons for caution
The mechanism of how ACTL9 regulate PLCζ remains unknown.
Wider implications of the findings: It provided a genetic marker and a therapeutic option for individuals who have undergone ICSI without successful fertilization.
Trial registration number
not applioable
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Affiliation(s)
- J Dai
- Central South University, School of basic medicine, Changsha, China
| | - T Zhang
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - J Guo
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - Q Zhou
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - Y Gu
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - J Zhang
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - L Hu
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - Y Zong
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - J Song
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - S Zhang
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - C Dai
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - F Gong
- Central South University, School of basic medicine, Changsha, China
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - G Lu
- Central South University, School of basic medicine, Changsha, China
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - W Zheng
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - G Lin
- Central South University, School of basic medicine, Changsha, China
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Li N, Gu W, Lu C, Sun X, Tong P, Han Y, Wang W, Dai J. Characteristics of Angiotensin I-converting enzyme 2, type II transmembrane serine protease 2 and 4 in tree shrew indicate it as a potential animal model for SARS-CoV-2 infection. Bioengineered 2021; 12:2836-2850. [PMID: 34227905 PMCID: PMC8806782 DOI: 10.1080/21655979.2021.1940072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2022] Open
Abstract
Angiotensin I-converting enzyme 2 (ACE2), type II transmembrane serine protease 2 and 4 (TMPRSS2 and TMPRSS4) are important receptors for SARS-CoV-2 infection. In this study, the full-length tree shrewACE2 gene was cloned and sequenced, and its biological information was analyzed. The expression levels of ACE2, TMPRSS2 and TMPRSS4 in various tissues or organs of the tree shrew were detected. The results showed that the full-length ACE2 gene in tree shrews was 2,786 bp, and its CDS was 2,418 bp, encoding 805 amino acids. Phylogenetic analysis based on the CDS of ACE2 revealed that tree shrews were more similar to rabbits (85.93%) and humans (85.47%) but far from mice (82.81%) and rats (82.58%). In silico analysis according to the binding site of SARS-CoV-2 with the ACE2 receptor of different species predicted that tree shrews had potential SARS-CoV-2 infection possibility, which was similar to that of rabbits, cats and dogs but significantly higher than that of mice and rats. In addition, various tissues or organs of tree shrews expressed ACE2, TMPRSS2 and TMPRSS4. Among them, the kidney most highly expressed ACE2, followed by the lung and liver. The esophagus, lung, liver, intestine and kidney had relatively high expression levels of TMPRSS2 and TMPRSS4. In general, we reported for the first time the expression of ACE2, TMPRSS2 and TMPRSS4 in various tissues or organs in tree shrews. Our results revealed that tree shrews could be used as a potential animal model to study the mechanism underlying SARS-CoV-2 infection.
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Affiliation(s)
- Na Li
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tupaia Belangeri Chinensis, Kunming, China
| | - Wenpeng Gu
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tupaia Belangeri Chinensis, Kunming, China
| | - Caixia Lu
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tupaia Belangeri Chinensis, Kunming, China
| | - Xiaomei Sun
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tupaia Belangeri Chinensis, Kunming, China
| | - Pinfen Tong
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tupaia Belangeri Chinensis, Kunming, China
| | - Yuanyuan Han
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tupaia Belangeri Chinensis, Kunming, China
| | - Wenguang Wang
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tupaia Belangeri Chinensis, Kunming, China
| | - Jiejie Dai
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Yunnan Innovation Team of Standardization and Application Research in Tupaia Belangeri Chinensis, Kunming, China
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Chang L, Liu A, Xu J, Xu X, Dai J, Wu R, Yan W, Wang R, Sun Z, Ikegawa S, Jiang Q, Shi D. TDP-43 maintains chondrocyte homeostasis and alleviates cartilage degradation in osteoarthritis. Osteoarthritis Cartilage 2021; 29:1036-1047. [PMID: 33781898 DOI: 10.1016/j.joca.2021.03.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 03/04/2021] [Accepted: 03/15/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) is the most prevalent age-related disorder due to cartilage degradation. Previous studies have identified aberrant chondrocyte homeostasis under extracellular stress as a key pathological mechanism behind cartilage degradation in OA. TDP-43, a DNA/RNA-binding protein has been demonstrated to participate in processing many extracellular stress responses; however, understanding of the role of TDP-43 in OA is limited. This study aims to investigate the role of TDP-43 in chondrocyte homeostasis and cartilage degradation in OA. METHODS The role of TDP-43 during degradation of cartilage is examined by experimental posttraumatic OA animal models and human cartilage specimens. Cartilage degradation is assessed by histological analysis, qPCR, and Western blot. The molecular mechanisms are investigated in vitro using human primary chondrocytes. RESULTS TDP-43 decreases significantly in degenerated cartilage. TDP-43 concentration is positively correlated with IL-1β concentration in synovial fluid derived from OA patients (Pearson r = 0.95, CI (95%) [0.80, 0.99], P < 0.0001). Intra-articular injection of recombinant TDP-43 significantly alleviates cartilage degradation and subchondral bone remodeling in vivo. In vitro mechanistic analyses show that TDP-43 maintains chondrocyte homeostasis under oxidative stress through regulating stress granule dynamics via G3BP1. CONCLUSION The present study indicates that TDP-43 maintains chondrocyte homeostasis under oxidative stress and alleviates cartilage degeneration in osteoarthritis, identifying TDP-43 as a potential target for the diagnosis and treatment of knee OA.
