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Chen CQ, Huang MY, Pan M, Chen QQ, Wei FF, Huang H. Thymic carcinoid with multiple bone metastases: A case report. World J Clin Cases 2024; 12:2275-2280. [DOI: 10.12998/wjcc.v12.i13.2275] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 02/09/2024] [Accepted: 03/28/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Thymic carcinoid (TC) is a rare entity among anterior mediastinal malignancies. TCs are neuroendocrine carcinomas that constitute approximately 2%–5% of all thymic epithelial tumors.
CASE SUMMARY The study reported a rare TC with multiple bone metastases. A 77-year-old man presented with a 2-month history of lower back pain and weight loss of 5 kg. Magnetic resonance imaging scans revealed damage to the lumbar spine, sacrocaudal vertebrae and iliac crest, suggesting bone metastasis; computed tomography (CT) scan of the thorax showed a calcified anterior mediastinal mass; positron emission tomography-CT demonstrated multiple abnormal bone signals; and laboratory work-up showed no endocrine abnormalities. Fine-needle aspiration biopsy revealed predominantly single small, round to oval cells with scant cytoplasm and some loose clusters, suggesting endocrine manifestations. The pathological diagnosis was atypical carcinoid, which tend to originate from the thymus and was classified as intermediate-highly invasive. The patient underwent anlotinib-targeted therapy. Anlotinib (12 mg) was administered daily for 2 wk, after which the patient was allowed to rest for 21 d. Follow-up CT after one year demonstrated that the tumor had shrunk by approximately 29% after therapy. Treatment has a long stable disease benefit of more than 2.5 years.
CONCLUSION These findings demonstrated that anlotinib is a promising treatment regimen for patients with TC and multiple bone metastases.
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Affiliation(s)
- Chun-Qiao Chen
- Department of Oncology, People’s Hospital of Guilin, Guilin 541000, Guangxi Zhuang Autonomous Region, China
| | - Ming-Yue Huang
- Department of Oncology, People’s Hospital of Guilin, Guilin 541000, Guangxi Zhuang Autonomous Region, China
| | - Min Pan
- Department of Oncology, People’s Hospital of Guilin, Guilin 541000, Guangxi Zhuang Autonomous Region, China
| | - Qiu-Qiu Chen
- Department of Oncology, People’s Hospital of Guilin, Guilin 541000, Guangxi Zhuang Autonomous Region, China
| | - Fei-Fei Wei
- Department of Oncology, People’s Hospital of Guilin, Guilin 541000, Guangxi Zhuang Autonomous Region, China
| | - Hui Huang
- Department of Oncology, People’s Hospital of Guilin, Guilin 541000, Guangxi Zhuang Autonomous Region, China
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Miao M, Pan M, Chen X, Shen J, Zhang L, Feng X, Chen M, Cui G, Zong H, Zhang W, Chang S, Xu F, Wang Z, Li D, Liu W, Ding Z, Zhang S, Chen B, Zha X, Fan X. IL-13 facilitates ferroptotic death in asthmatic epithelial cells via SOCS1-mediated ubiquitinated degradation of SLC7A11. Redox Biol 2024; 71:103100. [PMID: 38484644 PMCID: PMC10950698 DOI: 10.1016/j.redox.2024.103100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 02/19/2024] [Indexed: 03/24/2024] Open
Abstract
Th2-high asthma is characterized by elevated levels of type 2 cytokines, such as interleukin 13 (IL-13), and its prevalence has been increasing worldwide. Ferroptosis, a recently discovered type of programmed cell death, is involved in the pathological process of Th2-high asthma; however, the underlying mechanisms remain incompletely understood. In this study, we demonstrated that the serum level of malondialdehyde (MDA), an index of lipid peroxidation, positively correlated with IL-13 level and negatively correlated with the predicted forced expiratory volume in 1 s (FEV1%) in asthmatics. Furthermore, we showed that IL-13 facilitates ferroptosis by upregulating of suppressor of cytokine signaling 1 (SOCS1) through analyzing immortalized airway epithelial cells, human airway organoids, and the ovalbumin (OVA)-challenged asthma model. We identified that signal transducer and activator of transcription 6 (STAT6) promotes the transcription of SOCS1 upon IL-13 stimulation. Moreover, SOCS1, an E3 ubiquitin ligase, was found to bind to solute carrier family 7 member 11 (SLC7A11) and catalyze its ubiquitinated degradation, thereby promoting ferroptosis in airway epithelial cells. Last, we found that inhibiting SOCS1 can decrease ferroptosis in airway epithelial cells and alleviate airway hyperresponsiveness (AHR) in OVA-challenged wide-type mice, while SOCS1 overexpression exacerbated the above in OVA-challenged IL-13-knockout mice. Our findings reveal that the IL-13/STAT6/SOCS1/SLC7A11 pathway is a novel molecular mechanism for ferroptosis in Th2-high asthma, confirming that targeting ferroptosis in airway epithelial cells is a potential therapeutic strategy for Th2-high asthma.
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Affiliation(s)
- Manli Miao
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China; Anhui Geriatric Institute, Hefei, China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Jining Medical University, Jining, China
| | - Min Pan
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China; Anhui Geriatric Institute, Hefei, China
| | - Xu Chen
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China; Anhui Geriatric Institute, Hefei, China
| | - Jiapan Shen
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China; Anhui Geriatric Institute, Hefei, China
| | - Ling Zhang
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China; Anhui Geriatric Institute, Hefei, China
| | - Xiaoxia Feng
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China; Anhui Geriatric Institute, Hefei, China
| | - Mengting Chen
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China; Anhui Geriatric Institute, Hefei, China
| | - Guofeng Cui
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China; Anhui Geriatric Institute, Hefei, China
| | - Huaiyuan Zong
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China
| | - Wen Zhang
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Shuang Chang
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China; Anhui Geriatric Institute, Hefei, China
| | - Fangzhou Xu
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Anhui Geriatric Institute, Hefei, China
| | - Zixi Wang
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China
| | - Dapeng Li
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China; Department of Otolaryngology, Head and Neck Surgery, The Affiliated Bozhou Hospital of Anhui Medical University, Bozhou, China
| | - Weiwei Liu
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China
| | - Zhao Ding
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China
| | - Shengquan Zhang
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China
| | - Biao Chen
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China.
| | - Xiaojun Zha
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, China.
| | - Xiaoyun Fan
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Anhui Geriatric Institute, Hefei, China; Key Laboratory of Respiratory Diseases Research and Medical Transformation of Anhui Province, Hefei, China.
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Shen Y, Pan M, Gao H, Zhang Y, Wang R, Li J, Mao Z. New azole derivatives linked to indole/indoline moieties combined with FLC against drug-resistant Candida albicans. RSC Med Chem 2024; 15:1236-1246. [PMID: 38665837 PMCID: PMC11042159 DOI: 10.1039/d4md00021h] [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: 01/10/2024] [Accepted: 02/26/2024] [Indexed: 04/28/2024] Open
Abstract
Candida albicans is the most common fungal pathogen associated with human opportunistic infections. Invasive infections caused by C. albicans are becoming increasingly serious. However, with the rising incidence of fungal infection, many fungi are resistant to commonly used drugs. Therefore, there is an urgent need for exploring new anti-fungal drugs that fungi are not resistant to. A series of novel azole derivatives linked to indole/indoline moieties were prepared, and in vitro antifungal activity evaluated. All compounds combined with FLC showed excellent activity against drug-resistant C. albicans with low toxicity. A preliminary mechanistic study indicated that S1 combined with FLC could inhibit the formation of C. albicans biofilms as well as destroy the integrity of cell-membrane structure and mitochondrial function. S1 could be considered a new fungal agent for further study.
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Affiliation(s)
- Yunhong Shen
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Min Pan
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Hui Gao
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Yi Zhang
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Ruirui Wang
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Jun Li
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Zewei Mao
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
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Fu F, Yang X, Li R, Li Y, Zhou H, Cheng K, Huang R, Wang Y, Guo F, Zhang L, Pan M, Han J, Zhen L, Li L, Lei T, Li D, Liao C. Single-cell RNA sequencing reveals cellular and molecular landscape of fetal cystic hygroma. BMC Med Genomics 2024; 17:96. [PMID: 38650036 PMCID: PMC11036587 DOI: 10.1186/s12920-024-01859-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 03/29/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND The molecular mechanism of fetal cystic hygroma (CH) is still unclear, and no study has previously reported the transcriptome changes of single cells in CH. In this study, single-cell transcriptome sequencing (scRNA-seq) was used to investigate the characteristics of cell subsets in the lesion tissues of CH patients. METHODS Lymphoid tissue collected from CH patients and control donors for scRNA-seq analysis. Differentially expressed gene enrichment in major cell subpopulations as well as cell-cell communication were analyzed. At the same time, the expression and interactions of important VEGF signaling pathway molecules were analyzed, and potential transcription factors that could bind to KDR (VEGFR2) were predicted. RESULTS The results of scRNA-seq showed that fibroblasts accounted for the largest proportion in the lymphatic lesions of CH patients. There was a significant increase in the proportion of lymphatic endothelial cell subsets between the cases and controls. The VEGF signaling pathway is enriched in lymphatic endothelial cells and participates in the regulation of cell-cell communication between lymphatic endothelial cells and other cells. The key regulatory gene KDR in the VEGF signaling pathway is highly expressed in CH patients and interacts with other differentially expressed EDN1, TAGLN, and CLDN5 Finally, we found that STAT1 could bind to the KDR promoter region, which may play an important role in promoting KDR up-regulation. CONCLUSION Our comprehensive delineation of the cellular composition in tumor tissues of CH patients using single-cell RNA-sequencing identified the enrichment of lymphatic endothelial cells in CH and highlighted the activation of the VEGF signaling pathway in lymphoid endothelial cells as a potential modulator. The molecular and cellular pathogenesis of fetal cystic hygroma (CH) remains largely unknown. This study examined the distribution and gene expression signature of each cell subpopulation and the possible role of VEGF signaling in lymphatic endothelial cells in regulating the progression of CH by single-cell transcriptome sequencing. The enrichment of lymphatic endothelial cells in CH and the activation of the VEGF signaling pathway in lymphatic endothelial cells provide some clues to the pathogenesis of CH from the perspective of cell subpopulations.
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Affiliation(s)
- Fang Fu
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Xin Yang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Ru Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Yingsi Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Hang Zhou
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Ken Cheng
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Ruibin Huang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - You Wang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Fei Guo
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Lina Zhang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Min Pan
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Jin Han
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Li Zhen
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Lushan Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Tingying Lei
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Dongzhi Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China
| | - Can Liao
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 510623, Guangzhou, China.
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Zhou Y, Qi T, Pan M, Tu J, Zhao X, Ge Q, Lu Z. Deep-Cloud: A Deep Neural Network-Based Approach for Analyzing Differentially Expressed Genes of RNA-seq Data. J Chem Inf Model 2024; 64:2302-2310. [PMID: 37682833 DOI: 10.1021/acs.jcim.3c00766] [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] [Indexed: 09/10/2023]
Abstract
Presently, the field of analyzing differentially expressed genes (DEGs) of RNA-seq data is still in its infancy, with new approaches constantly being proposed. Taking advantage of deep neural networks to explore gene expression information on RNA-seq data can provide a novel possibility in the biomedical field. In this study, a novel approach based on a deep learning algorithm and cloud model was developed, named Deep-Cloud. Its main advantage is not only using a convolutional neural network and long short-term memory to extract original data features and estimate gene expression of RNA-seq data but also combining the statistical method of the cloud model to quantify the uncertainty and carry out in-depth analysis of the DEGs between the disease groups and the control groups. Compared with traditional analysis software of DEGs, the Deep-cloud model further improves the sensitivity and accuracy of obtaining DEGs from RNA-seq data. Overall, the proposed new approach Deep-cloud paves a new pathway for mining RNA-seq data in the biomedical field.
