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Cao S, Gao S, Ni C, Xu Y, Pang B, Zhang J, Zhang Y, Wang Y, Geng Z, Li S, Zhao R, Han B, Cui X, Bao Y. Study on the therapeutic mechanism of HJ granules in a rat model of urinary tract infection caused by Escherichia coli. J Ethnopharmacol 2024; 328:118056. [PMID: 38490287 DOI: 10.1016/j.jep.2024.118056] [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] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/05/2024] [Accepted: 03/12/2024] [Indexed: 03/17/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Urinary tract infections (UTIs) are globally prevalent infectious diseases, predominantly caused by uropathogenic Escherichia coli (UPEC). The misuse of antibiotics has led to the emergence of several drug-resistant strains. Traditional Chinese Medicine (TCM) has its own advantages in the treatment of UTIs. HJ granules is a herbal formula used for the treatment of UTIs. However, its mechanism of action is not clear. AIM OF THE STUDY The aim of this study was to investigate the therapeutic efficacy and mechanism of action of HJ granules in a rat model of UTI caused by Escherichia coli (E coli) CFT073. MATERIALS AND METHODS SD rats were selected to establish a rat UTI model by injecting UPEC strain CFT073 into the bladder using the transurethral placement method. HJ granules were administered to rats after modelling and the efficacy of HJ granule was investigated by measuring urinary decanalogue, inflammatory factors in bladder tissue and pathological changes in the bladder after 3d of administration. Expression of sonic hedgehog (SHH), NOD-like receptor thermoprotein domain 3 (NLRP3), apoptosis-associated speck-like protein (ASC) and activation of cysteinyl aspartate specific proteinase-1 (caspase-1) were detected by western blotting and immunofluorescence staining in rat bladder tissue. NLRP3, ASC and caspase-1, a cysteine-containing aspartic protein, were expressed and activated. RESULTS The results showed that infection of rats with UPEC resulted in increased pH and erythrocytes in bladder irrigation fluid; increased expression of IL-1β, IL-6 and SHH and decreased expression of IL-10 in bladder tissue; and significant upregulation of the expression of both SHH and NLRP3 inflammasom and significant activation of NLRP3 inflammasom. HJ granules significantly increased the concentration of IL-10 in the bladder, inhibited the expression of SHH and NLRP3 inflammasom in bladder tissue, and suppressed the activation of NLRP3 inflammasom, thereby reducing inflammatory lesions in bladder tissue. CONCLUSION HJ granules may improve bladder injury and treat UTIs by inhibiting the expression and activation of NLRP3 inflammasom.
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Affiliation(s)
- Shan Cao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Shuangrong Gao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Chen Ni
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yingli Xu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Bo Pang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jingsheng Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yu Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yaxin Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Zihan Geng
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Shurang Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ronghua Zhao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Bing Han
- Heilongjiang Jiren Pharmaceutical Co., Ltd., Harbin, 150000, China.
| | - Xiaolan Cui
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yanyan Bao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
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Ni C, Wu D, Chen Y, Wang S, Xiang N. Cascaded elasto-inertial separation of malignant tumor cells from untreated malignant pleural and peritoneal effusions. Lab Chip 2024; 24:697-706. [PMID: 38273802 DOI: 10.1039/d3lc00801k] [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] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Separation of malignant tumor cells (MTCs) from large background cells in untreated malignant pleural and peritoneal effusions (MPPEs) is critical for improving the sensitivity and efficiency of cytological diagnosis. Herein, we proposed a cascaded elasto-inertial cell separation (CEICS) device integrating an interfacial elasto-inertial microfluidic channel with a symmetric contraction expansion array (CEA) channel for pretreatment-free, high-recovery-ratio, and high-purity separation of MTCs from clinical MPPEs. First, the effects of flow-rate ratio, cell concentration, and cell size on separation performances in two single-stage channels were investigated. Then, the performances of the integrated CEICS device were characterized using blood cells spiked with three different tumor cells (MCF-7, MDA-MB-231, and A549 cells) at a high total throughput of 240 μL min-1. An average recovery ratio of ∼95% and an average purity of ∼61% for the three tumor cells were achieved. Finally, we successfully applied the CEICS device for the pretreatment-free separation of MTCs from clinical MPPEs of different cancers. Our CEICS device may provide a preparation tool for improving the sensitivity and efficiency of cytological examination.
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Affiliation(s)
- Chen Ni
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Dan Wu
- Department of Oncology, Jiangyin People's Hospital, Jiangyin, 214400, China
| | - Yao Chen
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Silin Wang
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Nan Xiang
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
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Chen Y, Ni C, Jiang L, Ni Z, Xiang N. Inertial Multi-Force Deformability Cytometry for High-Throughput, High-Accuracy, and High-Applicability Tumor Cell Mechanotyping. Small 2024; 20:e2303962. [PMID: 37789502 DOI: 10.1002/smll.202303962] [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] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 09/23/2023] [Indexed: 10/05/2023]
Abstract
Previous on-chip technologies for characterizing the cellular mechanical properties often suffer from a low throughput and limited sensitivity. Herein, an inertial multi-force deformability cytometry (IMFDC) is developed for high-throughput, high-accuracy, and high-applicability tumor cell mechanotyping. Three different deformations, including shear deformations and stretch deformations under different forces, are integrated with the IMFDC. The 3D inertial focusing of cells enables the cells to deform by an identical fluid flow, and 10 parameters, such as cell area, perimeter, deformability, roundness, and rectangle deformability, are obtained in three deformations. The IMFDC is able to evaluate the deformability of different cells that are sensitive to different forces on a single chip, demonstrating the high applicability of the IMFDC in analyzing different cell lines. In identifying cell types, the three deformations exhibit different mechanical responses to cells with different sizes and deformability. A discrimination accuracy of ≈93% for both MDA-MB-231 and MCF-10A cells and a throughput of ≈500 cells s-1 can be achieved using the multiple-parameters-based machine learning model. Finally, the mechanical properties of metastatic tumor cells in pleural and peritoneal effusions are characterized, enabling the practical application of the IMFDC in clinical cancer diagnosis.
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Affiliation(s)
- Yao Chen
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Chen Ni
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Lin Jiang
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Zhonghua Ni
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Nan Xiang
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
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Teng Y, Gu M, Sun Z, Liu X, Liu B, Zhang J, Huang S, Ni C. Preparation and performance of a CsI scintillation screen with a double-period structure based on an oxidized silicon micropore array template. Opt Express 2024; 32:2732-2745. [PMID: 38297795 DOI: 10.1364/oe.512075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 01/02/2024] [Indexed: 02/02/2024]
Abstract
A structured double-period CsI scintillation screen was successfully developed to improve its detection efficiency based on an oxidized silicon micropore array template with a period value on the order of micro-scale. The structure comprises a main structure along with a sub-structure. The main structure with a period of 8 µm was arranged in a square array consisting of square columnar scintillator units. The micropore walls between the main structure units were purposely fabricated from a SiO2-Si-SiO2 layered structure. The pore walls in commonly used single-structure with a period of 4 µm use the same layered structure composition to obtain a fair comparison. The thickness of both Si and the SiO2 layers was around 0.4 µm. The unique feature of the double structure lies in the even separation of each unit within the main structure into four square columnar scintillator sub-units. These four sub-units within each sub-structure were isolated solely by SiO2 layers with a thickness of approximately 0.8 µm. As a result, the X-ray-induced optical luminescence intensity of the double-structure screen exhibited a 31% increase compared to the corresponding single-structure scintillation screen. In X-ray imaging, a spatial resolution of 109 lp/mm was achieved, which closely matched the results obtained with the single-structure CsI screen. Furthermore, the detective quantum efficiency also displayed a notable improvement.
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Chen Y, Ni C, Zhang X, Ni Z, Xiang N. High-Throughput Sorting and Single-Cell Mechanotyping by Hydrodynamic Sorting-Mechanotyping Cytometry. Small Methods 2024:e2301195. [PMID: 38213022 DOI: 10.1002/smtd.202301195] [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] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/28/2023] [Indexed: 01/13/2024]
Abstract
The existence of many background blood cells hinders the accurate identification of circulating tumor cells (CTCs) in the blood of cancer patients. To unlock this limitation, a hydrodynamic sorting-mechanotyping cytometry (HSMC) integrated with a sorting-concentration chip and a detection chip is proposed for simultaneously achieving the high-throughput cell sorting and the multi-parameter mechanotyping of the sorted tumor cells. The HSMC adopts the spiral inertial microfluidics for label-free sorting of cells in a high-throughput manner, allowing the efficient enrichment of tumor cells from the large background blood cells. Then, the sorted cells are concentrated by the concentration unit and finally passed through the detection unit for hydrodynamic deformation. The HSMC has a high throughput for sorting and detection and can successfully reveal the differences in the cellular mechanical properties. After characterizing and optimizing the single chips, the identification of white blood cells (WBCs) and three types of tumor cells (A549, MCF-7, and MDA-MB-231 cells) is successfully achieved. The identification accuracies for WBCs and different tumor cells are all larger than 94%, while the highest identification accuracy is up to 99.2%. This study envisions that the HSMC will offer an avenue for the analysis of single cell intrinsic mechanics in clinical medicine.
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Affiliation(s)
- Yao Chen
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Chen Ni
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Xiaozhe Zhang
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Zhonghua Ni
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
| | - Nan Xiang
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China
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Liang HJ, Li QR, Li BL, Ni C, Zhang WJ, Fan YW, Ao ZY, Hu JJ, Yuan J, Wu JW. Three new glycosides from the stems of Eurya chinensis R. Br. Nat Prod Res 2024; 38:28-36. [PMID: 35867026 DOI: 10.1080/14786419.2022.2103122] [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: 02/03/2022] [Accepted: 07/12/2022] [Indexed: 10/17/2022]
Abstract
Two new phenolic glycosides (1 and 2), one known analogue (3), along with a new diterpene glucoside (4) were obtained from ethanolic extract of the stems of Eurya chinensis R. Br. The structures of these isolated compounds were identified by extensive analysis of HRESIMS and NMR spectroscopic data. The cytotoxicities of these compounds were evaluated on MCF-7, A549, HepG2, CaCo2 and 5-8 F cell lines by MTT method, but no obvious activities were observed.
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Affiliation(s)
- Hui-Jun Liang
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Qian-Ran Li
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Bai-Lin Li
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Chen Ni
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Wei-Jie Zhang
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Yu-Wen Fan
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Zhuo-Yi Ao
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Juan-Juan Hu
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Jie Yuan
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Jie-Wei Wu
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
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Yan Y, Jiang T, Sui L, Ou D, Qu Y, Chen C, Lai M, Ni C, Liu Y, Wang Y, Xu D. Combined conventional ultrasonography with clinicopathological features to predict axillary status after neoadjuvant therapy for breast cancer: A case-control study. Br J Radiol 2023; 96:20230370. [PMID: 37750854 PMCID: PMC10646660 DOI: 10.1259/bjr.20230370] [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: 04/18/2023] [Revised: 08/15/2023] [Accepted: 08/24/2023] [Indexed: 09/27/2023] Open
Abstract
OBJECTIVES This study aimed to evaluate the value of a model combining conventional ultrasonography and clinicopathologic features for predicting axillary status after neoadjuvant therapy in breast cancer. METHODS This retrospective study included 329 patients with lymph node-positive who underwent neoadjuvant systemic treatment (NST) from June 2019 to March 2022. Ultrasound and clinicopathological characteristics of breast lesions and axillary lymph nodes were analyzed before and after NST. The diagnostic efficacy of ultrasound, clinicopathological characteristics, and combined model were evaluated using multivariate logistic regression and receiver operator characteristic curve (ROC) analyses. RESULTS The area under ROC (AUC) for the ability of the combined model to predict the axillary pathological complete response (pCR) after NST was 0.882, that diagnostic effectiveness was significantly better than that of the clinicopathological model (AUC of 0.807) and the ultrasound feature model (AUC of 0.795). In addition, eight features were screened as independent predictors of axillary pCR, including clinical N stage, ERBB2 status, Ki-67, and after NST the maximum diameter reduction rate and margins of breast lesions, the short diameter, cortical thickness, and fatty hilum of lymph nodes. CONCLUSIONS The combined model constructed from ultrasound and clinicopathological features for predicting axillary pCR has favorable diagnostic results, which allowed more accurate identification of BC patients who had received axillary pCR after NST. ADVANCES IN KNOWLEDGE A combined model incorporated ultrasound and clinicopathological characteristics of breast lesions and axillary lymph nodes demonstrated favorable performance in evaluating axillary pCR preoperatively and non-invasively.
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Affiliation(s)
| | | | | | | | - Yiyuan Qu
- The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, China
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Chang B, Ni C, Mei J, Xiong C, Chen P, Jiang M, Niu C. Relationship between serum uric acid levels and the outcome of STN-DBS in Parkinson's disease. Neurol Sci 2023; 44:3913-3917. [PMID: 37340228 DOI: 10.1007/s10072-023-06911-9] [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: 10/08/2022] [Accepted: 06/13/2023] [Indexed: 06/22/2023]
Abstract
BACKGROUND Uric acid is a natural antioxidant and it has been shown that low levels of uric acid may be a risk factor for the development of Parkinson's disease. We aimed to investigate the relationship between uric acid and improvement of motor symptoms in patients with Parkinson's disease after subthalamic nucleus deep brain stimulation. METHODS We analyzed the correlation between serum uric acid levels in 64 patients with Parkinson's disease and the rate of improvement of motor symptoms 2 years after subthalamic nucleus deep brain stimulation. RESULTS A non-linear correlation was observed between uric acid levels and the rate of motor symptom improvement after subthalamic nucleus deep brain stimulation, during both the drug-off and drug-on periods. CONCLUSIONS Uric acid is positively associated with the rate of motor symptom improvement in subthalamic nucleus deep brain stimulation within a certain range.