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Affiliation(s)
- L Chang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China; Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China.
| | - A Liu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - J Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - X Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - J Dai
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - R Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - W Yan
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - R Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - Z Sun
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - S Ikegawa
- Laboratory of Bone and Joint Diseases, Center for Integrative Medical Sciences, RIKEN, Tokyo, Japan.
| | - Q Jiang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - D Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
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Baloch Z, Shen Z, Zhang L, Feng Y, Li D, Zhang NN, Deng YQ, Yang C, Sun X, Dai J, Yang Z, Qin CF, Xia X. Recapitulating Zika Virus Infection in Vagina of Tree Shrew (Tupaia belangeri). Front Cell Infect Microbiol 2021; 11:687338. [PMID: 34249779 PMCID: PMC8270636 DOI: 10.3389/fcimb.2021.687338] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/10/2021] [Indexed: 01/03/2023] Open
Abstract
Sexual transmission of Zika Virus (ZIKV) elevates the risk of its dissemination in the female reproductive tract and causes a serious threat to the fetus. However, the available animal models are not appropriate to investigate sexual transmission, dynamics of ZIKV infection, replication, and shedding. The use of tree shrew as a small animal model of ZIKV vaginal infection was assessed in this study. A total of 23 sexually mature female tree shrews were infected with ZIKV GZ01 via the intravaginal route. There was no significant difference in change of body weight, and the temperature between ZIKV infected and control animals. Viral RNA loads were detected in blood, saliva, urine, and vaginal douching. ZIKV RNA was readily detected in vaginal lavage of 22 animals (95.65%, 22/23) at 1 dpi, and viral load ranged from 104.46 to 107.35 copies/ml, and the peak of viral load appeared at 1 dpi. The expression of key inflammatory genes, such as IL6, 8, CCL5, TNF-a, and CXCL9, was increased in the spleen of ZIKV infected animals. In the current study, female tree shrews have been successfully infected with ZIKV through the vaginal route for the first time. Interestingly, at first, ZIKV replicates at the local site of infection and then spreads throughout the host body to develop a robust systemic infection and mounted a protective immune response. This small animal model is not only valuable for exploring ZIKV sexual transmission and may also help to explain the cause of debilitating manifestations of the fetus in vivo.
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Affiliation(s)
- Zulqarnain Baloch
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
| | - Zhili Shen
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
| | - Li Zhang
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
| | - Yue Feng
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
| | - Daoqun Li
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
| | - Na-Na Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yong-Qiang Deng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Chunguang Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, Chinese Academy of Sciences, Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Xiaomei Sun
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jiejie Dai
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zifeng Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, Chinese Academy of Sciences, Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Xueshan Xia
- Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine, Kunming University of Science and Technology, Kunming, China
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Dai J, Frantzeskakis E, Aryal N, Chen KW, Fortuna F, Rault JE, Le Fèvre P, Balicas L, Miyamoto K, Okuda T, Manousakis E, Baumbach RE, Santander-Syro AF. Experimental Observation and Spin Texture of Dirac Node Arcs in Tetradymite Topological Metals. Phys Rev Lett 2021; 126:196407. [PMID: 34047592 DOI: 10.1103/physrevlett.126.196407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 03/08/2021] [Accepted: 04/15/2021] [Indexed: 06/12/2023]
Abstract
We report the observation of a nontrivial spin texture in Dirac node arcs, i.e., novel topological objects formed when Dirac cones of massless particles extend along an open one-dimensional line in momentum space. We find that such states are present in all the compounds of the tetradymite M_{2}Te_{2}X family (M=Ti, Zr, or Hf and X=P or As) regardless of the weak or strong character of the topological invariant. The Dirac node arcs in tetradymites are thus the simplest possible textbook example of a type-I Dirac system with a single spin-polarized node arc.
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Affiliation(s)
- J Dai
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
| | - E Frantzeskakis
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
| | - N Aryal
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - K-W Chen
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - F Fortuna
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
| | - J E Rault
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin-BP48, 91192 Gif-sur-Yvette, France
| | - P Le Fèvre
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin-BP48, 91192 Gif-sur-Yvette, France
| | - L Balicas
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - K Miyamoto
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - T Okuda
- Hiroshima Synchrotron Radiation Center (HSRC), Hiroshima University, 2-313 Kagamiyama, Higashi-Hiroshima 739-0046, Japan
| | - E Manousakis
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
- Department of Physics, National and Kapodistrian University of Athens, Panepistimioupolis, Zografos, 157 84 Athens, Greece
| | - R E Baumbach
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - A F Santander-Syro
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
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Jia J, Qiu D, Lu C, Wang W, Li N, Han Y, Tong P, Sun X, Wu M, Dai J. Transcriptome Analysis of Choroid and Retina From Tree Shrew With Choroidal Neovascularization Reveals Key Signaling Moieties. Front Genet 2021; 12:654955. [PMID: 34040635 PMCID: PMC8141912 DOI: 10.3389/fgene.2021.654955] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/15/2021] [Indexed: 11/13/2022] Open
Abstract
Pathological neovascularization in choroid, a leading cause of blindness, is a characteristic of many fundus diseases, such as diabetic retinopathy and age-related macular degeneration. The present study aimed to elucidate the key signaling pathways in choroidal neovascularization (CNV) by analyzing the mRNA profiles of choroid and retina in tree shrews with CNV. We induced choroidal angiogenesis by laser photocoagulation in 15 tree shrews and obtained mRNA profiles of their choroids and retinas by high-throughput transcriptome sequencing. Hierarchical cluster analysis, weighted gene co-expression network analysis (WGCNA), protein-protein interaction (PPI) network analysis, hematoxylin and eosin (HE) staining, CD31 immunohistochemistry (IHC), and reverse transcription quantitative PCR (RT-qPCR) were performed. After laser photocoagulation, we obtained a total of 350 differentially expressed genes (DEGs) in the choroid, including 59 genes in Module-FASN (“ME-FASN”) module and 28 genes in Module-RPL (“ME-RPL”) module. A total of 69 DEGs in retina, including 20 genes in Module-SLC (“ME-SLC”) module. Bioinformatics analysis demonstrated that DEGs in choroid were mainly involved in membrane transport; DEGs in “ME-RPL” were prominent in pathways associated with IgA production, antigen presentation, and cell adhesion molecules (CAMs) signaling. DEGs in “ME-FASN” were involved in fatty acid metabolism and PPAR signaling pathway, while DEGs in “ME-SLC” were involved in GABAergic synapse, neuroactive life receptor interaction, cholinergic synapse, and retrograde endocannabinoid signaling pathway. PPI network analysis demonstrated that the ribosomal protein family genes (RPL31, RPL7, RPL26L1, and RPL19) are key factors of “ME-RPL,” acyl-CoA superfamily genes (ACACA, ACAT1, ACAA2, and ACACB) and FASN are key factors of “ME-FASN” and superfamily of solid carrier genes (SLC17A6, SLC32A1, SLC12A5, and SLC6A1) and complement genes (C4A, C3, and C2) are key factors of “ME-SLC.” In conclusion, the present study discovered the important signal transductions (fatty acid metabolic pathway and CAMs signaling) and genes (ribosomal protein family and the complement system) in tree shrew CNV. We consider that our findings hold implications in unraveling molecular mechanisms that underlie occurrence and development of CNV.