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Affiliation(s)
- Ying Zhou
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China
| | - Ting Qi
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China
| | - Min Pan
- School of Medicine, Southeast University, Nanjing 210097, China
| | - Jing Tu
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China
| | - Xiangwei Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China
| | - Qinyu Ge
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China
| | - Zuhong Lu
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China
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Turkarslan S, He Y, Hothi P, Murie C, Nicolas A, Kannan K, Park JH, Pan M, Awawda A, Cole ZD, Shapiro MA, Stuhlmiller TJ, Lee H, Patel AP, Cobbs C, Baliga NS. An atlas of causal and mechanistic drivers of interpatient heterogeneity in glioma. medRxiv 2024:2024.04.05.24305380. [PMID: 38633778 PMCID: PMC11023657 DOI: 10.1101/2024.04.05.24305380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Grade IV glioma, formerly known as glioblastoma multiforme (GBM) is the most aggressive and lethal type of brain tumor, and its treatment remains challenging in part due to extensive interpatient heterogeneity in disease driving mechanisms and lack of prognostic and predictive biomarkers. Using mechanistic inference of node-edge relationship (MINER), we have analyzed multiomics profiles from 516 patients and constructed an atlas of causal and mechanistic drivers of interpatient heterogeneity in GBM (gbmMINER). The atlas has delineated how 30 driver mutations act in a combinatorial scheme to causally influence a network of regulators (306 transcription factors and 73 miRNAs) of 179 transcriptional "programs", influencing disease progression in patients across 23 disease states. Through extensive testing on independent patient cohorts, we share evidence that a machine learning model trained on activity profiles of programs within gbmMINER significantly augments risk stratification, identifying patients who are super-responders to standard of care and those that would benefit from 2 nd line treatments. In addition to providing mechanistic hypotheses regarding disease prognosis, the activity of programs containing targets of 2 nd line treatments accurately predicted efficacy of 28 drugs in killing glioma stem-like cells from 43 patients. Our findings demonstrate that interpatient heterogeneity manifests from differential activities of transcriptional programs, providing actionable strategies for mechanistically characterizing GBM from a systems perspective and developing better prognostic and predictive biomarkers for personalized medicine.
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Cao Y, Lv J, Tan Y, Chen R, Jiang X, Meng D, Zou K, Pan M, Tang L. Tribuloside acts on the PDE/cAMP/PKA pathway to enhance melanogenesis, melanocyte dendricity and melanosome transport. J Ethnopharmacol 2024; 323:117673. [PMID: 38158096 DOI: 10.1016/j.jep.2023.117673] [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: 10/20/2023] [Revised: 12/14/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tribuloside, a natural flavonoid extracted from Chinese medicine Tribulus terrestris L., has shown potent efficacy in treating various diseases. In China, the fruits of Tribulus terrestris L. have long been utilized for relieving headache, dizziness, itchiness, and vitiligo. Water-based extract derived from Tribulus terrestris L. can enhance melanogenesis in mouse hair follicle melanocytes by elevating the expression of α-melanocyte stimulating hormone (α-MSH) and melanocortin-1 recepter (MC-1R). Nevertheless, there is a lack of information regarding the impact of tribuloside on pigmentation in both laboratory settings and living organisms. AIM OF THE STUDY The present research aimed to examine the impact of tribuloside on pigmentation, and delve into the underlying mechanism. MATERIALS AND METHODS Following the administration of tribuloside in human epidermal melanocytes (HEMCs), we utilized microplate reader, Masson-Fontana ammoniacal silver stain, transmission electron microscopy (TEM) and scanning electron microscopy (SEM) to measure melanin contents, dendrite lengths, melanosome counts; L-DOPA oxidation assay to indicate tyrosinase activity, Western blotting to evaluate the expression of melanogenic and associated phosphodiesterase (PDE)/cyclic adenosine monophosphate (cAMP)/cyclic-AMP dependent protein kinase A (PKA) pathway proteins. A PDE-Glo assay to verify the inhibitory effect of tribuloside on PDE was also conducted. Additionally, we examined the impact of tribuloside on the pigmentation in both zebrafish model and human skin samples. RESULTS Tribuloside had a notable impact on the production of melanin in melanocytes, zebrafish, and human skin samples. These functions might be attributed to the inhibitory effect of tribuloside on PDE, which could increase the intracellular level of cAMP to stimulate the phosphorylation of cAMP-response element binding (CREB). Once activated, it induced microphthalmia-associated transcription factor (MITF) expression and increased the expression of tyrosinase, Rab27a and cell division cycle protein 42 (Cdc42), ultimately facilitating melanogenesis, melanocyte dendricity, and melanin transport. CONCLUSION Tribuloside acts on the PDE/cAMP/PKA pathway to enhance melanogenesis, melanocyte dendricity, and melanosome transport; meanwhile, tribuloside does not have any toxic effects on cells and may be introduced into clinical prescriptions to promote pigmentation.
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Affiliation(s)
- Yan Cao
- Department of Dermatology, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Jinpeng Lv
- School of Pharmacy, Changzhou University, Changzhou, 213000, Jiangsu, China
| | - Yan Tan
- Department of Dermatology, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Ruolin Chen
- Department of Dermatology, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Xiaoxue Jiang
- Department of Dermatology, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China
| | - Duo Meng
- School of Pharmacy, Changzhou University, Changzhou, 213000, Jiangsu, China
| | - Kun Zou
- School of Pharmacy, Changzhou University, Changzhou, 213000, Jiangsu, China
| | - Min Pan
- Department of Dermatology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China.
| | - Liming Tang
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, Jiangsu, China.
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Dong J, Tong X, Xu J, Pan M, Wang L, Xu F, Wang Y, Li L, Wang T. Metformin improves obesity-related oligoasthenospermia via regulating the expression of HSL in testis in mice. Eur J Pharmacol 2024; 968:176388. [PMID: 38367685 DOI: 10.1016/j.ejphar.2024.176388] [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: 09/13/2023] [Revised: 01/17/2024] [Accepted: 02/01/2024] [Indexed: 02/19/2024]
Abstract
Researches have proposed that obesity might contribute to development of oligoasthenospermia. This study was performed to confirm whether obesity contributes to oligoasthenospermia as well as the underlying mechanisms in mice fed with a high fat diet (HFD). Meanwhile, the actions of metformin, a drug of well-known weight-lowering effect, on sperm quality in obese mice were investigated. Our results showed that HFD feeding reduced sperm quality and steroid hormone levels in mice, associated with disruptions in testicular histomorphology and spermatogenesis. Moreover, obesity increased sperm apoptosis. These effects could be prevented by metformin treatment in HFD-fed mice. Mechanistically, an increasement in lipid contents associated with decreased hormone-sensitive lipase (HSL) protein expression in testes in HFD-fed mice was observed, which could be improved by metformin treatment. Then, the model of TM4 mouse Sertoli cells stimulated with palmitic acid (PA) was used to investigate the potential effect of lipid retention on testicular apoptosis and sperm quality reduction. In consistent, PA exposure elevated lipid contents as well as apoptosis in TM4 cells, which could also be improved by metformin treatment. Of note, the protein expression of HSL was reduced stimulated by PA in TM4 cells, also rescued by metformin. Then, anti-apoptosis effect of metformin would be lost with the deficiency of HSL. In summary, our study propose that obesity contributes to oligoasthenospermia by increasing sperm apoptosis induced by impaired lipid hydrolysis due to HSL down-regulation, which could be prevented with metformin treatment via regulating the expression of HSL in testis in mice.
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Affiliation(s)
- Jinhui Dong
- Department of Physiology and Pharmacology, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Xiaohui Tong
- Department of Physiology and Pharmacology, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Jing Xu
- Department of Physiology and Pharmacology, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Min Pan
- Department of Physiology and Pharmacology, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Lei Wang
- Department of Physiology and Pharmacology, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Fei Xu
- Department of Physiology and Pharmacology, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Yajuan Wang
- Department of Physiology and Pharmacology, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Li Li
- Department of Physiology and Pharmacology, Anhui University of Chinese Medicine, Hefei, 230012, China.
| | - Tongsheng Wang
- Department of Physiology and Pharmacology, Anhui University of Chinese Medicine, Hefei, 230012, China.
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Yang T, Pan J, Wu H, Tian C, Wang C, Xiao B, Pan M, Wu X. Rapid flotation of Microcystis wesenbergii mediated by high light exposure: implications for surface scum formation and cyanobacterial species succession. Front Plant Sci 2024; 15:1367680. [PMID: 38633455 PMCID: PMC11022887 DOI: 10.3389/fpls.2024.1367680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/01/2024] [Indexed: 04/19/2024]
Abstract
Increasing occurrences of Microcystis surface scum have been observed in the context of global climate change and the increase in anthropogenic pollution, causing deteriorating water quality in aquatic ecosystems. Previous studies on scum formation mainly focus on the buoyancy-driven floating process of larger Microcystis colonies, neglecting other potential mechanisms. To study the non-buoyancy-driven rapid flotation of Microcystis, we here investigate the floating processes of two strains of single-cell species (Microcystis aeruginosa and Microcystis wesenbergii), which are typically buoyant, under light conditions (150 μmol photons s-1 m-2). Our results showed that M. wesenbergii exhibited fast upward migration and formed surface scum within 4 hours, while M. aeruginosa did not form visible scum throughout the experiments. To further explore the underlying mechanism of these processes, we compared the dissolved oxygen (DO), extracellular polymeric substance (EPS) content, and colony size of Microcystis in different treatments. We found supersaturated DO and the formation of micro-bubbles (50-200 µm in diameter) in M. wesenbergii treatments. M. aeruginosa produces bubbles in small quantities and small sizes. Additionally, M. wesenbergii produced more EPS and tended to aggregate into larger colonies. M. wesenbergii had much more derived-soluble extracellular proteins and polysaccharides compared to M. aeruginosa. At the same time, M. wesenbergii contains abundant functional groups, which was beneficial to the formation of agglomerates. The surface scum observed in M. wesenbergii is likely due to micro-bubbles attaching to the surface of cell aggregates or becoming trapped within the colony. Our study reveals a species-specific mechanism for the rapid floatation of Microcystis, providing novel insights into surface scum formation as well as succession of cyanobacterial species.
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Affiliation(s)
- Tiantian Yang
- Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- Kunming Dianchi & Plateau Lakes Institute, Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming, China
| | - Jiaxin Pan
- Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Hydraulic and Envrionmental Engineering, China Three Gorges University, Yichang, China
| | - Huaming Wu
- Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
| | - Cuicui Tian
- Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- Kunming Dianchi & Plateau Lakes Institute, Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming, China
| | - Chunbo Wang
- Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- Kunming Dianchi & Plateau Lakes Institute, Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming, China
| | - Bangding Xiao
- Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- Kunming Dianchi & Plateau Lakes Institute, Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming, China
| | - Min Pan
- Kunming Dianchi & Plateau Lakes Institute, Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming, China
| | - Xingqiang Wu
- Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- Kunming Dianchi & Plateau Lakes Institute, Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming, China
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Shi H, Ge Q, Pan M, Sheng Y, Qi T, Zhou Y, Sun Y, Bai Y, Cai L. Agarose amplification based sequencing characterization cell-free RNA in preimplantation spent embryo medium. Anal Chim Acta 2024; 1296:342331. [PMID: 38401939 DOI: 10.1016/j.aca.2024.342331] [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: 09/15/2023] [Revised: 02/01/2024] [Accepted: 02/03/2024] [Indexed: 02/26/2024]
Abstract
BACKGROUND The cell-free RNA (cf-RNA) of spent embryo medium (SEM) has aroused a concern of academic and clinical researchers for its potential use in non-invasive embryo screening. However, comprehensive characterization of cf-RNA from SEM still presents significant technical challenges, primarily due to the limited volume of SEM. Hence, there is urgently need to a small input liquid volume and ultralow amount of cf-RNA library preparation method to unbiased cf-RNA sequencing from SEM. (75) RESULT: Here, we report a high sensitivity agarose amplification-based cf-RNA sequencing method (SEM-Acf) for human preimplantation SEM cf-RNA analysis. It is a cf-RNA sequencing library preparation method by adding agarose amplification. The agarose amplification sensitivity (0.005 pg) and efficiency (105.35 %) were increased than that of without agarose addition (0.45 pg and 96.06 %) by ∼ 90 fold and 9.29 %, respectively. Compared with SMART sequencing (SMART-seq), the correlation of gene expression was stronger in different SEM samples by using SEM-Acf. The cf-RNA number of detected and coverage uniformity of 3' end were significantly increased. The proportion of 5' end adenine, alternative splicing events and short fragments (<400 bp) were increased. It is also found that 4-mer end motifs of cf-RNA fragments was significantly differences between different embryonic stage by day3 spent cleavage medium and day5/6 spent blastocyst medium. (141) SIGNIFICANCE: This study established an efficient SEM amplification and library preparation method. Additionally, we successfully described the characterizations of SEM cf-RNA in preimplantation embryo using SEM-Acf, including expression features and fragment lengths. SEM-Acf facilitates the exploration of cf-RNA as a noninvasive embryo screening biomarker, and opens up potential clinical utilities of small input liquid volume and ultralow amount cf-RNA sequencing. (59).
