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Tian S, Shi L, Ren Y, van der Mei HC, Busscher HJ. A normalized parameter for comparison of biofilm dispersants in vitro. Biofilm 2024; 7:100188. [PMID: 38495770 PMCID: PMC10943042 DOI: 10.1016/j.bioflm.2024.100188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/12/2024] [Accepted: 02/28/2024] [Indexed: 03/19/2024] Open
Abstract
Dispersal of infectious biofilms increases bacterial concentrations in blood. To prevent sepsis, the strength of a dispersant should be limited to allow the immune system to remove dispersed bacteria from blood, preferably without antibiotic administration. Biofilm bacteria are held together by extracellular polymeric substances that can be degraded by dispersants. Currently, comparison of the strength of dispersants is not possible by lack of a suitable comparison parameter. Here, a biofilm dispersal parameter is proposed that accounts for differences in initial biofilm properties, dispersant concentration and exposure time by using PBS as a control and normalizing outcomes with respect to concentration and time. The parameter yielded near-identical values based on dispersant-induced reductions in biomass or biofilm colony-forming-units and appeared strain-dependent across pathogens. The parameter as proposed is largely independent of experimental methods and conditions and suitable for comparing different dispersants with respect to different causative strains in particular types of infection.
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Affiliation(s)
- Shuang Tian
- University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713, AV, Groningen, the Netherlands
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, PR China
| | - Linqi Shi
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, PR China
| | - Yijin Ren
- University of Groningen and University Medical Center Groningen, Department of Orthodontics, Hanzeplein 1, 9700, RB, Groningen, the Netherlands
| | - Henny C. van der Mei
- University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713, AV, Groningen, the Netherlands
| | - Henk J. Busscher
- University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713, AV, Groningen, the Netherlands
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Tian S, Chen L, Wang X, Li G, Fu Z, Ji Y, Lu J, Wang X, Shan S, Bi Y. Vision matters for shape representation: Evidence from sculpturing and drawing in the blind. Cortex 2024; 174:241-255. [PMID: 38582629 DOI: 10.1016/j.cortex.2024.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/23/2024] [Accepted: 02/27/2024] [Indexed: 04/08/2024]
Abstract
Shape is a property that could be perceived by vision and touch, and is classically considered to be supramodal. While there is mounting evidence for the shared cognitive and neural representation space between visual and tactile shape, previous research tended to rely on dissimilarity structures between objects and had not examined the detailed properties of shape representation in the absence of vision. To address this gap, we conducted three explicit object shape knowledge production experiments with congenitally blind and sighted participants, who were asked to produce verbal features, 3D clay models, and 2D drawings of familiar objects with varying levels of tactile exposure, including tools, large nonmanipulable objects, and animals. We found that the absence of visual experience (i.e., in the blind group) led to stronger differences in animals than in tools and large objects, suggesting that direct tactile experience of objects is essential for shape representation when vision is unavailable. For tools with rich tactile/manipulation experiences, the blind produced overall good shapes comparable to the sighted, yet also showed intriguing differences. The blind group had more variations and a systematic bias in the geometric property of tools (making them stubbier than the sighted), indicating that visual experience contributes to aligning internal representations and calibrating overall object configurations, at least for tools. Taken together, the object shape representation reflects the intricate orchestration of vision, touch and language.
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Affiliation(s)
- Shuang Tian
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Lingjuan Chen
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Xiaoying Wang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Guochao Li
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Ze Fu
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Yufeng Ji
- Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jiahui Lu
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Xiaosha Wang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Shiguang Shan
- Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yanchao Bi
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing, China; Beijing Key Laboratory of Brain Imaging and Connectomics, Beijing Normal University, Beijing, China; Chinese Institute for Brain Research, Beijing, China.
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Zhou Y, Wu X, Qin C, Tong Y, Tian S, Huang X. Effect of Cardiac Rehabilitation Nursing on Patients with Myocardial Infarction. Altern Ther Health Med 2024:AT10294. [PMID: 38607218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Background Acute myocardial infarction is the myocardial necrosis caused by acute and persistent ischemia and hypoxia of coronary arteries. It can be complicated with arrhythmia, shock or heart failure, and often can endanger life. The disease is most common in Europe and the United States, where about 1.5 million heart attacks occur each year. China has shown a clear upward trend in recent years, with at least 500 000 new cases and at least 2 million new cases every year. Cardiac rehabilitation nursing is a kind of comprehensive nursing that aims to restore the body function of patients with myocardial infarction. Objective To explore the therapeutic effect of cardiac rehabilitation nursing in patients with myocardial infarction. Design This was a case-control retrospective study. Setting This study was conducted in the Department of Heart Center, Shanghai Sixth People's Hospital. Participants 86 patients with acute myocardial infarction admitted to the Heart Center of Shanghai Sixth People's Hospital from January 2019 to August 2022 were selected and randomly divided into observation and control groups, with 43 cases in each group. Patients aged from 40-79 years old and were confirmed to have acute myocardial infarction by examination and histopathological analysis. Interventions The observation group was given cardiac rehabilitation nursing, including psychological nursing, rehabilitation training, cardiac rehabilitation training, diet and defecation care and health education, and the control group was assigned routine nursing. Primary Outcome measures (1) anxiety and depression were assessed by Zung's self-rating anxiety scale and self-rating depression scale (2) cardiac function was assessed by left ventricular ejection fraction and left ventricular end-diastolic volume (3) 6-minute walk distance (4) incidence of complications (5) length of hospital stay (6) levels of inflammatory factors and N-terminal pro-brain natriuretic peptide concentration (7) incidence of arrhythmia. Results After the intervention, there was still no significance in either group's left ventricular end-diastolic volume level [(72.24±8.47) vs (71.98±8.35)] (P = .473). However, the anxiety and depression scores [(42.10±5.17) and (44.01±4.53) vs (44.01±4.53) and (51.37±4.85)], complication rate (6.9% vs 16.2%), length of hospital stay [(18.66±7.03) vs (26.11±8.14)], inflammatory factor levels [(1.95±0.51) and (319.47±33.72) vs (2.71±0.45) and (451.07±39.54)], serum N-terminal pro-brain natriuretic peptide level [(2525.8±1236.5) vs (3064.4±859.0)], and incidence of arrhythmia (3 cases, 2 cases, 1 case and 1 case vs 5 cases, 6 cases, 8 cases and 7 vases) in the observation group were lower compared to the control group (P = .000, P = .002, P=0.023, P = .045, P = .032, P = .011, and P = .027). The left ventricular ejection fraction level and 6-minute walk distance of the observation group [(60.39±5.38) and (347.31±21.01) vs (54.97±6.24) and (320.24±21.71)] were better relative to the control group (P = .037 and P = .000). Conclusion For patients with myocardial infarction, the implementation of cardiac rehabilitation nursing can effectively alleviate the anxiety and depression of patients, decrease the incidence of complications as well as inflammatory factors levels, and further shorten the hospital stay of patients, with high safety. Our study provides a clinical reference for patients with myocardial infarction w who need nursing care.
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Wang Y, Shi Q, Shi ZY, Tian S, Zhang MC, Shen R, Fu D, Dong L, Yi HM, Ouyang BS, Mu RJ, Cheng S, Wang L, Xu PP, Zhao WL. Biological signatures of the International Prognostic Index in diffuse large B-cell lymphoma. Blood Adv 2024; 8:1587-1599. [PMID: 38170757 PMCID: PMC10987882 DOI: 10.1182/bloodadvances.2023011425] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 11/14/2023] [Accepted: 12/03/2023] [Indexed: 01/05/2024] Open
Abstract
ABSTRACT Diffuse large B-cell lymphoma (DLBCL) is a highly aggressive subtype of lymphoma with clinical and biological heterogeneity. The International Prognostic Index (IPI) shows great prognostic capability in the era of rituximab, but the biological signatures of IPI remain to be discovered. In this study, we analyzed the clinical data in a large cohort of 2592 patients with newly diagnosed DLBCL. Among them, 1233 underwent DNA sequencing for oncogenic mutations, and 487 patients underwent RNA sequencing for lymphoma microenvironment (LME) alterations. Based on IPI scores, patients were categorized into 4 distinct groups, with 5-year overall survival of 41.6%, 55.3%, 71.7%, and 89.7%, respectively. MCD-like subtype was associated with age of >60 years, multiple extranodal involvement, elevated serum lactate dehydrogenase (LDH), and IPI scores ranging from 2 to 5, whereas ST2-like subtype showed an opposite trend. Patients with EZB-like MYC+ and TP53Mut subtypes exhibited poor clinical outcome independent of the IPI; integrating TP53Mut into IPI could better distinguish patients with dismal survival. The EZB-like MYC-, BN2-like, N1-like, and MCD-like subtypes had inferior prognosis in patients with IPI scores of ≥2, indicating necessity for enhanced treatment. Regarding LME categories, the germinal center-like LME was more prevalent in patients with normal LDH and IPI scores of 0 to 1. The mesenchymal LME served as an independent protective factor, whereas the germinal center-like, inflammatory, and depleted LME categories correlated with inferior prognosis for IPI scores of 2 to 5. In summary, our work explored the biological signatures of IPI, thus providing useful rationale for future optimization of the IPI-based treatment strategies with multi-omics information in DLBCL.
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Affiliation(s)
- Yue Wang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics; National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing Shi
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics; National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zi-Yang Shi
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics; National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuang Tian
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics; National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mu-Chen Zhang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics; National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rong Shen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics; National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Di Fu
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics; National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lei Dong
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong-Mei Yi
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bin-Shen Ouyang
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rong-Ji Mu
- Clinical Research Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shu Cheng
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics; National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Wang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics; National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Laboratory of Molecular Pathology, Shanghai, China
| | - Peng-Peng Xu
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics; National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei-Li Zhao
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics; National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Laboratory of Molecular Pathology, Shanghai, China
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Wang Y, Zhang P, Tian S. Tomato leaf disease detection based on attention mechanism and multi-scale feature fusion. Front Plant Sci 2024; 15:1382802. [PMID: 38654901 PMCID: PMC11035761 DOI: 10.3389/fpls.2024.1382802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 03/25/2024] [Indexed: 04/26/2024]
Abstract
When detecting tomato leaf diseases in natural environments, factors such as changes in lighting, occlusion, and the small size of leaf lesions pose challenges to detection accuracy. Therefore, this study proposes a tomato leaf disease detection method based on attention mechanisms and multi-scale feature fusion. Firstly, the Convolutional Block Attention Module (CBAM) is introduced into the backbone feature extraction network to enhance the ability to extract lesion features and suppress the effects of environmental interference. Secondly, shallow feature maps are introduced into the re-parameterized generalized feature pyramid network (RepGFPN), constructing a new multi-scale re-parameterized generalized feature fusion module (BiRepGFPN) to enhance feature fusion expression and improve the localization ability for small lesion features. Finally, the BiRepGFPN replaces the Path Aggregation Feature Pyramid Network (PAFPN) in the YOLOv6 model to achieve effective fusion of deep semantic and shallow spatial information. Experimental results indicate that, when evaluated on the publicly available PlantDoc dataset, the model's mean average precision (mAP) showed improvements of 7.7%, 11.8%, 3.4%, 5.7%, 4.3%, and 2.6% compared to YOLOX, YOLOv5, YOLOv6, YOLOv6-s, YOLOv7, and YOLOv8, respectively. When evaluated on the tomato leaf disease dataset, the model demonstrated a precision of 92.9%, a recall rate of 95.2%, an F1 score of 94.0%, and a mean average precision (mAP) of 93.8%, showing improvements of 2.3%, 4.0%, 3.1%, and 2.7% respectively compared to the baseline model. These results indicate that the proposed detection method possesses significant detection performance and generalization capabilities.
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Affiliation(s)
- Yong Wang
- School of Computer Science and Technology, Zhejiang University of Technology, Hangzhou, China
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Gong HL, Tian S, Ding H, Tao L, Wang L, Wang J, Wang T, Zhang M, Shi Y, Xu CZ, Wu CP, Wang SZ, Zhou L. [Clinical efficacy of induction chemoimmunotherapy for locally advanced hypopharyngeal carcinoma: a prospective phase Ⅱ study]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2024; 59:350-356. [PMID: 38599645 DOI: 10.3760/cma.j.cn115330-20240129-00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Objective: To evaluate the objective response rate (ORR) of induction chemoimmunotherapy with camrelizumab plus TPF (docetaxel, cisplatin, and capecitabine) for locally advanced hypopharyngeal squamous cell carcinoma (LA HSCC) and potential predictive factors for ORR. Methods: A single-center, prospective, phase 2 and single-arm trial was conducted for evaluating antitumor activity of camrelizumab+TPF(docetaxel+cisplatin+capecitabine) for LA HSCC between May 21, 2021 and April 15, 2023, patients admitted to the Eye & ENT Hospital affiliated with Fudan University. The primary endpoint was ORR, and enrolled patients with LA HSCC at T3-4N0-3M0 received induction chemoimmunotherapy for three cycles: camrelizumab 200 mg day 1, docetaxel 75 mg/m2 day 1, cisplatin 25 mg/m2 days 1-3, and capecitabine 800 mg/m2 days 1-14. Patients were assigned to radioimmunotherapy when they had complete response or partial response (PR)>70% (Group A), or assigned to surgery plus adjuvant radiotherapy/chemoradiotherapy when they had PR≤70% (Group B), and the responses were defined by using tumor volume evaluation system. Tumor diameter was also used to assess the treatment responses by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. Use SPSS 23.0 software was used to analyze the data. Results: A total of 51 patients were enrolled who underwent the induced chemoimmunotherapy for three cycles, and all were males, aged 35-69 years old. After three cycles of induction immunochemotherapy, 42 (82.4%) patients existed in Group A (complete response or PR>70%) and 9 patients (17.6%) in Group B (PR≤70%), the ORR was 82.4%. The primary endpoint achieved expected main research objectives. Compared to the patients of Group A, the patients of Group B showed the higher T stage and the larger volume of primary tumor before induced immunochemotherapy, and also had the less regression of tumor volume after induced immunochemotherapy (all P<0.05). The optimal cutoff value of pre-treatment tumor volume for predicting ORR was 39 cm3. The T stage (OR=12.71, 95%CI: 1.4-112.5, P=0.022) and the volume (OR=7.1, 95%CI: 1.4-36.8, P=0.018) of primary tumor were the two main factors affecting ORR rate of induction chemoimmunotherapy. Conclusion: The induction chemoimmunotherapy with camrelizumab plus TPF shows an encouraging antitumor efficacy in LA HSCC.