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Affiliation(s)
- Bowen Chang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People's Republic of China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, 230001, People's Republic of China
| | - Chen Ni
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People's Republic of China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, 230001, People's Republic of China
| | - Jiaming Mei
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People's Republic of China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, 230001, People's Republic of China
| | - Chi Xiong
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People's Republic of China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, 230001, People's Republic of China
| | - Peng Chen
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People's Republic of China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, 230001, People's Republic of China
| | - Manli Jiang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People's Republic of China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, 230001, People's Republic of China
| | - Chaoshi Niu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People's Republic of China.
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, 230001, People's Republic of China.
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Zhao M, Xie X, Xu B, Chen Y, Cai Y, Chen K, Guan X, Ni C, Luo X, Zhou L. Paeonol alleviates ulcerative colitis in mice by increasing short-chain fatty acids derived from Clostridium butyricum. Phytomedicine 2023; 120:155056. [PMID: 37703619 DOI: 10.1016/j.phymed.2023.155056] [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] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/17/2023] [Accepted: 08/29/2023] [Indexed: 09/15/2023]
Abstract
BACKGROUND Increasing evidence suggests that repairing the damaged intestinal epithelial barrier and restoring its function is the key to solving the problem of prolonged ulcerative colitis. Previous studies have shown that paeonol (pae) can alleviate colitis by down-regulating inflammatory pathways. In addition, pae also has a certain effect on regulating intestinal flora. However, it remains unclear whether pae can play a role in repairing the intestinal barrier and whether there is a relationship between the therapeutic effect and the gut microbiota. PURPOSES The aim of this study is to investigate the effect of pae on intestinal barrier repair in UC mice and how the gut microbiota plays a part in it. STUDY DESIGN AND METHODS The therapeutic effect of pae was evaluated in a 3% DSS-induced UC mouse model. The role of pae in repairing the intestinal barrier was evaluated by detecting colonic cupped cells by Alcian blue staining, the expression of colonic epithelial tight junction protein by immunofluorescence and western blot, and the proportion of IL-22+ILC3 cells in the lamina propria lymphocytes by flow cytometry. Subsequently, 16S rRNA sequencing was used to observe the changes in intestinal flora, GC-MS was used to detect the level of SCFAs, and qPCR was used to identify the abundance of Clostridium butyricum in the intestine to evaluate the effect of pae on the gut microbiota. The antibiotic-mediated depletion of the gut flora was then used to verify that pae depends on C. butyricum to play a healing role. Finally, non-targeted metabolomics was employed to investigate the potential pathways of pae regulating C. butyricum. RESULTS Pae could improve intestinal microecological imbalance and promote the production of short-chain fatty acids (SCFAs). Most importantly, we identified C. butyricum as a key bacterium responsible for the intestinal barrier repair effect of pae in UC mice. Eradication of intestinal flora by antibiotics abolished the repair of the intestinal barrier and the promotion of SCFAs production by pae, while C. butyricum colonization could restore the therapeutic effects of pae in UC mice, which further confirmed that C. butyricum was indeed the "driver bacterium" of pae in UC treatment. Untargeted metabolomics showed that pae regulated some amino acid metabolism and 2-Oxocarboxylic acid metabolism in C. butyricum. CONCLUSIONS Our study showed that the restoration of the impaired intestinal barrier by pae to alleviate colitis is associated with increased C. butyricum and SCFAs production, which may be a promising strategy for the treatment of UC.
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Affiliation(s)
- Meng Zhao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xueqian Xie
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bo Xu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yunliang Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yanping Cai
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kehan Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xinling Guan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chen Ni
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xia Luo
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Lian Zhou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.
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Sui L, Yan Y, Jiang T, Ou D, Chen C, Lai M, Ni C, Zhu X, Wang L, Yang C, Li W, Yao J, Xu D. Ultrasound and clinicopathological characteristics-based model for prediction of pathologic response to neoadjuvant chemotherapy in HER2-positive breast cancer: a case-control study. Breast Cancer Res Treat 2023; 202:45-55. [PMID: 37639063 PMCID: PMC10504141 DOI: 10.1007/s10549-023-07057-0] [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: 05/23/2023] [Accepted: 07/14/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND The objective of this study was to develop a model combining ultrasound (US) and clinicopathological characteristics to predict the pathologic response to neoadjuvant chemotherapy (NACT) in human epidermal growth factor receptor 2 (HER2)-positive breast cancer. MATERIALS AND METHODS This is a retrospective study that included 248 patients with HER2-positive breast cancer who underwent NACT from March 2018 to March 2022. US and clinicopathological characteristics were collected from all patients in this study, and characteristics obtained using univariate analysis at p < 0.1 were subjected to multivariate analysis and then the conventional US and clinicopathological characteristics independently associated with pathologic complete response (pCR) from the analysis were used to develop US models, clinicopathological models, and their combined models by the area under the receiver operating characteristic (ROC) curve (AUC), accuracy, sensitivity, and specificity to assess their predictive efficacy. RESULTS The combined model had an AUC of 0.808, a sensitivity of 88.72%, a specificity of 60.87%, and an accuracy of 75.81% in predicting pCR of HER2-positive breast cancer after NACT, which was significantly better than the clinicopathological model (AUC = 0.656) and the US model (AUC = 0.769). In addition, six characteristics were screened as independent predictors, namely the Clinical T stage, Clinical N stage, PR status, posterior acoustic, margin, and calcification. CONCLUSION The conventional US combined with clinicopathological characteristics to construct a combined model has a good diagnostic effect in predicting pCR in HER2-positive breast cancer and is expected to be a useful tool to assist clinicians in effectively determining the efficacy of NACT in HER2-positive breast cancer patients.
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Affiliation(s)
- Lin Sui
- Postgraduate training base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, China
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Wenling Big Data and Artificial Intelligence Institute in Medicine, Taizhou, China
- Taizhou Key Laboratory of Minimally Invasive Interventional Therapy & Artificial IntelligenceTaizhou Branch of Zhejiang Cancer Hospital(Taizhou Cancer Hospital), Taizhou, China
| | - Yuqi Yan
- Postgraduate training base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, China
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Wenling Big Data and Artificial Intelligence Institute in Medicine, Taizhou, China
- Taizhou Key Laboratory of Minimally Invasive Interventional Therapy & Artificial IntelligenceTaizhou Branch of Zhejiang Cancer Hospital(Taizhou Cancer Hospital), Taizhou, China
| | - Tian Jiang
- Postgraduate training base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, China
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Di Ou
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Chen Chen
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Wenling Big Data and Artificial Intelligence Institute in Medicine, Taizhou, China
- Taizhou Key Laboratory of Minimally Invasive Interventional Therapy & Artificial IntelligenceTaizhou Branch of Zhejiang Cancer Hospital(Taizhou Cancer Hospital), Taizhou, China
- Graduate School, Wannan Medical College, Wuhu, China
| | - Min Lai
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, China
| | - Chen Ni
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Xi Zhu
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Wenling Big Data and Artificial Intelligence Institute in Medicine, Taizhou, China
- Taizhou Key Laboratory of Minimally Invasive Interventional Therapy & Artificial IntelligenceTaizhou Branch of Zhejiang Cancer Hospital(Taizhou Cancer Hospital), Taizhou, China
| | - Liping Wang
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Chen Yang
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Wei Li
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Jincao Yao
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
- Zhejiang Provincial Research Center for Cancer Intelligent Diagnosis and Molecular Technology, Hangzhou, China
| | - Dong Xu
- Postgraduate training base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, China
- Department of Diagnostic Ultrasound Imaging & Interventional Therapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, China
- Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
- Zhejiang Provincial Research Center for Cancer Intelligent Diagnosis and Molecular Technology, Hangzhou, China
- Wenling Big Data and Artificial Intelligence Institute in Medicine, Taizhou, China
- Taizhou Key Laboratory of Minimally Invasive Interventional Therapy & Artificial IntelligenceTaizhou Branch of Zhejiang Cancer Hospital(Taizhou Cancer Hospital), Taizhou, China
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Zhou Z, Ni C, Zhu Z, Chen Y, Ni Z, Xiang N. High-throughput adjustable deformability cytometry utilizing elasto-inertial focusing and virtual fluidic channel. Lab Chip 2023; 23:4528-4539. [PMID: 37766593 DOI: 10.1039/d3lc00591g] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Cell mechanical properties provide a label-free marker for indicating cell states and disease processes. Although microfluidic deformability cytometry has demonstrated great potential and successes in mechanical phenotyping in recent years, its universal applicability for characterizing multiple sizes of cells using a single device has not been realized. Herein, we propose high-throughput adjustable deformability cytometry integrated with three-dimensional (3D) elasto-inertial focusing and a virtual fluidic channel. By properly adjusting the flow ratio of the sample and sheath, the virtual fluidic channel in a wide solid channel can generate a strong shear force in the normal direction of the flow velocity and simultaneously squeeze cells from both sides to induce significant cell deformation. The combination of elasto-inertial focusing and a virtual fluidic channel provides a great hydrodynamic symmetrical force for inducing significant and homogeneous cell deformation. In addition, our deformability cytometry system not only achieves rapid and precise cell deformation, but also allows the adjustable detection of multiple sizes of cells at a high throughput of up to 3000 cells per second. The mini-bilateral segmentation network (mini-BiSeNet) was developed to identify cells and extract features quickly. The classification of different cell populations (A549, MCF-7, MDA-MB-231, and WBCs) was carried out based on the cell size and deformation. By applying deep learning to cell classification, a high accuracy reaching approximately 90% was achieved. We also revealed the potential of our deformability cytometry for characterizing pleural effusions. The flexibility of our deformability cytometry holds promise for the mechanical phenotyping and detection of various biological samples.
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Affiliation(s)
- Zheng Zhou
- School of Mechanical Engineering, and, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Chen Ni
- School of Mechanical Engineering, and, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Zhixian Zhu
- School of Mechanical Engineering, and, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Yao Chen
- School of Mechanical Engineering, and, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Zhonghua Ni
- School of Mechanical Engineering, and, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Nan Xiang
- School of Mechanical Engineering, and, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
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12
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Chang B, Mei J, Ni C, Niu C. Functional Connectivity and Anxiety Improvement After Subthalamic Nucleus Deep Brain Stimulation in Parkinson's Disease. Clin Interv Aging 2023; 18:1437-1445. [PMID: 37663121 PMCID: PMC10474892 DOI: 10.2147/cia.s422605] [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] [Accepted: 08/23/2023] [Indexed: 09/05/2023] Open
Abstract
Background Anxiety is one of the most common and disturbing non-motor symptoms of Parkinson's disease (PD). However, few studies have explored the relationship between functional connectivity (FC) and the rate of anxiety improvement after subthalamic nucleus deep brain stimulation (STN-DBS). Therefore, in this study, we aimed to explore the correlation between FC and the rate of anxiety improvement in patients with PD who underwent STN-DBS. Methods The resting-state functional magnetic resonance imaging (rs-fMRI) data of 62 patients with anxious PD (aPD), 68 patients with PD without anxiety (naPD), and 64 healthy controls (HCs) were analyzed according to FC. Intergroup comparison and correlation analyses of anxiety improvement rates were performed. Results The HC, aPD and naPD groups of zFCs were then used for the ANOVA test, and the results were FDR-corrected. There were 24 significant differences in FCs between the three groups. Post tests were conducted between groups found that 15 significantly different FCs were observed between the naPD and aPD groups. In addition, the two FCs in patients with aPD were significantly correlated with the rate of improvement in anxiety. Conclusion We found that the two FCs in patients with aPD (olfactory cortex and inferior frontal gyrus [IFG] pars orbitalis; inferior temporal gyrus and posterior orbital gyrus) were significantly correlated with the rate of improvement in anxiety. Our study may help us understand the underlying mechanisms by which STN-DBS improves anxiety in PD patients and identify more effective treatment strategies.
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Affiliation(s)
- Bowen Chang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, People’s Republic of China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, People’s Republic of China
| | - Jiaming Mei
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, People’s Republic of China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, People’s Republic of China
| | - Chen Ni
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, People’s Republic of China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, People’s Republic of China
| | - Chaoshi Niu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, People’s Republic of China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, People’s Republic of China
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13
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Teng Y, Gu M, Sun Z, Liu X, Liu B, Zhang J, Huang S, Ni C, Zhao J. Optimization of SiO 2 reflective layer thickness for improving the performance of structured CsI scintillation screen based on oxidized Si micropore array template in X-ray imaging. Opt Express 2023; 31:24097-24109. [PMID: 37475245 DOI: 10.1364/oe.493389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/21/2023] [Indexed: 07/22/2023]
Abstract
Structured scintillation screen based on oxidized Si micropore array template can effectively improve the spatial resolution of X-ray imaging. The purpose of this study is to investigate the effect of SiO2 layer thickness on the light guide and X-ray imaging performance of CsI scintillation screen when the structural period is as small as microns. Cylindrical micropores with a period of 4.3 µm, an average diameter of 3.3 µm and a depth of about 40 µm were prepared in Si wafers. SiO2 layer was formed on the pore walls after thermal oxidation. Increasing SiO2 layer thickness would be beneficial to the propagation of scintillation light along the cylindrical channels. What was not previously anticipated was that the pore size gradually shrank as the SiO2 layer thickened. The pore shrinkage would reduce the filling rate of CsI in the templates and thus would reduce the production of scintillation light. The structured CsI scintillation screens with different SiO2 layer thicknesses were fabricated by filling CsI scintillator into the oxidized silicon micropore array template. The morphology, crystallinity, X-ray excited optical luminescence, and X-ray imaging performance of the screens were studied. The results show that the spatial resolutions of X-ray images measured using the structured CsI scintillation screens with different SiO2 layer thicknesses are close to each other, and they are all about 110 lp/mm. However, the X-ray excited optical luminescence of the screen and detective quantum efficiency of X-ray imaging vary with the thickness of the SiO2 layer. The optimal thickness is about 350 nm.