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Affiliation(s)
- Huajuan Shi
- State Key Laboratory of Digital Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Qinyu Ge
- State Key Laboratory of Digital Medical Engineering, Southeast University, Nanjing, 210096, China.
| | - Min Pan
- School of Medicine, Southeast University, Nanjing, 210097, China
| | - Yuqi Sheng
- State Key Laboratory of Digital Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Ting Qi
- State Key Laboratory of Digital Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Ying Zhou
- State Key Laboratory of Digital Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yuqing Sun
- State Key Laboratory of Digital Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yunfei Bai
- State Key Laboratory of Digital Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Lingbo Cai
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China.
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Zhou X, Li Y, Pan M, Lu T, Liu C, Wang Z, Tang F, Hu G. PKM2 promotes lymphatic metastasis of hypopharyngeal carcinoma via regulating epithelial-mesenchymal transition: an experimental research. Diagn Pathol 2024; 19:48. [PMID: 38431604 PMCID: PMC10907999 DOI: 10.1186/s13000-024-01474-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 02/25/2024] [Indexed: 03/05/2024] Open
Abstract
BACKGROUND Patients with hypopharyngeal carcinoma (HPC) have a poor prognosis mainly because of lymphatic metastasis. This research aimed to determine the PKM2 role in lymphatic metastasis in HPC and the underlying molecular mechanism contributing to this phenomenon. METHODS PKM2 in HPC was studied for its expression and its likelihood of overall survival using TCGA dataset. Western blotting, qRT-PCR, and IHC were employed to confirm PKM2 expression. Methods including gain- and loss-of-function were used to examine the PKM2 role in HPC metastasis in vitro and in vivo. In vitro and in vivo studies also confirmed lymphatic metastasis's mechanism. RESULTS Prominent PKM2 overexpression was seen in patients with lymphatic metastasis of HPC, and there was an inherent relationship between a high PKM2 level and poor prognosis. In vitro research showed that knocking down PKM2 decreased tumor cell invasion, migration, and proliferation while promoting apoptosis and inhibiting epithelial-mesenchymal transition, but overexpressing PKM2 had the reverse effect. Animal studies suggested that PKM2 may facilitate tumor development and lymphatic metastasis. CONCLUSIONS Our findings suggest that PKM2 may be a tumor's promoter gene of lymphatic metastasis, which may promote lymphatic metastasis of HPC by regulating epithelial-mesenchymal transition. PKM2 may be a biomarker of metastatic potential, ultimately providing a basis for exploring new therapeutic targets.
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Affiliation(s)
- Xin Zhou
- Department of Otolaryngology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
- Department of Otolaryngology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Yanshi Li
- Department of Otolaryngology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Min Pan
- Department of Otolaryngology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Tao Lu
- Department of Otolaryngology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Chuan Liu
- Department of Otolaryngology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Zhihai Wang
- Department of Otolaryngology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Fengxiang Tang
- Department of Otolaryngology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Guohua Hu
- Department of Otolaryngology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China.
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Wang L, Zeng Y, Zhou L, Xu P, Guo X, Xie Y, Cai J, Pan M, Tang J, Gong Q, Su R, Liu Y, Lou Y. Cost-effectiveness of tirofiban for acute ischemic stroke without large or medium-sized vessel occlusion: A Markov modelling analysis from the Chinese and United States perspectives. PLoS One 2024; 19:e0297939. [PMID: 38363737 PMCID: PMC10871502 DOI: 10.1371/journal.pone.0297939] [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: 07/31/2023] [Accepted: 01/14/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND The RESCUE BT2 trial recently showcased the efficacy of tirofiban in treating acute ischemic stroke (AIS) without large or medium-sized vessel occlusion. To further assess the value of tirofiban from the perspectives of Chinese and US healthcare system, a study was conducted to evaluate its cost-effectiveness. METHODS A hybrid model, integrating a short-term decision tree with a long-term Markov model, was developed to assess cost-effectiveness between tirofiban and aspirin for stroke patients without large or medium-sized vessel occlusion. Efficacy data for tirofiban was sourced from the RESCUE BT2 trial, while cost information was derived from published papers. Outcomes measured included respective cost, effectiveness, and incremental cost-effectiveness ratio (ICER). We conducted a one-way sensitivity analysis to assess the robustness of the results. Additionally, we performed probabilistic sensitivity analysis (PSA) through 10,000 Monte Carlo simulations to evaluate the uncertainties associated with the results. RESULTS The study revealed that tirofiban treatment in AIS patients without large or medium-sized vessel occlusion led to a considerable reduction of 2141 Chinese Yuan (CNY) in total cost, along with a lifetime gain of 0.14 quality-adjusted life years (QALYs). In the US settings, tirofiban also exhibited a lower cost ($197,055 versus $201,984) and higher effectiveness (4.15 QALYs versus 4.06 QALYs) compared to aspirin. One-way sensitivity analysis revealed that post-stroke care costs and stroke utility had the greatest impact on ICER fluctuation in both Chinese and US settings. However, these variations did not exceed the willingness-to-pay threshold. PSA demonstrated tirofiban's superior acceptability over aspirin in over 95% of potential scenarios. CONCLUSION Tirofiban treatment for AIS without large or medium-sized vessel occlusion appeared dominant compared to aspirin in both China and the US.
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Affiliation(s)
- Li Wang
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Yuhong Zeng
- Department of Epidemiology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, People’s Republic of China
- Evidence-based Medicine and Clinical Epidemiology Center, Army Medical University (Third Military Medical University), Chongqing, People’s Republic of China
| | - Limei Zhou
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Ping Xu
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Xianbin Guo
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Yu Xie
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Junxiu Cai
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Min Pan
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Jie Tang
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Qingtao Gong
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Rong Su
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Yan Liu
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Yake Lou
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Park JH, Hothi P, Lopez Garcia de Lomana A, Pan M, Calder R, Turkarslan S, Wu WJ, Lee H, Patel AP, Cobbs C, Huang S, Baliga NS. Gene regulatory network topology governs resistance and treatment escape in glioma stem-like cells. bioRxiv 2024:2024.02.02.578510. [PMID: 38370784 PMCID: PMC10871280 DOI: 10.1101/2024.02.02.578510] [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] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Poor prognosis and drug resistance in glioblastoma (GBM) can result from cellular heterogeneity and treatment-induced shifts in phenotypic states of tumor cells, including dedifferentiation into glioma stem-like cells (GSCs). This rare tumorigenic cell subpopulation resists temozolomide, undergoes proneural-to-mesenchymal transition (PMT) to evade therapy, and drives recurrence. Through inference of transcriptional regulatory networks (TRNs) of patient-derived GSCs (PD-GSCs) at single-cell resolution, we demonstrate how the topology of transcription factor interaction networks drives distinct trajectories of cell state transitions in PD-GSCs resistant or susceptible to cytotoxic drug treatment. By experimentally testing predictions based on TRN simulations, we show that drug treatment drives surviving PD-GSCs along a trajectory of intermediate states, exposing vulnerability to potentiated killing by siRNA or a second drug targeting treatment-induced transcriptional programs governing non-genetic cell plasticity. Our findings demonstrate an approach to uncover TRN topology and use it to rationally predict combinatorial treatments that disrupts acquired resistance in GBM.
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Affiliation(s)
| | - Parvinder Hothi
- Ivy Center for Advanced Brain Tumor Treatment, Swedish Neuroscience Institute, Seattle, WA
| | | | - Min Pan
- Institute for Systems Biology, Seattle, WA
| | | | | | - Wei-Ju Wu
- Institute for Systems Biology, Seattle, WA
| | - Hwahyung Lee
- Ivy Center for Advanced Brain Tumor Treatment, Swedish Neuroscience Institute, Seattle, WA
| | - Anoop P Patel
- Department of Neurosurgery, Preston Robert Tisch Brain Tumor Center, Duke University, Durham, NC
- Center for Advanced Genomic Technologies, Duke University, Durham, NC
| | - Charles Cobbs
- Ivy Center for Advanced Brain Tumor Treatment, Swedish Neuroscience Institute, Seattle, WA
| | - Sui Huang
- Institute for Systems Biology, Seattle, WA
| | - Nitin S Baliga
- Institute for Systems Biology, Seattle, WA
- Departments of Microbiology, Biology, and Molecular Engineering Sciences, University of Washington, Seattle, WA
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14
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Zhang Z, Qi J, Fan X, Pan M. XAV939 Improves the Prognosis of Myocardial Infarction by Blocking the Wnt/β-Catenin Signalling Pathway. Appl Biochem Biotechnol 2024; 196:605-615. [PMID: 37166649 DOI: 10.1007/s12010-023-04485-y] [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] [Accepted: 04/11/2023] [Indexed: 05/12/2023]
Abstract
Myocardial infarction (MI) is closely related to the Wnt signalling pathway, but the role of XAV939 (a Wnt/β-catenin signalling pathway blocker) in MI has not been elucidated. The purpose of this study was to explore the role of XAV939 in mouse hearts and to provide a new and feasible treatment for improving the prognosis of MI. C57BL/6 (male, 8 weeks old, 20-25 g) mice were selected for our study. The MI model was made by ligating the left anterior descending coronary artery. On day 28 after the operation, cardiac function was examined by echocardiography. Infarct size, fibrosis, and angiogenesis were individually measured by TTC assays, Masson's trichrome staining, and CD31 analysis, respectively. Apoptosis was examined by TdT-mediated dUTP nick-end labelling (TUNEL) staining. The expression of Wnt, β-catenin, caspase 3, Bax, and Bcl-2 was determined by western blotting. XAV939 successfully blocked Wnt/β-catenin signalling pathway activation in cardiomyocytes after MI by promoting the degradation of β-catenin. XAV939 suppressed fibrosis and apoptosis, promoted angiogenesis, reduced myocardial infarct size and improved cardiac function after MI. XAV939 can reduce myocardial infarct size and improve cardiac function by blocking the Wnt/β-catenin signalling pathway, which may provide a new strategy for improving the prognosis of MI.
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Affiliation(s)
- Zhu Zhang
- Department of Cardiology, Jianhu Clinical College, Jiangsu Vocational College of Medicine, 224700, Yancheng, China
| | - Jiancheng Qi
- Department of Cardiology, Jianhu Clinical College, Jiangsu Vocational College of Medicine, 224700, Yancheng, China
| | - Xiucai Fan
- Department of Cardiology, Jianhu Clinical College, Jiangsu Vocational College of Medicine, 224700, Yancheng, China
| | - Min Pan
- Department of Cardiology, West China (Sanya) Hospital, Sichuan University, No. 228 Jiefang Road, Sanya, 572022, Hainan, China.
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15
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Li H, Rao Z, Sun G, Wang M, Yang Y, Zhang J, Li H, Pan M, Wang JJ, Chen XW. Root chemistry and microbe interactions contribute to metal(loid) tolerance of an aromatic plant - Vetiver grass. Journal of Hazardous Materials 2024; 461:132648. [PMID: 37783142 DOI: 10.1016/j.jhazmat.2023.132648] [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: 12/21/2022] [Revised: 07/03/2023] [Accepted: 09/26/2023] [Indexed: 10/04/2023]
Abstract
Aromatic plants, such as vetiver grass (Chrysopogon zizanioides), possess strong abilities to resist environmental stresses. However, whether such abilities stem from the interaction between specific chemical characteristics and the associated microbes in roots and rhizosphere remains unclear. We conducted pot experiments to analyze stress-tolerant parameters, organic compounds, and bacterial communities in roots and rhizosphere of vetiver under typical metal(loid) stress [cadmium (Cd), arsenic (As), or Cd + As] over time. The results showed that the vetiver displayed limited toxic symptoms in terms of oxidative stress-antioxidant balance and chlorophyll content. The root low-molecular-weight organic acids (LMWOAs), fatty acids, and sterols were highly sensitive to growth stage (increased from the 4-month to the 8-month stage), and less sensitive to metal(loid) stress. The sugar contents in the rhizosphere soils also notably increased over time. Such endo and rhizosphere chemical changes strongly correlated with and enriched the functional bacteria including Streptomyces, which can resist stress and promote plant growth. The compound-bacteria interaction highly depended on growth stage. Vetiver demonstrated a progressive adaptation to stresses through metabolite modulation and cellular defense reinforcement. Our study evidenced that vetiver shapes the interaction between organic compounds and bacterial community in the root-soil interface and provides notable stress-resistant functions.