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Affiliation(s)
- H L Gong
- Department of Otorhinolaryngology Head and Neck Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - S Tian
- Department of Radiation Oncology, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - H Ding
- Department of Radiation Oncology, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - L Tao
- Department of Otorhinolaryngology Head and Neck Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - L Wang
- Department of Radiation Oncology, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - J Wang
- Department of Radiation Oncology, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - T Wang
- Department of Radiation Oncology, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - M Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - Y Shi
- Department of Otorhinolaryngology Head and Neck Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - C Z Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - C P Wu
- Department of Otorhinolaryngology Head and Neck Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - S Z Wang
- Department of Radiation Oncology, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - L Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
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Tian S, Nie Q, Chen H, Liang L, Hu H, Tang S, Yang J, Liu Y, Yin H. Synthesis, characterization and irradiation enhances anticancer activity of liposome-loaded iridium(III) complexes. J Inorg Biochem 2024; 256:112549. [PMID: 38579631 DOI: 10.1016/j.jinorgbio.2024.112549] [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: 01/24/2024] [Revised: 03/18/2024] [Accepted: 03/31/2024] [Indexed: 04/07/2024]
Abstract
Herein, we synthesized and characterized two novel iridium (III) complexes: [Ir(bzq)2(PPD)](PF6) (4a, with bzq = deprotonated benzo[h]quinoline and PPD = pteridino[6,7-f][1,10]phenanthroline-11,13-diamine) and [Ir(piq)2(PPD)](PF6) (4b, with piq = deprotonated 1-phenylisoquinoline). The anticancer efficacy of these complexes, 4a and 4b, was investigated using 3-(4,5-dimethylthiazole)-2,5-diphenltetraazolium bromide (MTT). Complex 4a exhibited no cytotoxic activity, while 4b demonstrated moderate efficacy against SGC-7901, A549, and HepG2 cancer cells. To enhance their anticancer potential, we explored two strategies: (I) light irradiation and (II) encapsulation of the complexes in liposomes, resulting in the formation of 4alip and 4blip. Both strategies significantly increased the ability of 4a, 4b to kill cancer cells. The cellular studies indicated that both the free complexes 4a, 4b and their liposomal forms 4alip and 4blip effectively inhibited cell proliferation. The cell cycle arrest analysis uncovered 4alip and 4blip arresting cell growth in the S period. Additionally, we investigated apoptosis and ferroptosis pathways, observing an increase in malondialdehyde (MDA) levels, a reduction of glutathione (GSH), a down-regulation of GPX4 (glutathione peroxidase) expression, and lipid peroxidation. The effects on mitochondrial membrane potential and intracellular Ca2+ concentrations were also examined, revealing that both light-activated and liposomal forms of 4alip and 4blip caused a decline in mitochondrial membrane potential and an enhancement in intracellular Ca2+ levels. In conclusion, these complexes and them encapsulated liposomes induce cell death through apoptosis and ferroptosis.
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Affiliation(s)
- Shuang Tian
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Qianying Nie
- Department of Microbiology and Immunology, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Haomin Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Lijuan Liang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Huiyan Hu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Shuanghui Tang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jiawan Yang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yunjun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Hui Yin
- Department of Microbiology and Immunology, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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Qiao Q, Tian S, Zhang Y, Che L, Li Q, Qu Z, Wang W. A Ketogenic Diet may Improve Cognitive Function in Rats with Temporal Lobe Epilepsy by Regulating Endoplasmic Reticulum Stress and Synaptic Plasticity. Mol Neurobiol 2024; 61:2249-2264. [PMID: 37870676 DOI: 10.1007/s12035-023-03659-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/15/2023] [Indexed: 10/24/2023]
Abstract
A ketogenic diet (KD) is often used in the treatment of refractory epilepsy. Many studies have found that it also has a positive impact on cognitive comorbidities, but the specific mechanism remains unclear. In many disease models, endoplasmic reticulum stress (ERS) and synaptic plasticity is considered a new therapeutic target for improving cognitive impairment, and it has become a research focus in recent years. Recently, studies have found that a KD has a certain regulatory effect on both ERS and synaptic plasticity, but this result has not been confirmed in epilepsy. To investigate the effect of a KD on ERS and synaptic plasticity. In this study, a rat model of temporal lobe epilepsy (TLE) induced by lithium chloride-pilocarpine was used. After the model was successfully established, the rats in each group were fed a normal diet or a KD for 28 days, and the effect of a KD on the latency and seizure frequency of spontaneous recurrent seizures (SRSs) was observed via video monitoring. Subsequently, a Morris water maze was used to evaluate the spatial learning and memory abilities of the rats in each group; the ultrastructure of the ER and the synapses of the hippocampus were observed by transmission electron microscopy, and the dendritic spine density of the hippocampus was analysed by Golgi staining. Long-term potentiation (LTP) was used to detect the synaptic plasticity of the rats' hippocampi, and the expression of ERS-related proteins and synapse-related proteins was detected by Western blotting. A KD effectively reduced the frequency of SRSs in rats with TLE and improved their learning and memory impairment. Further investigations found that a KD inhibited the up-regulation of glucose-regulated protein 78, phospho-protein kinase-like ER kinase, phosphorylated α subunit of eukaryotic initiation factor 2, activating transcription factor 4 and C/EBP homologous protein expression in the hippocampi of rats with TLE and protected the ultrastructure of the neuronal ER, suggesting that a KD suppressed excessive ERS induced by epilepsy. Concurrently, we also found that a KD not only improved the synaptic ultrastructure and increased the density of dendritic spines in rats with TLE but also reversed the epilepsy-induced LTP deficit to some extent. More importantly, the expression of postsynaptic density protein 95, synaptotagmin-1 and synaptosomal-associated protein 25 in the hippocampi of rats with epilepsy was significantly increased after KD intervention. The study findings indicate that a KD improves learning and memory impairment in rats with epilepsy, possibly by regulating ERS and synaptic plasticity.
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Affiliation(s)
- Qi Qiao
- Key Laboratory of Neurology of Hebei Province, Department of Neurology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, China
| | - Shuang Tian
- Department of Neurology, Shijiazhuang People's Hospital, Shijiazhuang, 050000, China
| | - Yuan Zhang
- Department of Neurology, Hebei General Hospital, Shijiazhuang, 050000, China
| | - Liqin Che
- Key Laboratory of Neurology of Hebei Province, Department of Neurology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, China
| | - Qing Li
- Key Laboratory of Neurology of Hebei Province, Department of Neurology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, China
| | - Zhenzhen Qu
- Key Laboratory of Neurology of Hebei Province, Department of Neurology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, China.
| | - Weiping Wang
- Key Laboratory of Neurology of Hebei Province, Department of Neurology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, China.
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Hu H, Zhang F, Sheng Z, Tian S, Li G, Tang S, Niu Y, Yang J, Liu Y. Synthesis and mitochondria-localized iridium (III) complexes induce cell death through pyroptosis and ferroptosis pathways. Eur J Med Chem 2024; 268:116295. [PMID: 38437750 DOI: 10.1016/j.ejmech.2024.116295] [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: 01/16/2024] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 03/06/2024]
Abstract
This paper introduces a new ligand, 4,6-dichloro-5-(1H-imidazo [4,5-f]phenanthroline-2-yl)pyrimidin-2-amine (DPPA), and its corresponding new iridium(III) complexes: [Ir(ppy)2(DPPA)](PF6) (2a) (where ppy represents deprotonated 2-phenylpyridine), [Ir(bzq)2(DPPA)](PF6) (2b) (with bzq indicating deprotonated benzo[h]quinoline), and [Ir(piq)2(DPPA)](PF6) (2c) (piq denoting deprotonated 1-phenylisoquinoline). The cytotoxic effects of both DPPA and 2a, 2b, and 2c were evaluated against human lung carcinoma A549, melanoma B16, colorectal cancer HCT116, human hepatocellular carcinoma HepG2 cancer cell lines, as well as the non-cancerous LO2 cell line using the 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method. While DPPA exhibited moderate anticancer activity toward A549, B16, HCT116 and HepG2 cells, complexes 2a, 2b, and 2c displayed remarkable efficacy against A549, B16, and HCT116 cells. The cell colonies and wound healing were investigated. Moreover, various aspects of the anticancer mechanisms were explored. The cell cycle analyses revealed that the complexes block cell proliferation of A549 cells during the S phase. Complex 2c induce an early apoptosis, while 2a and 2b cause a late apoptosis. The interaction of 2a, 2b and 2c with endoplasmic reticulum and mitochondria was identified, leading to elevated ROS and Ca2+ amounts. This resulted in a reduced mitochondrial membrane potential, mitochondrial permeability transition pore opening, and an increase of cytochrome c. Also, ferroptosis was investigated through measurements of intracellular glutathione (GSH), malondialdehyde (MDA), and recombinant glutathione peroxidase (GPX4) protein expression. The pyroptosis was explored via cell morphology, release of lactate dehydrogenase (LDH) and expression of pyroptosis-related proteins. RNA sequencing was applied to examine the signaling pathways. Western blot analyses illuminated that the complexes regulate the expression of Bcl-2 family proteins. Additionally, an in vivo antitumor study demonstrated that complex 2c exhibited a remarkable inhibitory rate of 58.58% in restraining tumor growth. In summary, the findings collectively suggest that the iridium(III) complexes induce cell death via ferroptosis, apoptosis by a ROS-mediated mitochondrial dysfunction pathway and GSDMD-mediated pyroptosis.
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Affiliation(s)
- Huiyan Hu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Fan Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Zhujun Sheng
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Shuang Tian
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Gechang Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Shuanghui Tang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Yajie Niu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Jiawan Yang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Yunjun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China.
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10
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Guo X, Zhao E, Guan Z, Li W, Zhang J, Tian S, Yao Y. A retrospective study of the effects of uterine manipulators on prognosis in patients with cervical cancer. J Int Med Res 2024; 52:3000605241233966. [PMID: 38553028 PMCID: PMC10981227 DOI: 10.1177/03000605241233966] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 01/29/2024] [Indexed: 04/02/2024] Open
Abstract
OBJECTIVE This retrospective study investigated the effects of uterine manipulator use during minimally invasive radical hysterectomy on prognosis in patients with cervical cancer. METHODS We collected clinical data on 762 patients with stage IA2 to IIB cervical cancer who underwent radical hysterectomy and pelvic lymphadenectomy in Chinese PLA General Hospital from 2009 to 2019. Kaplan-Meier analysis and log-rank tests were used to compare the 5-year overall survival rates between patients treated with and without a uterine manipulator. RESULTS Patient demographics did not differ between the two groups. In addition, the incidence of lymphovascular space invasion, tumor size, pathologic types, the International Federation of Gynecology and Obstetrics stage, the histologic grade, and the rate of lymphatic metastases did not differ between the groups. Meanwhile, perioperative clinical indicators were similar in the groups. Furthermore, no significant differences in 5-year survival rates and survival curves were recorded between the groups among both all patients (84.5% vs. 85.6%) and early-stage patients (89.1% vs. 89.2%). CONCLUSIONS The use of uterine manipulators during minimally invasive radical hysterectomy for cervical cancer did not affect clinicopathological markers or increase the risk of death.
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Affiliation(s)
- Xinmeng Guo
- Department of Obstetrics and Gynecology, the First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Beijing, China
- College of Medicine, Nankai University, 94 Weijin Road, Tianjin, China
| | - Enfeng Zhao
- Department of Obstetrics and Gynecology, the First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Beijing, China
| | - Zheng Guan
- Department of Obstetrics and Gynecology, the First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Beijing, China
| | - Weiping Li
- Department of Obstetrics and Gynecology, the First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Beijing, China
| | - Jinning Zhang
- Department of Obstetrics and Gynecology, the First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Beijing, China
| | - Shuang Tian
- Department of Obstetrics and Gynecology, the First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Beijing, China
| | - Yuanqing Yao
- Department of Obstetrics and Gynecology, the First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Beijing, China
- College of Medicine, Nankai University, 94 Weijin Road, Tianjin, China
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11
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Tian S, Ren L, Liu C, Wang Z. Atractylenolide II Suppresses Glycolysis and Induces Apoptosis by Blocking the PADI3-ERK Signaling Pathway in Endometrial Cancer Cells. Molecules 2024; 29:939. [PMID: 38474453 DOI: 10.3390/molecules29050939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/12/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024] Open
Abstract
Atractylenolide II (AT-II), the major bioactive compound of Atractylodes macrocephala, exhibits anti-cancer activity against many types of tumors, but the roles and the potential mechanisms in endometrial cancer remain unclear. In the present study, AT-II treatment was found to significantly suppress RL95-2 and AN3CA cell proliferation and glycolysis, and induced their apoptosis by inactivating the ERK signaling pathway, accompanied by the changing expression of the glycolytic key enzymes and apoptotic-related proteins. Peptidyl arginine deiminase 3 (PADI3), as the candidate target gene of AT-II, was highly expressed in the endometrial cancer tissues and associated with a poor prognosis according to bioinformatics analysis. PADI3 knockdown inhibited proliferation and glycolysis in endometrial cancer cells and induced cell apoptosis. Furthermore, AT-II negatively regulated the expression of PADI3, and PADI3 overexpression reversed the effects of AT-II on endometrial cancer cells. Our findings suggested that the anti-cancer function of AT-II is associated with the suppression of glycolysis and induction of apoptosis by blocking the PADI3-ERK signaling pathway. Thus, AT-II represents a novel therapeutic target for endometrial cancer and targeting AT-II may serve as a potential strategy for the clinical therapy of endometrial cancer.