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Affiliation(s)
- Jie Jia
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Scientific Research Laboratory Center, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Dandan Qiu
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Kunming Medical University, Kunming, China
| | - Caixia Lu
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Wenguang Wang
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Na Li
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Yuanyuan Han
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Pinfen Tong
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Xiaomei Sun
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Min Wu
- Yunnan Eye Institute, The Second People's Hospital of Yunnan, Kunming, China
| | - Jiejie Dai
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
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Dai J, Zhuang Y, Tang M, Qian Q, Chen JP. CircRNA UBAP2 facilitates the progression of colorectal cancer by regulating miR-199a/VEGFA pathway. Eur Rev Med Pharmacol Sci 2021; 24:7963-7971. [PMID: 32767322 DOI: 10.26355/eurrev_202008_22479] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study is to explore the regulatory mechanism of circRNA UBAP2 (circUBAP2) in colorectal cancer (CRC). PATIENTS AND METHODS The expression levels of circUBAP2, miR-199a, and VEGFA in tissues and cell lines were detected by RT-qPCR. The cell proliferation was examined by CCK-8 and colony formation assays. The migration and invasion abilities were evaluated by wound healing and transwell assays, respectively. Bioinformatics analysis and Luciferase activity assay were applied to determine the interaction between genes. RESULTS The expression of circUBAP2 was upregulated in CRC tissues and cell lines, and depletion of circUBAP2 suppressed the cell proliferation, migration, and invasion of CRC. Furthermore, miR-199a inhibitor abrogated the suppressive effect of circUBAP2 knockdown on CRC progression. Vascular endothelial growth factor A (VEGFA) was identified as a downstream target gene of miR-199a, and overexpression of VEGFA rescued the tumor phenotypes attenuated by circUBAP2 knockdown or miR-199a overexpression. CONCLUSIONS Our findings demonstrated that circUBAP2 facilitated CRC progression by sponging miR-199a to upregulate VEGFA. These findings implied that circUBAP2 may be a potential therapeutic biomarker for CRC.
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Affiliation(s)
- J Dai
- Department of Gastroenterology, the Third Affiliated Hospital of Soochow University, Changzhou, P.R. China.
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Sun Y, Hua X, Wang P, Li H, Hsung R, Dai J. 140 The clock protein BMAL1 maintains the diploid status of human keratinocytes via a functional interaction with c-myc. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.159] [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: 11/27/2022]
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Liu C, Han Y, Tong P, Kuang D, Li N, Lu C, Sun X, Wang W, Dai J. Genome-wide DNA methylome and whole-transcriptome landscapes of spontaneous intraductal papilloma in tree shrews. Ann Transl Med 2021; 9:688. [PMID: 33987386 PMCID: PMC8106051 DOI: 10.21037/atm-21-1293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Background Breast intraductal papilloma (IP) is mainly caused by the abnormal proliferation of ductal epithelial cells. Tree shrews have potential as an animal model for the study of breast tumours; however, little is known regarding the transcriptome and DNA methylome landscapes of breast IP in tree shrews. In this research, we conducted whole-genome DNA methylation and transcriptome analyses of breast IP and normal mammary glands in tree shrews. Methods DNA methylation profiles were generated from the whole-genome bisulfite sequencing and whole-transcriptome landscapes of IP and control groups of tree shrews through strand-specific library construction and RNA sequencing. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes functional enrichment analyses and gene set enrichment analysis were performed. Spearman’s correlation analysis was used to identify statistical relationships between gene expression and DNA methylation. Results A genome-wide perspective of the epigenetic regulation of protein-coding genes in breast IP in tree shrews was obtained. The methylation levels at CG sites were considerably higher than those at CHG or CHH sites, and were highest in gene body regions. In total, 3,486, 82 and 361 differentially methylated regions (DMRs) were identified in the context of CG, CHG, and CHH, respectively, and 701 differentially methylated genes (DMGs) were found. Further, through transcriptomic analysis, 62 differentially expressed genes, 50 long noncoding RNAs, and 32 circular RNAs were identified in breast IP compared to normal mammary glands. Correlation analysis between the DNA methylation and transcriptome data revealed that 25 DMGs were also differentially expressed genes, among which the expression levels of 9 genes were negatively correlated with methylation levels in gene body regions. Importantly, integrated analysis identified 3 genes (PDZ domain-containing 1, ATPase plasma membrane Ca2+ transporting 4 and Lymphocyte cytosolic protein 1) that could serve as candidates for further study of breast IP in tree shrews. Conclusions This research has unearthed the comprehensive landscape of the transcriptome and DNA methylome of spontaneous IP in tree shrews, as well as candidate tumorigenesis related genes in IP. These results will contribute to the use of tree shrews in animal models of breast tumours.