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Affiliation(s)
- Huishan Li
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zuomin Rao
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Guodong Sun
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Mengke Wang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yuanxi Yang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Junwen Zhang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hui Li
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Min Pan
- School of Science and Technology, Hong Kong Metropolitan University, Ho Man Tin, Hong Kong, China
| | - Jun-Jian Wang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Xun Wen Chen
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
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Liu J, Yang T, Dai L, Shi K, Hao Y, Chu B, Hu D, Bei Z, Yuan L, Pan M, Qian Z. Intravesical chemotherapy synergize with an immune adjuvant by a thermo-sensitive hydrogel system for bladder cancer. Bioact Mater 2024; 31:315-332. [PMID: 37663619 PMCID: PMC10468327 DOI: 10.1016/j.bioactmat.2023.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/12/2023] [Accepted: 08/12/2023] [Indexed: 09/05/2023] Open
Abstract
Surgical resection remains the prefer option for bladder cancer treatment. However, the effectiveness of surgery is usually limited for the high recurrence rate and poor prognosis. Consequently, intravesical chemotherapy synergize with immunotherapy in situ is an attractive way to improve therapeutic effect. Herein, a combined strategy based on thermo-sensitive PLEL hydrogel drug delivery system was developed. GEM loaded PLEL hydrogel was intravesical instilled to kill tumor cells directly, then PLEL hydrogel incorporated with CpG was injected into both groins subcutaneously to promote immune responses synergize with GEM. The results demonstrated that drug loaded PLEL hydrogel had a sol-gel phase transition behavior in response to physiological temperature and presented sustained drug release, and the PLEL-assisted combination therapy could have better tumor suppression effect and stronger immunostimulating effect in vivo. Hence, this combined treatment with PLEL hydrogel system has great potential and suggests a clinically-relevant and valuable option for bladder cancer.
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Affiliation(s)
- J. Liu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - T.Y. Yang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - L.Q. Dai
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - K. Shi
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Y. Hao
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - B.Y. Chu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - D.R. Hu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Z.W. Bei
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - L.P. Yuan
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - M. Pan
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Z.Y. Qian
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
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17
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Liang X, Yuan C, Wan C, Gao X, Bowen C, Pan M. Soft Self-Healing Robot Driven by New Micro Two-Way Shape Memory Alloy Spring. Adv Sci (Weinh) 2024; 11:e2305163. [PMID: 37984867 PMCID: PMC10787064 DOI: 10.1002/advs.202305163] [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: 07/27/2023] [Revised: 09/15/2023] [Indexed: 11/22/2023]
Abstract
Soft robotic bodies are susceptible to mechanical fatigue, punctures, electrical breakdown, and aging, which can result in the degradation of performance or unexpected failure. To overcome these challenges, a soft self-healing robot is created using a thermoplastic methyl thioglycolate-modified styrene-butadiene-styrene (MG-SBS) elastomer tube fabricated by melt-extrusion, to allow the robot to self-heal autonomously at room temperature. After repeated damage and being separated into several parts, the robot is able to heal its stiffness and elongation to break to enable almost complete recovery of robot performance after being allowed to heal at room temperature for 24 h. The self-healing capability of the robot is examined across the material scale to robot scale by detailed investigations of the healing process, healing efficiency, mechanical characterization of the robot, and assessment of dynamic performance before and after healing. The self-healing robot is driven by a new micro two-way shape-memory alloy (TWSMA) spring actuator which achieved a crawling speed of 21.6 cm/min, equivalent to 1.57 body length per minute. An analytical model of the robot is created to understand the robot dynamics and to act as an efficient tool for self-healing robot design and optimization. This work therefore provides a new methodology to create efficient, robust, and damage-tolerant soft robots.
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Affiliation(s)
- Xianrong Liang
- Department of Mechanical Engineering, University of Bath, Bath, UK
| | - Chenggang Yuan
- Department of Mechanical Engineering, University of Bath, Bath, UK
| | - Chaoying Wan
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry, CV4 7AL, UK
| | - Xiaolong Gao
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Chris Bowen
- Department of Mechanical Engineering, University of Bath, Bath, UK
| | - Min Pan
- Department of Mechanical Engineering, University of Bath, Bath, UK
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Pan M, Nian L, Chen L, Jiang J, Luo D, Ying S, Cao C. The improved bioavailability of zein/soybean protein isolate by puerarin in vitro. Int J Biol Macromol 2023; 253:127354. [PMID: 37839596 DOI: 10.1016/j.ijbiomac.2023.127354] [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: 06/28/2023] [Revised: 09/10/2023] [Accepted: 09/29/2023] [Indexed: 10/17/2023]
Abstract
As the largest emitter of greenhouse gases, the livestock and poultry industry is facing the challenge of increasing production to meet global demand while reducing environmental impacts. Improving feed digestibility by optimizing feed structure (e.g., exogenous additive) is one of the green breeding measures to alleviate carbon pressure. In this study, the interaction mechanism and in vitro digestibility properties of puerarin (PUE) with feed proteins (zein and soy protein isolate (SPI)) to form Zein-PUE and SPI-PUE complexes were investigated mainly by multispectral and molecular docking techniques. Results indicated that the addition of PUE improved the physicochemical properties of proteins (e.g., solubility and disulfide bond contents). Then, the spectral results showed that the binding processes were spontaneous, and the protein structure tended to loose and disordered after binding, and more hydrophobic residues were exposed to the hydrophilic microenvironment. Moreover, on the basis of molecular docking revealed that PUE bound to zein by hydrogen bond, electrostatic and hydrophobic interactions, while with SPI by hydrogen bond and hydrophobic interaction. Finally, in vitro digestion experiments demonstrated that the bioavailability of Zein-PUE and SPI-PUE complexes increased by 1.15 % and 2.11 %, respectively. Overall, PUE is a promising feed additive beneficial for enhancing protein digestibility and bioavailability.
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Affiliation(s)
- Min Pan
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Linyu Nian
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Lin Chen
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Jiang Jiang
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Debo Luo
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Shijia Ying
- Animal Husbandry Institute, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Chongjiang Cao
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China.
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Li SS, Zhao LL, Pan M, Feng N, Li BQ, Zhang XZ, Peng JB, Ma AJ. Total Synthesis of (+)-Peniciketal B. Org Lett 2023; 25:8501-8505. [PMID: 37975639 DOI: 10.1021/acs.orglett.3c03472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
An efficient synthesis of (+)-peniciketal B has been accomplished in 15 steps from the commercially available materials atraric acid, acryloyl chloride, and (+)-homoallylic alcohol. A convergent synthetic approach that is quite concise for constructing either "hemisphere" of (+)-peniciketal B with a common intermediate is employed that relies on a cascade intermolecular FeCl3-mediated "inner sphere" Michael-type reaction/double cyclization of an α,β-unsaturated ketone and substituted phenol to build the benzo-fused 2,8-dioxabicyclo[3.3.1]nonane with excellent diastereoselectivity. The generality of the transformation was also demonstrated by the broad scope of substrates that would be potential candidates for natural product synthesis and medicinal chemistry. Benzannulated [6,6]spiroketal was installed by a late-stage acid-catalyzed spiroketalization.
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Affiliation(s)
- Shan-Shan Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Li-Li Zhao
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Min Pan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Bao-Qiong Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Xiang-Zhi Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, China
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Yang Y, Liu Z, Lu J, Sun Y, Fu Y, Pan M, Xie X, Ge Q. Analysis approaches for the identification and prediction of N6-methyladenosine sites. Epigenetics 2023; 18:2158284. [PMID: 36562485 PMCID: PMC9980620 DOI: 10.1080/15592294.2022.2158284] [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] [Indexed: 12/24/2022] Open
Abstract
The global dynamics in a variety of biological processes can be revealed by mapping transcriptional m6A sites, in particular full-transcriptome m6A. And individual m6A sites have contributed to biological function, which can be evaluated by stoichiometric information obtained from the single nucleotide resolution. Currently, the identification of m6A sites is mainly carried out by experiment and prediction methods, based on high-throughput sequencing and machine learning model respectively. This review summarizes the recent topics and progress made in bioinformatics methods of deciphering the m6A methylation, including the experimental detection of m6A methylation sites, techniques of data analysis, the way of predicting m6A methylation sites, m6A methylation databases, and detection of m6A modification in circRNA. At the end, the essay makes a brief discussion for the development perspective in this area.
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Affiliation(s)
- Yuwei Yang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
| | - Zhiyu Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
| | - Junru Lu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
| | - Yuqing Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
| | - Yue Fu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
| | - Min Pan
- Department of Pathology and Pathophysiology School of Medicine, Southeast University, Nanjing, China
| | - Xueying Xie
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
| | - Qinyu Ge
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
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21
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Pan M, Zhang MM, Zhao L, Lyu Y, Yan XP. Animal experimental study on magnetic anchor technique-assisted endoscopic submucosal dissection of early gastric cancer. World J Gastrointest Endosc 2023; 15:658-665. [DOI: 10.4253/wjge.v15.i11.658] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 10/16/2023] [Accepted: 10/26/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND Gastric cancer (GC) has high morbidity and mortality. Moreover, because GC has no typical symptoms in the early stages, most cases are already in the advanced stages by the time the symptoms appear, thus resulting in poor prognosis and a low survival rate. Endoscopic submucosal dissection (ESD) can realize the early detection and diagnosis of GC and become the main surgical method for early GC. However, ESD has a steep learning curve and high technical skill requirements for endoscopists, which is not conducive to its widespread implementation and advancement. Therefore, a series of auxiliary techniques have been derived.
AIM To evaluate the safety and efficacy of magnetic anchor technique (MAT)-assisted ESD in early GC.
METHODS This was an ex vivo animal experiment. The experimental models were the isolated stomachs of pigs, which were divided into two groups, namely the study group (n = 6) with MAT-assisted ESD and the control group (n = 6) with traditional ESD. Comparing the total surgical time, incidence of surgical complications, complete mucosal resection rate, specimen size, and the scores of endoscopist’s satisfaction with the procedure reflected their feelings about convenience during the surgical procedure between the two groups. The magnetic anchor device for auxiliary ESD in the study group comprised three parts, an anchor magnet (AM), a target magnet (TM), and a soft tissue clip. Under gastroscopic guidance, the soft tissue clip and the TM were delivered to the pre-marked mucosal lesion through the gastroscopic operating hole. The soft tissue clip and the TM were connected by a thin wire through the TM tail structure. The soft tissue clip was released by manipulating the operating handle of the soft tissue clip in a way that the soft tissue clip and the TM were fixed to the lesion mucosa. In vitro, ESD is aided by maneuvering the AM such that the mucosal dissection surface is exposed.
RESULTS The total surgical time was shorter in the study group than in the control group (26.57 ± 0.19 vs 29.97 ± 0.28, P < 0.001), and the scores of endoscopist’s satisfaction with the procedure were higher in the study group than in the control group (9.53 ± 0.10 vs 8.00 ± 0.22, P < 0.001). During the operation in the study group, there was no detachment of the soft tissue clip and TM and no mucosal tearing. The magnetic force between the AM and TM provided good mucosal exposure and sufficient tissue tension for ESD. The mucosal lesion was completely peeled off, and the operation was successful. There were no significant differences in the incidence of surgical complications (100% vs 83.3%), complete mucosal resection rate (100% vs 66.7%, P = 0.439), and specimen size (2.44 ± 0.04 cm vs 2.49 ± 0.02, P = 0.328) between the two groups.
CONCLUSION MAT-ESD is safe and effective for early GC. It provides a preliminary basis for subsequent internal animal experiments and clinical research.