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Affiliation(s)
- Shuang Tian
- Department of Pathology, College of Integrated Chinese and Western Medical, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, China
- Department of Cell Biology and Genetics, Basic Medical College, Jinzhou Medical University, Jinzhou 121001, China
| | - Lili Ren
- Department of Neurobiology, Basic Medical College, Jinzhou Medical University, Jinzhou 121001, China
| | - Chao Liu
- Department of Cell Biology and Genetics, Basic Medical College, Jinzhou Medical University, Jinzhou 121001, China
| | - Zhe Wang
- Department of Pathology, College of Integrated Chinese and Western Medical, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, China
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12
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Huang C, Yuan Y, Li G, Tian S, Hu H, Chen J, Liang L, Wang Y, Liu Y. Mitochondria-targeted iridium(III) complexes encapsulated in liposome induce cell death through ferroptosis and gasdermin-mediated pyroptosis. Eur J Med Chem 2024; 265:116112. [PMID: 38183779 DOI: 10.1016/j.ejmech.2023.116112] [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: 11/05/2023] [Revised: 12/25/2023] [Accepted: 12/29/2023] [Indexed: 01/08/2024]
Abstract
This paper unveils a novel perspective on synthesis and characterization of the ligand 5-bromo-2-amino-2'-(phenyl-1H-imidazo[4,5-f][1,10]phenanthroline) (BAPIP), and its iridium(III) complexes [Ir(PPY-)2(BAPIP)](PF6) (1a, with PPY- as deprotonated 2-phenylpyridine), [Ir(PIQ-)2(BAPIP)](PF6) (1b, piq- denoting deprotonated 1-phenylisoquinoline), and [Ir(BZQ-)2(BAPIP)](PF6) (1c, bzq- signifying deprotonated benzo[h]quinoline). Systematic evaluation of the cytotoxicity of 1a, 1b, and 1c across diverse cell lines encompassing B16, HCT116, HepG2, A549, HeLa, and LO2 using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method. Unexpectedly, compounds 1b and 1c demonstrated no cytotoxicity against the above cell lines. Motivated by the pursuit of heightened anti-proliferative potential, a strategic encapsulation approach yielded liposomes 1alip, 1blip, and 1clip. As expectation, 1alip, 1blip, and 1clip displayed remarkable anti-proliferative efficacy, particularly noteworthy in A549 cells, exhibiting IC50 values of 4.9 ± 1.0, 5.9 ± 0.1, and 7.6 ± 0.2 μM, respectively. Moreover, our investigation illuminated the mitochondrial accumulation of these liposomal entities, 1alip, 1blip, and 1clip, evoking apoptosis through the mitochondrial dysfunction mediated by reactive oxygen species (ROS). The ferroptosis was confirmed by decrease in glutathione (GSH) concentrations, the downregulation of glutathione peroxidase 4 (GPX4), increase of high mobility group protein 1 (HMGB1), and lipid peroxidation. Simultaneously, pyroptosis as another mode of cell death was undertaken. RNA-sequencing was employed to investigate intricate signalling pathways. In vivo examination provided tangible evidence of 1alip in effectively curbing tumor growth. Collectively, this study provides a multifaceted mode of cellular demise orchestrated by 1a, 1alip, 1blip, and 1clip, involving pathways encompassing apoptosis, ferroptosis, and pyroptosis.
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Affiliation(s)
- Chunxia Huang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yuhan Yuan
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Foshan women and children hospital, Foshan, 528000, China
| | - Gechang Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Shuang Tian
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Huiyan Hu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Jing Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Lijuan Liang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yi Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yunjun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
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13
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Lv Z, Sun L, Xie X, Yao X, Tian S, Wang C, Wang F, Liu J. TMEM225 Is Essential for Sperm Maturation and Male Fertility by Modifying Protein Distribution of Sperm in Mice. Mol Cell Proteomics 2024; 23:100720. [PMID: 38246484 PMCID: PMC10875271 DOI: 10.1016/j.mcpro.2024.100720] [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: 05/23/2023] [Revised: 01/07/2024] [Accepted: 01/13/2024] [Indexed: 01/23/2024] Open
Abstract
Nonobstructive azoospermia is the leading cause of male infertility. Abnormal levels of transmembrane protein 225 (TMEM225), a testis-specific protein, have been found in patients with nonobstructive azoospermia, suggesting that TMEM225 plays an essential role in male fertility. Here, we generated a Tmem225 KO mouse model to explore the function and mechanism of TMEM225 in male reproduction. Male Tmem225 KO mice were infertile. Surprisingly, Tmem225 deletion did not affect spermatogenesis, but TMEM225-null sperm exhibited abnormalities during epididymal maturation, resulting in reduced sperm motility and an abnormal hairpin-loop configuration. Furthermore, proteomics analyses of cauda sperm revealed that signaling pathways related to mitochondrial function, the glycolytic pathway, and sperm flagellar morphology were abnormal in Tmem225 KO sperm, and spermatozoa lacking TMEM225 exhibited high reactive oxygen species levels, reduced motility, and flagellar folding, leading to typical asthenospermia. These findings suggest that testicular TMEM225 may control the sperm maturation process by regulating the expression of proteins related to mitochondrial function, glycolysis, and sperm flagellar morphology in epididymal spermatozoa.
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Affiliation(s)
- Zheng Lv
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Longjie Sun
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xiaomei Xie
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xiaohong Yao
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Shuang Tian
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Chaofan Wang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Fengchao Wang
- Transgenic Animal Center, National Institute of Biological Sciences, Beijing, China; Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China.
| | - Jiali Liu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China.
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14
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Sun L, Lv Z, Chen X, Ye R, Tian S, Wang C, Xie X, Yan L, Yao X, Shao Y, Cui S, Chen J, Liu J. Splicing factor SRSF1 is essential for homing of precursor spermatogonial stem cells in mice. eLife 2024; 12:RP89316. [PMID: 38271475 PMCID: PMC10945694 DOI: 10.7554/elife.89316] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024] Open
Abstract
Spermatogonial stem cells (SSCs) are essential for continuous spermatogenesis and male fertility. The underlying mechanisms of alternative splicing (AS) in mouse SSCs are still largely unclear. We demonstrated that SRSF1 is essential for gene expression and splicing in mouse SSCs. Crosslinking immunoprecipitation and sequencing data revealed that spermatogonia-related genes (e.g. Plzf, Id4, Setdb1, Stra8, Tial1/Tiar, Bcas2, Ddx5, Srsf10, Uhrf1, and Bud31) were bound by SRSF1 in the mouse testes. Specific deletion of Srsf1 in mouse germ cells impairs homing of precursor SSCs leading to male infertility. Whole-mount staining data showed the absence of germ cells in the testes of adult conditional knockout (cKO) mice, which indicates Sertoli cell-only syndrome in cKO mice. The expression of spermatogonia-related genes (e.g. Gfra1, Pou5f1, Plzf, Dnd1, Stra8, and Taf4b) was significantly reduced in the testes of cKO mice. Moreover, multiomics analysis suggests that SRSF1 may affect survival of spermatogonia by directly binding and regulating Tial1/Tiar expression through AS. In addition, immunoprecipitation mass spectrometry and co-immunoprecipitation data showed that SRSF1 interacts with RNA splicing-related proteins (e.g. SART1, RBM15, and SRSF10). Collectively, our data reveal the critical role of SRSF1 in spermatogonia survival, which may provide a framework to elucidate the molecular mechanisms of the posttranscriptional network underlying homing of precursor SSCs.
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Affiliation(s)
- Longjie Sun
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural UniversityBeijingChina
| | - Zheng Lv
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural UniversityBeijingChina
| | - Xuexue Chen
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural UniversityBeijingChina
| | - Rong Ye
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of SciencesBeijingChina
| | - Shuang Tian
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural UniversityBeijingChina
| | - Chaofan Wang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural UniversityBeijingChina
| | - Xiaomei Xie
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural UniversityBeijingChina
| | - Lu Yan
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural UniversityBeijingChina
| | - Xiaohong Yao
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural UniversityBeijingChina
| | - Yujing Shao
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural UniversityBeijingChina
| | - Sheng Cui
- College of Veterinary Medicine, Yangzhou UniversityJiangsuChina
| | - Juan Chen
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China, Agricultural UniversityBeijingChina
| | - Jiali Liu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural UniversityBeijingChina
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15
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Zhang M, Wang W, Ye Q, Fu Y, Li X, Yang K, Gao F, Zhou A, Wei Y, Tian S, Li S, Wei F, Shi W, Li WD. Histone deacetylase inhibitors VPA and WT161 ameliorate the pathological features and cognitive impairments of the APP/PS1 Alzheimer's disease mouse model by regulating the expression of APP secretases. Alzheimers Res Ther 2024; 16:15. [PMID: 38245771 PMCID: PMC10799458 DOI: 10.1186/s13195-024-01384-0] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 01/03/2024] [Indexed: 01/22/2024]
Abstract
BACKGROUND Alzheimer's disease (AD) is a degenerative neurological disorder. Recent studies have indicated that histone deacetylases (HDACs) are among the most prominent epigenetic therapy targets and that HDAC inhibitors have therapeutic effects on AD. Here, we identified sodium valproate (VPA), a pan-HDAC inhibitor, and WT161, a novel HDAC6 selective inhibitor, as potential therapeutic agents for AD. Underlying molecular mechanisms were investigated. METHODS A cellular model, N2a-APPswe, was established via lentiviral infection, and the APPswe/PSEN1dE9 transgenic mouse model was employed in the study. LC-MS/MS was applied to quantify the concentration of WT161 in the mouse brain. Western blotting, immunohistochemical staining, thioflavin-S staining and ELISA were applied to detect protein expression in cells, tissues, or serum. RNA interference was utilized to knockdown the expression of specific genes in cells. The cognitive function of mice was assessed via the nest-building test, novel object recognition test and Morris water maze test. RESULTS Previous studies have focused mainly on the impact of HDAC inhibitors on histone deacetylase activity. Our study discovered that VPA and WT161 can downregulate the expression of multiple HDACs, such as HDAC1 and HDAC6, in both AD cell and mouse models. Moreover, they also affect the expression of APP and APP secretases (BACE1, PSEN1, ADAM10). RNA interference and subsequent vitamin C induction further confirmed that the expression of APP and APP secretases is indeed regulated by HDAC1 and HDAC6, with the JNK pathway being the intermediate link in this regulatory process. Through the above pathways, VPA and WT161 effectively reduced Aβ deposition in both AD cell and mouse models and significantly improved cognitive function in AD mice. CONCLUSIONS In general, we have discovered that the HDAC6-JNK-APP secretases cascade is an important pathway for VPA and WT161 to exert their therapeutic effects on AD. Investigations into the safety and efficacy of VPA and WT161 were also conducted, providing essential preclinical evidence for assessing these two epigenetic drugs for the treatment of AD.
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Affiliation(s)
- Miaomiao Zhang
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
- Prenatal Diagnostic Center, Yiwu Maternity and Children Hospital, Yiwu, 322000, China
| | - Wanyao Wang
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Qun Ye
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Yun Fu
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
- College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Maternity and Child Health Hospital, Fujian Medical University, Fuzhou, 350000, China
| | - Xuemin Li
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Ke Yang
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Fan Gao
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - An Zhou
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Yonghui Wei
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Shuang Tian
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Shen Li
- Laboratory of Biological Psychiatry, Institute of Mental Health, Tianjin Anding Hospital, Mental Health Center of Tianjin Medical University, Tianjin, 300222, China
| | - Fengjiang Wei
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Wentao Shi
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China.
| | - Wei-Dong Li
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China.
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16
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Chen B, Lu Q, Wei L, Fu W, Wei Z, Tian S. Global predictions of topsoil organic carbon stocks under changing climate in the 21st century. Sci Total Environ 2024; 908:168448. [PMID: 37963520 DOI: 10.1016/j.scitotenv.2023.168448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 10/29/2023] [Accepted: 11/07/2023] [Indexed: 11/16/2023]
Abstract
The organic carbon (OC) stored in global topsoil (0-30 cm) will be the most active participant in the carbon cycle under future climate change. Due to differences in focus regions or research methods, the spatio-temporal changes of future global topsoil OC stocks and how they will be affected by climate change are not systematically understood, which needs to be further explored. In this study, we developed data-driven models to predict the spatio-temporal dynamics of global topsoil OC stocks by combining 32,579 soil profiles with environmental variables and comprehensively explored the impact of future climate change on topsoil OC. It was found that the topsoil OC stocks were 1249.29 Pg in the baseline period (1971-1990). By 2100, under the normal and high representative concentration paths, it is predicted that the global topsoil OC stocks will decrease by 113.67 ± 25.93 Pg and 193.71 ± 39.76 Pg, respectively. In the future, the largest global topsoil carbon loss will occur in boreal forest areas, which are expected to lose 17.03-27.90 % (66.01-108.13Pg) of their carbon stocks. The influence of climate on topsoil OC stocks is mainly manifested in temperature, which has a negative influence on the global topsoil OC stock, and the contribution rate of temperature to the effect on the global topsoil OC stock is about 26.96 %. Overall, our results provide a high spatio-temporal resolution assessment of global topsoil OC stocks and their relationship to environmental factors, and highlight the spatial heterogeneity, which has been generally ignored in many experimental frameworks and prediction models. These results will help governments to make appropriate management decisions to mitigate climate change.
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Affiliation(s)
- Bo Chen
- Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China
| | - Qikai Lu
- Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China; Hubei Key Laboratory of Regional Development and Environmental Response, Hubei University, Wuhan 430062, China
| | - Lifei Wei
- Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China; Key Laboratory of Natural Resources Monitoring and Supervision in Southern Hilly Region, Ministry of Natural Resources, Changsha 410118, China; Hubei Key Laboratory of Regional Development and Environmental Response, Hubei University, Wuhan 430062, China.
| | - Wenqiang Fu
- Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China
| | - Zeyang Wei
- Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China
| | - Shuang Tian
- Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China
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17
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Yao X, Wang C, Yu W, Sun L, Lv Z, Xie X, Tian S, Yan L, Li L, Liu J. BCAS2 regulates oocyte meiotic prophase I by participating in mRNA alternative splicing. FASEB J 2024; 38:e23361. [PMID: 38085152 DOI: 10.1096/fj.202301234rr] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 11/16/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023]
Abstract
Oocyte meiotic prophase I (MI) is an important event in female reproduction. Breast cancer amplified sequence 2 (BCAS2) is a component of the spliceosome. Previous reports have shown that BCAS2 is critical in male germ cell meiosis, oocyte development, and early embryo genome integrity. However, the role of BCAS2 in oocyte meiosis has not been reported. We used Stra8-GFPCre mice to knock out Bcas2 in oocytes during the pachytene phase. The results of fertility tests showed that Bcas2 conditional knockout (cKO) in oocytes results in infertility in female mice. Morphological analysis showed that the number of primordial follicles in the ovaries of 2-month-old (M) mice was significantly reduced and that follicle development was blocked. Further analysis showed that the number of primordial follicles decreased and that follicle development was slowed in 7-day postpartum (dpp) ovaries. Moreover, primordial follicles undergo apoptosis, and DNA damage cannot be repaired in primary follicle oocytes. Meiosis was abnormal; some oocytes could not reach the diplotene stage, and more oocytes could not develop to the dictyotene stage. Alternative splicing (AS) analysis revealed abnormal AS of deleted in azoospermia like (Dazl) and diaphanous related formin 2 (Diaph2) oogenesis-related genes in cKO mouse ovaries, and the process of AS was involved by CDC5L and PRP19.