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Affiliation(s)
- Chengxiu Liu
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Yuanyuan Han
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Pinfen Tong
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Dexuan Kuang
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Na Li
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Caixia Lu
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Xiaomei Sun
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Wenguang Wang
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Jiejie Dai
- The Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
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Dai J, Pan JY, Liao N, Shi J, Zeng Q, Huang L, Chen LP. Influence of miR-155 on behaviors of depression mice through regulating Wnt/β-catenin signaling pathway. Eur Rev Med Pharmacol Sci 2021; 24:1398-1407. [PMID: 32096189 DOI: 10.26355/eurrev_202002_20197] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To study the influence of micro ribonucleic acid (miR)-155 on depression-like behaviors of depression mice, and to explore the role of Wnt/b-catenin signaling pathway in behavioral regulation of depression mice. MATERIALS AND METHODS The mouse model of depression was established via chronic unpredictable mild stress (CUMS). All mice were randomly divided into control group (n=12), model group (n=12), and fluoxetine group (n=12). The expression level of miR-155 in the hippocampus of mice in each group was detected via quantitative Polymerase Chain Reaction (qPCR). The changes in the behaviors of mice in each group were evaluated via behavioral experiments. The apoptosis level in the hippocampus of mice in each group was detected via terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining. Moreover, the content of inflammatory factors in the hippocampus of mice in each group was detected using the enzyme-linked immunosorbent assay (ELISA) kits. The expression levels of Wnt/b-catenin signaling pathway-related proteins in each group were detected via Western blotting. RESULTS The expression level of miR-155 in the hippocampus was significantly higher in model group than that in control group (p<0.01). Meanwhile, the expression level of miR-155 was significantly lower in fluoxetine group than that in model group (p<0.01). There were no statistically significant differences in the crossing score and rearing score in the open field test among groups (p>0.05). Compared with those in control group, the immobility time in tail suspension test and forced swimming test were significantly increased (p<0.01), while the sucrose preference degree significantly declined (p<0.01) in model group. Fluoxetine could significantly reduce the immobility time in tail suspension test and forced swimming test (p<0.01) and increase the sucrose preference degree (p<0.01) in model group. The number of TUNEL-positive cells in the hippocampus of mice in model group was significantly larger than that in control group (p<0.01). Fluoxetine could effectively reduce the number of TUNEL-positive cells in the hippocampus (p<0.01). Compared with those in control group, the content of tumor necrosis factor-α (TNF-a), interleukin-1b (IL-1b), and IL-6 in the hippocampus was significantly increased (p<0.01), while the content of IL-10 was significantly decreased (p<0.01) in model group. Fluoxetine could effectively reduce the content of TNF-a, IL-1b, and IL-6 (p<0.01) and increase the content of IL-10 (p<0.01). Besides, in model group, the expression levels of dishevelled-1 (DVL-1) and b-catenin in hippocampus remarkably declined (p<0.01), while the expression levels of glycogen synthase kinase-3b (GSK-3b) and adenomatous polyposis coli (APC) were remarkably increased (p<0.01) compared with those in control group. Fluoxetine could effectively lower the expressions of GSK-3b and APC in the hippocampus (p<0.01) and increase the expressions of DVL-1 and b-catenin (p<0.01) in model group. CONCLUSIONS MiR-155 is involved in regulating the depression-like behaviors of depression mice through promoting the release of inflammatory factors and the apoptosis of hippocampal neurons. Its mechanism may be related to the inhibition of the Wnt/b-catenin signaling pathway.
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Affiliation(s)
- J Dai
- Department of Psychiatry, The First Affiliated Hospital of Jinan University, Guangzhou, China.
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Lu C, Li M, Sun X, Li N, Wang W, Tong P, Dai J. Comparing the hippocampal miRNA expression profiles of wild and domesticated Chinese tree shrews (Tupaia belangeri chinensis). BMC Ecol Evol 2021; 21:12. [PMID: 33514308 PMCID: PMC7853310 DOI: 10.1186/s12862-020-01740-2] [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: 07/31/2020] [Accepted: 12/21/2020] [Indexed: 11/10/2022] Open
Abstract
Background The domestication of tree shrews represents an important advance in the development of standardized laboratory animals. Little is known regarding the miRNA changes that accompany the transformation of wild tree shrews into domestic tree shrews. Results By performing miRNA-seq analysis on wild and domestic tree shrews, we identified 2410 miRNAs and 30 differentially expressed miRNAs in the hippocampus during tree shrew domestication. A KEGG analysis of the differentially expressed genes showed that the differentially expressed miRNAs were associated with ECM-receptor interaction, the phosphatidylinositol signaling system, protein digestion and absorption, inositol phosphate metabolism, lysine degradation, fatty acid degradation and focal adhesion. Most of these pathways could be classified under environmental information processing, organismal systems and metabolism. The miRNAs exclusively expressed in wild and tame tree shrews GO enriched in terms of divergent functions. The miRNA-mRNA networks suggested that novel-m1388-5p and novel-m0746-5p might play regulatory roles in domestication of tree shrews. Real–time RT-PCR analysis was employed to verify the presence of these miRNAs. Conclusion We identified a number of candidate miRNA-regulated domestication genes that may represent targets for selection during the domestication of tree shrews.
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Affiliation(s)
- Caixia Lu
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China. .,Yunnan Key Laboratory of Vaccine Research and Development On Severe Infectious Diseases, Kunming, China.
| | - Mingxue Li
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Xiaomei Sun
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Yunnan Key Laboratory of Vaccine Research and Development On Severe Infectious Diseases, Kunming, China
| | - Na Li
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Yunnan Key Laboratory of Vaccine Research and Development On Severe Infectious Diseases, Kunming, China
| | - Wenguang Wang
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Yunnan Key Laboratory of Vaccine Research and Development On Severe Infectious Diseases, Kunming, China
| | - Pinfen Tong
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.,Yunnan Key Laboratory of Vaccine Research and Development On Severe Infectious Diseases, Kunming, China
| | - Jiejie Dai
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China. .,Yunnan Key Laboratory of Vaccine Research and Development On Severe Infectious Diseases, Kunming, China.
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Wang X, Ruan L, Song Q, Wang W, Tong P, Kuang D, Lu C, Li N, Han Y, Dai J, Sun X. First report of Schistosoma sinensium infecting Tupaia belangeri and Tricula sp. LF. Int J Parasitol Parasites Wildl 2021; 14:84-90. [PMID: 33537205 PMCID: PMC7843412 DOI: 10.1016/j.ijppaw.2021.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/12/2021] [Accepted: 01/12/2021] [Indexed: 12/01/2022]
Abstract
Schistosoma sinensium belongs to the Asian Schistosoma and is transmitted by freshwater snails of the genus Tricula. Rodents are known definitive hosts of S. sinensium. In 2016, suspected schistosome eggs were found in the feces of the northern tree shrew (Tupaia belangeri) in a field in Lufeng County (latitude, 25°04′50″ N; longitude, 102°19′30″ E; altitude 1820 m), Yunnan Province, China. Morphological analysis suggested that the schistosome was S. sinensium. 18S, 12S and CO1 genes sequencing and phylogenetic analysis showed that this species had the highest similarity to and occupied the same evolutionary branch as S. sinensium from Mianzhu, Sichuan, China. Meanwhile, based on 16S and 28S rDNA sequencing and morphological identification, the snail intermediate host was identified as a species of Tricula, and was found in irrigation channels. Phylogeny indicated that Tricula sp. LF was a sister taxon to T. bambooensis, T. ludongbini. The S. sinensium was able to experimentally infect the captive-bred Tupaia belangeri, and Schistosoma eggs were recovered from all Tupaia belangeri exposed. In this study, we report the infection of Tupaia belangeri and Tricula sp. LF with S. sinensium in Lufeng, Yunnan, southwest China. These findings may improve our understanding of the host range, evolution, distribution, and phylogenetic position of S. sinensium. First report Tupaia belangeri and Tricula. sp. LF act as hosts of Schistosoma sinensium in nature. The schistosome is highly similar to S. sinensium from Mianzhu, Sichuan, China, by morphology and genes analyses. The snail intermediate host, Tricula. sp. LF, was also found and identified based on morphology and genes. Geographic location of occurrence is Lufeng, Yunnan, China (25°04'50" N; 102°19'30" E; altitude, 1820 m).