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Affiliation(s)
- Min Pan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710061, Shaanxi Province, China
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Miao-Miao Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710061, Shaanxi Province, China
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Lin Zhao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710061, Shaanxi Province, China
- Zonglian College, Xi’an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Yi Lyu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710061, Shaanxi Province, China
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Xiao-Peng Yan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710061, Shaanxi Province, China
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710061, Shaanxi Province, China
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22
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Lee HM, Wright WC, Pan M, Low J, Currier D, Fang J, Singh S, Nance S, Delahunty I, Kim Y, Chapple RH, Zhang Y, Liu X, Steele JA, Qi J, Pruett-Miller SM, Easton J, Chen T, Yang J, Durbin AD, Geeleher P. A CRISPR-drug perturbational map for identifying compounds to combine with commonly used chemotherapeutics. Nat Commun 2023; 14:7332. [PMID: 37957169 PMCID: PMC10643606 DOI: 10.1038/s41467-023-43134-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023] Open
Abstract
Combination chemotherapy is crucial for successfully treating cancer. However, the enormous number of possible drug combinations means discovering safe and effective combinations remains a significant challenge. To improve this process, we conduct large-scale targeted CRISPR knockout screens in drug-treated cells, creating a genetic map of druggable genes that sensitize cells to commonly used chemotherapeutics. We prioritize neuroblastoma, the most common extracranial pediatric solid tumor, where ~50% of high-risk patients do not survive. Our screen examines all druggable gene knockouts in 18 cell lines (10 neuroblastoma, 8 others) treated with 8 widely used drugs, resulting in 94,320 unique combination-cell line perturbations, which is comparable to the largest existing drug combination screens. Using dense drug-drug rescreening, we find that the top CRISPR-nominated drug combinations are more synergistic than standard-of-care combinations, suggesting existing combinations could be improved. As proof of principle, we discover that inhibition of PRKDC, a component of the non-homologous end-joining pathway, sensitizes high-risk neuroblastoma cells to the standard-of-care drug doxorubicin in vitro and in vivo using patient-derived xenograft (PDX) models. Our findings provide a valuable resource and demonstrate the feasibility of using targeted CRISPR knockout to discover combinations with common chemotherapeutics, a methodology with application across all cancers.
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Affiliation(s)
- Hyeong-Min Lee
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - William C Wright
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Min Pan
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Jonathan Low
- Department of Chemical Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Duane Currier
- Department of Chemical Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Jie Fang
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Shivendra Singh
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Stephanie Nance
- Division of Molecular Oncology, Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Ian Delahunty
- Division of Molecular Oncology, Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Yuna Kim
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Richard H Chapple
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Yinwen Zhang
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Xueying Liu
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Jacob A Steele
- Center for Advanced Genome Engineering, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Jun Qi
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Shondra M Pruett-Miller
- Center for Advanced Genome Engineering, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - John Easton
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Taosheng Chen
- Department of Chemical Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Jun Yang
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA.
- Department of Pathology and Laboratory Medicine, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
| | - Adam D Durbin
- Division of Molecular Oncology, Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA.
| | - Paul Geeleher
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA.
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23
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Wang T, Pan M, Bao M, Bu Q, Yang R, Yang Y, Shao J, Wang C, Li N. Ethyl caffeate combined with fluconazole exhibits efficacy against azole-resistant oropharyngeal candidiasis via the EFGR/JNK/c-JUN signaling pathway. Med Mycol 2023; 61:myad114. [PMID: 37947257 DOI: 10.1093/mmy/myad114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/09/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023] Open
Abstract
Ethyl caffeate (EC) is a phenylpropanoid compound derived from Elephantopus scaber. In our previous work, EC was investigated to have a strong synergistic antifungal effect against azole-resistant strains of Candida albicans when combined with fluconazole (FLU). However, the protective effect and mechanism of EC + FLU on oropharyngeal candidiasis (OPC) caused by drug-resistant strains of C. albicans have not been investigated. This study aimed to investigate the protective effect and mechanism of EC combined with FLU against C. albicans-resistant strains that lead to OPC. An OPC mouse model revealed that EC + FLU treatment reduced fungal load and massive hyphal invasion of tongue tissues, and ameliorated the integrity of the tongue mucosa. Periodic acid-Schiff staining results showed more structural integrity of the tongue tissues and reduced inflammatory cell infiltration after EC + FLU treatment. Phosphorylation of EGFR (epidermal growth factor receptor) and other proteins in the EFGR/JNK (c-Jun N-terminal kinase)/c-JUN (transcription factor Jun) signaling pathway was significantly downregulated by EC + FLU. EGFR and S100A9 mRNA expression were also reduced. The above results were verified in FaDu cells. ELISA results showed that the concentration of inflammatory factors in the cell supernatant was significantly reduced after EC combined with FLU treatment. Molecular docking revealed that EC exhibited high binding energy to EGFR. In conclusion, EC enhances the susceptibility of azole-resistant C. albicans to FLU, and the underlying mechanism is related to the inhibition of the EGFR/JNK/c-JUN signaling pathway. This result suggests that EC has potential to be developed as an antifungal sensitizer to treat OPC caused by azole-resistant C. albicans.
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Affiliation(s)
- Tianming Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, 81 Meshan Road, Hefei 230032, China
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei 230012, China
| | - Min Pan
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei 230012, China
| | - Mengyuan Bao
- School of Pharmacy, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei 230012, China
| | - Qingru Bu
- School of Pharmacy, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei 230012, China
| | - Ruotong Yang
- School of Pharmacy, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei 230012, China
| | - Yue Yang
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei 230012, China
| | - Jing Shao
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei 230012, China
| | - Changzhong Wang
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, 350 Longzihu Road, Hefei 230012, China
| | - Ning Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, 81 Meshan Road, Hefei 230032, China
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Wang L, Yu Y, Zhou L, Xu P, Guo X, Xie Y, Cai J, Pan M, Tang J, Gong Q, Su R, Lou Y, Liu Y. Endovascular treatment for basilar artery occlusion: a cost-effectiveness analysis based on a meta-analysis. Front Neurol 2023; 14:1267554. [PMID: 37928158 PMCID: PMC10623329 DOI: 10.3389/fneur.2023.1267554] [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: 07/26/2023] [Accepted: 09/28/2023] [Indexed: 11/07/2023] Open
Abstract
Objective This study aimed to investigate the efficacy and economic effect of endovascular treatment (EVT) combined with standard medical treatment (SMT) vs. SMT alone in Chinese patients with basilar artery occlusion (BAO) from the perspective of the Chinese healthcare system. Methods We conducted a cost-effectiveness analysis using the results from a meta-analysis comparing EVT and SMT efficacy in Chinese patients with BAO-induced stroke using direct medical costs from the China National Stroke Registry. The meta-analysis's primary outcome was excellent functional outcome (mRS scores of 0-2), with secondary outcomes being poor functional outcome (mRS scores of 3-5) and death (mRS score of 6). To compare EVT plus SMT's cost-effectiveness with that of SMT alone, we constructed a combined decision tree and Markov model with a lifetime duration and a 3-month cycle length. The primary cost-effectiveness outcome was the incremental cost-effectiveness ratio (ICER), representing the incremental cost per incremental quality-adjusted life year (QALY). EVT was considered cost-effective if the ICER was lower than the willingness-to-pay (WTP) threshold of three times the per capita gross domestic product (GDP) in 2021 in China; otherwise, it would not be cost-effective. Results The meta-analysis results indicated that EVT could increase the incidence of excellent functional outcomes, with a risk ratio (RR) of 2.23 (95% confidence interval, CI, 1.18-4.21), p = 0.01. Simultaneously, EVT reduced the risk of poor functional outcome and mortality in the EVT group, with RRs of 0.83 (95% CI, 0.67-1.03), p = 0.09, and 0.71 (95% CI, 0.59-0.85), p = 0.0002, respectively. The study also found that EVT plus SMT resulted in a lifetime effectiveness of 2.15 QALY (3.88 life years) for 32,213 international dollars (Intl.$) per patient with BAO. In contrast, SMT alone achieved an effectiveness of 1.46 QALY (3.03 life years) with a total cost of Intl.$ 13,592 per patient. The ICER was Intl.$ 27,265 per QALY (Intl.$ 22,098 per life-year), which fell below the WTP threshold. Conclusion Compared to SMT, EVT improves the prognosis of BAO-induced stroke. Considering the Chinese healthcare system, adding EVT to SMT proves to be cost-effective for patients with BAO compared to SMT alone.
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Affiliation(s)
- Li Wang
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Ying Yu
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Limei Zhou
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Ping Xu
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Xianbin Guo
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Yu Xie
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Junxiu Cai
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Min Pan
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Jie Tang
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Qingtao Gong
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Rong Su
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
| | - Yake Lou
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yan Liu
- Department of Neurology, Zigong Third People’s Hospital, Zigong, China
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25
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Pan M, Zhang MM, Xu SQ, Lyu Y, Yan XP. Magnetic anchor technique assisted endoscopic submucosal dissection for early esophageal cancer. World J Gastrointest Endosc 2023; 15:584-592. [PMID: 37900117 PMCID: PMC10600693 DOI: 10.4253/wjge.v15.i10.584] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 09/12/2023] [Accepted: 09/25/2023] [Indexed: 10/12/2023] Open
Abstract
BACKGROUND Esophageal cancer has high incidence globally and is often diagnosed at an advanced stage. With the widespread application of endoscopic technologies, the need for early detection and diagnosis of esophageal cancer has gradually been realized. Endoscopic submucosal dissection (ESD) has become the standard of care for managing early tumors of the esophagus, stomach, and colon. However, due to the steep learning curve, difficult operation, and technically demanding nature of the procedure, ESD has currently been committed to the development of various assistive technologies. AIM To explore the feasibility and applicability of magnetic anchor technique (MAT)-assisted ESD for early esophageal cancer. METHODS Isolated pig esophagi were used as the experimental model, and the magnetic anchor device was designed by us. The esophagi used were divided into two groups, namely the operational and control groups, and 10 endoscopists completed the procedure. The two groups were evaluated for the following aspects: The total operative time, perforation rate, rate of whole mucosal resection, diameter of the peering mucosa, and scores of endoscopists' feelings with the procedure, including the convenience, mucosal surface exposure degree, and tissue tension. In addition, in the operational group, the soft tissue clip and the target magnet (TM) were connected by a thin wire through a small hole at the tail end of the TM. Under gastroscopic guidance, the soft tissue clip was clamped to the edge of the lesioned mucosa, which was marked in advance. By changing the position of the anchor magnet (AM) outside the esophagus, the pulling force and pulling direction of the TM could be changed, thus exposing the mucosal peeling surface and assisting the ESD. RESULTS Herein, each of the two groups comprised 10 isolated esophageal putative mucosal lesions. The diameter of the peering mucosa did not significantly differ between the two groups (2.13 ± 0.06 vs 2.15 ± 0.06, P = 0.882). The total operative time was shorter in the operational group than in the control group (17.04 ± 0.22 min vs 21.94 ± 0.23 min, P < 0.001). During the entire experiment, the TM remained firmly connected with the soft tissue clip and did not affect the opening, closing, and release of the soft tissue clip. The interaction between the TM and AM could provide sufficient tissue tension and completely expose the mucosa, which greatly assists the surgeon with the operation. There was no avulsion of the mucosa, and mucosal lesions were intact when peeled. Therefore, the scores of endoscopists' feelings were higher in the operational group than in the control group in terms of the convenience (9.22 ± 0.19 vs 8.34 ± 0.15, P = 0.002), mucosal surface exposure degree (9.11 ± 0.15 vs 8.25 ± 0.12, P < 0.001), and tissue tension (9.35 ± 0.13 vs 8.02 ± 0.17, P < 0.001). The two groups did not significantly differ in the perforation rate and rate of whole mucosal resection. CONCLUSION We found MAT-assisted ESD safe and feasible for early esophageal cancer. It could greatly improve the endoscopic operation experience and showed good clinical application prospects.