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14
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Xu Q, Zhang P, Han X, Ren H, Yu W, Hao W, Luo B, Khan MI, Ni C. Role of ionizing radiation activated NRF2 in lung cancer radioresistance. Int J Biol Macromol 2023; 241:124476. [PMID: 37076059 DOI: 10.1016/j.ijbiomac.2023.124476] [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: 10/16/2022] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/21/2023]
Abstract
Radiotherapies are commonly used to target remaining tumor niches after surgery of solid tumors but are restricted due to therapeutic resistance. Several pathways of radioresistance have been reported in various cancers. This study investigates the pivotal role of Nuclear factor-erythroid 2-related factor 2 (NRF2) in the activation of DNA damage repair in lung cancer cells after x-rays exposure. To explore the NRF2 activation after ionizing irradiations, this study uses a knockdown of NRF2, which shows potential DNA damage after x-rays irradiation in lung cancers. This work further shows that NRF2 knockdown disrupts damaged DNA repair by inhibiting DNA-dependent protein kinase catalytic subunit. At the same time, NRF2 knockdown by shRNA considerably disparate homologous recombination by interfering with Rad51 expression. Further investigation of the associated pathway reveals that NRF2 activation mediates DNA damage response via the mitogen-activated protein kinase (MAPK) pathway as the knockout of NRF2 directly enhances intracellular MAPK phosphorylation. Similarly, both NAC and constitutive knockout of NRF2 disrupt DNA-dependent protein kinase catalytic subunit, while NRF2 knockout failed to upregulate Rad51 expression after irradiation in-vivo. Taken together, these findings advocate NRF2 plays a critical role in the development of radioresistance by upregulating DNA damage response via the MAPK pathway, which can be of great significance.
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Affiliation(s)
- Qianqian Xu
- Teaching and Research section of Nuclear Medicine, Anhui Medical University, Hefei 230032, Anhui, PR China
| | - Peiyu Zhang
- Teaching and Research section of Nuclear Medicine, Anhui Medical University, Hefei 230032, Anhui, PR China
| | - Xiaoyang Han
- Teaching and Research section of Nuclear Medicine, Anhui Medical University, Hefei 230032, Anhui, PR China
| | - Huwei Ren
- Teaching and Research section of Nuclear Medicine, Anhui Medical University, Hefei 230032, Anhui, PR China
| | - Weiyue Yu
- Teaching and Research section of Nuclear Medicine, Anhui Medical University, Hefei 230032, Anhui, PR China
| | - Wei Hao
- Teaching and Research section of Nuclear Medicine, Anhui Medical University, Hefei 230032, Anhui, PR China
| | - Bowen Luo
- Teaching and Research section of Nuclear Medicine, Anhui Medical University, Hefei 230032, Anhui, PR China
| | - Muhammad Imran Khan
- Hefei National Lab for Physical Sciences at Microscale and the Center for Biomedical Engineering, University of Science and Technology of China, Hefei 230026, Anhui, PR China; School of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230036, Anhui, PR China; Department of Pathology, District Headquarters Hospital, Jhang 35200, Punjab province, Pakistan..
| | - Chen Ni
- Teaching and Research section of Nuclear Medicine, Anhui Medical University, Hefei 230032, Anhui, PR China.
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Sun C, Zhang K, Ni C, Wan J, Duan X, Lou X, Yao X, Li X, Wang M, Gu Z, Yang P, Li Z, Qin Z. Transgelin promotes lung cancer progression via activation of cancer-associated fibroblasts with enhanced IL-6 release. Oncogenesis 2023; 12:18. [PMID: 36990991 DOI: 10.1038/s41389-023-00463-5] [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: 09/05/2022] [Revised: 03/09/2023] [Accepted: 03/10/2023] [Indexed: 03/31/2023] Open
Abstract
Cancer-associated fibroblasts (CAFs), the principal constituent of the heterogenous tumor microenvironment, have been shown to promote tumor progression; however, the underlying mechanism is still less clear. Here, we find that transgelin (TAGLN) protein levels increased in primary CAFs isolated from human lung cancer, compared with those in paired normal fibroblasts. Tumor microarrays (TMAs) revealed that increased stromal TAGLN levels correlates with more lymphatic metastasis of tumor cells. In a subcutaneous tumor transplantation model, overexpression of Tagln in fibroblasts also increased tumor cell spread in mice. Further experiments show that Tagln overexpression promoted fibroblast activation and mobility in vitro. And TAGLN facilitates p-p65 entry into the nucleus, thereby activating the NF-κB signaling pathway in fibroblasts. Activated fibroblasts promote lung cancer progression via enhancing the release of pro-inflammatory cytokines, especially interleukine-6 (IL-6). Our study revealed that the high levels of stromal TAGLN is a predictive risk factor for patients with lung cancer. Targeting stromal TAGLN may present an alternative therapeutic strategy against lung cancer progression.
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Affiliation(s)
- Chanjun Sun
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Kaishang Zhang
- Thoracic Surgery Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Chen Ni
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Jiajia Wan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Xixi Duan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Xiaohan Lou
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Xiaohan Yao
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Xiangnan Li
- Thoracic Surgery Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Ming Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Zhuoyu Gu
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Pengyuan Yang
- Key Laboratory of Infection and Immunity of CAS, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 100101, Beijing, China
| | - Zhenzhen Li
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China.
| | - Zhihai Qin
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China.
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, No. 15 Datun Road, Chaoyang Area, 100101, Beijing, China.
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Pan L, Zhang L, Deng W, Lou J, Gao X, Lou X, Liu Y, Yao X, Sheng Y, Yan Y, Ni C, Wang M, Tian C, Wang F, Qin Z. Spleen-selective co-delivery of mRNA and TLR4 agonists-loaded lipid nanoparticles for potent cancer immunotherapy via synergistic immunostimulation and Th1 immune responses. J Control Release 2023; 357:133-148. [PMID: 36972863 DOI: 10.1016/j.jconrel.2023.03.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/01/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023]
Abstract
Spleen is an ideal site for initiating and amplifying antigen-specific immune response. However, spleen-selective antigen delivery has limited tumor therapeutic efficacy owing to an inadequate cytotoxic T-cell immune response. In this study, we designed a spleen-selective mRNA vaccine that delivered unmodified mRNA and Toll-like Receptor (TLR) agonists to the spleen after systemic administration, resulting in a sufficient and persistent antitumor cellular immune response with potent tumor immunotherapeutic efficacy. To establish potent tumor vaccines (sLNPs-OVA/MPLA), we co-loaded stearic acid doped lipid nanoparticles with ovalbumin (OVA)-coding mRNA and TLR4 agonists (MPLA). We found that sLNPs-OVA/MPLA facilitated tissue-specific mRNA expression in the spleen after intravenous injection and elicited enhanced adjuvant activity with Th1 immune responses by activating multiple TLRs. In a prophylactic mouse model, sLNPs-OVA/MPLA induced a potent antigen-specific cytotoxic T cell immune response and ultimately prevented the growth of EG.7-OVA tumors with persistent immune memory protection. In addition, sLNPs-OVA/MPLA effectively delayed the tumor growth of EG.7-OVA subcutaneously transplanted lymphoma and lung metastasis formation of B16F10-OVA intravenously injected melanoma. This study showed that the co-delivery of mRNA antigens and appropriate TLR agonists could significantly improve the antitumor immunotherapeutic efficacy of spleen-targeted mRNA vaccines via synergistic immunostimulation and Th1 immune responses.
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Affiliation(s)
- Longze Pan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China; Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Lijing Zhang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Wenjing Deng
- Department of Neuro-Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Jia Lou
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Xiaoke Gao
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Xiaohan Lou
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Yangyang Liu
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Xiaohan Yao
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Yuqiao Sheng
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Yan Yan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Chen Ni
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Ming Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Chuntao Tian
- Department of Oncology, Sanmenxia Central Hospital, Sanmenxia 472000, China
| | - Fazhan Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China.
| | - Zhihai Qin
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China; Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, Henan, China.
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17
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Chang B, Xiong C, Ni C, Chen P, Jiang M, Mei J, Niu C. Prediction of STN-DBS for Parkinson's disease by uric acid-related brain function connectivity: A machine learning study based on resting state function MRI. Front Aging Neurosci 2023; 15:1105107. [PMID: 36824266 PMCID: PMC9941535 DOI: 10.3389/fnagi.2023.1105107] [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: 11/22/2022] [Accepted: 01/20/2023] [Indexed: 02/10/2023] Open
Abstract
Introduction Parkinson's disease (PD) is a neurodegenerative disorder characterized by dyskinesia and is closely related to oxidative stress. Uric acid (UA) is a natural antioxidant found in the body. Previous studies have shown that UA has played an important role in the development and development of PD and is an important biomarker. Subthalamic nucleus deep brain stimulation (STN-DBS) is a common treatment for PD. Methods Based on resting state function MRI (rs-fMRI), the relationship between UA-related brain function connectivity (FC) and STN-DBS outcomes in PD patients was studied. We use UA and DC values from different brain regions to build the FC characteristics and then use the SVR model to predict the outcome of the operation. Results The results show that PD patients with UA-related FCs are closely related to STN-DBS efficacy and can be used to predict prognosis. A machine learning model based on UA-related FC was successfully developed for PD patients. Discussion The two biomarkers, UA and rs-fMRI, were combined to predict the prognosis of STN-DBS in treating PD. Neurosurgeons are provided with effective tools to screen the best candidate and predict the prognosis of the patient.
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Affiliation(s)
- Bowen Chang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China,Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, Anhui, China
| | - Chi Xiong
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China,Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, Anhui, China
| | - Chen Ni
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China,Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, Anhui, China
| | - Peng Chen
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China,Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, Anhui, China
| | - Manli Jiang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China,Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, Anhui, China
| | - Jiaming Mei
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China,Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, Anhui, China
| | - Chaoshi Niu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China,Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, Anhui, China,*Correspondence: Chaoshi Niu,
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Li A, Zhu L, Lei N, Wan J, Duan X, Liu S, Cheng Y, Wang M, Gu Z, Zhang H, Bai Y, Zhang L, Wang F, Ni C, Qin Z. S100A4-dependent glycolysis promotes lymphatic vessel sprouting in tumor. Angiogenesis 2023; 26:19-36. [PMID: 35829860 DOI: 10.1007/s10456-022-09845-6] [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: 02/15/2022] [Accepted: 06/20/2022] [Indexed: 01/12/2023]
Abstract
Tumor-induced lymphangiogenesis promotes the formation of new lymphatic vessels, contributing to lymph nodes (LNs) metastasis of tumor cells in both mice and humans. Vessel sprouting appears to be a critical step in this process. However, how lymphatic vessels sprout during tumor lymphangiogenesis is not well-established. Here, we report that S100A4 expressed in lymphatic endothelial cells (LECs) promotes lymphatic vessel sprouting in a growing tumor by regulating glycolysis. In mice, the loss of S100A4 in a whole body (S100A4-/-), or specifically in LECs (S100A4ΔLYVE1) leads to impaired tumor lymphangiogenesis and disrupted metastasis of tumor cells to sentinel LNs. Using a 3D spheroid sprouting assay, we found that S100A4 in LECs was required for the lymphatic vessel sprouting. Further investigations revealed that S100A4 was essential for the position and motility of tip cells, where it activated AMPK-dependent glycolysis during lymphatic sprouting. In addition, the expression of S100A4 in LECs was upregulated under hypoxic conditions. These results suggest that S100A4 is a novel regulator of tumor-induced lymphangiogenesis. Targeting S100A4 in LECs may be a potential therapeutic strategy for lymphatic tumor metastasis.
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Affiliation(s)
- Anqi Li
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
- School of Basic Medical Sciences, The Academy of Medical Sciences of Zhengzhou University, Zhengzhou, Henan, China
| | - Linyu Zhu
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
| | - Ningjing Lei
- School of Basic Medical Sciences, The Academy of Medical Sciences of Zhengzhou University, Zhengzhou, Henan, China
| | - Jiajia Wan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Xixi Duan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Shuangqing Liu
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yanru Cheng
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Ming Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhuoyu Gu
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Huilei Zhang
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yueyue Bai
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Li Zhang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Fazhan Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Chen Ni
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhihai Qin
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.