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Affiliation(s)
- Xuan Wang
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College. Kunming, 650118, PR China
| | - Leiying Ruan
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College. Kunming, 650118, PR China
| | - Qingkai Song
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College. Kunming, 650118, PR China
| | - Wenguang Wang
- Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, 650118, PR China
| | - Pinfen Tong
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College. Kunming, 650118, PR China
| | - Dexuan Kuang
- Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, 650118, PR China
| | - Caixia Lu
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College. Kunming, 650118, PR China
| | - Na Li
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College. Kunming, 650118, PR China
| | - Yuanyuan Han
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College. Kunming, 650118, PR China
| | - Jiejie Dai
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College. Kunming, 650118, PR China
| | - Xiaomei Sun
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College. Kunming, 650118, PR China
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Dai J, Yuan G, Li Y, Zhou H. MicroRNA-596 is epigenetically inactivated and suppresses prostatic cancer cell growth and migration via regulating Wnt/β-catenin signaling. Clin Transl Oncol 2021; 23:1394-1404. [PMID: 33387246 DOI: 10.1007/s12094-020-02536-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 11/24/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Although studies have reported that miR-596 extensively participates in multiple cancer progression, the biological mechanisms and effects of miR-596 in prostatic cancer remain unclear. The literature is aimed to reveal the function and possible molecular mechanisms of miR-596 in prostatic cancer carcinogenesis. MATERIALS AND METHODS qRT-PCR was applied to examine miR-596 expression in prostatic cancer cell lines and samples, also methylation-specific PCR was used to detect the methylation status of the promoter CpG islands in prostatic cancer samples. Meanwhile, the tumor-related effects of miR-596 were detected via cell viability, clone formation assay, migration assay, flow cytometric and AO/EB assay. qRT-PCR and Western blots were applied to investigate the function of miR-596 on malignant behavior in prostatic cancer cells. RESULTS We found that miR-596 mRNA was decreased in prostatic cancer samples and cell lines. miR-596 mRNA level was also correlated to cancer stage, Gleason scores, while miR-596 promoter methylation was related to cancer tumor stage, Gleason score and preoperative PSA levels. miR-596 inhibited the cell growth and activity by causing cell apoptosis, and also suppressed the migration of prostatic cancer cells by revealing the epithelial-mesenchymal transition process. In addition, Western blot indicates that miR-596 overexpression deregulated Wnt/β-catenin signaling, by restraining phosphorylation levels of β-catenin and expression levels of downstream targets. CONCLUSIONS In summary, this research indicates that miR-596 overexpression could be potentially useful in the cell growth and migration of prostatic cancer and serves as a potential molecular marker in prostatic cancer.
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Affiliation(s)
- J Dai
- Chongqing University Cancer Hospital, Chongqing, China
| | - G Yuan
- Chongqing University Cancer Hospital, Chongqing, China
| | - Y Li
- Chongqing University Cancer Hospital, Chongqing, China
| | - H Zhou
- Chongqing University Cancer Hospital, Chongqing, China.
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Zhang WL, Xu L, Zhang Q, Zhong FL, Dai J, Feng J, Sun LH, Xu HC, Xie WY, Zhang HY. [The diagnostic value of flow cytometry in patients with lymphoma associated hemophagocytic syndrome]. Zhonghua Nei Ke Za Zhi 2020; 59:976-981. [PMID: 33256339 DOI: 10.3760/cma.j.cn112138-20200605-00560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the reliability of flow cytometry (FCM) for diagnosing lymphoma associated hemophagocytic syndrome (LAHS). Method: The clinical data in 57 patients with hemophagocytic lymphohistiocytosis (HLH)were retrospective analyzed at Peking University Shenzhen Hospital from July 2010 to July 2019. All patients were performed bone marrow FCM and bone marrow pathological examination before final diagnoses were made. The golden diagnosis criterion was based on clinical, biochemical and histopathological evidence, which was regarded as the standard to evaluate the sensitivity and specificity of FCM analysis in diagnosing LAHS. Results: Among 57 cases, 36 cases were eventually diagnosed with LAHS, including 15 B-cell lymphoma(14 diffuse large B-cell lymphoma, 1 B-cell lymphoma with reactive T-cell hyperplasia), 13 aggressive NK/T cell lymphoma/leukemia, 2 cases of gamma-delta T-cell lymphoma, 4 angioimmunoblastic T-cell lymphoma, 1 enteropathy-associated peripheral T-cell lymphoma and 1 anaplastic T-cell lymphoma. Lymphoma cells in bone marrow were detected in all patients by FCM except one ENTCL patient. The sensitivity and the specificity of FCM in LASH compared to bone marrow biopsy were 97.2%(P=0.014)and 90.5%(P=0.488) respectively. In the other 21 non-LAHS patients, T cell receptor Vβ (TCRVβ) rearrangement was detected in 2 patients with Epstein-Barr virus (EBV) associated primary HLH. Conclusions: FCM effectively detects lymphoma cells in bone marrow of lymphoma patients with LHL, suggesting that FCM could be an important indicator for the diagnosis of LAHS. FCM also has the advantage in differentiating LAHS from other HLH.