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Affiliation(s)
- Xiaohong Yao
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Chaofan Wang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Weiran Yu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Longjie Sun
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Zheng Lv
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xiaomei Xie
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Shuang Tian
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Lu Yan
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Lei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Jiali Liu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
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Li S, Dong H, Wang Y, Wang S, Lv X, Dong M, Tian S, Shi J. China Alzheimer's Disease and Neurodegenerative Disorder Research (CANDOR) -A Prospective Cohort Study for Alzheimer's Disease and Vascular Cognitive Impairment. J Prev Alzheimers Dis 2024; 11:214-221. [PMID: 38230734 DOI: 10.14283/jpad.2023.97] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
BACKGROUND Alzheimer's disease (AD) and vascular cognitive impairment (VCI) are the two main causes of dementia. AD and VCI share similar symptoms of cognitive decline and may be attributable to similar risk factors. Establishing a prospective cohort to compare VCI and AD would help to understand vascular risk factors related to dementia. OBJECTIVES China Alzheimer's disease and Neurodegenerative Disorder Research (CANDOR) study is a prospective multicenter cohort study. It aims to study the similarities and differences between AD and post stroke cognitive impairment (PSCI) in neuroimaging changes, disease progression, and multiple omics studies. DESIGN This is an ongoing study. From July 31, 2019, to August 1, 2022, we recruited 1449 participants with ages between 40 and 100 years. The cohort included three groups: AD group, PSCI group, and normal cognitive (NC) group. Data were collected in face-to-face interviews at baseline, and will be followed up every year for 4 years. The PSCI group had additional follow-ups at 3-month and 6-month after enrollment. Brain Magnetic Resonance Imaging (MRI) included high-resolution sequences for intracranial arteries. Cognitive assessments and follow-up information will be prospectively collected. Biological specimens including blood and urine at baseline were collected and tested. PARTICIPANTS The targeted sample size of PSCI group was 500, AD group with 600 and NC group with 2000. There were 1449 participants enrolled. Include 508 participants were in NC group, 387 in AD group and 554 in PSCI group. MEASUREMENTS Demographics, clinical parameters, and medical examinations were collected and performed. Cognitive assessment was performed to assess all cognitive domains including memory, language, executive function, and orientation function. CONCLUSIONS The CANDOR study is a prospective cohort study. Data from this cohort provide us an opportunity to investigate the contribution of vascular factors to dementia pathogenesis.
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Affiliation(s)
- S Li
- Jiong Shi, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, No. 119, South Fourth Ring West Road, Fengtai District, Beijing 100070, People's Republic of China, Tel +86-10-59978350, Fax +86-10-59973383, Email
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19
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Tian S, Wang XY, Huang HD, Bai C. [Advances in interventional diagnostic bronchoscopy for peripheral pulmonary lesions]. Zhonghua Nei Ke Za Zhi 2023; 62:1346-1352. [PMID: 37935503 DOI: 10.3760/cma.j.cn112138-20221125-00886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Affiliation(s)
- S Tian
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - X Y Wang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - H D Huang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - C Bai
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
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20
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Yao X, Wang C, Yu W, Sun L, Lv Z, Xie X, Tian S, Yan L, Zhang H, Liu J. SRSF1 is essential for primary follicle development by regulating granulosa cell survival via mRNA alternative splicing. Cell Mol Life Sci 2023; 80:343. [PMID: 37907803 DOI: 10.1007/s00018-023-04979-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 09/14/2023] [Accepted: 09/24/2023] [Indexed: 11/02/2023]
Abstract
Granulosa cell abnormalities are characteristics of premature ovarian insufficiency (POI). Abnormal expression of serine/arginine-rich splicing factor 1 (SRSF1) can cause various diseases, but the role of SRSF1 in mouse granulosa cells remains largely unclear. In this study, we found that SRSF1 was expressed in the nuclei of both mouse oocytes and granulosa cells. The specific knockout of Srsf1 in granulosa cells led to follicular development inhibition, decreased granulosa cell proliferation, and increased apoptosis. Gene Ontology (GO) analysis of RNA-seq results revealed abnormal expression of genes involved in DNA repair, cell killing and other signalling pathways. Alternative splicing (AS) analysis showed that SRSF1 affected DNA damage in granulosa cells by regulating genes related to DNA repair. In summary, SRSF1 in granulosa cells controls follicular development by regulating AS of genes associated with DNA repair, thereby affecting female reproduction.
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Affiliation(s)
- Xiaohong Yao
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Chaofan Wang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Weiran Yu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Longjie Sun
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zheng Lv
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xiaomei Xie
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuang Tian
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Lu Yan
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Hua Zhang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Jiali Liu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.
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21
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Zhang MC, Tian S, Fu D, Wang L, Cheng S, Yi HM, Jiang XF, Song Q, Zhao Y, He Y, Li JF, Mu RJ, Fang H, Yu H, Xiong H, Li B, Chen SJ, Xu PP, Zhao WL. Genetic subtype-guided immunochemotherapy in diffuse large B cell lymphoma: The randomized GUIDANCE-01 trial. Cancer Cell 2023; 41:1705-1716.e5. [PMID: 37774697 DOI: 10.1016/j.ccell.2023.09.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/25/2023] [Accepted: 09/05/2023] [Indexed: 10/01/2023]
Abstract
We report the results of GUIDANCE-01 (NCT04025593), a randomized, phase II trial of R-CHOP alone or combined with targeted agents (R-CHOP-X) guided by genetic subtyping of newly diagnosed, intermediate-risk, or high-risk diffuse large B cell lymphoma (DLBCL). A total of 128 patients were randomized 1:1 to receive R-CHOP-X or R-CHOP. The study achieved the primary endpoint, showing significantly higher complete response rate with R-CHOP-X than R-CHOP (88% vs. 66%, p = 0.003), with overall response rate of 92% vs. 73% (p = 0.005). Two-year progression-free survival rates were 88% vs. 63% (p < 0.001), and 2-year overall survival rates were 94% vs. 77% (p = 0.001). Meanwhile, post hoc RNA-sequencing validated our simplified genetic subtyping algorithm and previously established lymphoma microenvironment subtypes. Our findings highlight the efficacy and safety of R-CHOP-X, a mechanism-based tailored therapy, which dually targeted genetic and microenvironmental alterations in patients with newly diagnosed DLBCL.
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Affiliation(s)
- Mu-Chen Zhang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuang Tian
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Di Fu
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Wang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Laboratory of Molecular Pathology, Shanghai, China
| | - Shu Cheng
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong-Mei Yi
- Department of Pathology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xu-Feng Jiang
- Department of Nuclear Medicine, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qi Song
- Department of Radiology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Zhao
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang He
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian-Feng Li
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rong-Ji Mu
- Clinical Research Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hai Fang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hao Yu
- Department of Research and Development, Shanghai Righton Biotechnology Co. Ltd, Shanghai, China
| | - Hui Xiong
- Department of Research and Development, Shanghai Righton Biotechnology Co. Ltd, Shanghai, China
| | - Biao Li
- Department of Nuclear Medicine, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sai-Juan Chen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Peng-Peng Xu
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Wei-Li Zhao
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Laboratory of Molecular Pathology, Shanghai, China.
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Tian S, Liu Y, Mao X, Xu X, Wang C, Han G, Yang Y, Wang J, He SM, Zhang W. A Multicenter Study on Deep Learning for Glioblastoma Auto-Segmentation with Prior Knowledge in Multimodal Imaging. Int J Radiat Oncol Biol Phys 2023; 117:e488. [PMID: 37785541 DOI: 10.1016/j.ijrobp.2023.06.2299] [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) A precise radiotherapy plan is required to ensure accurate delineation of gross tumor volumes (GTV) and clinical target volumes (CTV1 and CTV2) of glioblastomas (GBMs). However, traditional manual delineation is labor intensive and highly dependent on oncologists' experience. To construct and evaluate a deep learning-based automatic delineation method using prior knowledge in multimodal medical imaging to automate precise GTV, CTV1 and CTV2 contouring in GBM patients. MATERIALS/METHODS We retrospectively collected the CT and MRI scans of 55 eligible patients with histologically proven high-grade glioma (HGG) from an institute, these scans were performed with non-enhanced CT (CT), contrast-enhanced T1-weighted (T1C) and T2-FLAIR (T2F) sequences. We proposed a two-stage automatic segmentation framework (PKMI-Net) for GTV, CTV1 and CTV2 based on deep learning using prior knowledge in multimodal medical imaging, and its segmentation performance was evaluated with dice similarity coefficient (DSC), 95% Harsdorff distance (HD95), average surface distance (ASD) and relative volume difference (RVD). To further investigate the generalizability of our method, we designed and conducted two evaluation strategies (Mix and Cross) on four multicenter datasets (including 55 patients, 37 patients, 21 patients and 35 patients). RESULTS The evaluation results with an 11-patient test set from the single institute were summarized in Table 1, the proposed method demonstrated the best accuracy in segmenting, respectively, GTV, CTV1 and CTV, achieving a DSC of 0.94, 0.95 and 0.92; HD95 of 2.07 mm, 1.18 mm and 3.80 mm; ASD of 0.69 mm, 0.39 mm and 1.13 mm and RVE of 5.50%, 3.97% and 9.68%. In the multicenter evaluation, the segmentation performance of our method implemented with the Cross strategy was comparable to that with the Mix strategy, demonstrating that our method had high and stable generalizability across multicenter datasets in automatically segmenting GTV, CTV1 and CTV2. CONCLUSION Our proposed method achieved promising results in automatically segmenting gliomas across various datasets, which could improve the quality and efficiency of glioblastoma radiotherapy.
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Affiliation(s)
- S Tian
- Department of Radiation Oncology, Peking University Third Hospital, Beijing, China
| | - Y Liu
- United Imaging Research Institute of Innovative Medical Equipment, Shenzhen, China
| | - X Mao
- Radiotherapy Center, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - X Xu
- Department of Radiation Oncology, The Second Affiliated Hospital of Shandong First Medical University, Tai'an, China
| | - C Wang
- Department of Oncology, Sanya Central Hospital, Sanya, China
| | - G Han
- Department of Radiation Oncology, Hubei Cancer Hospital, Wuhan, China
| | - Y Yang
- Department of Radiation Oncology, Peking University International Hospital, Beijing, China
| | - J Wang
- Department of Radiation Oncology, Peking University Third Hospital, Beijing, China
| | - S M He
- United Imaging Research Institute of Intelligent Imaging, Beijing, China
| | - W Zhang
- Shanghai United Imaging Healthcare Technology Co., Ltd, ShangHai, China
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Tian S, McCook A, Choi IJ, Simone CB, Vargas CE, Yu NY, Chang JHC, Mihalcik SA, Tsai H, Zeng J, Rosen LR, Rana ZH, Urbanic JJ, Stokes WA, Kesarwala AH, Bradley JD, Higgins KA. Treatment of Thymoma and Thymic Carcinoma with Proton Beam Therapy: Outcomes from the Proton Collaborative Group Prospective Registry. Int J Radiat Oncol Biol Phys 2023; 117:e66. [PMID: 37785956 DOI: 10.1016/j.ijrobp.2023.06.792] [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) Given the generally long natural history of thymic malignancies, proton beam therapy (PBT) is advocated to minimize the risk of long-term toxicities to mediastinal organs. Adverse events (AE) and long-term clinical outcomes for this population have not been well-characterized. MATERIALS/METHODS The Proton Collaborative Group registry (NCT01255748), a multi-institutional prospective database of academic and community proton centers in the US, was queried for patients with thymomas and thymic carcinomas treated with PBT. Patients with recurrent/metastatic disease, non-thymic histology, received either prior or palliative radiotherapy (dose < 40 Gy RBE) were excluded. Overall survival (OS) and local control (LC) were estimated using Kaplan-Meier methods. RESULTS A total of 97 patients were identified in the PCG registry. After applying relevant exclusion criteria, 70 patients from 12 proton centers treated from 2011-2021 were included for analysis. Median follow-up length was 16 months. Median age was 58.5 years (IQR 46-63), and 60% were female. 81.4% had a diagnosis of thymoma, and 18.6% thymic carcinoma. 59 patients underwent surgical resection. 11 were treated with definitive PBT, of which 5 received concurrent chemotherapy. Median dose was 54 Gy RBE (range 41.4 - 70 Gy RBE), median number of fractions was 30 (range 21 - 38). 73.4% received pencil beam scanning and 23% uniform scanning PBT. Treatment was overall well-tolerated: a single patient developed grade 4 pneumonitis. Grade 3 AEs were seen in 3 patients - dyspnea, anorexia, and heart failure. Highest grade toxicity experienced was grade 2 for 47.1% and grade 1 for 42.9% of patients. 3-year overall survival (OS) was 82.6% for the entire cohort. 3-year OS was 94% for resected/adjuvant cohort and 35.6% in the non-surgical/definitive cohort. 3-year local control (LC) was 91.7% for the entire cohort. By surgery/margin status, 3-year LC was 96.8% in patients with close or negative margins (a single failure in a patient with close margins), whereas 3-year LC was 55.1% for patients with positive margins/unresectable disease. CONCLUSION Thymic malignancies treated with PBT appear to have favorable outcomes, especially in the adjuvant setting, in this cohort representing the largest series of such patients.