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Affiliation(s)
- Min Pan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
| | - Miao-Miao Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
| | - Shu-Qin Xu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
| | - Yi Lyu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
| | - Xiao-Peng Yan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
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Kusebauch U, Lorenzetti APR, Campbell DS, Pan M, Shteynberg D, Kapil C, Midha MK, López García de Lomana A, Baliga NS, Moritz RL. A comprehensive spectral assay library to quantify the Halobacterium salinarum NRC-1 proteome by DIA/SWATH-MS. Sci Data 2023; 10:697. [PMID: 37833331 PMCID: PMC10575869 DOI: 10.1038/s41597-023-02590-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
Data-Independent Acquisition (DIA) is a mass spectrometry-based method to reliably identify and reproducibly quantify large fractions of a target proteome. The peptide-centric data analysis strategy employed in DIA requires a priori generated spectral assay libraries. Such assay libraries allow to extract quantitative data in a targeted approach and have been generated for human, mouse, zebrafish, E. coli and few other organisms. However, a spectral assay library for the extreme halophilic archaeon Halobacterium salinarum NRC-1, a model organism that contributed to several notable discoveries, is not publicly available yet. Here, we report a comprehensive spectral assay library to measure 2,563 of 2,646 annotated H. salinarum NRC-1 proteins. We demonstrate the utility of this library by measuring global protein abundances over time under standard growth conditions. The H. salinarum NRC-1 library includes 21,074 distinct peptides representing 97% of the predicted proteome and provides a new, valuable resource to confidently measure and quantify any protein of this archaeon. Data and spectral assay libraries are available via ProteomeXchange (PXD042770, PXD042774) and SWATHAtlas (SAL00312-SAL00319).
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Affiliation(s)
- Ulrike Kusebauch
- Institute for Systems Biology, 401 Terry Ave N, Seattle, WA, 98109, USA
| | | | - David S Campbell
- Institute for Systems Biology, 401 Terry Ave N, Seattle, WA, 98109, USA
| | - Min Pan
- Institute for Systems Biology, 401 Terry Ave N, Seattle, WA, 98109, USA
| | - David Shteynberg
- Institute for Systems Biology, 401 Terry Ave N, Seattle, WA, 98109, USA
| | - Charu Kapil
- Institute for Systems Biology, 401 Terry Ave N, Seattle, WA, 98109, USA
| | - Mukul K Midha
- Institute for Systems Biology, 401 Terry Ave N, Seattle, WA, 98109, USA
| | - Adrián López García de Lomana
- Institute for Systems Biology, 401 Terry Ave N, Seattle, WA, 98109, USA
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
| | - Nitin S Baliga
- Institute for Systems Biology, 401 Terry Ave N, Seattle, WA, 98109, USA
- Departments of Biology and Microbiology, University of Washington, Seattle, WA, USA
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA, USA
- Lawrence Berkeley National Lab, Berkeley, CA, USA
| | - Robert L Moritz
- Institute for Systems Biology, 401 Terry Ave N, Seattle, WA, 98109, USA.
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Zhou Y, Sheng Y, Pan M, Tu J, Zhao X, Ge Q, Lu Z. Spatial Transcriptomic Analysis Reveals Regional Transcript Changes in Early and Late Stages of rd1 Model Mice with Retinitis Pigmentosa. Int J Mol Sci 2023; 24:14869. [PMID: 37834317 PMCID: PMC10573885 DOI: 10.3390/ijms241914869] [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: 08/04/2023] [Revised: 09/27/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023] Open
Abstract
Retinitis pigmentosa (RP) is the leading cause of inherited blindness with a genetically heterogeneous disorder. Currently, there is no effective treatment that can protect vision for those with RP. In recent decades, the rd1 mouse has been used to study the pathological mechanisms of RP. Molecular biological studies using rd1 mice have clarified the mechanism of the apoptosis of photoreceptor cells in the early stage of RP. However, the pathological changes in RP over time remain unclear. The unknown pathology mechanism of RP over time and the difficulty of clinical treatment make it urgent to perform more refined and spatially informed molecular biology studies of RP. In this study, spatial transcriptomic analysis is used to study the changes in different retinal layers of rd1 mice at different ages. The results demonstrate the pattern of photoreceptor apoptosis between rd1 mice and the control group. Not only was oxidative stress enhanced in the late stage of RP, but it was accompanied by an up-regulation of the VEGF pathway. Analysis of temporal kinetic trends has further identified patterns of changes in the key pathways of the early and late stages, to help understand the important pathogenesis of RP. Overall, the application of spatial transcriptomics to rd1 mice can help to elucidate the important pathogenesis of RP involving photoreceptor apoptosis and retinal remodeling.
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Affiliation(s)
- Ying Zhou
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (Y.Z.); (Y.S.); (J.T.); (X.Z.); (Z.L.)
| | - Yuqi Sheng
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (Y.Z.); (Y.S.); (J.T.); (X.Z.); (Z.L.)
| | - Min Pan
- School of Medicine, Southeast University, Nanjing 210097, China;
| | - Jing Tu
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (Y.Z.); (Y.S.); (J.T.); (X.Z.); (Z.L.)
| | - Xiangwei Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (Y.Z.); (Y.S.); (J.T.); (X.Z.); (Z.L.)
| | - Qinyu Ge
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (Y.Z.); (Y.S.); (J.T.); (X.Z.); (Z.L.)
| | - Zuhong Lu
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (Y.Z.); (Y.S.); (J.T.); (X.Z.); (Z.L.)
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Pan M, Li YY, Li DZ. Test failure in prenatal cell-free DNA aneuploidy screening: nonreportable, but not nonsignificant. Am J Obstet Gynecol 2023; 229:474-475. [PMID: 37120050 DOI: 10.1016/j.ajog.2023.04.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 04/25/2023] [Indexed: 05/01/2023]
Affiliation(s)
- Min Pan
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | | | - Dong-Zhi Li
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Jinsui Rd 9, Zhujiang New Town, Guangzhou 510623, Guangdong China.
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Hu Z, Xue J, Pan M, Bao Y, Zou W, Wang C, Ma J. Prevalence of allergen sensitization among children with allergic rhinitis in Changzhou, China: a retrospective observational study. BMC Pediatr 2023; 23:466. [PMID: 37716964 PMCID: PMC10504732 DOI: 10.1186/s12887-023-04291-9] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/05/2023] [Indexed: 09/18/2023] Open
Abstract
OBJECTIVE To determine the prevalence of sensitivity to common inhaled and food allergens among children with allergic rhinitis (AR) in Changzhou in eastern China and provide a basis for epidemiological research of pediatric allergic rhinitis and allergen avoidance in this region. METHODS This was a retrospective observational study, a total of 1248 children with AR were enrolled at the Third People's Hospital of Changzhou between January 2018 and December 2019. The serum-specific immunoglobulin E (sIgE) to 19 kinds of inhaled and food allergens and serum total IgE were detected with the AllergyScreen test (Mediwiss Analytic GmbH, Moers, Germany). All participants had a positive reaction to at least one allergen in the test (the sIgE concentration ≥ 0.35 IU/ml). RESULTS Among the patients, 818 (65.54%) were male and 430 (34.46%) were female, with 81 (6.50%) aged 1-3 year, 501 (40.14%) aged 4-7 year, and 666 (53.36%) aged 8-14 year. The positivity rate of inhaled allergens was 80.05% (n = 999), while the positivity rate of food allergens was 66.19% (n = 826). 828 patients (66.35%) were sensitized to multiple allergens. The most common inhaled allergens were Dermatophagoides pteronyssinus (65.38%), mold mix (25.56%), house dust (20.67%), and dog hair dander (13.94%), and the most common food allergens were cow's milk (30.31%), cashew nut (27.9%), egg (22.68%), and beef (12.98%). With an increase in age, the inhaled allergen positivity rate showed a significant increase (P < 0.01), while the food allergen positivity rate decreased significantly (P < 0.01). There were significant age differences in total IgE levels (P < 0.01) and the total IgE level was highest in the group aged 8-14 year. CONCLUSIONS Dermatophagoides pteronyssinus was the most common sensitizing allergen in pediatric patients with AR in Changzhou. Several other inhaled and food allergens were also common. We observed that multiple allergenic factors play an important role in the occurrence and development of AR.
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Affiliation(s)
- Zhibang Hu
- Department of Otorhinolaryngology, the Third People's Hospital of Changzhou, Changzhou, 213001, China
| | - Jianrong Xue
- Department of Otorhinolaryngology, the Third People's Hospital of Changzhou, Changzhou, 213001, China
| | - Min Pan
- Department of Pharmacy, the Third People's Hospital of Changzhou, Changzhou, 213001, China
| | - Yongzheng Bao
- Department of Otorhinolaryngology, the Third People's Hospital of Changzhou, Changzhou, 213001, China
| | - Wenlan Zou
- Department of Otorhinolaryngology, the Third People's Hospital of Changzhou, Changzhou, 213001, China
| | - Chunhui Wang
- Department of Otorhinolaryngology, the Third People's Hospital of Changzhou, Changzhou, 213001, China
| | - Jing Ma
- Department of Otorhinolaryngology, the Third People's Hospital of Changzhou, Changzhou, 213001, China.
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Huang Q, Chen Y, Wang X, Wei Y, Pan M, Zhao G. Effects of Phlorotannins from Sargassum on In Vitro Rumen Fermentation, Microbiota and Fatty Acid Profile. Animals (Basel) 2023; 13:2854. [PMID: 37760253 PMCID: PMC10525790 DOI: 10.3390/ani13182854] [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: 08/05/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
The fatty acid profiles of ruminant-derived products are closely associated with human health. Ruminal microbiota play a vital role in modulating rumen biohydrogenation (BH). The aim of this study was to assess the influence of dietary supplementation with phlorotannins (PTs) extracted from Sargassum on rumen fermentation, fatty acid composition and bacterial communities by an in vitro culture study. The inclusion of PTs in the diet increased dry matter digestibility and gas production, and reduced ammonia-N concentration and pH. PT extract inhibited rumen BH, increasing the content of trans-9 C18:1, cis-9 C18:1, trans-9 and trans-12 C18:2 and reducing C18:0 concentration. 16S rRNA sequencing revealed that PTs caused an obvious change in rumen bacterial communities. The presence of Prevotella decreased while carbohydrate-utilizing bacteria such as Prevotellaceae_UCG-001, Ruminococcus, Selenomonas, Ruminobacter and Fibrobacter increased. Correlation analysis between rumen FA composition and the bacterial microbiome revealed that Prevotellaceae_UCG-001, Anaerovorax, Ruminococcus, Ruminobacter, Fibrobacter, Lachnospiraceae_AC2044_group and Clostridia_UCG-014 might have been involved in the BH process. In conclusion, the results suggest that the inclusion of PTs in the diet improved rumen fermentation and FA composition through modulating the rumen bacterial community.
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Affiliation(s)
- Qianqian Huang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.C.)
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Yuhua Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.C.)
| | - Xingxing Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.C.)
| | - Yuanhao Wei
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.C.)
| | - Min Pan
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.C.)
| | - Guoqi Zhao
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.C.)
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
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Zhou H, Yang X, Yi C, Zhong H, Yuan S, Pan M, Li D, Liao C. Prenatal diagnosis and early childhood outcome of fetuses with extremely large nuchal translucency. Mol Cytogenet 2023; 16:22. [PMID: 37660152 PMCID: PMC10475177 DOI: 10.1186/s13039-023-00650-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 07/20/2023] [Indexed: 09/04/2023] Open
Abstract
OBJECTIVE To evaluate the prenatal and perinatal outcome of fetuses with extremely large nuchal translucency (eNT) thickness (≥ 6.5 mm). METHODS 193 (0.61%) singleton fetuses with eNT were retrospectively included. Anomaly scan, echocardiography, and chromosomal and genetic test were included in our antenatal investigation. Postnatal follow-up was offered to all newborns. RESULTS Major congenital anomalies included congenital heart defect (32.6%, 63/193), hydrops fetalis (13.5%, 26/193), omphalocele (9.3%, 18/193), and skeletal dysplasia (7.8%, 15/193) et al. Abnormal karyotype was identified in 81/115 (70.4%) cases including Turner syndrome (n = 47), Trisomy 18 (n = 17), Trisomy 21 (n = 9), and Trisomy 13 (n = 3). Chromosomal microarray analysis provided informative results with 3.6% (1/28) incremental diagnostic yield over conventional karyotyping. The diagnostic yield of exome sequencing is 10.0% (2/20). There was no significant increase [Odds Ratio (OR) = 1.974; 95% confidence interval 0.863-4.516; P = 0.104] in the incidence of chromosomal defects despite the presence of other structural anomalies. Only 13 fetuses were successfully followed up and survived at term, no one was found with developmental delay or mental retardation. CONCLUSIONS Extremely large NT has a high risk of chromosomal abnormality. CMA and ES improve chromosomal genomic and genetic diagnosis of fetal increased NT. When cytogenetic analysis and morphology assessment are both normal, the outcome is good.