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Affiliation(s)
- W L Zhang
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen 518000, China
| | - L Xu
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen 518000, China
| | - Q Zhang
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen 518000, China
| | - F L Zhong
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen 518000, China
| | - J Dai
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen 518000, China
| | - J Feng
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen 518000, China
| | - L H Sun
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen 518000, China
| | - H C Xu
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen 518000, China
| | - W Y Xie
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen 518000, China
| | - H Y Zhang
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen 518000, China
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Lu C, Feng Y, Sun X, Li N, Kuang D, Wang W, Tong P, Han Y, Xia X, Dai J. Tree shrew bone marrow-derived mesenchymal stem cells express CD81, OCLN, and miR-122, facilitating the entire hepatitis C virus life cycle. J Med Virol 2020; 92:3465-3474. [PMID: 32056224 DOI: 10.1002/jmv.25710] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Accepted: 02/10/2020] [Indexed: 01/12/2023]
Abstract
Hepatitis C virus (HCV) infection is a major cause of chronic liver disease and associated cirrhosis, and hepatocellular carcinoma worldwide. At present, there is no prophylactic vaccine against HCV due to the lack of in vivo and in vitro model systems. Although most recombinants of all major HCV genotypes replicate in Huh-7 cell line and derivatives, these cells are human hepatoma-derived cell line. Therefore, the development of un-tumor-derived cell systems facilitating the entire HCV life cycle is urgently needed. In this study, we aimed to establish a novel tree shrew-derived bone marrow-derived mesenchymal stem cell (BM-MSC) system to reconstruct the HCV life cycle. We transduction cluster of differentiation 81 (CD81), occludin (OCLN), and microRNA-122 (miR-122) into BM-MSCs, then used a well-established HCV, produced from the J6/JFH1-Huh7.5.1 culture system, to infect the cells. We observed that BM-MSCs transduction with CD81/OCLN or CD81/OCLN/miR-122 support HCV RNA replication and infectious virus production. We also found that the addition of exogenous vascular endothelial growth factor (VEGF) can enhance HCV infectivity in BM-MSCs, with HCV virus load up to 105 copies/mL. In conclusion, we identified the minimum essential factors required for HCV replication in tree shrew-derived nonhuman nonhepatic BM-MSCs. Further, we identified that exogenous addition of VEGF, and exogenous expression of CD81, OCLN, and miR-122, facilitates efficient viral replication and production of infectious particles. Our results describe a novel cell system capable of supporting the entire HCV life cycle, which may provide an essential tool for anti-HCV drug discovery, vaccine development, and study of pathogenesis.
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Affiliation(s)
- Caixia Lu
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
- Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China
- Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
| | - Yue Feng
- Yunnan Provincial Center for Molecular Medicine, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Xiaomei Sun
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
- Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China
- Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
| | - Na Li
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
- Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China
| | - Dexuan Kuang
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Wenguang Wang
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
- Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China
| | - Pinfen Tong
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
- Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China
| | - Yuanyuan Han
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
- Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China
| | - Xueshan Xia
- Yunnan Provincial Center for Molecular Medicine, Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Jiejie Dai
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
- Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China
- Yunnan Innovation Team of Standardization and Application Research in Tree Shrew, Kunming, China
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Wang Y, Dai J, Fang C, Zhang S, Wang J, Yin Y, Jiang S, Guo J, Lei F, Tu Y, Xing L, Hou J, Yu B. Predictors of plaque erosion in current smokers and non-current smokers presented with ST-segment elevation myocardial infarction: an optical coherence tomography study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1780] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Plaque erosion with subsequent coronary thrombosis is considered as an important cause of ST-segment elevation myocardial infarction (STEMI). Smoking is a major risk factor for acute coronary thrombosis. However, the relationship between current smoking status and plaque erosion has not been systematically investigated.
Purpose
The present study aimed to investigate predictors of plaque erosion in current smokers and non-current smokers with STEMI by using optical coherence tomography (OCT).
Methods
Between January 2015 to December 2017, a total of 1313 STEMI patients underwent pre-intervention OCT of culprit lesion were enrolled and divided into two groups based on current smoking status: current smoking group (n=713) and non-current smoking group (n=600). Using established criteria, quantitative and qualitative underlying plaque characteristics were assessed by OCT. Clinical, angiographic and OCT characteristics of all enrolled patients were recorded. Univariable and multivariable logistic regression analyses were used to identify predictors of plaque erosion in two groups.
Results
Plaque erosion were found in 30.9% (220/713) culprit lesions in current smoking group and 20.8% (125/600) of those in non-current smoking group detected by OCT. In multivariate regression analysis, the predictors that strongly related to plaque erosion in the current smoking group were nearby bifurcation (OR: 4.84; 95% CI:2.38–9.87; p<0.001); the minimum fiber cap thickness (FCT, OR:1.05; 95% CI:1.03–1.08; p<0.001); thin-cap fibroatheroma (TCFA, OR: 0.22; 95% CI: 0.07–0.67; p=0.007) and lipid core length (OR: 0.91; 95% CI: 0.84–0.97; p=0.007). The predictors in the non-current smoking group were nearby bifurcation (OR: 4.84; 95% CI: 2.38–9.87; p=0.006); the minimal FCT (OR: 1.09; 95% CI: 1.06–1.13; p<0.001); multi-vessel disease (MVD, OR: 0.43; 95% CI: 0.19–0.97; p=0.042) and dyslipidemia (OR: 0.34; 95% CI: 0.14–0.84; p=0.020).
Conclusions
Predictors of plaque erosion causing STEMI onset are different between current smokers and non-current smoker, with nearby bifurcation and thicker minimal FCT both predicting plaque erosion in two groups of patients.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): National Key Research and Development Program of China, National Natural Science Foundation of China.
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Affiliation(s)
- Y Wang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Dai
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - C Fang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - S Zhang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Wang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Y Yin
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - S Jiang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Guo
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - F Lei
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Y Tu
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - L Xing
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Hou
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - B Yu
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Zhai Y, Tian Y, Feng Q, Dai J, Men K, Zhou Z, Hui Z, Wang W. Dosimetric Comparison Between Volume Modulated Arc Therapy and Intensity Modulated Radiotherapy in Postoperative Radiation of Thymic Neoplasms. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wang J, Dai J, Fang C, Yu B. Coronary plaque characteristics associated with reduced thrombolysis in myocardial infarction flow in st-segment elevation myocardial infarction patients with plaque erosion. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
It has been reported that the lumen factors of the culprit lesions are related to Thrombolysis in Myocardial Infarction (TIMI) flow grade in ST-Segment–Elevation Myocardial Infarction (STEMI) patients, but the factors of reduced TIMI flow in plaque erosion have not been studied.
Methods
329 STEMI patients with plaque erosion who underwent pre-intervention optical coherence tomography after thrombectomy were included and divided into 2 groups according to preprocedural TIMI flow grade [TIMI 0–1 (n=219) and TIMI 2–3 (n=110)].