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Affiliation(s)
- S Tian
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - A McCook
- Emory Winship Cancer Institute, Atlanta, GA
| | - I J Choi
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - C E Vargas
- Department of Radiation Oncology, Mayo Clinic, Phoenix, AZ
| | - N Y Yu
- Department of Radiation Oncology, Mayo Clinic, Phoenix, AZ
| | - J H C Chang
- The Oklahoma Proton Center, Oklahoma City, OK
| | - S A Mihalcik
- Northwestern Medicine Chicago Proton Center, Warrenville, IL
| | - H Tsai
- Procure Proton Therapy Center, Somerset, NJ
| | - J Zeng
- Department of Radiation Oncology, University of Washington - Fred Hutchinson Cancer Center, Seattle, WA
| | - L R Rosen
- Willis-Knighton Proton Therapy Center, Shreveport, LA
| | - Z H Rana
- Department of Radiation Oncology, University of Maryland Medical Center, Baltimore, MD
| | | | - W A Stokes
- Winship Cancer Institute of Emory University, Department of Radiation Oncology, Atlanta, GA
| | - A H Kesarwala
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - J D Bradley
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - K A Higgins
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
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Hess CB, Eng TY, Nasti T, Dhere VR, Kleber T, Switchenko J, Weinberg BD, Rouphael N, Tian S, Rudra S, Olabode K, Samuel E, Ahmed R, Khan MK. Combined Analysis of a Phase III Randomized Trial and Phase II Prospective Trial with Blind Control Matching of Patients Receiving Whole-Lung, Low-Dose Radiation for COVID-19: Full Results and Immunologic Correlates of the RESCUE 1-19 Trial. Int J Radiat Oncol Biol Phys 2023; 117:e179. [PMID: 37784798 DOI: 10.1016/j.ijrobp.2023.06.1029] [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) Whole-lung, low-dose radiation (LD-RT) for COVID-19 requires randomization and biologic correlates to determine causality and mechanism. MATERIALS/METHODS A phase III trial randomized COVID-19 patients to physician's choice of drug therapy with or without LD-RT. Primary endpoint was intubation-free survival (IFS). The trial was designed with 80% power (two-sided log rank, alpha 0.05) to detect a hazard ratio of 0.3 after 12 intubation events. Estimating a 25% event rate, the planned sample size was 84 patients plus 25 to account for declining intubation rates and screen failures. Due to hospitalization declines and other barriers, the trial closed prematurely. Available randomized data were analyzed by intention-to-treat and combined with phase II results and immunologic correlates, using one-sided significance and an alpha of 0.1 to inform future trial design. RESULTS From Jun 2020-Jun 2022, 14 patients were randomized on a phase III trial. From Apr 2020-Dec 2020, 42 patients were enrolled on a phase II trial and blindly matched to 40 controls from contemporaneous trials. 96 total patients and 193 blood samples were available for analysis. Mean hospital duration with LD-RT was 12.9 vs 15.4 days in controls (p = 0.12). Oxygen flow rate >15 L/min (26% vs 38%, p = .27), high-flow oxygen >30 L/min (24% vs 38%, p = 0.18), non-invasive positive-pressure >60 L/min (9% vs 27%, p = 0.03), and mechanical ventilation (9% vs 24%, p = 0.05) reduced with LD-RT. Mean supplemented oxygen volume was 171,759 vs 547,626 liters in controls, with daily means of 10 vs 23 L/min (p = 0.03). Radiographs worsened in 43% vs 71% of controls (p = 0.03). Arterial blood gas mean P/F ratios improved 22% after LD-RT vs declined 8% in controls (p = 0.12). Mean days febrile were 1.8 vs 2.9 in controls (p = 0.10). Rate of myocardial injury was 47% vs 40% in controls (p = 0.77). Flow cytometry revealed 4-fold and 30-fold larger expansions, respectively, in CD8- and CD4-positive CD3+PD1+Ki67-high proliferating cytotoxic T-cells (300% vs 75% expansion, p = 0.07) and helper T-cells (200% expansion vs 6% contraction, p = 0.03) at day 7. In the randomized cohort, mean oxygen volume fell 75% with LD-RT to 78,336 vs 316,786 liters in controls (p = 0.13), mean flow rates were 5.1 vs 18.4 L/min (p = 0.13), radiographs worsened in 50% vs 100% (p = .17), P/F ratios improved 31% vs declined 68% in controls (p = 0.03), hospital duration was 8.9 vs 11.5 days (p = 0.22), and zero LD-RT patients vs one control intubated. CONCLUSION Combined analysis of a phase II/III randomized trial suggests that LD-RT prevents ventilation, reduces supplemental oxygen need, improves clinical course, and enhances immune response. LD-RT may have both immediate direct effects and delayed enhanced immunity in COVID-19. Larger multi-institutional trials are justified.
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Affiliation(s)
- C B Hess
- Grass Valley Radiation Oncology, Grass Valley, CA
| | - T Y Eng
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - T Nasti
- Department of Microbiology/Immunology, Emory University, Atlanta, GA
| | - V R Dhere
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | | | - J Switchenko
- Department of Biostatistics and Bioinformatics, Winship Cancer Institute of Emory University, Atlanta, GA
| | | | | | - S Tian
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - S Rudra
- Winship Cancer Institute of Emory University, Department of Radiation Oncology, Atlanta, GA
| | | | | | - R Ahmed
- Department of Microbiology/Immunology, Emory University, Atlanta, GA
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Wang JJ, Li JY, Wu WQ, Qiu MJ, Wu CX, Zhou ZT, Wu ML, Tian S, Wu L, Zhang JP, Zhang ZR, Tian RX, Hong ZW, Ren HJ, Wang GF, Wu XW, Ren JA. [Effects of rapid drug sensitivity testing for multidrug-resistant bacteria on the prognosis of patients with severe intra-abdominal infection]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:847-852. [PMID: 37709692 DOI: 10.3760/cma.j.cn441530-20230620-00219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Objective: To examine the clinical value of rapid detection of drug-resistant bacteria by immunochromatography and the effects of rapid detection on the prognosis of patients with severe intra-abdominal infection complicated by carbapenem-resistant Enterobacteriaceae (CRE) bloodstream infection. Methods: This was a retrospective cohort study. We analyzed clinical data of 73 patients with severe abdominal infections with sepsis or septic shock complicated by CRE bloodstream infection admitted to the general surgery department of Jinling Hospital between February 2022 and February 2023. Patients were divided into a colloidal gold immunochromatographic assay (GICA) group (17 patients) and conventional testing group (56 patients) based on whether a GICA for CRE had been performed on the patients' first blood culture sample during the diagnosis and treatment process. There were no statistically significant differences between the GICA and conventional testing groups in age ([55.9±17.3] vs. [47.6±16.4] years), sex ([16 men vs. one woman ] vs. [41 men vs. 15 women]), median Charlson comorbidity index (3.0[2.0,4.0] vs. 3.0[2.0, 4.8]), septic shock (10 vs. 39), or acute kidney injury (8 vs. 40) (all P>0.05). Both groups routinely underwent traditional bacterial identification and drug susceptibility testing. Additionally, patients in the GICA group were tested directly for positive blood cultures using a GICA carbapenemase test kit. The main outcomes were mortality rates on Days 28 and 90 after the first identification of CRE bloodstream infection in both groups. We also compared the microbial clearance rate, duration of hospitalization and intensive care unit stay, and time from onset of CRE bloodstream infection to initiation of targeted and appropriate antibiotics between the two groups. Results: The rate of microbial clearance of bloodstream infection was significantly greater in the GICA group than in the conventional testing group (15/17 vs. 34/56 [60.7%], χ2=4.476, P=0.034), whereas the 28-day mortality tended to be lower in the GICA than conventional testing group [5/17 vs. 44.6% [25/56], χ2=1.250, P=0.264). The 90-day mortality (8/17 vs. 53.6% [30/56], χ2=0.222, P=0.638), median duration of hospitalization (37.0 [18.0, 46.5] days vs. 45.5 [32.2, 64.8] days, Z=-1.867, P=0.062), and median duration of intensive care unit stay (18.0 [6.5, 35.0] days vs. 32.0 [5.0, 51.8] days, Z=-1.251, P=0.209). The median time between the onset of bloodstream infection and administration of antibiotics was 49.0 (38.0, 69.0) hours in the GICA group, which is significantly shorter than the 163.0 (111.8, 190.0) hours in the conventional testing group (Z=-5.731, P<0.001). The median time between the onset of bloodstream infection and administration of appropriate antibiotics was 40.0 (34.0, 80.0) hours in the GICA group, which is shorter than in the conventional testing group (68.0 [38.2, 118.8]) hours; however, this difference is not statistically significant (Z=-1.686, P=0.093). Conclusions: GICA can provide information on carbapenemase- producing pathogens faster than traditional drug sensitivity testing, enabling early administration of the optimal antibiotics. The strategy of 'carbapenemase detection first' for managing bacterial infection has the potential to improve prognosis of patients and reduce mortality rate.
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Affiliation(s)
- J J Wang
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - J Y Li
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - W Q Wu
- Department of Clinical Medicine, Medical School of Nanjing University, Nanjing 210093, China
| | - M J Qiu
- Department of Clinical Medicine, Jinling Hospital, Nanjing Medical University, Nanjing 211166, China
| | - C X Wu
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - Z T Zhou
- Department of Clinical Medicine, Jinling Hospital, Nanjing Medical University, Nanjing 211166, China
| | - M L Wu
- Department of Clinical Medicine, Jinling Hospital, Nanjing Medical University, Nanjing 211166, China
| | - S Tian
- Department of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - L Wu
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China Department of Clinical Medicine, Jinling Hospital, Nanjing Medical University, Nanjing 211166, China
| | - J P Zhang
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China Department of Clinical Medicine, Medical School of Nanjing University, Nanjing 210093, China
| | - Z R Zhang
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - R X Tian
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - Z W Hong
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - H J Ren
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - G F Wang
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - X W Wu
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - J A Ren
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
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Tian S, Lugger SJD, Lee CS, Debije MG, Schenning APHJ. Fully (Re)configurable Interactive Material through a Switchable Photothermal Charge Transfer Complex Gated by a Supramolecular Liquid Crystal Elastomer Actuator. J Am Chem Soc 2023; 145:19347-19353. [PMID: 37609696 PMCID: PMC10485926 DOI: 10.1021/jacs.3c05905] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Indexed: 08/24/2023]
Abstract
Charge transfer complexes (CTCs) based on self-assembled donor and acceptor molecules allow light absorption of significantly redshifted wavelengths to either the donor or acceptor. In this work, we demonstrate a CTC embedded in a hydrogen-bonded liquid crystal elastomer (LCE), which in itself is fully reformable and reprocessable. The LCE host acts as a gate, directing the self-assembly of the CTC. When hydrogen bonding is present, the CTC behaves as a near-infrared (NIR) dye allowing photothermal actuation of the LCE. The CTC can be disassembled in specific regions of the LCE film by disrupting the hydrogen bond interactions, allowing selective NIR heating and localized actuation of the films. The metastable non-CTC state may persist for weeks or can be recovered on demand by heat treatment. Besides the CTC variability, the capability of completely reforming the shape, color, and actuation mode of the LCE provides an interactive material with unprecedented application versatility.
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Affiliation(s)
- Shuang Tian
- Center
of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, Hong Kong SAR 999077, P.
R. China
- Stimuli-Responsive
Functional Materials and Devices (SFD), Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Sean J. D. Lugger
- Stimuli-Responsive
Functional Materials and Devices (SFD), Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems (ICMS), Eindhoven
University of Technology (TU/e), Groene Loper 3, 5612 AE Eindhoven, The Netherlands
| | - Chun-Sing Lee
- Center
of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, Hong Kong SAR 999077, P.
R. China
| | - Michael G. Debije
- Stimuli-Responsive
Functional Materials and Devices (SFD), Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems (ICMS), Eindhoven
University of Technology (TU/e), Groene Loper 3, 5612 AE Eindhoven, The Netherlands
- Interactive
Polymer Materials (IPM), Eindhoven University
of Technology (TU/e), Groene Loper 3, 5612 AE Eindhoven, The Netherlands
| | - Albert P. H. J. Schenning
- Stimuli-Responsive
Functional Materials and Devices (SFD), Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems (ICMS), Eindhoven
University of Technology (TU/e), Groene Loper 3, 5612 AE Eindhoven, The Netherlands
- Interactive
Polymer Materials (IPM), Eindhoven University
of Technology (TU/e), Groene Loper 3, 5612 AE Eindhoven, The Netherlands
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27
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Guo X, Zhang J, Shang J, Cheng Y, Tian S, Yao Y. Human leukocyte antigen-G in gynaecological tumours. Int J Immunogenet 2023. [PMID: 37415092 DOI: 10.1111/iji.12626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 05/23/2023] [Accepted: 06/25/2023] [Indexed: 07/08/2023]
Abstract
Gynaecological tumours that threaten the health of women, especially when advanced and recurrent, have remained mostly intractable to existing treatments. Therefore, new therapeutic targets are urgently needed. Human leukocyte antigen-G (HLA-G) is a nonclassical major histocompatibility complex class I molecule typically expressed in foetuses for protection against destruction by the maternal immune system. HLA-G is also expressed under pathological conditions, such as in solid tumours, and may participate in tumour development and serve as a novel immune checkpoint in cancer. Furthermore, it is expressed in most gynaecological tumours. Therefore, inhibiting HLA-G and its receptors to block the immune escape pathway could represent a new strategy in cancer immunotherapy. To the best of our knowledge, this review is the first to summarize recent research findings on HLA-G in gynaecological oncology. We highlight the fact that HLA-G is expressed in gynaecological tumour tissues, wherein it inactivates immune effectors involved in tumour progression. Further studies on HLA-G in gynaecological oncology are needed to incorporate HLA-G into the design and evaluation of immunotherapy for malignant gynaecological diseases.
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Affiliation(s)
- Xinmeng Guo
- College of Medicine, Nankai University, Tianjin, China
| | - Jinning Zhang
- Department of Obstetrics and Gynecology, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jin Shang
- Department of Obstetrics and Gynecology, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yanfei Cheng
- The University of Hong Kong - Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Shuang Tian
- Department of Obstetrics and Gynecology, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yuanqing Yao
- College of Medicine, Nankai University, Tianjin, China
- The University of Hong Kong - Shenzhen Hospital, Shenzhen, Guangdong, China
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28
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Wang T, Tian S, Ma D, Zhang L. Nonmonotonic dependence of thermal conductivity on surface roughness: A multiparticle Lorentz gas model. Phys Rev E 2023; 108:014125. [PMID: 37583191 DOI: 10.1103/physreve.108.014125] [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] [Received: 12/20/2022] [Accepted: 06/27/2023] [Indexed: 08/17/2023]
Abstract
Utilizing surface roughness to manipulate thermal transport has aided important developments in thermoelectrics and heat dissipation in microelectronics. In this paper, through a multiparticle Lorentz gas model, it is found that thermal conductivity oscillates with the increase of surface roughness, and the oscillating thermal conductivity gradually disappears with the increase of nonlinearity. The transmittance analyses reveal that the oscillating thermal conductivity is caused by localized particles due to boundary effects. Nonlinearity will gradually break the localization. Thus, localization still exists in the weak nonlinear system, where there exists an interplay between nonlinear interaction and localization. Furthermore, it is also found that boundary shapes have a great influence on the oscillating thermal conductivity. Finally, we have also studied the oscillating thermal rectification effects caused by rough boundaries. This study gains insight into the boundary effect on thermal transport and provides a mechanism to manipulate thermal conductivity.