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Affiliation(s)
- Hang Zhou
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xin Yang
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
- Department of Medical Genetics and Prenatal Diagnosis, Longgang District Maternity and Child Healthcare Hospital of Shenzhen City (Longgang Maternity and Child Institute of Shantou University Medical College), Shenzhen, Guangdong, China
| | - CuiXing Yi
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Huizhu Zhong
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Simin Yuan
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Min Pan
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Dongzhi Li
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Can Liao
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China.
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Pan M, Li DZ. Placenta insufficiency and congenital heart defects. Am J Obstet Gynecol MFM 2023; 5:101070. [PMID: 37406988 DOI: 10.1016/j.ajogmf.2023.101070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 06/19/2023] [Indexed: 07/07/2023]
Affiliation(s)
- Min Pan
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Jinsui Rd 9, Guangzhou 510623, China
| | - Dong-Zhi Li
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Jinsui Rd 9, Guangzhou 510623, China.
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Li Y, Tao J, Zhang Y, Shi K, Chang J, Pan M, Song L, Jeppesen E, Zhou Q. Urbanization shifts long-term phenology and severity of phytoplankton blooms in an urban lake through different pathways. Glob Chang Biol 2023; 29:4983-4999. [PMID: 37353861 DOI: 10.1111/gcb.16828] [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: 12/15/2022] [Revised: 04/14/2023] [Accepted: 05/31/2023] [Indexed: 06/25/2023]
Abstract
Climate change can induce phytoplankton blooms (PBs) in eutrophic lakes worldwide, and these blooms severely threaten lake ecosystems and human health. However, it is unclear how urbanization and its interaction with climate impact PBs, which has implications for the management of lakes. Here, we used multi-source remote sensing data and integrated the Virtual-Baseline Floating macroAlgae Height (VB-FAH) index and OTSU threshold automatic segmentation algorithm to extract the area of PBs in Lake Dianchi, China, which has been subjected to frequent PBs and rapid urbanization in its vicinity. We further explored long-term (2000-2021) trends in the phenological and severity metrics of PBs and quantified the contributions from urbanization, climate change, and also nutrient levels to these trends. When comparing data from 2011-2021 to 2000-2010, we found significantly advanced initiation of PBs (28.6 days) and noticeably longer duration (51.9 days) but an insignificant trend in time of disappearance. The enhancement of algal nutrient use efficiency, likely induced by increased water temperature and reduced nutrient concentrations, presumably contributed to an earlier initiation and longer duration of PBs, while there was a negative correlation between spring wind speed and the initiation of PBs. Fortunately, we found that both the area of the PBs and the frequency of severe blooms (covering more than 19.8 km2 ) demonstrated downward trends, which could be attributed to increased wind speed and/or reduced nutrient levels. Moreover, the enhanced land surface temperature caused by urbanization altered the thermodynamic characteristics between the land and the lake, which, in turn, possibly caused an increase in local wind speed and water temperature, suggesting that urbanization can differently regulate the phenology and severity of PBs. Our findings have significant implications for the understanding of the impacts of urbanization on PB dynamics and for improving lake management practices to promote sustainable urban development under global change.
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Affiliation(s)
- Yuanrui Li
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, China
| | - Juan Tao
- Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Institute of International Rivers and Eco-Security, Yunnan University, Kunming, China
| | - Yunlin Zhang
- Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China
| | - Kun Shi
- Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China
| | - Junjun Chang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, China
| | - Min Pan
- Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming Dianchi and Plateau Lakes Institute, Kunming, China
| | - Lirong Song
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Erik Jeppesen
- Department of Ecoscience, Aarhus University, Aarhus, Denmark
- Sino-Danish Centre for Education and Research, Beijing, China
- Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara, Turkey
- Institute of Marine Sciences, Middle East Technical University, Mersin, Turkey
| | - Qichao Zhou
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, China
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Peterson EJR, Brooks AN, Reiss DJ, Kaur A, Do J, Pan M, Wu WJ, Morrison R, Srinivas V, Carter W, Arrieta-Ortiz ML, Ruiz RA, Bhatt A, Baliga NS. MtrA modulates Mycobacterium tuberculosis cell division in host microenvironments to mediate intrinsic resistance and drug tolerance. Cell Rep 2023; 42:112875. [PMID: 37542718 PMCID: PMC10480492 DOI: 10.1016/j.celrep.2023.112875] [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: 08/16/2021] [Revised: 04/21/2023] [Accepted: 07/11/2023] [Indexed: 08/07/2023] Open
Abstract
The success of Mycobacterium tuberculosis (Mtb) is largely attributed to its ability to physiologically adapt and withstand diverse localized stresses within host microenvironments. Here, we present a data-driven model (EGRIN 2.0) that captures the dynamic interplay of environmental cues and genome-encoded regulatory programs in Mtb. Analysis of EGRIN 2.0 shows how modulation of the MtrAB two-component signaling system tunes Mtb growth in response to related host microenvironmental cues. Disruption of MtrAB by tunable CRISPR interference confirms that the signaling system regulates multiple peptidoglycan hydrolases, among other targets, that are important for cell division. Further, MtrA decreases the effectiveness of antibiotics by mechanisms of both intrinsic resistance and drug tolerance. Together, the model-enabled dissection of complex MtrA regulation highlights its importance as a drug target and illustrates how EGRIN 2.0 facilitates discovery and mechanistic characterization of Mtb adaptation to specific host microenvironments within the host.
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Affiliation(s)
| | | | - David J Reiss
- Institute for Systems Biology, Seattle, WA 98109, USA
| | - Amardeep Kaur
- Institute for Systems Biology, Seattle, WA 98109, USA
| | - Julie Do
- Institute for Systems Biology, Seattle, WA 98109, USA
| | - Min Pan
- Institute for Systems Biology, Seattle, WA 98109, USA
| | - Wei-Ju Wu
- Institute for Systems Biology, Seattle, WA 98109, USA
| | - Robert Morrison
- Laboratory of Malaria, Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892, USA
| | | | - Warren Carter
- Institute for Systems Biology, Seattle, WA 98109, USA
| | | | - Rene A Ruiz
- Institute for Systems Biology, Seattle, WA 98109, USA
| | - Apoorva Bhatt
- School of Biosciences and Institute of Microbiology and Infection, University of Birmingham, Birmingham B15 2TT, UK
| | - Nitin S Baliga
- Institute for Systems Biology, Seattle, WA 98109, USA; Departments of Biology and Microbiology, University of Washington, Seattle, WA 98195, USA; Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA; Lawrence Berkeley National Lab, Berkeley, CA 94720, USA.
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Han X, Zhai Q, Zhang N, Zhang X, He L, Pan M, Zhang B, Liu T. A Real-Time Evaluation Algorithm for Noncontact Heart Rate Variability Monitoring. Sensors (Basel) 2023; 23:6681. [PMID: 37571465 PMCID: PMC10422594 DOI: 10.3390/s23156681] [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: 06/22/2023] [Revised: 07/17/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023]
Abstract
Noncontact vital sign monitoring based on radar has attracted great interest in many fields. Heart Rate Variability (HRV), which measures the fluctuation of heartbeat intervals, has been considered as an important indicator for general health evaluation. This paper proposes a new algorithm for HRV monitoring in which frequency-modulated continuous-wave (FMCW) radar is used to separate echo signals from different distances, and the beamforming technique is adopted to improve signal quality. After the phase reflecting the chest wall motion is demodulated, the acceleration is calculated to enhance the heartbeat and suppress the impact of respiration. The time interval of each heartbeat is estimated based on the smoothed acceleration waveform. Finally, a joint optimization algorithm was developed and is used to precisely segment the acceleration signal for analyzing HRV. Experimental results from 10 participants show the potential of the proposed algorithm for obtaining a noncontact HRV estimation with high accuracy. The proposed algorithm can measure the interbeat interval (IBI) with a root mean square error (RMSE) of 14.9 ms and accurately estimate HRV parameters with an RMSE of 3.24 ms for MEAN (the average value of the IBI), 4.91 ms for the standard deviation of normal to normal (SDNN), and 9.10 ms for the root mean square of successive differences (RMSSD). These results demonstrate the effectiveness and feasibility of the proposed method in emotion recognition, sleep monitoring, and heart disease diagnosis.
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Affiliation(s)
- Xiangyu Han
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China; (X.H.); (Q.Z.)
| | - Qian Zhai
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China; (X.H.); (Q.Z.)
| | - Ning Zhang
- National Research Center for Rehabilitation Technical Aids, Beijing 100176, China; (N.Z.); (X.Z.)
| | - Xiufeng Zhang
- National Research Center for Rehabilitation Technical Aids, Beijing 100176, China; (N.Z.); (X.Z.)
| | - Long He
- Zhiyuan Research Institute, Hangzhou 310024, China;
| | - Min Pan
- Department of Mechanical Engineering, University of Bath, Bath BA2 7AY, UK;
| | - Bin Zhang
- Department of Electrical Engineering, University of South Carolina, Columbia, SC 29208, USA;
| | - Tao Liu
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China; (X.H.); (Q.Z.)
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Han L, Cao Z, Pan M, Hu K, Huang Z, Wang J, Zhao Y, Deng H. The Effect of Antisite Defects on the Mechanical and Dynamic Stability of Nb3Al. J Phys Condens Matter 2023. [PMID: 37478866 DOI: 10.1088/1361-648x/ace9a8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
The A15-type conventional superconductor Nb3Al alloys has been considered as an ideal candidate for next generation high field magnets due to its higher superconducting properties and less sensitivity to stain than that of industrialized Nb3Sn superconductor. First-principles methods are employed to study the potential point defects, vacancy and antisite defects in deviating stoichiometric Nb3Al alloys and their effect on structure and mechanical properties. Our results show that antisite defects are easier to be produced than vacancy defects, and NbAlantisite defects can keep the tetragonal structure of Nb3Al. Furthermore, the influence of antisite defects on dynamic stability of Nb3Al is investigated together with NbAldefects. With the increase of Nb antisite defect content and the formation of orderly arrangement, We found the phonon spectrum yields no more soft phonon modes, which is in contradiction with the dynamical instability of stoichiometric Nb3Al with no defects. Our calculations indicate Nb antisite defects play a crutial role on the dynamic stability of Nb3Al compounds.
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Affiliation(s)
- Lei Han
- Ministry of Education, Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle, (Ministry of Education)and School of Electric Engineering Southwest Jiaotong University, Chengdu, 610031, CHINA
| | - Zelin Cao
- Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, CHINA
| | - Min Pan
- Ministry of Education, Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle, (Ministry of Education)and School of Electric Engineering Southwest Jiaotong University, Chengdu, 610031, CHINA
| | - Kaige Hu
- Guangdong University of Technology, Rm 303, No. 3 Experiment Building, Guangdong University Of Technology, No. 100 Waihuan Xi Road, Guangzhou Higher Education Mega Center, Panyu District, Guangzhou, 510006, CHINA
| | - Zheng Huang
- Southwest Jiaotong University, School of Physical Science and Technology, Chengdu, 610031, CHINA
| | - Jiaming Wang
- Southwest Jiaotong University, School of Physical Science and Technology, Chengdu, 610031, CHINA
| | - Yong Zhao
- Superconductivity R&D Center, Southwest Jiaotong University, Mail stop 152#, Chengdu, Sichuan, 610031 CHINA, Chengdu, Schuan, 610031, CHINA
| | - Huiqiu Deng
- Department of Applied Physics, Hunan University, Changsha, 410082, PEOPLES REPUBLIC OF CHINA, Changsha, 410082, CHINA
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Li SS, Zhao LL, Pan M, Feng N, Peng JB, Ma AJ. K 2CO 3-Promoted oxy-Michael Addition/Cyclization of α, β-Unsaturated Carbonyl Compounds with Naphthols: Synthesis of Naphthopyrans. Molecules 2023; 28:5502. [PMID: 37513372 PMCID: PMC10385152 DOI: 10.3390/molecules28145502] [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: 06/23/2023] [Revised: 07/14/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023] Open
Abstract
A potassium carbonate promoted tandem oxy-Michael addition/cyclization of α,β-unsaturated carbonyl compounds with naphthol derivatives for the synthesis of 2-substituted naphthopyrans was developed. Using the readily available, inexpensive potassium carbonate as the promoter, a range of different substituted naphthopyrans were prepared.