Results
The patients with older age (55.7±11.1yrs vs. 51.8±10.6yrs, P=0.003) and diabetes patients (18.3% vs. 8.2%, P=0.015) had poorer TIMI flow, and the patients with reduced TIMI flow grade have lower initial cTnI (1.2ng/mL vs. 2.1ng/mL, P=0.023). The lesion in the LAD had better blood flow than the lesion in RCA (P=0.003), and the patients in TIMI 0–1 grade had more lipid plaques (53.9% vs. 41.8%, P=0.039), more macrophage (59.8% vs. 41.8%, P=0.002), and more calcification (34.2% vs. 21.8%, P=0.020). There was no statistically significant difference in the descriptive indicators of lipid or lumen between the two groups. And In a multivariate logistic regression model, the independent correlation factors of reduced TIMI flow grade in erosion patients were age, diabetes mellitus, lesion vessel, and macrophage.
Conclusions
In STEMI patients with plaque erosion non-lumen factors greatly affect flow, which suggests that systemic treatment is as important as local treatment for plaque erosion.
Flow Chart
Funding Acknowledgement
Type of funding source: Foundation. Main funding source(s): National Natural Science Foundation of China (81827806, 81801861), National Key R&D Program of China (2016YFC1301100)
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Affiliation(s)
- J Wang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Dai
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - C Fang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - B Yu
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Fang C, Dai J, Zhang S, Wang J, Wang Y, Li L, Xing L, Hou J, Yu B. Morphological characteristics of plaque erosion with noncritical coronary stenosis: an optical coherence tomography study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1533] [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
Plaque erosion is a frequent and important mechanism of acute coronary thrombosis only secondary to plaque rupture. Recent studies suggested plaque erosion with noncritical stenosis could be treated conservatively that distinct from those with critical stenosis. However, characteristics of plaque erosions with different coronary stenosis remain unknown.
Purpose
The present study aimed to investigate morphological features of plaque erosions with different coronary stenosis using optical coherence tomography (OCT).
Methods
Consecutive ST-segment elevated myocardial infarction (STEMI) patients with OCT images of culprit lesion between August 2014 and December 2017 were enrolled and 348 cases presented with plaque erosion identified by OCT. Based on the severity of lumen area stenosis [calculated by (1-minimal lumen area/reference lumen area) * 100%], all culprit plaque erosions were divided into three groups: Group A (area stenosis<50%, n=50, 14.4%); Group B (50%≤area stenosis<75%, n=146, 42.0%); Group C (area stenosis≥75%, n=152, 43.7%). Clinical characteristics, lesion features detected by coronary angiography and OCT were compared among three groups.
Results
Of all 348 STEMI patients with plaque erosions, patients in Group A were youngest (p=0.008) and had the lowest frequency of hypertension (p=0.029) as compared with those in Group B and C. Angiographic analysis showed 72.0% of plaque erosions in Group A located in LAD, while 67.8% in Group B and 53.9% in Group C (p=0.039). OCT findings (Figure 1-A) showed the prevalence of fibrous plaque was significantly highest in Group A than those in Group B and C (82.0% vs. 54.8% vs. 34.9%, p<0.001), whereas lipid rich plaque was most frequent in Group C (16.0% vs. 43.8% vs. 62.5%, p<0.001). The prevalence of macrophage (p<0.001), microvessel (p=0.009) and cholesterol crystals (p<0.001) increased gradually from plaque erosion with lumen area stenosis <50% to 50–75% to ≥75%. Notably, compared with Group B and C, nearby bifurcation was most common in Group A (72.0% vs. 67.1% vs. 55.3%, p=0.036). Multivariable regression analyses (Figure 1-B) showed fibrous plaque and nearby bifurcation were independently associated with plaque erosion with noncritical stenosis (area stenosis<75%).
Conclusion
56.3% plaque erosion in STEMI patients presented with noncritical stenosis, having distinct morphological features from erosion with critical stenosis. Fibrous plaque and nearby bifurcation were independently associated with the presence of noncritically stenotic plaque erosion, remaining a desire to tailor treatment therapy to individual patients.
Figure 1
Funding Acknowledgement
Type of funding source: Foundation. Main funding source(s): National Key R&D Program of China
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Affiliation(s)
- C Fang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Dai
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - S Zhang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Wang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Y Wang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - L Li
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - L Xing
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Hou
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - B Yu
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Li T, Dai J. Application of Visual Feedback Coaching Bar in Deep Inspiration Breath Holding for Left Breast Cancer Radiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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48
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Wang J, Dai J, Fang C, Yu B. Relation of microchannel identified by optical coherence tomography to clinical, angiography and other plaque morphological characteristics in ST-segment Elevation myocardial infarction patients. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2467] [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
Previous studies have suggested that Microchannel (MC) is associated with plaque progression and vulnerability. Optical coherence tomography (OCT) could provide a chance to directly visualize plaque neovascularization in vivo.
Methods
1268 STEMI patients who underwent OCT examination of culprit lesion were included and divided into MC group (the culprit plaque with MC, n=560) and no-MC group (the culprit plaque without MC, n=708). MC was defined as a no-signal tubuloluminal structure on the cross-sectional optical coherence tomographic image. Clinical, angiography and other plaque morphological characteristics were compared between the two groups. Logistic regression analysis was used to identify independent predictors of MC in overall. In addition, the difference of predictors on MC was found in plaque rupture (PR) and plaque erosion (PE).
Results
Significant differences between MC group and no-MC group were found in the frequency of thin-cap fibroatheroma (74.6% vs 64.4%, p<0.001), lipid plaque (91.8% vs 82.9%, p<0.001), lipid core length (13.7±6.5mm vs 12.6±6.3mm, p=0.006) and the minimal lumen area (MLA, 1.95±0.98mm2 vs 2.10±1.58mm2, p=0.046). In MC group, the other vulnerable plaque morphological characteristics, such as macrophage (88.8% vs 75.1%, p<0.001), cholesterol crystal (39.6% vs 32.9%, p=0.013), spotty calcification (38.6% vs 29.5%, p<0.001) were more frequent. And compared with MLA the more locations of the culprit lesion in MC group was proximal (proximal, 47.3% vs 38.1%, at MLA, 38.2% vs 44.2%, distal, 14.5% vs 17.7%, p=0.004).The difference of Hemoglobin (Hb, 147.5±16.9g/L vs 144.1±18.2g/L, p<0.001), lipidemia (TC, 188.7±43.6mmol/L vs 180.8±40.0mmol/L, p<0.001, LDL-C, 121.5±37.4mmol/L vs 115.7±36.8mmol/L, p=0.005, and TC/HDL, 4.0±1.6 vs 3.8±1.0, p<0.001), and hypertension (50.7% vs 44.2%, p=0.021) between 2 groups was statistically significant. Multivariable logistic regression models showed 7 independent parameters associated with MC in culprit plaque of overall: hypertension, Hb, TC, MLA, lesion location (compared with MLA), lipid core length, macrophage, spotty calcification. In addition, Hb, TC and MLA were common predictors of MC in PR and PE, however, the predictive effect of MLA on MC was opposite in PR [OR (95% CI)=1.266 (1.095–1.463), p=0.001] and PE [OR (95% CI)=0.742 (0.597–0.922), p=0.007].