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Affiliation(s)
- Tingting Wang
- Phonon Engineering Research Center of Jiangsu Province, Center for Quantum Transport and Thermal Energy Science, Institute of Physics Frontiers and Interdisciplinary Sciences, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China
| | - Shuang Tian
- Phonon Engineering Research Center of Jiangsu Province, Center for Quantum Transport and Thermal Energy Science, Institute of Physics Frontiers and Interdisciplinary Sciences, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China
| | - Dengke Ma
- Phonon Engineering Research Center of Jiangsu Province, Center for Quantum Transport and Thermal Energy Science, Institute of Physics Frontiers and Interdisciplinary Sciences, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China
| | - Lifa Zhang
- Phonon Engineering Research Center of Jiangsu Province, Center for Quantum Transport and Thermal Energy Science, Institute of Physics Frontiers and Interdisciplinary Sciences, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China
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29
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Sun L, Chen J, Ye R, Lv Z, Chen X, Xie X, Li Y, Wang C, Lv P, Yan L, Tian S, Yao X, Chen C, Cui S, Liu J. SRSF1 is crucial for male meiosis through alternative splicing during homologous pairing and synapsis in mice. Sci Bull (Beijing) 2023; 68:1100-1104. [PMID: 37179228 DOI: 10.1016/j.scib.2023.04.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023]
Affiliation(s)
- Longjie Sun
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Juan Chen
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100190, China
| | - Rong Ye
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Zheng Lv
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xuexue Chen
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xiaomei Xie
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yuheng Li
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Chaofan Wang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Pengbo Lv
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Lu Yan
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Shuang Tian
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xiaohong Yao
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Chen Chen
- Department of Animal Science, Michigan State University, East Lansing 48824, USA; Reproductive and Developmental Sciences Program, Michigan State University, East Lansing 48824, USA; Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, Grand Rapids 49503, USA
| | - Sheng Cui
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Jiali Liu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China.
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Tian S, Chen Y, Fu Z, Wang X, Bi Y. Simple shape feature computation across modalities: convergence and divergence between the ventral and dorsal visual streams. Cereb Cortex 2023:7190929. [PMID: 37280751 DOI: 10.1093/cercor/bhad200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/16/2023] [Indexed: 06/08/2023] Open
Abstract
Shape processing, whether by seeing or touching, is pivotal to object recognition and manipulation. Although the low-level signals are initially processed by different modality-specific neural circuits, multimodal responses to object shapes have been reported along both ventral and dorsal visual pathways. To understand this transitional process, we conducted visual and haptic shape perception fMRI experiments to test basic shape features (i.e. curvature and rectilinear) across the visual pathways. Using a combination of region-of-interest-based support vector machine decoding analysis and voxel selection method, we found that the top visual-discriminative voxels in the left occipital cortex (OC) could also classify haptic shape features, and the top haptic-discriminative voxels in the left posterior parietal cortex (PPC) could also classify visual shape features. Furthermore, these voxels could decode shape features in a cross-modal manner, suggesting shared neural computation across visual and haptic modalities. In the univariate analysis, the top haptic-discriminative voxels in the left PPC showed haptic rectilinear feature preference, whereas the top visual-discriminative voxels in the left OC showed no significant shape feature preference in either of the two modalities. Together, these results suggest that mid-level shape features are represented in a modality-independent manner in both the ventral and dorsal streams.
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Affiliation(s)
- Shuang Tian
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
- Beijing Key Laboratory of Brain Imaging and Connectomics, Beijing Normal University, Beijing 100875, China
| | - Yuankun Chen
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
- Beijing Key Laboratory of Brain Imaging and Connectomics, Beijing Normal University, Beijing 100875, China
| | - Ze Fu
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
- Beijing Key Laboratory of Brain Imaging and Connectomics, Beijing Normal University, Beijing 100875, China
| | - Xiaoying Wang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
- Beijing Key Laboratory of Brain Imaging and Connectomics, Beijing Normal University, Beijing 100875, China
| | - Yanchao Bi
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
- Beijing Key Laboratory of Brain Imaging and Connectomics, Beijing Normal University, Beijing 100875, China
- Chinese Institute for Brain Research, Beijing 102206, China
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Yao X, Wang C, Sun L, Yan L, Chen X, Lv Z, Xie X, Tian S, Liu W, Li L, Zhang H, Liu J. BCAS2 regulates granulosa cell survival by participating in mRNA alternative splicing. J Ovarian Res 2023; 16:104. [PMID: 37248466 DOI: 10.1186/s13048-023-01187-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 05/14/2023] [Indexed: 05/31/2023] Open
Abstract
BACKGROUND Granulosa cell proliferation and differentiation are essential for follicle development. Breast cancer amplified sequence 2 (BCAS2) is necessary for spermatogenesis, oocyte development, and maintaining the genome integrity of early embryos in mice. However, the function of BCAS2 in granulosa cells is still unknown. RESULTS We show that conditional disruption of Bcas2 in granulosa cells caused follicle development failure; the ratio of the positive cells of the cell proliferation markers PCNA and Ki67 were unchanged in granulosa cells. Specific deletion of Bcas2 caused a decrease in the BrdU-positive cell ratio, cell cycle arrest, DNA damage, and an increase in apoptosis in granulosa cells, and RPA1 was abnormally stained in granulosa cells. RNA-seq results revealed that knockout of Bcas2 results in unusual expression of cellular senescence genes. BCAS2 participated in the PRP19 complex to mediate alternative splicing (AS) of E2f3 and Flt3l mRNA to inhibit the cell cycle. Knockout of Bcas2 resulted in a significant decrease in the ratio of BrdU-positive cells in the human granulosa-like tumour (KGN) cell line. CONCLUSIONS Our results suggest that BCAS2 may influence the proliferation and survival of granulosa cells through regulating pre-mRNA splicing of E2f3 and Flt3l by forming the splicing complex with CDC5L and PRP19.
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Affiliation(s)
- Xiaohong Yao
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Chaofan Wang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Longjie Sun
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Lu Yan
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xuexue Chen
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zheng Lv
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xiaomei Xie
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuang Tian
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Wenbo Liu
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Lei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Hua Zhang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.
| | - Jiali Liu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.
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Xie X, Sun L, Duan Y, Lv Z, Yao X, Wang C, Chen X, Tian S, Yan L, Shao Y, Luo H, Liu J. SRSF2 in Sertoli cells is essential for testicular development and spermatogenesis in mice. FASEB J 2023; 37:e22918. [PMID: 37039821 DOI: 10.1096/fj.202202152rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/15/2023] [Accepted: 03/30/2023] [Indexed: 04/12/2023]
Abstract
Sertoli cells are essential for testis development and normal spermatogenesis by providing support and nutrients. Pre-messenger RNA (pre-mRNA) processing is the basic mechanism required for gene expression, and members of the serine/arginine-rich protein (SR) family are key components of the machines that perform these basic processing events. Serine/arginine-rich splicing factor 2 (SRSF2) is an important member of the SR family; however, the physiological functions of SRSF2 in Sertoli cells are still unclear. Here, we found that SRSF2 was localized in the nuclei of Sertoli and germ cells in male mice at all stages by breeding Amh-Cre mice obtained with Srsf2-specific knockout in Sertoli cells to define the function of SRSF2 in Sertoli cells. The experimental results showed that specific deletion of SRSF2 impaired fetal Sertoli cell proliferation and induced abnormal apoptosis and severe DNA damage in seminiferous tubules, resulting in severe testicular dysplasia, seminiferous tubule atrophy, and almost no normal seminiferous tubules at postnatal day 14. Eventually, these changes resulted in failure to produce normal sperm and infertility. Further RNA-seq results showed that many key genes related to proliferation and apoptosis were downregulated; Racgap1 mRNA undergoes exon skipping. Thus, SRSF2-dependent Sertoli cells are essential for testicular development and male reproduction.
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Affiliation(s)
- Xiaomei Xie
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Longjie Sun
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yixi Duan
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zheng Lv
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xiaohong Yao
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Chaofan Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xuexue Chen
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuang Tian
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Lu Yan
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yujing Shao
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Haoshu Luo
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Jiali Liu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
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33
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Tian S, Shi H, Bai C. [Progress in the pathological diagnosis of multifocal lung cancer]. Zhonghua Bing Li Xue Za Zhi 2023; 52:427-430. [PMID: 36973213 DOI: 10.3760/cma.j.cn112151-20220718-00619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Affiliation(s)
- S Tian
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - H Shi
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - C Bai
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
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Killian M, Tian S, Xing A, Gupta D, He Z. Predicting Health Outcomes Using Machine Learning in Pediatric Heart Transplantation Using UNOS Data. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.042] [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: 04/05/2023] Open
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35
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Fang H, Liao C, Fu Z, Tian S, Luo Y, Xu P, Krueger F. Connectome-based individualized prediction of reciprocity propensity and sensitivity to framing: a resting-state functional magnetic resonance imaging study. Cereb Cortex 2023; 33:3193-3206. [PMID: 35788651 DOI: 10.1093/cercor/bhac269] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/11/2022] [Accepted: 06/12/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND The social representation theory states that individual differences in reciprocity decisions are composed of a stable central core (i.e., reciprocity propensity, RP) and a contextual-dependent periphery (i.e., sensitivity to the framing effect; SFE, the effect by how the decision is presented). However, the neural underpinnings that explain RP and SFE are still unknown. METHOD Here, we employed prediction and lesion models to decode resting-state functional connectivity (RSFC) of RP and SFE for reciprocity decisions of healthy volunteers who underwent RS functional magnetic resonance imaging and completed one-shot trust (give frame) and distrust (take frame) games as trustees. RESULTS Regarding the central core, reciprocity rates were positively associated between the give and take frame. Neuroimaging results showed that inter-network RSFC between the default-mode network (DMN; associated with mentalizing) and cingulo-opercular network (associated with cognitive control) contributed to the prediction of reciprocity under both frames. Regarding the periphery, behavioral results demonstrated a significant framing effect-people reciprocated more in the give than in the take frame. Our neuroimaging results revealed that intra-network RSFC of DMN (associated with mentalizing) contributed dominantly to the prediction of SFE. CONCLUSION Our findings provide evidence for distinct neural mechanisms of RP and SFE in reciprocity decisions.
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Affiliation(s)
- Huihua Fang
- Shenzhen Key Laboratory of Affective and Social Neuroscience, Magnetic Resonance Imaging Center, Center for Brain Disorders and Cognitive Sciences, Shenzhen University, Shenzhen 518060, China
- Department of Psychology, University of Mannheim, Mannheim 68131, Germany
| | - Chong Liao
- Shenzhen Key Laboratory of Affective and Social Neuroscience, Magnetic Resonance Imaging Center, Center for Brain Disorders and Cognitive Sciences, Shenzhen University, Shenzhen 518060, China
- Department of Psychology, University of Mannheim, Mannheim 68131, Germany
| | - Zhao Fu
- Shenzhen Key Laboratory of Affective and Social Neuroscience, Magnetic Resonance Imaging Center, Center for Brain Disorders and Cognitive Sciences, Shenzhen University, Shenzhen 518060, China
| | - Shuang Tian
- Shenzhen Key Laboratory of Affective and Social Neuroscience, Magnetic Resonance Imaging Center, Center for Brain Disorders and Cognitive Sciences, Shenzhen University, Shenzhen 518060, China
| | - Yuejia Luo
- Shenzhen Key Laboratory of Affective and Social Neuroscience, Magnetic Resonance Imaging Center, Center for Brain Disorders and Cognitive Sciences, Shenzhen University, Shenzhen 518060, China
- Beijing Key Laboratory of Applied Experimental Psychology, National Demonstration Center for Experimental Psychology Education (BNU), Faculty of Psychology, Beijing Normal University, Beijing 100875, China
| | - Pengfei Xu
- Beijing Key Laboratory of Applied Experimental Psychology, National Demonstration Center for Experimental Psychology Education (BNU), Faculty of Psychology, Beijing Normal University, Beijing 100875, China
| | - Frank Krueger
- Department of Psychology, University of Mannheim, Mannheim 68131, Germany
- School of Systems Biology, George Mason University, Fairfax, VA 22030, USA
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36
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Sun L, Lv Z, Chen X, Wang C, Lv P, Yan L, Tian S, Xie X, Yao X, Liu J, Wang Z, Luo H, Cui S, Liu J. SRSF1 regulates primordial follicle formation and number determination during meiotic prophase I. BMC Biol 2023; 21:49. [PMID: 36882745 PMCID: PMC9993595 DOI: 10.1186/s12915-023-01549-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 02/20/2023] [Indexed: 03/09/2023] Open
Abstract
BACKGROUND Ovarian folliculogenesis is a tightly regulated process leading to the formation of functional oocytes and involving successive quality control mechanisms that monitor chromosomal DNA integrity and meiotic recombination. A number of factors and mechanisms have been suggested to be involved in folliculogenesis and associated with premature ovarian insufficiency, including abnormal alternative splicing (AS) of pre-mRNAs. Serine/arginine-rich splicing factor 1 (SRSF1; previously SF2/ASF) is a pivotal posttranscriptional regulator of gene expression in various biological processes. However, the physiological roles and mechanism of SRSF1 action in mouse early-stage oocytes remain elusive. Here, we show that SRSF1 is essential for primordial follicle formation and number determination during meiotic prophase I. RESULTS The conditional knockout (cKO) of Srsf1 in mouse oocytes impairs primordial follicle formation and leads to primary ovarian insufficiency (POI). Oocyte-specific genes that regulate primordial follicle formation (e.g., Lhx8, Nobox, Sohlh1, Sohlh2, Figla, Kit, Jag1, and Rac1) are suppressed in newborn Stra8-GFPCre Srsf1Fl/Fl mouse ovaries. However, meiotic defects are the leading cause of abnormal primordial follicle formation. Immunofluorescence analyses suggest that failed synapsis and an inability to undergo recombination result in fewer homologous DNA crossovers (COs) in the Srsf1 cKO mouse ovaries. Moreover, SRSF1 directly binds and regulates the expression of the POI-related genes Six6os1 and Msh5 via AS to implement the meiotic prophase I program. CONCLUSIONS Altogether, our data reveal the critical role of an SRSF1-mediated posttranscriptional regulatory mechanism in the mouse oocyte meiotic prophase I program, providing a framework to elucidate the molecular mechanisms of the posttranscriptional network underlying primordial follicle formation.
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Affiliation(s)
- Longjie Sun
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zheng Lv
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xuexue Chen
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Chaofan Wang
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Pengbo Lv
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Lu Yan
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuang Tian
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xiaomei Xie
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xiaohong Yao
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Jingjing Liu
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhao Wang
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Haoshu Luo
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Sheng Cui
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Jiali Liu
- State Key Laboratory of Farm Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.