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Chang B, Mei J, Ni C, Xiong C, Chen P, Jiang M, Niu C. Development and Validation of a Prediction Model for Anxiety Improvement after Deep Brain Stimulation for Parkinson Disease. Brain Sci 2023; 13:brainsci13020219. [PMID: 36831762 PMCID: PMC9954104 DOI: 10.3390/brainsci13020219] [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: 12/06/2022] [Revised: 12/29/2022] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Parkinson's disease (PD) represents one of the most frequently seen neurodegenerative disorders, while anxiety accounts for its non-motor symptom (NMS), and it has greatly affected the life quality of PD cases. Bilateral subthalamic nucleus deep brain stimulation (STN-DBS) can effectively treat PD. This study aimed to develop a clinical prediction model for the anxiety improvement rate achieved in PD patients receiving STN-DBS. METHODS The present work retrospectively enrolled 103 PD cases undergoing STN-DBS. Patients were followed up for 1 year after surgery to analyze the improvement in HAMA scores. Univariate and multivariate logistic regression were conducted to select factors affecting the Hamilton Anxiety Scale (HAMA) improvement. A nomogram was established to predict the likelihood of achieving anxiety improvement. Receiver operating characteristic (ROC) curve analysis, decision curve analysis (DCA), and calibration curve analysis were conducted to verify nomogram performance. RESULTS The mean improvement in HAMA score was 23.9% in 103 patients; among them, 68.9% had improved anxiety, 25.2% had worsened (Preop) anxiety, and 5.8% had no significant change in anxiety. Education years, UPDRS-III preoperative score, and HAMA preoperative score were independent risk factors for anxiety improvement. The nomogram-predicted values were consistent with real probabilities. CONCLUSIONS Collectively, a nomogram is built in the present work for predicting anxiety improvement probability in PD patients 1 year after STN-DBS. The model is valuable for determining expected anxiety improvement in PD patients undergoing STN-DBS.
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Affiliation(s)
- Bowen Chang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Jiaming Mei
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Chen Ni
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Chi Xiong
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Peng Chen
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Manli Jiang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Chaoshi Niu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
- Correspondence:
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20
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Ni C, Feng B, Yao J, Zhou X, Shen J, Ou D, Peng C, Xu D. Value of deep learning models based on ultrasonic dynamic videos for distinguishing thyroid nodules. Front Oncol 2023; 12:1066508. [PMID: 36733368 PMCID: PMC9887311 DOI: 10.3389/fonc.2022.1066508] [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: 10/10/2022] [Accepted: 12/28/2022] [Indexed: 01/18/2023] Open
Abstract
Objective This study was designed to distinguish benign and malignant thyroid nodules by using deep learning(DL) models based on ultrasound dynamic videos. Methods Ultrasound dynamic videos of 1018 thyroid nodules were retrospectively collected from 657 patients in Zhejiang Cancer Hospital from January 2020 to December 2020 for the tests with 5 DL models. Results In the internal test set, the area under the receiver operating characteristic curve (AUROC) was 0.929(95% CI: 0.888,0.970) for the best-performing model LSTM Two radiologists interpreted the dynamic video with AUROC values of 0.760 (95% CI: 0.653, 0.867) and 0.815 (95% CI: 0.778, 0.853). In the external test set, the best-performing DL model had AUROC values of 0.896(95% CI: 0.847,0.945), and two ultrasound radiologist had AUROC values of 0.754 (95% CI: 0.649,0.850) and 0.833 (95% CI: 0.797,0.869). Conclusion This study demonstrates that the DL model based on ultrasound dynamic videos performs better than the ultrasound radiologists in distinguishing thyroid nodules.
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Affiliation(s)
- Chen Ni
- The Second Clinical School of Zhejiang Chinese Medical University, Hangzhou, China
| | - Bojian Feng
- Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Jincao Yao
- Department of Ultrasonography, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer, Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Xueqin Zhou
- Clinical Research Department, Esaote (Shenzhen) Medical Equipment Co., Ltd., Xinyilingyu Research Center, Shenzhen, China
| | - Jiafei Shen
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China; Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Di Ou
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China; Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Chanjuan Peng
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China; Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Dong Xu
- Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China,Department of Ultrasonography, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer, Chinese Academy of Sciences, Hangzhou, Zhejiang, China,*Correspondence: Dong Xu,
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21
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Wang R, Ni C, Lou X, Zhang L, Wang L, Yao X, Duan X, Wan J, Li P, Qin Z. IFNγ blockade in capillary leak site improves tumour chemotherapy by inhibiting lactate-induced endocytosis of vascular endothelial-cadherins. Int J Biol Sci 2023; 19:1490-1508. [PMID: 37056922 PMCID: PMC10086745 DOI: 10.7150/ijbs.78248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 02/12/2023] [Indexed: 03/14/2023] Open
Abstract
IFNγ has long been recognised as a key mediator of tumour immunity and angiostasis. However, IFNγ modulation for cancer therapy is still unsuccessful due to its complex effects on various host cells. In this study, we found that treatment of Lewis lung carcinoma transplants with cisplatin often caused IFNγ-dependent tumour vascular damage. IFNγ induced endothelial glycolysis and lactate production, leading to enhanced endocytosis of vascular endothelial (VE)-cadherin and vessel leakage. We have also developed anti-IFNγ nanoparticles coated with a clot-binding peptide CREKA (CREKA-lipo-anti-IFNγ), which targets the fibrin-fibronectin complex that appears in the leaky site of damaged tumour blood vessels. Blocking IFNγ activity in the leakage site of capillaries using nanoparticles rescued VE-cadherin distribution on the endothelial cellular surface, promoted blood vessel integrity, and improved drug delivery. In conclusion, IFNγ blockade in capillary leak site protected tumour blood vessels from lactate-dependent VE-cadherin loss and enhanced drug delivery during chemotherapy, which provides a basis for tissue-specific IFNγ blockade for tumour therapy.
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22
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Ni C, Zhu Z, Zhou Z, Xiang N. High-Throughput Separation and Enrichment of Rare Malignant Tumor Cells from Large-Volume Effusions by Inertial Microfluidics. Methods Mol Biol 2023; 2679:193-206. [PMID: 37300617 DOI: 10.1007/978-1-0716-3271-0_13] [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] [Indexed: 06/12/2023]
Abstract
Detection of malignant tumor cells (MTCs) in pleural effusions is essential for determining the malignancy. However, the sensitivity of MTC detection is significantly decreased due to the existence of a massive number of background blood cells in large-volume samples. Herein, we provide a method for on-chip separation and enrichment of MTCs from malignant pleural effusions (MPEs) by integrating an inertial microfluidic sorter with an inertial microfluidic concentrator. The designed sorter and concentrator are capable of focusing cells toward the specified equilibrium positions by inducing intrinsic hydrodynamic forces, enabling the size-based sorting of cells and the removal of cell-free fluids for cell enrichment. A 99.9% removal of background cells and a nearly 1400-fold ultrahigh enrichment of MTCs from large-volume MPEs can be achieved by this method. The concentrated high-purity MTC solution can be used directly for cytological examination by immunofluorescence staining, enhancing the accurate identification of MPEs. The proposed method can also be employed for the detection and count of rare cells in various clinical samples.
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Affiliation(s)
- Chen Ni
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, China
| | - Zhixian Zhu
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, China
| | - Zheng Zhou
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, China
| | - Nan Xiang
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, China.
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23
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Ni C, Zhou Z, Zhu Z, Jiang D, Xiang N. Controllable Size-Independent Three-Dimensional Inertial Focusing in High-Aspect-Ratio Asymmetric Serpentine Microchannels. Anal Chem 2022; 94:15639-15647. [DOI: 10.1021/acs.analchem.2c02361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chen Ni
- School of Mechanical Engineering and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing211189, China
| | - Zheng Zhou
- School of Mechanical Engineering and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing211189, China
| | - Zhixian Zhu
- School of Mechanical Engineering and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing211189, China
| | - Di Jiang
- College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing210037, China
- Jiangsu Yuyue Medical Equipment and Supply Co., Ltd., Jiangsu, Danyang212300, China
| | - Nan Xiang
- School of Mechanical Engineering and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing211189, China
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Lan Q, Liu C, Wu Z, Ni C, Li J, Huang C, Wang H, Wei G. Does the Metabolome of Wild-like Dendrobium officinale of Different Origins Have Regional Differences? Molecules 2022; 27:molecules27207024. [PMID: 36296615 PMCID: PMC9609934 DOI: 10.3390/molecules27207024] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/13/2022] [Accepted: 10/16/2022] [Indexed: 11/30/2022] Open
Abstract
Dendrobium officinale, as a traditional Chinese medicine, has considerable commercial value and pharmacological activity. Environmental factors of different origins have a great influence on Dendrobium officinale metabolites, which affect its pharmacological activity. This study sought to identify the differential metabolites of wild-imitating cultivated D. officinale stems of different origins. Using the widely-targeted metabolomics approach, 442 metabolites were detected and characterized, including flavonoids, lipids, amino acids and derivatives, and alkaloids. We found that although the chemical constitution of D. officinale cultured in the three habitats was parallel, the contents were significantly different. Meanwhile, the KEGG pathway enrichment analysis revealed that the distinctive metabolites among the three groups were mainly involved in flavone and flavonol biosynthesis. To further explore the different contents of flavonoids, HPLC was performed on four main flavonoid contents, which can be used as one of the references to distinguish D. officinale from different growing origins. In conclusion, a comprehensive profile of the metabolic differences of D. officinale grown in different origins was provided, which contributed a scientific basis for further research on the quality evaluation of D. officinale.
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Affiliation(s)
- Qiqian Lan
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Chenxing Liu
- Shaoguan Institute of Danxia Dendrobium Officinale, Shaoguan 512005, China
- Hantai Biomedical Group Co., Ltd. Zibo Br, Zibo 255000, China
| | - Zhanghua Wu
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Chen Ni
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Jinyan Li
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
- Shaoguan Institute of Danxia Dendrobium Officinale, Shaoguan 512005, China
| | - Chunlei Huang
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
- Shaoguan Institute of Danxia Dendrobium Officinale, Shaoguan 512005, China
| | - Huan Wang
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
- Hunan Institute for Drug Control, Changsha 410001, China
- Correspondence: (H.W.); (G.W.)
| | - Gang Wei
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
- Correspondence: (H.W.); (G.W.)
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Ou D, Ni C, Yao J, Lai M, Chen C, Zhang Y, Jiang T, Qian T, Wang L, Xu D. Clinical analysis of 13 cases of primary squamous-cell thyroid carcinoma. Front Oncol 2022; 12:956289. [PMID: 36052269 PMCID: PMC9424675 DOI: 10.3389/fonc.2022.956289] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectiveTo analyze the clinical features, ultrasonographic manifestations, pathological features, treatment and prognosis of primary thyroid squamous cell carcinoma (PSCTC) and summarize the experience in diagnosis and treatment of this condition.MethodsA retrospective analysis was conducted on patients who were admitted to Zhejiang Cancer Hospital from 2007 to 2021 due to thyroid nodules or thyroid malignant tumors that were ultimately confirmed by postoperative pathology as primary thyroid squamous cell carcinoma. We summarize the general situation, clinical information, laboratory examination, ultrasonic image characteristics, pathological examination, clinical treatment and prognosis of the patients.ResultsPSCTC is most often seen in older men and progresses rapidly. In laboratory tests, some patients had elevated levels of tumor markers (CA199, squamous cell carcinoma antigen level), thyroglobulin levels and tumor-related substances, but all these indicators lacked specificity. The ultrasound features of PSCTC are mainly hypoechoic, hard, substantial nodules with gross borders and a grade 1-2 blood flow signal, sometimes with signs of necrosis and calcification. In terms of treatment, PSCTC is mainly surgically resected, though some patients in this study underwent iodine-131 radiation therapy, local radiotherapy, and chemotherapy with unclear results. None of the patients survived for very long after treatment, but the prognosis of patients with highly differentiated squamous carcinoma was significantly better than that of patients with poorly differentiated squamous carcinoma. Papillary thyroid carcinoma may be one of the causes of PSCTC.ConclusionPSCTC is a malignant tumor with high malignancy and rapid clinical progression. Treatment options are mainly based on surgical resection and can be supplemented with radiotherapy and chemotherapy, but there is still a lack of a standardized treatment management system, and more cases and reports are needed to accumulate data.
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Affiliation(s)
- Di Ou
- Department of Ultrasonography, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
- Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
| | - Chen Ni
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jincao Yao
- Department of Ultrasonography, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Min Lai
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chen Chen
- Graduate School, Wannan Medical College, Hangzhou, China
| | - Yajiao Zhang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Tian Jiang
- The Postgraduate Training Base, Wen Zhou Medical University, Hangzhou, China
| | - Tingting Qian
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Liping Wang
- Department of Ultrasonography, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
- *Correspondence: Liping Wang, ; Dong Xu,
| | - Dong Xu
- Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
- Institute of Basic Medicine and Cancer, Chinese Academy of Sciences, Hangzhou, China
- *Correspondence: Liping Wang, ; Dong Xu,
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Shi M, Liu Y, Huang J, Chen Z, Ni C, Lu J, Zhang Y, Liu Z, Bai J. Multifunctional theranostic nanoplatform loaded with autophagy inhibitor for enhanced photothermal cancer therapy under mild near-infrared irradiation. Biomater Adv 2022; 138:212919. [PMID: 35913232 DOI: 10.1016/j.bioadv.2022.212919] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/11/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
Photothermal therapy (PTT) usually causes hyperthermia and damages healthy tissues. Developing a PTT platform with enhanced therapeutic effects and reduced side effects to normal tissues attracts increasing attention. Herein, we developed a multifunctional theranostic nanoplatform using poly(lactic-co-glycolic acid) (PLGA) loaded with near-infrared (NIR) photothermal agent (new indocyanine green IR820), fluorescence imaging agent (ZnCdSe/ZnS quantum dots, QDs) and autophagy inhibitor (chloroquine, CQ). These PLGA/IR820/Fluorescence imaging agent/CQ co-loading nanoparticles (termed PIFC NPs) displayed photothermal effects, enhanced the stability of IR820 in vivo, and enabled QDs to have stable fluorescent signals in vitro and in vivo. The PIFC NPs with particle size around 240 nm aggregated to tumor sites through the high permeability and retention effects of solid tumors. The intracellular delivery of CQ molecules through PIFC NPs significantly attenuated the degradation of autophagic lysosomes in tumor cells and effectively inhibited the autophagy mediated repair of photothermal damaged cells. Under milder NIR irradiation conditions, PIFC NPs exhibited high antitumor effect. By regulating autophagy, PTT can be effectively sensitized, which will provide a new idea for future cancer treatment research.