Conclusions
MC in culprit plaque is associated with more lipid (especially cholesterol), higher Hb, hypertension, lesion location (compared with MLA) and the other vulnerable plaque morphological characteristics. The predictors of MC were different in plaque rupture and plaque erosion.
Flow chart
Funding Acknowledgement
Type of funding source: Foundation. Main funding source(s): National Natural Science Foundation of China (81827806, 81801861); National Key R&D Program of China (2016YFC1301100)
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Affiliation(s)
- J Wang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Dai
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - C Fang
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - B Yu
- The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Xue DJ, Chen J, Huang WX, Lin L, Dai J. [One case of extremely severe burn combined with stillbirth and multiple organ dysfunction syndrome in the third trimester of pregnancy]. Zhonghua Shao Shang Za Zhi 2020; 36:607-609. [PMID: 32842412 DOI: 10.3760/cma.j.cn501120-20190416-00192] [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
One 24 years old female patient who suffered extremely severe burn in the third trimester of pregnancy was admitted to the Department of Burns and Skin Repair Surgery of the Third Affiliated Hospital of Wenzhou Medical University on 9th May, 2015. Intrauterine distress occurred after injury and stillbirth was confirmed within 12 hours. In cooperation with the obstetrician, the labor was induced on post injury day (PID) 5. Septic shock and multiple organ dysfunction syndrome occurred on PID 8. Through treatments including anti-infection, ventilator-assisted ventilation, cardiotonic diuresis, and escharectomy and skin grafting, the patient was finally cured. This case indicates that it is crucial to grasp the right time and choose a reasonable induction of labor to deal with stillbirth. The scheme of transvaginal induction of labor after shock is a worthy question to explore. The main characteristics of this patient include the extreme paroxysmal changes in breath, circulation, and urine volume within 24 hours after induced labor, which should be monitored dynamically for effective and timely adjustment of respiratory circulation support. This may be another key point for the rescue of this type of patient. To seize the opportunities to perform escharectomy, cover the wound with xenogenic skin graft, and perform skin grafting in time for wound repair remain the top priority.
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Affiliation(s)
- D J Xue
- Department of Burns and Skin Repair Surgery, the Third Affiliated Hospital of Wenzhou Medical University, Rui'an 325200, China
| | - J Chen
- Department of Burns and Skin Repair Surgery, the Third Affiliated Hospital of Wenzhou Medical University, Rui'an 325200, China
| | - W X Huang
- Department of Burns and Skin Repair Surgery, the Third Affiliated Hospital of Wenzhou Medical University, Rui'an 325200, China
| | - L Lin
- Department of Burns and Skin Repair Surgery, the Third Affiliated Hospital of Wenzhou Medical University, Rui'an 325200, China
| | - J Dai
- Department of Burns and Skin Repair Surgery, the Third Affiliated Hospital of Wenzhou Medical University, Rui'an 325200, China
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Zhang J, Xiao H, Bi Y, Long Q, Gong Y, Dai J, Sun M, Cun W. Characteristics of the tree shrew humoral immune system. Mol Immunol 2020; 127:175-185. [PMID: 32992149 DOI: 10.1016/j.molimm.2020.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 07/03/2020] [Revised: 09/02/2020] [Accepted: 09/07/2020] [Indexed: 12/12/2022]
Abstract
Preclinical studies require an immune response similar to that of humans in a small animal model that is convenient to operate. Based on genome alignment, tree shrews are small animals considered to be more similar to primates than are rodents, and many human disease models have been established with tree shrews. However, the characteristics of the humoral immune response of tree shrews remain to be elucidated. In this study, the genetic sequence of the heavy chain constant region of tree shrew immunoglobulin (Ig) was complemented, and the results of immunoglobulin domain homology and transcriptome analysis showed that the tree shrew genome encodes only four classes of antibodies and does not encode IgD. The oldest IgM antibody has the highest homology with primates. After the complete sequence of each type of antibody was obtained, the tree shrew antibody protein was further expressed and purified by in vitro recombination, and an IgG quantitative evaluation system was established. The highly effective immuno protective effect induced by HSV-1 infection and the significant bactericidal effect induced by Neisseria meningitidis group C polysaccharide immunization showed that tree shrews exhibited immune responses more similar to humans than to mice. This may provide better predictive value for vaccine preclinical research.
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Affiliation(s)
- Jingjing Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, China; Yunnan Key Laboratory of Vaccine Research and Development of Severe Infectious Disease, 935 Jiaoling Road, Kunming, 650118, Yunnan, China
| | - Hongjian Xiao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, China; Yunnan Key Laboratory of Vaccine Research and Development of Severe Infectious Disease, 935 Jiaoling Road, Kunming, 650118, Yunnan, China
| | - Yanwei Bi
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, China; Yunnan Key Laboratory of Vaccine Research and Development of Severe Infectious Disease, 935 Jiaoling Road, Kunming, 650118, Yunnan, China
| | - Qiong Long
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, China; Yunnan Key Laboratory of Vaccine Research and Development of Severe Infectious Disease, 935 Jiaoling Road, Kunming, 650118, Yunnan, China
| | - Yue Gong
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, China; Yunnan Key Laboratory of Vaccine Research and Development of Severe Infectious Disease, 935 Jiaoling Road, Kunming, 650118, Yunnan, China
| | - Jiejie Dai
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, China; Yunnan Key Laboratory of Vaccine Research and Development of Severe Infectious Disease, 935 Jiaoling Road, Kunming, 650118, Yunnan, China
| | - Ming Sun
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, China; Yunnan Key Laboratory of Vaccine Research and Development of Severe Infectious Disease, 935 Jiaoling Road, Kunming, 650118, Yunnan, China
| | - Wei Cun
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, China; Yunnan Key Laboratory of Vaccine Research and Development of Severe Infectious Disease, 935 Jiaoling Road, Kunming, 650118, Yunnan, China.
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