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Ding X, Yang X, Hao Q, Xu F, Yu X, Rao L, Yuan C, Tian S. Risk prediction of second primary malignancies in primary colorectal neuroendocrine neoplasms patients: a population-based study. J Endocrinol Invest 2023:10.1007/s40618-023-02047-x. [PMID: 36870016 DOI: 10.1007/s40618-023-02047-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/19/2023] [Indexed: 03/05/2023]
Abstract
PURPOSE In this study, we aimed to identify risk factors for developing second primary malignancies (SPMs) in colorectal neuroendocrine neoplasms (NENs) patients and develop a competing-risk nomogram to predict SPMs' probabilities quantitatively. METHODS Patients with colorectal NENs were retrospectively collected from the Surveillance, Epidemiology, and End Results (SEER) database during 2000-2013. Potential risk factors for SPMs' occurrence in colorectal NENs' patients were identified by the Fine and Gray's proportional sub-distribution hazards model. Then, a competing-risk nomogram was constructed to quantify SPMs' probabilities. The discriminative abilities and calibrations of this competing-risk nomogram were assessed by the area under the receiver-operating characteristic (ROC) curves (AUC) and calibration curves. RESULTS We identified 11,017 colorectal NENs' patients, and randomly divided them into training (n = 7711 patients) and validation (n = 3306 patients) cohorts. In the whole cohort, 12.4% patients (n = 1369) had developed SPMs during the maximum follow-up of approximately 19 years (median 8.9 years). Sex, age, race, primary tumor location, and chemotherapy were identified as risk factors for SPMs' occurrence in colorectal NENs' patients. Such factors were selected to develop a competing-risk nomogram and showed excellent predictive ability for SPMs' occurrence (the 3-, 5-, and 10-year AUC values were 0.631, 0.632, and 0.629 in the training cohort and 0.665, 0.639, 0.624 in the validation cohort, respectively). CONCLUSIONS This research identified risk factors for SPMs' occurrence in colorectal NENs' patients. Competing-risk nomogram was constructed and proved to have good performance.
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Affiliation(s)
- X Ding
- Department of Clinical Laboratory, Affiliated Renhe Hospital of China Three Gorges University, Yichang, 443001, People's Republic of China
| | - X Yang
- Department of Clinical Laboratory, Affiliated Renhe Hospital of China Three Gorges University, Yichang, 443001, People's Republic of China
| | - Q Hao
- Department of Nursing, Affiliated Renhe Hospital of China Three Gorges University, Yichang, 443001, People's Republic of China
| | - F Xu
- Department of Pharmacy, The People's Hospital of China Three Gorges University, Yichang, 443000, People's Republic of China
| | - X Yu
- College of Basic Medical Science, China Three Gorges University, Yichang, 443002, People's Republic of China
| | - L Rao
- Department of Clinical Laboratory, Affiliated Renhe Hospital of China Three Gorges University, Yichang, 443001, People's Republic of China
| | - C Yuan
- College of Basic Medical Science, China Three Gorges University, Yichang, 443002, People's Republic of China.
| | - S Tian
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China.
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Lu Q, Tian S, Wei L. Digital mapping of soil pH and carbonates at the European scale using environmental variables and machine learning. Sci Total Environ 2023; 856:159171. [PMID: 36191697 DOI: 10.1016/j.scitotenv.2022.159171] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Soil pH and carbonates (CaCO3) are important indicators of soil chemistry and fertility, and the prediction of their spatial distribution is critical for the agronomic and environmental management. Digital soil mapping (DSM) techniques are widely accepted for the geospatial analysis of the soil properties. They are rapid and cost-efficient approaches that can provide quantitative prediction. However, the digital mapping of soil pH and CaCO3 are not well studied, especially at a continental scale. In this research, we mapped the soil pH and CaCO3 at the European scale using multisource environmental variables and machine learning approaches. Moderate Resolution Imaging Spectroradiometer (MODIS) products, terrain attributes, and climatic variables were considered. Meanwhile, nine machine learning algorithms, namely, three linear and six nonlinear models, were used for the spatial prediction of soil pH and CaCO3. The land use and cover area frame statistical survey (LUCAS) 2015 topsoil dataset provided by the European Soil Data Centre was utilised. The performances of different models were compared and analysed in terms of coefficient of determination (R2), root mean square error (RMSE), and ratio of performance to deviation (RPD). Specifically, nonlinear machine learning models outperformed the linear ones, and extremely randomized trees (ERT) gave the most satisfactory result for soil pH (R2 = 0.70, RMSE = 0.75, and RPD = 1.84) and CaCO3 (R2 = 0.53, RMSE = 93.49 g/kg, and RPD = 1.46). The results revealed that MODIS products and climatic variables were important in predicting soil pH and CaCO3. Moreover, spatial distribution of soil pH and CaCO3 in Europe were mapped at 250 m resolution, and the areas with high CaCO3 content always showed high soil pH value.
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Affiliation(s)
- Qikai Lu
- Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China; Key Laboratory of Digital Mapping and Land Information Application, Ministry of Natural Resources, Wuhan University, Wuhan 430079, China; Hubei Key Laboratory of Regional Development and Environmental Response, Hubei University, Wuhan 430062, China
| | - Shuang Tian
- Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China
| | - Lifei Wei
- Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China; Hubei Key Laboratory of Regional Development and Environmental Response, Hubei University, Wuhan 430062, China.
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Ma Y, Zhang P, Dai X, Yao X, Zhou S, Ma Q, Liu J, Tian S, Zhu J, Zhang J, Kong X, Bao Y. Extraction, physicochemical properties, and antioxidant activity of natural melanin from Auricularia heimuer fermentation. Front Nutr 2023; 10:1131542. [PMID: 36875843 PMCID: PMC9981798 DOI: 10.3389/fnut.2023.1131542] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 01/30/2023] [Indexed: 02/19/2023] Open
Abstract
Introduction Natural melanin from Auricularia heimuer have numerous beneficial biological properties, which were used as a safe and healthy colorant in several industries. Methods In this study, single-factor experiments, Box-Behnken design (BBD), and response surface methodology (RSM) were employed to investigate the effects of alkali-soluble pH, acid precipitation pH, and microwave time on the extraction yield of Auricularia heimuer melanin (AHM) from fermentation. Ultraviolet-visible spectrum (UV-Vis), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscope (SEM), and high-performance liquid chromatography (HPLC) were used to analyze the extracted AHM. The solubility, stability, and antioxidant activities of AHM were also measured. Results The results showed that alkali-soluble pH, acid precipitation pH, and microwave time significantly affected the AHM yield, with the following optimized microwave-assisted extraction conditions: alkali-soluble pH of 12.3, acid precipitation pH of 3.1, and microwave time of 53 min, resulting in an AHM extraction yield of 0.4042%. AHM exhibited a strong absorption at 210 nm, similar to melanin from other sources. FT-IR spectroscopy also revealed that AHM exhibited the three characteristic absorption peaks of natural melanin. The HPLC chromatogram profile of AHM showed a single symmetrical elution peak with a 2.435 min retention time. AHM was highly soluble in alkali solution, insoluble in distilled water and organic solvents, and demonstrated strong DPPH, OH, and ABTS free radical scavenging activities. Discussion This study provides technical support to optimize AHM extraction for use in the medical and food industries.
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Affiliation(s)
- Yinpeng Ma
- College of Forestry, Northeast Forestry University, Harbin, China.,Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, China
| | - Piqi Zhang
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, China
| | - Xiaodong Dai
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, China
| | - Xiuge Yao
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, China
| | - Shuyang Zhou
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, China
| | - Qingfang Ma
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, China
| | - Jianing Liu
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, China
| | - Shuang Tian
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, China
| | - Jianan Zhu
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, China
| | - Jiechi Zhang
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, China
| | - Xianghui Kong
- Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, China
| | - Yihong Bao
- College of Forestry, Northeast Forestry University, Harbin, China
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Guo X, Tian S, Wang H, Zhang J, Cheng Y, Yao Y. Outcomes associated with different surgical approaches to radical hysterectomy: A systematic review and network meta-analysis. Int J Gynaecol Obstet 2023; 160:28-37. [PMID: 35373333 DOI: 10.1002/ijgo.14209] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 10/08/2021] [Revised: 03/04/2022] [Accepted: 03/31/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To evaluate the efficacy and safety of five different approaches to cervical cancer surgery. METHODS We conducted a systematic search for comparative studies on different radical hysterectomy types for cervical cancer in PubMed, Embase, the Cochrane Library, and Web of Science databases. All included observational studies used survival analyses to compare clinical outcomes of patients undergoing different radical hysterectomy types. All studies were assessed by the Newcastle-Ottawa Scale with scores of at least seven points. We extracted the relevant data and conducted a network meta-analysis to compare clinical outcomes among five surgical approaches. RESULTS Thirty studies (n = 11 353) were included. Robotic surgery had the lowest blood loss volume and hospitalization duration; open surgery had the shortest operative time. Vaginal assisted laparoscopic surgery was associated with the highest number of resected lymph nodes and lowest rate of perioperative complications. Survival outcomes and tumor recurrence outcomes were similar among the approaches. CONCLUSION The current approaches to cervical cancer surgery have comparable efficacies.
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Affiliation(s)
- Xinmeng Guo
- College of Medicine, Nankai University, Tianjin, China
| | - Shuang Tian
- Department of Obstetrics and Gynecology, Chinese PLA General Hospital, Beijing, China
| | - Hui Wang
- Department of Obstetrics and Gynecology, Chinese PLA General Hospital, Beijing, China
| | - Jinning Zhang
- Department of Obstetrics and Gynecology, Chinese PLA General Hospital, Beijing, China
| | - Yanfei Cheng
- Department of Obstetrics and Gynecology, Chinese PLA General Hospital, Beijing, China
| | - Yuanqing Yao
- College of Medicine, Nankai University, Tianjin, China.,Department of Obstetrics and Gynecology, Chinese PLA General Hospital, Beijing, China.,The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
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Tian S, Qu Z, Cao H, Niu X, Qiao Q, Zhang B, Jia L, Wang W. The neuroprotective effect of Dl-3-n-butylphthalide in epileptic rats via inhibiting endoplasmic reticulum stress. Folia Neuropathol 2023; 61:185-195. [PMID: 37587893 DOI: 10.5114/fn.2022.123516] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023] Open
Abstract
INTRODUCTION The purpose of this study is to investigate whether Dl-3-n-Butylphthalide (NBP) has a neuroprotective effect on pilocarpine-induced epileptic (EP) rats through endoplasmic reticulum stress (ERS)-mediated apoptosis. MATERIAL AND METHODS The Sprague-Dawley rats were divided into four groups: control (CON), EP, EP + NBP 60 (NBP 60 mg/kg) and EP + NBP 120 (NBP 120 mg/kg) groups. After the successful establishment of the temporal lobe EP model using the lithium-pilocarpine, the rats were given NBP for 28 consecutive days in EP + NBP 60 and EP + NBP 120 groups. Then, the spontaneous recurrent seizure (SRS) latency, SRS frequency and seizure duration were observed in each group. In order to observe the abnormal discharge of rats, the intracranial electrodes were implanted to monitor the electroencephalogram. Nissl staining was used to observe the damage to the hippocampal CA1 neurons, TUNEL staining was employed to observe hippocampal neuronal apoptosis. Western blot was used to detect the expression of ERS and ERS-mediated apoptotic proteins. RESULTS NBP 60 and NBP 120 decreased SRS frequency (all p < 0.05), shortened seizure duration (all p < 0.05), and reduced the abnormal discharge of the brain. Nissl staining and TUNEL staining results show that NBP protected the hippocampal neurons from damage (all p < 0.05) and inhibited hippocampal neuronal apoptosis in EP rats (all p < 0.05). NBP 60 and NBP 120 could reduce ERS and ERS-mediated apoptotic protein expression in EP rats (all p < 0.05). In addition, the therapeutic effect of NBP on epilepsy in rats is dose-dependent. The SRS frequency of the EP + NBP 120 group was lower, and the seizure duration was shorter than in the EP + NBP 60 group (all p < 0.05), and there were more neurons in the EP + NBP 120 group than in the EP + NBP 60 group ( p < 0.05). CONCLUSIONS NBP had a significant neuroprotective effect in EP rats. Large doses of NBP are more effective than low doses. The mechanism may be associated with the inhibition of ERS and ERS-mediated apoptosis.
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Affiliation(s)
- Shuang Tian
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
- Department of Neurology, Shijiazhuang People's Hospital, Shijiazhuang, Hebei, P.R. China
| | - Zhenzhen Qu
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | | | | | - Qi Qiao
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | | | - Lijing Jia
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Weiping Wang
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
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Li J, Chen J, Tian S, Jiao T, Wang J, Wei Y, Cheng Y, Xu Y, Chian RC, Li Y, Zhang S. Effects of different sperm sources on the clinical outcomes of in vitro oocyte maturation cycles combined with intracytoplasmic sperm injection. Front Endocrinol (Lausanne) 2023; 14:1115210. [PMID: 36891059 PMCID: PMC9986477 DOI: 10.3389/fendo.2023.1115210] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 02/03/2023] [Indexed: 02/22/2023] Open
Abstract
OBJECTIVES To evaluate the embryonic developments and clinical outcomes of different sperm sources with cycles of intracytoplasmic sperm injection (ICSI) and in vitro maturation (IVM). METHODS This retrospective study was approved by the hospital ethics committee and conducted in the hospital in vitro fertilization (IVF) clinic. From January 2005 to December 2018, 239 infertile couples underwent IVM-ICSI cycles and were divided into three groups according to different sperm sources. Group 1 comprised patients with percutaneous epididymal sperm aspiration (PESA; n = 62, 62 cycles), group 2 comprised patients with testicular sperm aspiration (TESA; n = 51, 51 cycles), and group 3 comprised patients with ejaculated sperm (n = 126, 126 cycles). We calculated the following outcomes: 1) outcomes per IVM-ICSI cycle: fertilization rate, cleavage rate, and embryo quality; 2) outcomes per embryo transfer cycle: endometrial thickness, implantation rate, biochemical pregnancy rate, clinical pregnancy rate, and live birth rate. RESULTS There was no difference in basic characteristics among the three groups, such as the female partner's age, basal follicle-stimulating hormone (FSH), basal luteinizing hormone (LH), and antral follicle count (p > 0.1). There were no statistically significant differences according to the IVM-ICSI cycle among the three groups in fertilization rate, cleavage rate, and rate of good-quality embryos (p > 0.05). The results were similar among cycles regarding the number of transfer embryos and endometrial thickness per embryo transfer cycle among the three groups (p > 0.05). There were also similar clinical outcomes per embryo transfer cycle among the three groups, such as the biochemical pregnancy rate, clinical pregnancy rate, and live birth rate (p > 0.05). CONCLUSIONS Different sperm sources, percutaneous epididymal sperm aspiration, testicular sperm aspiration, and ejaculated sperm, do not affect the embryo and clinical outcomes after IVM-ICSI cycles.