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Affiliation(s)
- Meilin Shi
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China; Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China; Institute of Medical Imaging and Digital Medicine, Xuzhou Medical University, Xuzhou 221004, China
| | - Yawen Liu
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Jie Huang
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Zhian Chen
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Chen Ni
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Jiahui Lu
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Yingying Zhang
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China; Institute of Medical Imaging and Digital Medicine, Xuzhou Medical University, Xuzhou 221004, China
| | - Zhenbao Liu
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China.
| | - Jin Bai
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China.
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Chang B, Ni C, Mei J, Xiong C, Chen P, Jiang M, Niu C. Nomogram for Predicting Depression Improvement after Deep Brain Stimulation for Parkinson’s Disease. Brain Sci 2022; 12:brainsci12070841. [PMID: 35884652 PMCID: PMC9313072 DOI: 10.3390/brainsci12070841] [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: 05/12/2022] [Revised: 06/20/2022] [Accepted: 06/25/2022] [Indexed: 12/04/2022] Open
Abstract
Background: Parkinson’s disease is a common neurodegenerative disease, with depression being a common non-motor symptom. Bilateral subthalamic nucleus deep brain stimulation is an effective method for the treatment of Parkinson’s disease. Thus, this study aimed to establish a nomogram of the possibility of achieving a better depression improvement rate after subthalamic nucleus deep brain stimulation in patients with Parkinson’s disease. Methods: We retrospectively analyzed 103 patients with Parkinson’s disease who underwent subthalamic nucleus deep brain stimulation and were followed up for the improvement of their Hamilton Depression scale scores 1 year postoperatively. Univariate and multivariate logistic regression analyses were used to select factors affecting the improvement rate of depression. A nomogram was then developed to predict the possibility of achieving better depression improvement. Furthermore, the discrimination and fitting performance was evaluated using a calibration diagram, receiver operating characteristics, and decision curve analysis. Results: The mean and median improvement rates of Hamilton Depression scores were 13.1 and 33.3%, respectively. Among the 103 patients, 70.8% had an improved depression, 23.3% had a worsened depression, and 5.8% remained unchanged. Logistic multivariate regression analysis showed that age, preoperative Parkinson’s Disease Questionnaire, Hamilton Anxiety, and Hamilton Depression scores were independent factors for the possibility of achieving a better depression improvement rate. Based on these results, a nomogram model was developed. The nomogram had a C-index of 0.78 (95% confidence interval: 0.69–0.87) and an area under the receiver operating characteristics of 0.78 (95% confidence interval: 0.69–0.87). The calibration plot and decision curve analysis further demonstrated goodness-of-fit between the nomogram predictions and actual observations. Conclusion: We developed a nomogram to predict the possibility of achieving good depression improvement 1 year after subthalamic nucleus deep brain stimulation in patients with Parkinson’s disease, which showed a certain value in judging the expected depression improvement of these patients.
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Affiliation(s)
- Bowen Chang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; (B.C.); (C.N.); (J.M.); (C.X.); (P.C.); (M.J.)
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Chen Ni
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; (B.C.); (C.N.); (J.M.); (C.X.); (P.C.); (M.J.)
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Jiaming Mei
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; (B.C.); (C.N.); (J.M.); (C.X.); (P.C.); (M.J.)
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Chi Xiong
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; (B.C.); (C.N.); (J.M.); (C.X.); (P.C.); (M.J.)
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Peng Chen
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; (B.C.); (C.N.); (J.M.); (C.X.); (P.C.); (M.J.)
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Manli Jiang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; (B.C.); (C.N.); (J.M.); (C.X.); (P.C.); (M.J.)
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
| | - Chaoshi Niu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; (B.C.); (C.N.); (J.M.); (C.X.); (P.C.); (M.J.)
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei 230001, China
- Correspondence:
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Wang Y, Chen M, Ni C, Tong J, Chen P, Zhang Y, Yang G. Case Report: Primary Mediastinal Large B-Cell Lymphoma Invasion of Extranodal Thyroid Tissue Mimicking Tuberculosis and Confounded by Similar Ultrasonic Appearance. Front Oncol 2022; 12:879295. [PMID: 35664739 PMCID: PMC9159155 DOI: 10.3389/fonc.2022.879295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 03/21/2022] [Indexed: 11/23/2022] Open
Abstract
Background Primary mediastinal large B-cell lymphoma (PMBCL) is a rare type of diffuse large B-cell lymphoma, which has significant features that overlap with those of Hodgkin’s lymphoma. Ultrasound is a commonly used modality to characterize superficial lymph no5des, and ultrasonic findings are often used to distinguish lymphoma from lymph node tuberculosis in daily clinical practice. Although a common malignancy, lymphoma rarely involves extranodal tissues. Case Presentation Here we report the case of a 42-year-old Chinese male patient with PMBCL who was misdiagnosed with tuberculosis because of extranodal invasion. He visited our hospital for a neck mass that he had been noting for 1 week. Ultrasound revealed multiple enlarged lymph nodes on both sides of the neck. The lesions appeared to involve the surrounding soft tissue and thyroid gland, resembling a tuberculous sinus tract formation. Cervical spine computed tomography showed no obvious abnormalities in the cervical cone or bone damage. Contrast-enhanced ultrasound indicated that one of the enlarged lymph nodes in the right neck was rich in blood supply and exhibited centripetal enhancement, with uniform high enhancement at the peak. The patient underwent two ultrasound-guided punctures; the first puncture was performed for an enlarged lymph node in the right neck at Hangzhou Red Cross Hospital. Hodgkin’s lymphoma was suspected based on pathological and immunohistochemical findings, whereas a rare type of diffuse large B-cell lymphoma was suspected at Zhejiang Cancer Hospital. Conclusions Lymphoma is often misdiagnosed, causing delayed treatment initiation and affecting patient outcomes as the disease progresses. The present case demonstrates that the ultrasonic appearance of lymphoma may sometimes be confused with that of tuberculosis. Although ultrasound-guided needle biopsy has a high diagnostic accuracy, it may also cause diagnostic deviation because of insufficient sampling volume. Moreover, owing to the enlargement of multiple lymph nodes due to lymphoma or lymph node tuberculosis, puncturing different lymph nodes may provide different results.
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Affiliation(s)
- Ying Wang
- Department of Ultrasonography, School of Medicine, Hangzhou Normal University, Hangzhou, China
| | - Menghan Chen
- Department of Ultrasonography, School of Medicine, Hangzhou Normal University, Hangzhou, China
| | - Chen Ni
- Department of Ultrasonography, The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiahui Tong
- Department of Ultrasonography, The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Peijun Chen
- Department of Ultrasonography, The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ying Zhang
- Department of Ultrasonography, Affiliated Hangzhou Chest Hospital, Zhejiang University School of Medicine. Chinese and Western Hospital of Zhejiang Province (Hangzhou Red Cross Hospital), Hangzhou, China
| | - Gaoyi Yang
- Department of Ultrasonography, Affiliated Hangzhou Chest Hospital, Zhejiang University School of Medicine. Chinese and Western Hospital of Zhejiang Province (Hangzhou Red Cross Hospital), Hangzhou, China
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Sun Z, Gu M, Teng Y, Liu X, Liu B, Zhang J, Huang S, Ni C. Influence of the thickness of a SiO 2 reflective layer on the performance of a structured CsI(Tl) scintillation screen based on an oxidized Si micropore array template in X-ray imaging. Opt Express 2022; 30:21324-21337. [PMID: 36224854 DOI: 10.1364/oe.459637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/10/2022] [Indexed: 06/16/2023]
Abstract
To obtain better light guidance and optical isolation effects under a limited microcolumn wall thickness, the influence of the thickness of a SiO2 reflective layer on the performance of a structured CsI(Tl) scintillation screen based on an oxidized Si micropore array template in X-ray imaging was simulated. The results show that the SiO2 reflective layer should maintain a certain thickness to achieve good light-guide performance. However, if the template is entirely composed of SiO2, the light isolation performance of the microcolumn wall will be slightly worse. The results provide a basis for optimizing the thickness of SiO2 reflective layer.
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Zhu Z, Li S, Wu D, Ren H, Ni C, Wang C, Xiang N, Ni Z. High-throughput and label-free enrichment of malignant tumor cells and clusters from pleural and peritoneal effusions using inertial microfluidics. Lab Chip 2022; 22:2097-2106. [PMID: 35441644 DOI: 10.1039/d2lc00082b] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Accurate and rapid diagnosis of malignant pleural and peritoneal effusions is critical due to potential association with advanced disease stages or progression. Traditional cytodiagnosis suffers from low efficiency and has difficulties in finding malignant tumor cells (MTCs) from a mass of exfoliated cells. Hence, a polymer microfluidic chip with a slanted spiral channel was employed for high-throughput and label-free enrichment of MTCs and MTC clusters from clinical malignant pleural and peritoneal effusions. The slanted spiral channel with trapezoidal cross-sections was fabricated by assembling two patterned polymer films of different thicknesses within one flow channel layer. After systematically exploring the effects of the particle size, effusion concentration, and flow rate on separation performance of the device, we realized the enrichment of MTCs from abundant blood cells in 2-fold diluted effusions. The results indicated that approximately 85% of the spiked tumor cells (A549 and MCF-7 cell lines) were recovered with high purities of over 37% at a high throughput of 2000 μL min-1. In clinical applications, we successfully enriched 24-2691 MTCs per mL from the diluted malignant pleural and peritoneal effusions collected from four types of cancer patients (n = 22). More importantly, the MTC clusters were further purified from single MTCs using a higher flow rate of 3000 μL min-1. Finally, we performed the rapid drug sensitivity test by coupling the microfluidic enrichment with CCK-8 assay. Our approach may serve as valuable assistance to accelerate cancer diagnosis and guide the selection of treatment medications.
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Affiliation(s)
- Zhixian Zhu
- School of Mechanical Engineering, and, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Shuang Li
- Department of Oncology, Zhongda Hospital, Southeast University, Nanjing, 210009, China.
| | - Dan Wu
- Department of Oncology, Jiangyin People's Hospital, Jiangyin, 214400, China
| | - Hui Ren
- School of Mechanical Engineering, and, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Chen Ni
- School of Mechanical Engineering, and, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Cailian Wang
- Department of Oncology, Zhongda Hospital, Southeast University, Nanjing, 210009, China.
| | - Nan Xiang
- School of Mechanical Engineering, and, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
| | - Zhonghua Ni
- School of Mechanical Engineering, and, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing, 211189, China.
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Xiao L, Lu X, Yang H, Lin C, Li L, Ni C, Fang Y, Mo S, Zhan R, Yan P. The Antioxidant and Hypolipidemic Effects of Mesona Chinensis Benth Extracts. Molecules 2022; 27:molecules27113423. [PMID: 35684361 PMCID: PMC9182326 DOI: 10.3390/molecules27113423] [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: 05/08/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 11/28/2022]
Abstract
In this study, the antioxidant and hypolipidemic effects of Mesona Chinensis Benth (MCB) extracts were evaluated. Seven fractions (F0, F10, F20, F30, F40, F50 and MTF) were obtained from the MCB ethanol extracts. Compared to the commercial antioxidants (vitamin C), MTF and F30 exhibited higher antioxidant activities in the antiradical activity test and the FRAP assay. The half-inhibition concentration (IC50) for MTF and F30 were 5.323 µg/mL and 5.278 µg/mL, respectively. MTF at 200 µg/mL significantly decreased the accumulation of TG in oleic acid (OA)-induced HepG2 cells and reversed the inhibitory effect of Compound C on AMPK (MTF and F30 significantly increased the glucose utilization of insulin-induced HepG2 cells). In addition, the components of MTF were identified by HPLC-MS, which were caffeic acid, quercetin 3-O-galactoside, isoquercetin, astragalin, rosmarinic acid, aromadendrin-3-O-rutinoside, rosmarinic acid-3-O-glucoside and kaempferol-7-O-glucoside. Through statistical correlations by Simca P software, it was found that the main antioxidant and hypolipidemic components of MCB might be caffeic acid, kaempferol-7-O-glucoside, rosmarinic acid-3-O-glucoside and aromadendrin-3-O-rutinoside, which may play important roles in the AMPK pathway. MTF and F30 in MCB could be potential health products for the treatment of hyperlipidemia.
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Affiliation(s)
- Luhua Xiao
- College of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; (L.X.); (X.L.); (H.Y.); (C.L.); (L.L.); (C.N.); (Y.F.); (S.M.)
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, Guangzhou 510006, China
- Joint Laboratory of Nation Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou 510006, China
| | - Xiaoying Lu
- College of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; (L.X.); (X.L.); (H.Y.); (C.L.); (L.L.); (C.N.); (Y.F.); (S.M.)
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, Guangzhou 510006, China
- Joint Laboratory of Nation Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou 510006, China
| | - Huilin Yang
- College of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; (L.X.); (X.L.); (H.Y.); (C.L.); (L.L.); (C.N.); (Y.F.); (S.M.)
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, Guangzhou 510006, China
- Joint Laboratory of Nation Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou 510006, China
| | - Cuiqing Lin
- College of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; (L.X.); (X.L.); (H.Y.); (C.L.); (L.L.); (C.N.); (Y.F.); (S.M.)
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, Guangzhou 510006, China
- Joint Laboratory of Nation Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou 510006, China
| | - Le Li
- College of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; (L.X.); (X.L.); (H.Y.); (C.L.); (L.L.); (C.N.); (Y.F.); (S.M.)
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, Guangzhou 510006, China
- Joint Laboratory of Nation Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou 510006, China
| | - Chen Ni
- College of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; (L.X.); (X.L.); (H.Y.); (C.L.); (L.L.); (C.N.); (Y.F.); (S.M.)
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, Guangzhou 510006, China
- Joint Laboratory of Nation Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou 510006, China
| | - Yuan Fang
- College of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; (L.X.); (X.L.); (H.Y.); (C.L.); (L.L.); (C.N.); (Y.F.); (S.M.)
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, Guangzhou 510006, China
- Joint Laboratory of Nation Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou 510006, China
| | - Suifen Mo
- College of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; (L.X.); (X.L.); (H.Y.); (C.L.); (L.L.); (C.N.); (Y.F.); (S.M.)
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, Guangzhou 510006, China
- Joint Laboratory of Nation Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou 510006, China
| | - Ruoting Zhan
- College of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; (L.X.); (X.L.); (H.Y.); (C.L.); (L.L.); (C.N.); (Y.F.); (S.M.)
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, Guangzhou 510006, China
- Joint Laboratory of Nation Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou 510006, China
- Correspondence: (R.Z.); (P.Y.); Tel.:+86-020-3935-8045 (R.Z.); +86-020-3935-8331 (P.Y.)
| | - Ping Yan
- College of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; (L.X.); (X.L.); (H.Y.); (C.L.); (L.L.); (C.N.); (Y.F.); (S.M.)
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, Guangzhou 510006, China
- Joint Laboratory of Nation Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou 510006, China
- Correspondence: (R.Z.); (P.Y.); Tel.:+86-020-3935-8045 (R.Z.); +86-020-3935-8331 (P.Y.)
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Sun Z, Gu M, Liu X, Liu B, Zhang J, Huang S, Ni C. Influence of Si wall thickness of CsI(Tl) micro-square-frustums on the performance of the structured CsI(Tl) scintillation screen in X-ray imaging. Sci Rep 2022; 12:8748. [PMID: 35610282 PMCID: PMC9130278 DOI: 10.1038/s41598-022-12673-9] [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: 02/17/2022] [Accepted: 05/13/2022] [Indexed: 11/29/2022] Open
Abstract
To improve the detection efficiency of the structured scintillation screen with CsI(Tl) micro-square-frustums based on oxidized Si micropore array template in the case of a period as small as microns, the influence of Si wall thickness of the CsI(Tl) micro-square-frustums on the performance of the structured screen in X-ray imaging was investigated. The results show that when CsI(Tl) at the bottom of the screen is structured, the detective quantum efficiency (DQE) improves at almost all spatial frequency as the top thickness of the Si wall tSi decreases. However, when CsI (Tl) at the bottom of the screen is not structured, the DQE becomes better at low-frequency and worse at high-frequency as tSi decreases. The results can provide guidance for optimizing tSi according to the comprehensive requirements of detection efficiency and spatial resolution in X-ray imaging.
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Affiliation(s)
- Zhixiang Sun
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Mu Gu
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China.
| | - Xiaolin Liu
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Bo Liu
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Juannan Zhang
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Shiming Huang
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Chen Ni
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
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Qin Z, Cao H, Ni C, Han L, Wang R, Blasig R, Haseloff R, Qin Y, Lan J, Lou X, Ma P, Yao X, Wang L, Wang F, Zhu L, Lei N, Blasig IE. Claudin-12 deficiency inhibits tumor growth by impairing transendothelial migration of myeloid-derived suppressor cells. Cancer Res 2022; 82:2472-2484. [PMID: 35580275 DOI: 10.1158/0008-5472.can-21-3896] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 02/23/2022] [Accepted: 05/13/2022] [Indexed: 11/16/2022]
Abstract
Migration of myeloid-derived suppressor cells (MDSCs) out of the circulation, across vascular walls, and into tumor is crucial for their immunosuppressive activity. A deeper understanding of critical junctional molecules and the regulatory mechanisms that mediate the extravasation of MDSCs could identify approaches to overcome cancer immunosuppression. In this study we used mice deficient in tight-junction protein Claudin-12 (Cldn12) compared to wild-type mice and found that loss of host Cldn12 inhibited the growth of transplanted tumors, reduced intratumoral accumulation of MDSCs, increased anti-tumor immune responses, and decreased tumor vescular density. Further studies revealed that Cldn12 expression on the cell surface of both MDSCs and endothelial cells is required for MDSCs transit across tumor vascular endothelial cells (ECs). Importantly, expression of Cldn12 in MDSCs was modulated by granulocyte-macrophage colony-stimulating factor (GM-CSF) in an AKT-dependent manner. Therefore, our results indicate that Cldn12 could serve as a promising target for restoring the anti-tumor response by interfering with MDSCs transendothelial migration.
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Affiliation(s)
- Zhihai Qin
- First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hong Cao
- First Affiliated Hospital of Zhengzhou University, Zhenzhou, China
| | - Chen Ni
- First Affiliated Hospital of Zhengzhou University, ZhengZhou, Henan, China
| | - Le Han
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Ruoqi Wang
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Rosel Blasig
- Leibniz Institute of Molecular Pharmacology, Berlin, Germany
| | - Reiner Haseloff
- Leibniz Institute of Molecular Pharmacology, Berlin, Germany
| | - Yue Qin
- First Affiliated Hospital of Zhengzhou University, Zhenzhou, China
| | - Jie Lan
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Xiaohan Lou
- First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Pan Ma
- First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaohan Yao
- First Affiliated Hospital of Zhengzhou University, China
| | - Linlin Wang
- First Affiliated Hospital of Zhengzhou University, Zhenzhou, Henan, China
| | - Fei Wang
- First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Linyu Zhu
- Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | | | - Ingolf E Blasig
- Leibniz Institute of Molecular Pharmacology, Berlin, Germany
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Zhang H, Liu S, Li Y, Li J, Ni C, Yang M, Dong J, Wang Z, Qin Z. Dysfunction of S100A4 + effector memory CD8 + T cells aggravates asthma. Eur J Immunol 2022; 52:978-993. [PMID: 35340022 DOI: 10.1002/eji.202149572] [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: 08/11/2021] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 11/09/2022]
Abstract
Progressive loss of effector functions, especially IFN-γ secreting capability, in effector memory CD8+ T (CD8+ TEM ) cells plays a crucial role in asthma worsening. However, the mechanisms of CD8+ TEM cell dysfunction remain elusive. Here, we report that S100A4 drives CD8+ TEM cell dysfunction, impairing their protective memory response and promoting asthma worsening in an ovalbumin (OVA)-induced asthmatic murine model. We find that CD8+ TEM cells contain two subsets based on S100A4 expression. S100A4+ subsets exhibit dysfunctional effector phenotypes with increased proliferative capability, whereas S100A4- subsets retain effector function but are more inclined to apoptosis, giving rise a dysfunctional CD8+ TEM cell pool. Mechanistically, S100A4 upregulation of mitochondrial metabolism results in a decrease of acetyl-CoA levels, which impair the transcription of effector genes, especially ifn-γ, facilitating cell survival, tolerance and memory potential. Our findings thus reveal general insights into how S100A4 CD8+ TEM cells reprogram into dysfunctional and less protective phenotypes to aggravate asthma. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Huilei Zhang
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.,Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Shuangqing Liu
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.,Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Yanan Li
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jianru Li
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Chen Ni
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Ming Yang
- Priority Research Centre for Healthy Lungs, School of Biomedical Sciences & Pharmacy, Faculty of Health and Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW 2300, Australia
| | - Jun Dong
- German Rheumatism Research Center (DRFZ), a Leibniz Institute, Berlin, 10117, Germany
| | - Zhaoqing Wang
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zhihai Qin
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.,Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
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Pan W, Chen H, Ni C, Zong G, Yuan C, Yang M. Sex-Specific Associations of Dietary Iron Intake with Brain Iron Deposition on Imaging and Incident Dementia: A Prospective Cohort Study. J Nutr Health Aging 2022; 26:954-961. [PMID: 36259584 DOI: 10.1007/s12603-022-1852-2] [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] [Indexed: 10/17/2022]
Abstract
OBJECTIVES The study aimed to evaluate the association of dietary iron intake with incident dementia and brain iron deposition. DESIGN/SETTING/PARTICIPANTS We included dementia-free participants from the UK Biobank who completed at least one 24-hour dietary recall at study baseline (2009-2012) and were followed up to 2021. Incident dementia was determined through linkage to medical records and death registries. Brain MRI was conducted in a subgroup of participants since 2014, with T2* measurements being used as indicators of brain iron deposition. MEASUREMENTS Cox proportional hazard models were used to assess the associations of high (top quintile) and low (bottom quintile) versus medium (quintile 2 to 4) level of dietary iron intake with incident dementia, respectively. Linear regression was applied to assess the relations between dietary iron intake and brain T2* measurements. RESULTS During follow-up (mean = 9.5 years), a total of 1,454 participants (650 women and 804 men) developed dementia among 191,694 participants (55.0% female; mean age, 56.2 years). When adjusted for sociodemographic, lifestyle, and other dietary factors, participants with low dietary iron intake (< 10.05 mg/day) had a significantly higher dementia risk (hazard ratio [HR], 1.50, 95% confidence interval [CI], 1.19-1.89), while the relation for high intake (> 16.92 mg/day) was non-significant (HR, 1.16, 95% CI, 0.92-1.46). A significant gender difference (P-interaction < 0.001) was observed, with a U-shaped association in male participants (HR for low vs. medium, 1.56, 95% CI, 1.14-2.13; HR for high vs. medium, 1.39, 95% CI, 1.03 - 1.88; P-nonlinearity < 0.001) and no significant association in females, regardless of their menopause status. In general, dietary iron intake was not related to T2* measurements of iron deposition in most brain regions. CONCLUSION Our findings suggested a U-shape relationship between dietary iron intake and risk of dementia among males, but not females.
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Affiliation(s)
- W Pan
- Min Yang, School of Public Health, Zhejiang University School of Medicine, 866 Yu-hang-tang RD, Hangzhou, China, Tel: 13516852440, ; Changzheng Yuan, School of Public Health, Zhejiang University School of Medicine, 866 Yu-hang-tang RD, Hangzhou, China, Tel: 17326860291, E-mail:
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Huang T, Cai W, Ni C, Lai S, Lin S, Wang Q. Changes in cytomegalovirus load in the breast milk of very/extremely premature infants and the effect of pasteurization and freeze-thawing on reducing viral load. Front Pediatr 2022; 10:900249. [PMID: 36081633 PMCID: PMC9447991 DOI: 10.3389/fped.2022.900249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 07/27/2022] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE This study aimed to clarify the change in Cytomegalovirus (CMV) loads in breast milk (BM) of very/extremely premature infants (VPI/EPI) with birth weight < 1,500 g after birth, and to compare the effectiveness of pasteurization and freeze-thawing methods in reducing the CMV load of BM. METHODS Breast milk samples were collected and tested every 2 weeks by fluorescence quantitative polymerase chain reaction (FQ-PCR). We determined CMV load in BM before and after pasteurizing, and freeze-thawing. RESULTS Cytomegalovirus DNA can already be detected in colostrum. The viral load gradually increased in the first 4 weeks, peaked in the 4th to 6th weeks, and gradually decreased thereafter. The viral load gradually returned to the initial level approximately 10-12 weeks postpartum. During the peak period of the CMV load in BM, the viral load was higher in the EPI than the VPI (P < 0.05). The average CMV load (logarithmic [LG]) in the pasteurization group was significantly lower than that in the raw BM group. The average CMV load in the freeze-thawed BM group was significantly lower than that in the raw BM group. The mean CMV load in the pasteurized BM group was lower than that in the freeze-thawed BM group, but the difference was not statistically significant. The CMV-DNA clearance rate in pasteurized was higher than in freeze-thawed (P < 0.05). CONCLUSION The CMV detoxification rate in BM is high and the peak load period is mainly between 4 and 6 weeks. The CMV load values detected are higher than the threshold values (7 × 103 copy number/mL) of CMV infection that are reported in the literature as a concern. Both the freeze-thaw and pasteurization techniques can effectively reduce the CMV load.