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Affiliation(s)
- Jianhua Li
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Jing Chen
- Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Shuang Tian
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Tingting Jiao
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Jianye Wang
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Yan Wei
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Yanbin Cheng
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Ye Xu
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Ri-Cheng Chian
- Center for Reproductive Medicine, Shanghai Tenth People’s Hospital of Tongji University, Shanghai, China
- *Correspondence: Ri-Cheng Chian, ; Youzhu Li, ; Shuiwen Zhang,
| | - Youzhu Li
- Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
- *Correspondence: Ri-Cheng Chian, ; Youzhu Li, ; Shuiwen Zhang,
| | - Shuiwen Zhang
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Seventh Medical Center of PLA General Hospital, Beijing, China
- *Correspondence: Ri-Cheng Chian, ; Youzhu Li, ; Shuiwen Zhang,
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Xie G, Wang L, Zhu Q, Chu Z, Tian S, Gui Z, Song K, Yu Z. Regulating Alkyl Chain Length on Quaternization TiO 2 for Boosting Photocatalytic Performance: Synergism of Promoting Photogenerated Charge Separation and Improving Reactant Adsorption. ACS Appl Mater Interfaces 2022; 14:57428-57439. [PMID: 36529966 DOI: 10.1021/acsami.2c18350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
To explore the effect of surface charge properties of a photocatalyst on photocatalytic activity, quaternization TiO2 particles with different alkyl chain lengths (CT-X/P25) are first synthesized to boost the photocatalytic activity. The effect of a quaternary ammonium group with different alkyl chain lengths on the photocatalytic activity of CT-X/P25 is investigated. Interestingly, the introduction of a quaternary ammonium group on CT-X/P25 not only contributes to improving the photodegradation efficiency of anionic dyes due to enhancing of adsorption capacity through electrostatic attraction, but also it can improve the photodegradation efficiency of cationic dyes. Therefore, there seems to be another factor affecting the photocatalytic activity. The results of photoelectric characterization show that the photogenerated charge separation of CT-X/P25 is greatly enhanced, which is beneficial to improve the photocatalytic activity. Simultaneously, the results show that the difference in the photocatalytic activity of CT-X/P25 is mainly related to the charge intensity of -N+(CH3)2- in the quaternary amine salt. According to X-ray photoelectron spectroscopy, the charge intensity of -N+(CH3)2- in CT-X/P25 gradually increases with the increase in alkyl chain lengths, which is conducive to promoting photogenerated charge separation and improving the adsorption for anionic dyes. The photocatalytic activity has been further enhanced due to the enhancement of this synergy. In summary, the quaternary ammonium salt-modified CT-X/P25 shows an excellent synergistic effect on the process of photodegradation of anionic dyes: promoting photogenerated charge separation and adsorption.
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Affiliation(s)
- Guangyuan Xie
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou310018, Zhejiang, China
| | - Lei Wang
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou310018, Zhejiang, China
- Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, Shaoxing, Zhejiang312000, China
- China National Textile and Apparel Council Key Laboratory of Natural Dyes, Soochow University, Suzhou215123, China
| | - Qiuyu Zhu
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou310018, Zhejiang, China
| | - Zihao Chu
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou310018, Zhejiang, China
| | - Shuang Tian
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou310018, Zhejiang, China
| | - Zuwen Gui
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou310018, Zhejiang, China
| | - Kaili Song
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou310018, Zhejiang, China
| | - Zhicheng Yu
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou310018, Zhejiang, China
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Gai WZ, Tian S, Liu MH, Zhang X, Deng ZY. Synergistic effect and mechanisms of ultrasound and AlOOH suspension on Al hydrolysis for hydrogen production. Ultrason Sonochem 2022; 90:106189. [PMID: 36208490 PMCID: PMC9547310 DOI: 10.1016/j.ultsonch.2022.106189] [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] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/20/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Ultrasound can accelerate and change the reaction process and is widely used in the field of hydrogen production and storage. In this study, ultrasound (US) and AlOOH suspension (AH) are used to promote hydrogen production from Al hydrolysis. The results indicate that both US and AH greatly shorten the induction time and enhance the hydrogen production rate and yield. The promoting effect of US and AH on Al hydrolysis originates from the acoustic cavitation effect and catalytic effect, respectively. When AH is used in combination with US, Al hydrolysis has the best hydrogen production performance and the hydrogen yield can reach 96.6 % within 1.2 h, because there is a synergistic effect on Al hydrolysis between AH and US. Mechanism analyses reveal that the micro-jets and local high temperature environment arising from acoustic cavitation improve the catalytic activity of AlOOH, while the suspended AlOOH particles enhance the cavitation effect of US. This work provides a novel and feasible method to promote hydrogen production from Al hydrolysis.
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Affiliation(s)
- Wei-Zhuo Gai
- College of Physics and Electronic Information & Henan Key Laboratory of Electromagnetic Transformation and Detection, Luoyang Normal University, Luoyang 471934, China.
| | - Shuang Tian
- College of Physics and Electronic Information & Henan Key Laboratory of Electromagnetic Transformation and Detection, Luoyang Normal University, Luoyang 471934, China; College of Physics Science and Technology, Nanjing Normal University, Nanjing 210023, China
| | - Ming-Hao Liu
- College of Physics and Electronic Information & Henan Key Laboratory of Electromagnetic Transformation and Detection, Luoyang Normal University, Luoyang 471934, China
| | - Xianghui Zhang
- College of Physics and Electronic Information & Henan Key Laboratory of Electromagnetic Transformation and Detection, Luoyang Normal University, Luoyang 471934, China
| | - Zhen-Yan Deng
- Energy Materials & Physics Group, Department of Physics, Shanghai University, Shanghai 200444, China
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Tian S, Kozono D, Ohri N, Jolly S, Johnson B, Chaft J, Toloza E, Ding B, Ngiam C, Schulz K, Bara I, Lee J. NAUTIKA1: A Multicenter Phase II Study with a PD-L1+ Cohort of Patients Receiving Atezolizumab (Atezo) with Low-Dose Stereotactic Body Radiation Therapy (SBRT) as Neoadjuvant Therapy for Resectable Stage IB-III NSCLC. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1550] [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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46
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Li Z, Du X, Tian S, Fan S, Zuo X, Li Y, Wang R, Wang B, Huang Y. Pharmacokinetic herb-drug interactions: Altered systemic exposure and tissue distribution of ciprofloxacin, a substrate of multiple transporters, after combined treatment with Polygonum capitatum Buch.-Ham. ex D. Don extracts. Front Pharmacol 2022; 13:1033667. [PMID: 36386188 PMCID: PMC9640990 DOI: 10.3389/fphar.2022.1033667] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/14/2022] [Indexed: 11/25/2022] Open
Abstract
Background: Combination of Polygonum capitatum Buch.-Ham. ex D. Don extract (PCE) and ciprofloxacin (CIP) was commonly prescribed in the treatment of urinary tract infections. Their pharmacokinetic herb-drug interactions (HDIs) were focused in this study to assess potential impact on the safety and effectiveness. Methods: A randomized, three-period, crossover trial was designed to study the pharmacokinetic HDI between PCE and CIP in healthy humans. Their pharmacokinetic- and tissue distribution-based HDIs were also evaluated in rats. Gallic acid (GA) and protocatechuic acid (PCA) were chosen as PK-markers of PCE in humans and rats. Potential drug interaction mechanisms were revealed by assessing the effects of PCE on the activity and expression of multiple transporters, including OAT1/3, OCT2, MDR1, and BCRP. Results: Concurrent use of PCE substantially reduced circulating CIP (approximately 40%–50%) in humans and rats, while CIP hardly changed circulating GA and PCA. PCE significantly increased the tissue distribution of CIP in the prostate and testis of rats, but decreased in liver and lungs. Meanwhile, CIP significantly increased the tissue distribution of GA or PCA in the prostate and testis of rats, but decreased in kidney and heart. In the transporter-mediated in vitro HDI, GA and PCA presented inhibitory effects on OAT1/3 and inductive effects on MDR1 and BCRP. Conclusion: Multiple transporter-mediated HDI contributes to effects of PCE on the reduced systemic exposure and altered tissue distribution of CIP. More attention should be paid on the potential for PCE-perpetrated interactions.
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Affiliation(s)
- Ziqiang Li
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xi Du
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shuang Tian
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shanshan Fan
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xurui Zuo
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yanfen Li
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ruihua Wang
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Baohe Wang
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuhong Huang
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- *Correspondence: Yuhong Huang,
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47
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Liu X, Yang Y, Chen L, Tian S, Abdelrehem A, Feng J, Fu G, Chen W, Ding C, Luo Y, Zou D, Yang C. Proteome Analysis of Temporomandibular Joint with Disc Displacement. J Dent Res 2022; 101:1580-1589. [PMID: 36267015 DOI: 10.1177/00220345221110099] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Disc displacement without reduction is a common disorder of the temporomandibular joint, causing clinical symptoms and sometimes condylar degeneration. In some cases, bone regeneration is detected following disc-repositioning procedures. Until now, however, systems-wide knowledge of the protein levels for condylar outcome with disc position is still lacking. Here, we performed comprehensive expression profiling of synovial fluid from 109 patients with disc displacement without reduction using high-resolution data-independent acquisition mass spectrometry and characterized differences in 1,714 proteins. Based on magnetic resonance imaging, samples were divided into groups with versus without condylar absorption and subgroups with versus without new bone. For the proteomic analysis, 32 proteins in groups presented with statistical significance (>2-fold, P < 0.05). Pathways such as response to inorganic substances, blood coagulation, and estrogen signaling were significantly expressed in the group with bone absorption as compared with pathways such as regulation of body fluid levels, vesicle-mediated transport, and focal adhesion, which were enriched in the group without bone absorption. In subgroup analysis, 45 proteins of significant importance (>2-fold, P < 0.05) were associated with pathways including would healing, glycolysis and gluconeogenesis, and amino acid metabolism. Combined with clinical examination, molecules such as acetyl-CoA carboxylase beta (ACACB) and transforming growth factor beta 1 (TGFB1) were related to features such as visual analog scale and maximum interincisal opening (P < 0.05). In addition, 7 proteins were examined by Western blotting, including progesterone immunomodulatory binding factor 1 (PIBF1), histidine-rich glycoprotein (HRG), and protein kinase C and casein kinase substrate in neurons 2 (PACSIN2). In conclusion, this study provides the first proteome analysis of condylar absorption at disc displacement without reduction and postoperative new bone formation after disc reposition. Integrated with clinical data, this analysis provides an important insight into the proteomics of condylar modification at disc position.
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Affiliation(s)
- X Liu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Y Yang
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Institute of Biomedical Sciences, Human Phenome Institute, Zhongshan Hospital, Fudan University, Shanghai, China
| | - L Chen
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - S Tian
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Institute of Biomedical Sciences, Human Phenome Institute, Zhongshan Hospital, Fudan University, Shanghai, China
| | - A Abdelrehem
- Department of Craniomaxillofacial and Plastic Surgery, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - J Feng
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Institute of Biomedical Sciences, Human Phenome Institute, Zhongshan Hospital, Fudan University, Shanghai, China
| | - G Fu
- Stomatology Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, China
| | - W Chen
- Stomatology Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, China
| | - C Ding
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Institute of Biomedical Sciences, Human Phenome Institute, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Luo
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - D Zou
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - C Yang
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, China
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Griese M, Tullis E, Chilvers M, Fabrizzi B, Jain R, Legg J, Mall M, McKone E, Polineni D, Poplawska K, Robinson P, Taylor-Cousar J, Ahluwalia N, Doolittle C, Jennings M, Moskowitz S, Prieto-Centurion V, Tan Y, Tian S, Vinarsky V, Weinstock T, Xuan F, Ramsey B, Daines C. 170 Long-term safety and efficacy of elexacaftor/tezacaftor/ivacaftor in people with cystic fibrosis and at least one F508del allele: 144-week interim results from an open-label extension study. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00861-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Chmiel J, Barry P, Colombo C, De Wachter E, Fajac I, Mall M, McBennett K, McKone E, Mondejar-Lopez P, Quon B, Ramsey B, Robinson P, Sutharsan S, Ahluwalia N, Lu M, Moskowitz S, Prieto-Centurion V, Tian S, Waltz D, Weinstock T, Xuan F, Zelazoski L, Zhang Y, Polineni D. 185 Long-term safety and efficacy of elexacaftor/tezacaftor/ivacaftor in people with cystic fibrosis heterozygous for F508del-CFTR and a gating or residual function mutation. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00875-x] [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: 11/06/2022]
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Li W, Shi Y, Guo Y, Tian S. [Nur77 promotes invasion and migration of gastric cancer cells through the NF-κB/IL-6 pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1410-1417. [PMID: 36210716 DOI: 10.12122/j.issn.1673-4254.2022.09.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To analyze the association of Nur77 with overall survival of gastric cancer patients and investigate the role of Nur77 in invasion and migration of gastric cancer cells. METHODS Oncomine database was used to analyze the expression of Nur77 in gastric cancer and gastric mucosa tissues, and the distribution characteristics of Nur77 protein between gastric cancer and normal tissues were compared using Human Protein Atlas. GEPIA2 was used to analyze the relationship of Nur77 expression and the patients' survival. The expression of Nur77 in gastric cancer cell lines GES-1, AGS and MKN-45 were detected by Western blotting. The regulatory interactions between IL-6 and Nur77 were verified by transfecting the cells with specific Nur-77 siRNA and Nur-77-overexpressing plasmid. The changes in migration ability of the cells following Nur-77 knockdown were assessed with scratch assay. The effect of Nur-77 overexpression or IL-6 knockdown, or their combination, on migration and invasion of the gastric cancer cells were examined using Transwell assay. The effect of Nur77 expression level on NF-κB/IL-6 pathway activation was analyzed using Western blotting. RESULTS Oncomine database showed that gastric cancer tissues expressed a significantly higher level of Nur77 mRNA than normal tissues (P < 0.05). Nur77 expression was detected mostly in the nucleus, and a high Nur77 expression was associated with a poor survival outcome of the patients (P < 0.05). In gastric cancer cells, the high expression of Nur77 participated in the regulation of IL-6. Nur77 silencing significantly lowered the migration ability of the cells (P < 0.05), and IL-6 silencing significantly attenuated the enhanced migration caused by Nur77 overexpression (P < 0.05). Nur77 participates in the activation of NF-κB/IL-6 signaling pathway by regulating the expression of p-p65, p65, p-Stat3 and Stat3. CONCLUSION A high Nur77 expression is strongly correlated with a poor prognosis of gastric cancer patients. Nur77 promotes the invasion and migration of gastric cancer cells possibly by regulating the NF-κB/IL-6 signaling pathway.
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Affiliation(s)
- W Li
- Department of Oncology, Changzhou Jintan First People's Hospital, Changzhou 213200, China
| | - Y Shi
- Department of Oncology, Changzhou Jintan First People's Hospital, Changzhou 213200, China
| | - Y Guo
- Department of Oncology, Changzhou Jintan First People's Hospital, Changzhou 213200, China
| | - S Tian
- Department of Oncology, Changzhou Jintan First People's Hospital, Changzhou 213200, China
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