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Affiliation(s)
- Tingting Huang
- College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Maternity and Child Health Hospital, Fujian Medical University, Fuzhou, China.,Department of Neonatology, Fujian Provincial Maternity and Child Hospital, Fuzhou, China
| | - Wenhong Cai
- Department of Neonatology, Fujian Provincial Maternity and Child Hospital, Fuzhou, China
| | - Chen Ni
- Department of Clinical Laboratory, Fujian Provincial Maternity and Child Hospital, Fuzhou, China
| | - Shuhua Lai
- Department of Neonatology, Fujian Provincial Maternity and Child Hospital, Fuzhou, China
| | - Shuidi Lin
- Department of Neonatology, Fujian Provincial Maternity and Child Hospital, Fuzhou, China
| | - Quangui Wang
- Department of Pediatrics, Pingtan Comprehensive Experimental Area Maternal and Child Health Care Hospital, Fuzhou, China
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Lu J, Ni C, Huang J, Liu Y, Tao Y, Hu P, Wang Y, Zheng S, Shi M. Biocompatible Mesoporous Silica-Polydopamine Nanocomplexes as MR/Fluorescence Imaging Agent for Light-Activated Photothermal-Photodynamic Cancer Therapy In Vivo. Front Bioeng Biotechnol 2021; 9:752982. [PMID: 34858959 PMCID: PMC8630682 DOI: 10.3389/fbioe.2021.752982] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/13/2021] [Indexed: 11/13/2022] Open
Abstract
Conventional cancer phototherapy with single modality suffers from low therapeutic efficacy and undesired posttreatment damage for adjacent normal tissues. Therefore, the lower NIR laser irradiation power is vital to the reduction or preclusion of risk of scalds and burns in normal tissues. Herein, we rationally proposed a novel multifunctional nanocomplex, which enabled good magnetic resonance (MR) imaging contrast effect and promising photothermal conversion efficacy. The prepared core/shell nanocomplexes [MSN-Ce6@PDA (Mn)] were composed of chlorin e6-embedded mesoporous silica/nanoparticle composites as the cores, and then polydopamine and manganese ions were conjugated on the cores to form protective shells. The MSN-Ce6@PDA (Mn) nanocomplexes revealed superior properties in colloidal stability, photothermal conversion, reaction oxygen species generation, magnetic resonance imaging, etc. Under the guidance of MR and fluorescence imaging, these MSN-Ce6@PDA (Mn) nanocomplexes were found to be primarily accumulated in the MDA-MB-231 tumor area. Furthermore, the combined photodynamic and photothermal therapy exhibited strong inhibition to the growth of MDA-MB-231 tumor in vitro and in vivo. Besides, the MSN-Ce6@PDA (Mn) nanocomplexes also exhibited excellent biocompatibility and low damage to the healthy animals. Hence, the results demonstrated that the prepared MSN-Ce6@PDA (Mn) nanocomplex would be a promising potential for multimodal imaging-guided phototherapy.
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Affiliation(s)
- Jiahui Lu
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, China
- School of Medical Imaging, Hangzhou Medical College, Hangzhou, China
| | - Chen Ni
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, China
| | - Jie Huang
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, China
| | - Yawen Liu
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, China
| | - Yingkai Tao
- Department of Dermatology and Venereal Diseases, The First People’s Hospital of Changzhou, Changzhou, China
| | - Pengcheng Hu
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, China
| | - Yong Wang
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, China
| | - Shaohui Zheng
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, China
- Institute of Medical Imaging and Digital Medicine, Xuzhou Medical University, Xuzhou, China
| | - Meilin Shi
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, China
- Institute of Medical Imaging and Digital Medicine, Xuzhou Medical University, Xuzhou, China
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Sun Z, Gu M, Li Q, Liu X, Liu B, Zhang J, Huang S, Ni C. Performance of a CsI(Tl) scintillation screen with a dual-periodic structure based on an oxidized silicon micropore array template in X-ray imaging. Opt Express 2021; 29:23752-23763. [PMID: 34614634 DOI: 10.1364/oe.428145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/23/2021] [Indexed: 06/13/2023]
Abstract
To address the reduction in the detection efficiency of a structured CsI(Tl) scintillation screen when its structure period reaches the order of microns, a dual-periodic structure of the screen is proposed. The special feature of the dual structure is that each unit of the primary structure is divided equally into either four or nine square column-shaped scintillation sub-units. The sub-units are separated only by SiO2 layers to form a secondary structure. The results show that the performance of a dual-structure CsI(Tl) screen in X-ray imaging is much better than that of a corresponding single-structure screen.
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39
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Jiang D, Ni C, Tang W, Huang D, Xiang N. Inertial microfluidics in contraction-expansion microchannels: A review. Biomicrofluidics 2021; 15:041501. [PMID: 34262632 PMCID: PMC8254650 DOI: 10.1063/5.0058732] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 06/19/2021] [Indexed: 05/02/2023]
Abstract
Inertial microfluidics has brought enormous changes in the conventional cell/particle detection process and now become the main trend of sample pretreatment with outstanding throughput, low cost, and simple control method. However, inertial microfluidics in a straight microchannel is not enough to provide high efficiency and satisfying performance for cell/particle separation. A contraction-expansion microchannel is a widely used and multifunctional channel pattern involving inertial microfluidics, secondary flow, and the vortex in the chamber. The strengthened inertial microfluidics can help us to focus particles with a shorter channel length and less processing time. Both the vortex in the chamber and the secondary flow in the main channel can trap the target particles or separate particles based on their sizes more precisely. The contraction-expansion microchannels are also capable of combining with a curved, spiral, or serpentine channel to further improve the separation performance. Some recent studies have focused on the viscoelastic fluid that utilizes both elastic forces and inertial forces to separate different size particles precisely with a relatively low flow rate for the vulnerable cells. This article comprehensively reviews various contraction-expansion microchannels with Newtonian and viscoelastic fluids for particle focusing, separation, and microfluid mixing and provides particle manipulation performance data analysis for the contraction-expansion microchannel design.
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Affiliation(s)
- Di Jiang
- Author to whom correspondence should be addressed:
| | - Chen Ni
- College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China
| | | | - Di Huang
- School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Nan Xiang
- School of Mechanical Engineering, and Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing 211189, China
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Qian XL, Zhou F, Xu S, Jiang J, Chen ZP, Wang SK, Zuo Y, Ni C. MiR-454-3p Promotes Oxaliplatin Resistance by Targeting PTEN in Colorectal Cancer. Front Oncol 2021; 11:638537. [PMID: 34017681 PMCID: PMC8129568 DOI: 10.3389/fonc.2021.638537] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/15/2021] [Indexed: 12/27/2022] Open
Abstract
Colorectal cancer is one of the most common malignancies worldwide. Oxaliplatin is the first-line chemotherapeutic agent for the treatment of advanced colorectal cancer. However, acquired resistance to oxaliplatin limits its therapeutic efficacy, and the underlying mechanism remains largely unclear. In this study, we compared the expression of a panel of microRNAs (miRNAs) between oxaliplatin-sensitive and -resistant HCT-116 colorectal cancer cells. We found that miR-454-3p was significantly up-regulated in oxaliplatin-resistant cells and was the most differently expressed miRNA. Interestingly, we observed that inhibition of miR-454-3p resensitized resistant cells to oxaliplatin and enhanced oxaliplatin-induced cellular apoptosis. Moreover, we determined that miR-454-3p promoted oxaliplatin resistance through targeting PTEN and activating the AKT signaling pathway. In vivo study revealed that overexpression of miR-454-3p decreased the sensitivity of HCT-116 xenograft tumors to oxaliplatin treatment in a mouse model. Clinically, overexpression of miR-454-3p was associated with decreased responsiveness to oxaliplatin-based chemotherapy, as well as a short progression-free survival. Taken together, our study indicated that the expression of miR-454-3p could be used to predict oxaliplatin sensitivity, and targeting miR-454-3p could overcome oxaliplatin resistance in colorectal cancer.
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Affiliation(s)
- Xiao-Lan Qian
- Department of Oncology, Zhangjiagang First People's Hospital, The Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, China
| | - Fang Zhou
- Department of Oncology, Zhangjiagang First People's Hospital, The Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, China
| | - Song Xu
- Department of Oncology, Zhangjiagang First People's Hospital, The Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, China
| | - Jian Jiang
- Department of Oncology, Zhangjiagang First People's Hospital, The Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, China
| | - Zhi-Peng Chen
- Department of Oncology, Zhangjiagang First People's Hospital, The Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, China
| | - Shao-Kai Wang
- Department of Oncology, Zhangjiagang First People's Hospital, The Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, China
| | - Yun Zuo
- Department of Oncology, Zhangjiagang First People's Hospital, The Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, China
| | - Chen Ni
- Department of Oncology, Zhangjiagang First People's Hospital, The Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, China
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Wang Y, Liu J, Huang Z, Li Y, Liang Y, Luo C, Ni C, Xie J, Su Z, Chen J, Li C. Coptisine ameliorates DSS-induced ulcerative colitis via improving intestinal barrier dysfunction and suppressing inflammatory response. Eur J Pharmacol 2021; 896:173912. [PMID: 33508280 DOI: 10.1016/j.ejphar.2021.173912] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [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: 08/31/2020] [Revised: 01/15/2021] [Accepted: 01/21/2021] [Indexed: 12/14/2022]
Abstract
Ulcerative colitis (UC), as an autoimmune disease, has been troubling human health for many years. Up to now, the available treatments remain unsatisfactory. Rhizoma Coptidis has been widely applied to treat gastrointestinal diseases in China for a long time, and coptisine (COP) is identified as one of its major active components. This study aimed to evaluate the bioactivity of COP on dextran sulfate sodium (DSS)-induced mice colitis and clarify the potential mechanism of action. The results revealed that COP treatment markedly alleviated DSS-induced clinical symptoms by relieving body weight loss and the disease activity index (DAI) score. Specifically, the colon length in the COP (50 and 100 mg/kg) groups were obviously longer than that in the DSS group (7.21 ± 0.34, 8.59 ± 0.45 cm vs. 6.71 ± 0.59 cm, P < 0.01). HE staining analysis revealed that COP treatment significantly protected the integrity of intestinal barrier and alleviated inflammatory cells infiltration. Western blot assay confirmed that COP notably improved the intestinal epithelial barrier function by enhancing the expressions of colonic tight junction proteins and inhibited the expressions of apoptosis-related proteins. In addition, COP treatment remarkably suppressed the levels of colonic myeloperoxidase (MPO), adhesion molecules and pro-inflammatory cytokines (TNF-α, IFN-γ, IL-1β, IL-6 and IL-17), while enhanced IL-10 and TGF-β. The mechanism anti-inflammatory of COP might be related to inhibiting the phosphorylation of IκBα, and the translocation of NF-κB p65 from cytoplasm to nucleus. In summary, the study indicated that COP ameliorated DSS-induced colitis, at least partly through maintaining the integrity of intestinal epithelial barrier, inhibiting apoptosis and inflammatory response.
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Affiliation(s)
- Yongfu Wang
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China; First School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510405, PR China
| | - Jingjing Liu
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Ziwei Huang
- First School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510405, PR China
| | - Yucui Li
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Yuanyuan Liang
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Chaodan Luo
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China; Guangxi Institute of Subtropical Agricultural Products Processing, Guangxi Subtropical Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530001, PR China
| | - Chen Ni
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Jianhui Xie
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, 510120, PR China
| | - Ziren Su
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - Jiannan Chen
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China.
| | - Cailan Li
- Department of Pharmacology, Zunyi Medical University, Zhuhai Campus, Zhuhai, 519041, PR China.
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Lu J, Cai L, Dai Y, Liu Y, Zuo F, Ni C, Shi M, Li J. Polydopamine-Based Nanoparticles for Photothermal Therapy/Chemotherapy and their Synergistic Therapy with Autophagy Inhibitor to Promote Antitumor Treatment. CHEM REC 2021; 21:781-796. [PMID: 33634962 DOI: 10.1002/tcr.202000170] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/20/2021] [Accepted: 01/20/2021] [Indexed: 12/12/2022]
Abstract
Polydopamine (PDA) has attracted much attention recently due to its strong adhesion capability to most substrates. After combining with organic (such as organic metal framework, micelles, hydrogel, polypeptide copolymer) or inorganic nanomaterials (such as gold, silicon, carbon), polydopamine-based nanoparticles (PDA NPs) exhibit the merging of characteristics. Until now, the preparation methods, polymerization mechanism, and photothermal therapy (PTT) or chemotherapy (CT) applications of PDA NPs have been reported detailly. Since the PTT or CT treatment process is often accompanied by exogenous stimuli, tumor cells usually induce pro-survival autophagy to protect the cells from further damage, which will weaken the therapeutic effect. Therefore, an in-depth understanding of PDA NPs modulated PTT, CT, and autophagy is required. However, this association is rarely reviewed. Herein, we briefly described the relationship between PTT/CT, autophagy, and tumor treatment. Then, the outstanding performances of PDA NPs in PTT/CT and their combination with autophagy inhibitors for tumor synergistic therapy have been summarized. This work is expected to shed light on the multi-strategy antitumor therapy applications of PDA NPs.
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Affiliation(s)
- Jiahui Lu
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China.,Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, Jiangsu Province, China
| | - Lulu Cai
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China.,Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, Jiangsu Province, China
| | - Yue Dai
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China.,Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, Jiangsu Province, China
| | - Yawen Liu
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Fengmei Zuo
- Jiangsu Vocational College of Medicine, Yancheng, 224000, Jiangsu Province, China
| | - Chen Ni
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Meilin Shi
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Jingjing Li
- School of Medical Imaging, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China.,Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, Jiangsu Province, China
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43
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Ni C, Jiang D. Three-Dimensional Numerical Simulation of Particle Focusing and Separation in Viscoelastic Fluids. Micromachines (Basel) 2020; 11:E908. [PMID: 33007973 PMCID: PMC7599618 DOI: 10.3390/mi11100908] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 01/14/2023]
Abstract
Particle focusing and separation using viscoelastic microfluidic technology have attracted lots of attention in many applications. In this paper, a three-dimensional lattice Boltzmann method (LBM) coupled with the immersed boundary method (IBM) is employed to study the focusing and separation of particles in viscoelastic fluid. In this method, the viscoelastic fluid is simulated by the LBM with two sets of distribution functions and the fluid-particle interaction is calculated by the IBM. The performance of particle focusing under different microchannel aspect ratios (AR) is explored and the focusing equilibrium positions of the particles with various elasticity numbers and particle diameters are compared to illustrate the mechanism of particle focusing and separation in viscoelastic fluids. The results indicate that, for particle focusing in the square channel (AR = 1), the centerline single focusing becomes a bistable focusing at the centerline and corners as El increases. In the rectangular channels (AR < 1), particles with different diameters have different equilibrium positions. The equilibrium position of large particles is closer to the wall, and large particles have a faster lateral migration speed and few large particles migrate towards the channel center. Compared with the square channel, the rectangular channel is a better design for particle separation.
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Affiliation(s)
| | - Di Jiang
- School of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China;
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44
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45
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Ma P, Qin Y, Cao H, Erben U, Ni C, Qin Z. Temporary blockade of interferon-γ ameliorates doxorubicin-induced cardiotoxicity without influencing the anti-tumor effect. Biomed Pharmacother 2020; 130:110587. [PMID: 32763819 DOI: 10.1016/j.biopha.2020.110587] [Citation(s) in RCA: 6] [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] [Received: 04/07/2020] [Revised: 07/26/2020] [Accepted: 07/28/2020] [Indexed: 11/25/2022] Open
Abstract
Doxorubicin (DOX) is commonly used as an anti-cancer agent. However, its severe cardiotoxicity often makes it life threatening even long after DOX therapy during childhood. We recently reported interferon-γ (IFN-γ) necessary for DOX-induced acute cardiotoxicity in a p38 dependent way and, asked here for the potential of IFN-γ blockade to prevent DOX-induced chronic cardiotoxicity during tumor therapy. In our model system, mice without or with growing tumors repeatedly received DOX treatment. Simultaneous injection of anti-IFN-γ antibody R46-A2 with DOX to block IFN-γ signal efficiently protected the cardiac function of DOX treated recipients. Importantly, a single late injection of R46-A2 after DOX exposure also ameliorated DOX induced cardiac dysfunction in tumor-bearing mice. The anti-IFN-γ treatment did not affect the DOX-mediated tumor suppression effect and it left the main cellular immune response intact. Therefore, temporary blockade of IFN-γ may represent a novel strategy to ameliorate established DOX induced cardiotoxicity (DIC) or prevent its development in tumor therapy.
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Affiliation(s)
- Pan Ma
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yue Qin
- National Center for Nanoscience and Technology of China, Beijing, 100190, China
| | - Hong Cao
- Key Laboratory of Protein and Peptide Pharmaceuticals, CAS-University of Tokyo Joint Laboratory of Structural Virology and Immunology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Ulrike Erben
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China; Key Laboratory of Protein and Peptide Pharmaceuticals, CAS-University of Tokyo Joint Laboratory of Structural Virology and Immunology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Chen Ni
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China.
| | - Zhihai Qin
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China; Key Laboratory of Protein and Peptide Pharmaceuticals, CAS-University of Tokyo Joint Laboratory of Structural Virology and Immunology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
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Jiang J, Chen ZP, Zhu HP, Zhang YQ, Qian XL, Zhang M, Ni C, Zuo Y. Responses of metastatic primary fallopian tube carcinoma to pembrolizumab and nab-paclitaxel: A case report. Medicine (Baltimore) 2020; 99:e21203. [PMID: 32664168 PMCID: PMC7360280 DOI: 10.1097/md.0000000000021203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
RATIONALE Primary fallopian tube carcinoma (PFTC) is an extremely rare but invasive malignancy with a dismal prognosis. Very few data exist on the salvage treatment for patients with PFTC. Here we report a case showing an impressive response to immunotherapy combined with chemotherapy, which have never been reported before on patients with metastatic PFTC. PATIENT CONCERNS A 42-year-old woman, who was diagnosed with PFTC in 2010, had been failed of multiple systemic therapies and antiangiogenic therapy because of the disease recurrence and progression. DIAGNOSIS Metastatic primary fallopian tube carcinoma. INTERVENTIONS The patient underwent surgery in May 2010 and had multi-line chemotherapies plus an anti-vascular endothelial growth factor (anti-VEGF) monoclonal antibody for about 9 years. Due to treatment failure the patient accepted the immunotherapy with the checkpoint inhibitor, pembrolizumab, combined with nab-paclitaxel from December 2018 to April 2019. OUTCOMES The patient showed a complete response after 6 cycles treatment. Thus far, the patient is taking pembrolizumab as maintenance and remains in good health. LESSONS Pembrolizumab combined with chemotherapy for treatment of PFTC may provide a positive antitumor effect in multiple metastatic lesions, but more clinical evidence is needed to confirm the efficacy and safety.
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Lu HY, Shen A, Li YQ, Hu YC, Ni C, Cao YC. N-heterocyclic carbene-palladium-imine complex catalyzed α-arylation of ketones with aryl and heteroaryl chlorides under air atmosphere. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152124] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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48
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Wang Y, Liu H, Bian Y, An J, Duan X, Wan J, Yao X, Du C, Ni C, Zhu L, Lei N, Wang F, Zhang L, Wang M, Qin Z. Low SCRIB expression in fibroblasts promotes invasion of lung cancer cells. Life Sci 2020; 256:117955. [PMID: 32534038 DOI: 10.1016/j.lfs.2020.117955] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 06/08/2020] [Accepted: 06/08/2020] [Indexed: 12/11/2022]
Abstract
AIMS Cancer associated fibroblasts (CAFs) play a crucial role in lung tumor development, but the underlying mechanism is still not fully understood. MAIN METHODS SCRIB expression in the CAFs of human lung cancer tissues was examined by immunohistochemistry (IHC). A coculture of mouse Lewis lung cancer cells (LLC) and fibroblasts was used to investigate SCRIB expression in cocultured fibroblasts. Proliferation, scratch wound, and transwell assays were used to examine the proliferation, migration and invasion ability of SCRIB knockdown fibroblasts and their effects on LLC. A 3D-coculture system and co-injection xenograft model were used to examine LLC invasion. RNA sequencing and transwell experiments were used to explore the molecules that may participate in LLC invasion. KEY FINDINGS Herein, we found that the low expression of SCRIB in CAFs is correlated with advanced tumor stages and poor survival for human lung squamous cell carcinoma. SCRIB expression in fibroblasts is drastically downregulated by LLC cells. SCRIB knockdown fibroblasts not only enhance invasion but also facilitate LLC invasion in a 3D-coculture system and in an in vivo subcutaneous transplantation model. The upregulation of asporin in SCRIB knockdown fibroblasts is involved in LLC invasion in vitro. SIGNIFICANCE Collectively, the results indicate that fibroblasts with low SCRIB expression promote lung cancer cell invasion, which suggests that the downregulated expression of SCRIB may represent one of the important characteristics of tumor-promoting CAFs in lung squamous cell cancer.
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Affiliation(s)
- Yuan Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Haiyang Liu
- Key Laboratory of Protein and Peptide Pharmaceuticals, CAS-University of Tokyo Joint Laboratory of Structural Virology and Immunology, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Yangyang Bian
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Junfeng An
- President of Yun kang Medical Research Institute, Guangzhou, Guangdong 510000, China; School of Yun kang Medical and Health Management, Nan fang College of SUN Yat-Sen University, Guangzhou city, Guangdong 510970, China
| | - Xixi Duan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Jiajia Wan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Xiaohan Yao
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Cancan Du
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Chen Ni
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Linyu Zhu
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Ningjing Lei
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Fei Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Lijing Zhang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Ming Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China.
| | - Zhihai Qin
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China; Key Laboratory of Protein and Peptide Pharmaceuticals, CAS-University of Tokyo Joint Laboratory of Structural Virology and Immunology, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; School of Basic Medical Sciences, The Academy of Medical Sciences of Zhengzhou University, Zhengzhou, Henan 450052, China.
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49
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Du C, Duan X, Yao X, Wan J, Cheng Y, Wang Y, Yan Y, Zhang L, Zhu L, Ni C, Wang M, Qin Z. Tumour-derived exosomal miR-3473b promotes lung tumour cell intrapulmonary colonization by activating the nuclear factor-κB of local fibroblasts. J Cell Mol Med 2020; 24:7802-7813. [PMID: 32449597 PMCID: PMC7348150 DOI: 10.1111/jcmm.15411] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/29/2020] [Accepted: 05/03/2020] [Indexed: 02/06/2023] Open
Abstract
Tumour‐derived exosomes have been shown to induce pre‐metastatic niche formation, favoring metastatic colonization of tumour cells, but the underlying molecular mechanism is still not fully understood. In this study, we showed that exosomes derived from the LLC cells could indeed significantly enhance their intrapulmonary colonization. Circulating LLC‐derived exosomes were mainly engulfed by lung fibroblasts and led to the NF‐κB signalling activation. Further studies indicated that the exosomal miR‐3473b was responsible for that by hindering the NFKB inhibitor delta's (NFKBID) function. Blocking miR‐3473b could reverse the exosome‐mediated NF‐κB activation of fibroblasts and decrease intrapulmonary colonization of lung tumour cells. Together, this study demonstrated that the miR‐3473b in exosomes could mediate the interaction of lung tumour cells and local fibroblasts in metastatic sites and, therefore, enhance the metastasis of lung tumour cells.
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Affiliation(s)
- Cancan Du
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,School of Basic Medical Sciences, The Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China
| | - Xixi Duan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaohan Yao
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiajia Wan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanru Cheng
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuan Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yan Yan
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lijing Zhang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Linyu Zhu
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chen Ni
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ming Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhihai Qin
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,School of Basic Medical Sciences, The Academy of Medical Sciences of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, CAS-University of Tokyo Joint Laboratory of Structural Virology and Immunology, University of the Chinese Academy of Sciences, Beijing, China
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50
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Li Y, Wang J, Song K, Liu S, Zhang H, Wang F, Ni C, Zhai W, Liang J, Qin Z, Zhang J. S100A4 promotes hepatocellular carcinogenesis by intensifying fibrosis-associated cancer cell stemness. Oncoimmunology 2020; 9:1725355. [PMID: 32117590 PMCID: PMC7028350 DOI: 10.1080/2162402x.2020.1725355] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 11/03/2019] [Accepted: 11/25/2019] [Indexed: 02/07/2023] Open
Abstract
A cancer-promoting role of fibrogenesis in the liver has long been speculated; however, the molecular mechanisms regarding this phenomenon are largely unknown. We demonstrated in our previous study that macrophage-derived S100A4 promotes liver fibrosis via activation of hepatic stellate cells; however, whether and how S100A4 directly contributes to the development of fibrosis-associated liver cancer remains elusive. High expression of S100A4 in the fibrotic region was observed in human liver tumor tissues which associated with advanced disease severity. Through an established hepatocarcinogenesis model involving apparent liver fibrogenesis, we found that S100A4-deficient mice developed significantly less and smaller liver tumor nodules, with no change in the liver inflammation but decreased liver fibrosis and expression of stem cell markers in hepatocellular carcinoma (HCC) tissues. Mechanistically, S100A4 directly promoted stem cell-associated genes signatures in a way synergistic with its interacting protein, extracellular matrix component collagen I. This process is dependent on the receptor of advanced glycation end products (RAGE) and β-catenin signaling. Furthermore, the liver tumor sphere formation in vitro and tumor growth in vivo were greatly enhanced only when the cancer cells were pretreated with both S100A4 and collagen I. Our work firstly demonstrated a key role of S100A4 in synergy with extracellular matrix in the promotion of hepatocellular carcinoma by affecting the stemness of cancer cells.
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Affiliation(s)
- Yanan Li
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.,Key Laboratory of Protein and Peptide Pharmaceuticals, CAS Center for Excellence in Biomacromolecules, Chinese Academy of Sciences-University of Tokyo Joint Laboratory of Structural Virology and Immunology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Jun Wang
- Department of Immunobiology and Yale Cancer Center, Yale University School of Medicine, New Haven, CT, USA
| | - Kun Song
- Key Laboratory of Protein and Peptide Pharmaceuticals, CAS Center for Excellence in Biomacromolecules, Chinese Academy of Sciences-University of Tokyo Joint Laboratory of Structural Virology and Immunology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Shuangqing Liu
- Key Laboratory of Protein and Peptide Pharmaceuticals, CAS Center for Excellence in Biomacromolecules, Chinese Academy of Sciences-University of Tokyo Joint Laboratory of Structural Virology and Immunology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Huilei Zhang
- Key Laboratory of Protein and Peptide Pharmaceuticals, CAS Center for Excellence in Biomacromolecules, Chinese Academy of Sciences-University of Tokyo Joint Laboratory of Structural Virology and Immunology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Fei Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Chen Ni
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wenlong Zhai
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jialu Liang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhihai Qin
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.,Key Laboratory of Protein and Peptide Pharmaceuticals, CAS Center for Excellence in Biomacromolecules, Chinese Academy of Sciences-University of Tokyo Joint Laboratory of Structural Virology and Immunology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Jinhua Zhang
- College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing, China
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