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Affiliation(s)
- Shan-Shan Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Li-Li Zhao
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Min Pan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
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Tang J, Han J, Xue J, Zhen L, Yang X, Pan M, Hu L, Li R, Jiang Y, Zhang Y, Jing X, Li F, Chen G, Zhang K, Zhu F, Liao C, Lu L. A Deep-Learning-Based Method Can Detect Both Common and Rare Genetic Disorders in Fetal Ultrasound. Biomedicines 2023; 11:1756. [PMID: 37371851 DOI: 10.3390/biomedicines11061756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/25/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
A global survey indicates that genetic syndromes affect approximately 8% of the population, but most genetic diagnoses can only be performed after babies are born. Abnormal facial characteristics have been identified in various genetic diseases; however, current facial identification technologies cannot be applied to prenatal diagnosis. We developed Pgds-ResNet, a fully automated prenatal screening algorithm based on deep neural networks, to detect high-risk fetuses affected by a variety of genetic diseases. In screening for Trisomy 21, Trisomy 18, Trisomy 13, and rare genetic diseases, Pgds-ResNet achieved sensitivities of 0.83, 0.92, 0.75, and 0.96, and specificities of 0.94, 0.93, 0.95, and 0.92, respectively. As shown in heatmaps, the abnormalities detected by Pgds-ResNet are consistent with clinical reports. In a comparative experiment, the performance of Pgds-ResNet is comparable to that of experienced sonographers. This fetal genetic screening technology offers an opportunity for early risk assessment and presents a non-invasive, affordable, and complementary method to identify high-risk fetuses affected by genetic diseases. Additionally, it has the capability to screen for certain rare genetic conditions, thereby enhancing the clinic's detection rate.
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Affiliation(s)
- Jiajie Tang
- School of Information Management, Wuhan University, Wuhan 430072, China
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
- Obstetrics and Gynecology Medical Center, Dongguan Kanghua Hospital, Dongguan 523080, China
- Center for Healthcare Big Data Research, The Big Data Institute, Wuhan University, Wuhan 430072, China
| | - Jin Han
- School of Information Management, Wuhan University, Wuhan 430072, China
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
- Obstetrics and Gynecology Medical Center, Dongguan Kanghua Hospital, Dongguan 523080, China
| | - Jiaxin Xue
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Li Zhen
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Xin Yang
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Min Pan
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Lianting Hu
- Medical Big Data Center, Guangdong Provincial People's Hospital, Guangzhou 510317, China
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangzhou 510317, China
| | - Ru Li
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Yuxuan Jiang
- School of Information Management, Wuhan University, Wuhan 430072, China
| | - Yongling Zhang
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Xiangyi Jing
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Fucheng Li
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Guilian Chen
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Kanghui Zhang
- School of Information Management, Wuhan University, Wuhan 430072, China
| | - Fanfan Zhu
- School of Information Management, Wuhan University, Wuhan 430072, China
| | - Can Liao
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Long Lu
- School of Information Management, Wuhan University, Wuhan 430072, China
- Prenatal Diagnosis Center/Clinical Data Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
- Center for Healthcare Big Data Research, The Big Data Institute, Wuhan University, Wuhan 430072, China
- School of Public Health, Wuhan University, Wuhan 430072, China
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Song J, Li Y, Lu T, Pan M, Wang Z, Liu C, Liao Y, Hu G. miR-19a mediates the mechanism by which SPHK2 regulates hypopharyngeal squamous cell carcinoma progression through the PI3K/AKT axis. Am J Cancer Res 2023; 13:2342-2359. [PMID: 37424828 PMCID: PMC10326568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 04/13/2023] [Indexed: 07/11/2023] Open
Abstract
This study explored the expression of sphingosine kinase 2 (SPHK2) and microRNA miR-19a-3p (miR-19a-3p) in patients with Hypopharyngeal squamous cell carcinoma (HSCC) together with pathways affecting HSCC invasion and metastasis. Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting (WB) were performed to assess the differential expression of SPHK2 and miR-19a-3p in patients with HSCC lymph node metastasis (LNM). Immunohistochemical (IHC) results were analyzed together with clinical information to evaluate their clinical significance. Subsequently, the functional effects of SPHK2 overexpression and knockdown on FaDu cells were evaluated in in vitro experiments. We performed in vivo experiments using nude mouse to assess the effects of SPHK2 knockdown on tumor formation, growth and LNM. Finally, we explored upstream and downstream signaling pathways associated with SPHK2 in HSCC. SPHK2 was significantly elevated in HSCC patients with LNM and survival was lower in patients with enhanced SPHK2 expression (P < 0.05). We also demonstrated that SPHK2 overexpression accelerated the proliferation, migration, and invasion. Using animal models, we further verified that SPHK2 deletion abrogated tumor growth and LNM. In terms of mechanism, we found that miR-19a-3p was significantly reduced in HSCC patients with LNM and was negatively associated with SPHK2. MiR-19a-3p and SPHK2 could regulate tumor proliferation and invasion through the PI3K/AKT axis. SPHK2 was found to contribute significantly to both LNM and HSCC patient prognosis and was shown to be an independent risk factor for LNM and staging in HSCC patients. The miR-19a-3p/SPHK2/PI3K/AKT axis was found to contribute to the development and outcome of HSCC.
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Affiliation(s)
- Ji Song
- Department of Otorhinolaryngology, The University-Town Hospital of Chongqing Medical UniversityChongqing, China
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical UniversityNo. 1 Youyi Road, Yuzhong District, Chongqing, China
| | - Yanshi Li
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical UniversityNo. 1 Youyi Road, Yuzhong District, Chongqing, China
| | - Tao Lu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical UniversityNo. 1 Youyi Road, Yuzhong District, Chongqing, China
| | - Min Pan
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical UniversityNo. 1 Youyi Road, Yuzhong District, Chongqing, China
| | - Zhihai Wang
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical UniversityNo. 1 Youyi Road, Yuzhong District, Chongqing, China
| | - Chuan Liu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical UniversityNo. 1 Youyi Road, Yuzhong District, Chongqing, China
| | - Yang Liao
- Department of Otorhinolaryngology, The University-Town Hospital of Chongqing Medical UniversityChongqing, China
| | - Guohua Hu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical UniversityNo. 1 Youyi Road, Yuzhong District, Chongqing, China
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Wang J, Wu H, Pan M, Liu Z, Han L, Huang Z, Deng H. Bilayer tetragonal AlN nanosheets as potential cathodes for Li-O 2 batteries. Phys Chem Chem Phys 2023; 25:15030-15039. [PMID: 37218179 DOI: 10.1039/d2cp05794h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Li-O2 batteries are considered promising electrochemical energy storage devices due to their high specific capacity and low cost. However, this technology currently suffers from two serious problems: low round-trip efficiency and slow reaction dynamics at the cathode. Solving these problems requires designing novel catalysis materials. In this study, a bilayer tetragonal AlN nanosheet as the catalyst is theoretically designed for the Li-O2 electrochemical system, and the discharge/charge process is simulated by a first-principles approach. It is found that the reaction path leading to Li4O2 is energetically more favored than the path to form a Li4O4 cluster on an AlN nanosheet. The theoretical open-circuit voltage for Li4O2 is 2.70 V, which is only 0.14 V lower than the formation of Li4O4. Notably, the discharge overpotential for forming Li4O2 on the AlN nanosheet is only 0.57 V, and the corresponding charge overpotential is as low as 0.21 V. A low charge/discharge overpotential can effectively solve the problems of low round-trip efficiency and slow reaction kinetics. The decomposition pathways of the final discharge product Li4O2 and the intermediate product Li2O2 are also investigated, and the decomposition barriers are 1.41 eV and 1.45 eV, respectively. Our work shows that bilayer tetragonal AlN nanosheets are promising catalysts for Li-O2 batteries.
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Affiliation(s)
- Jiaming Wang
- School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China.
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu, China
| | - Hao Wu
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu, China
| | - Min Pan
- School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Zhixiao Liu
- College of Materials Science and Engineering, Hunan University, Changsha 410082, China.
| | - Lei Han
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Zheng Huang
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu, China
| | - Huiqiu Deng
- School of Physics and Electronics, Hunan University, Changsha 410082, China
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Yang L, Pan M, Sun J, Cui Y, Dong J, Yang J, Ji S, Tao J, Ding C. Short-term responses of macroinvertebrate assemblages to the "ten-year fishing ban" in the largest highland lake of the Yangtze basin. J Environ Manage 2023; 343:118160. [PMID: 37229854 DOI: 10.1016/j.jenvman.2023.118160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/21/2023] [Accepted: 05/11/2023] [Indexed: 05/27/2023]
Abstract
The rapid decline of freshwater biodiversity caused by overfishing has led to the implementation of a series of conservation measures, including fishing bans. However, existing studies have mostly focused on the effects of fishing bans on economically important species, while impacts on freshwater macroinvertebrates in lake ecosystems have been rarely studied. This study used a before-and-after methodology to determine the short-term effects of the "ten-year fishing ban" on the macroinvertebrates of the Dianchi Lake, the largest highland freshwater lake in the upper Yangtze basin, between 2015 and 2022. Following the fishing ban, the overall macroinvertebrate species richness (median [interquartile]) across sites increased from 4 [2-6] to 5 [4-7]. The total density increased from 128 [80-272] to 212 [140-325] n/m2. The median biomass increased from 0.18 [0.08-0.41] to 0.51 [0.26-2.36] g/m2. In particular, the Chironomidae density in the offshore sites increased from 16.00 [0.00-32.00] to 33.30 [16.00-48.00] n/m2, and the biomass increased from 0.03 [0.00-0.09] to 0.16 [0.07-0.22] g/m2. Within the inshore sites, the aquatic insect density increased from 4 [1.33-15.33] to 56 [22.00-86.67] n/m2. The Malacostraca density increased from 34.67 [11.67-95.33] to 110 [53.33-223.33] n/m2, and the biomass increased from 0.43 [0.11-1.00] to 1.48 [0.50-2.00] g/m2. Two endangered Margarya species were rediscovered at multiple sites compared to the pre-fishing ban period. A significant change in macroinvertebrate community structure across the lake was observed, which can be largely attributed to the fishing ban. The immediate increase in species richness, density, and biomass of most macroinvertebrate species suggests a combination of effects from both reduced exploitation pressure and lessened disturbances on lake habitats. The findings indicate that the fishing ban is beneficial for the recovery of most macroinvertebrate species in freshwater lakes.
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Affiliation(s)
- Lu Yang
- Yunnan Key Laboratory of International Rivers and Transboundary Eco-security, Yunnan University, Kunming, 650091, China; Institute of International Rivers and Eco-security, Yunnan University, Kunming, 650091, China
| | - Min Pan
- Kunming Dianchi and Plateau Lakes Institute, Kunming, 650228, China; Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming, 650228, China.
| | - Jingrui Sun
- Yunnan Key Laboratory of International Rivers and Transboundary Eco-security, Yunnan University, Kunming, 650091, China; Institute of International Rivers and Eco-security, Yunnan University, Kunming, 650091, China
| | - Yongde Cui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Jinyan Dong
- Kunming Dianchi and Plateau Lakes Institute, Kunming, 650228, China; Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming, 650228, China
| | - Jiaojiao Yang
- Kunming Dianchi and Plateau Lakes Institute, Kunming, 650228, China; Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming, 650228, China
| | - Songhao Ji
- Yunnan Key Laboratory of International Rivers and Transboundary Eco-security, Yunnan University, Kunming, 650091, China; Institute of International Rivers and Eco-security, Yunnan University, Kunming, 650091, China
| | - Juan Tao
- Yunnan Key Laboratory of International Rivers and Transboundary Eco-security, Yunnan University, Kunming, 650091, China; Institute of International Rivers and Eco-security, Yunnan University, Kunming, 650091, China
| | - Chengzhi Ding
- Yunnan Key Laboratory of International Rivers and Transboundary Eco-security, Yunnan University, Kunming, 650091, China; Institute of International Rivers and Eco-security, Yunnan University, Kunming, 650091, China.
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Xu G, Zhang Y, Yang T, Wu H, Lorke A, Pan M, Xiao B, Wu X. Effect of light-mediated variations of colony morphology on the buoyancy regulation of Microcystis colonies. Water Res 2023; 235:119839. [PMID: 36924554 DOI: 10.1016/j.watres.2023.119839] [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: 12/25/2022] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
Light is an important driver of algal growth and for the formation of surface blooms. Long-term buoyancy maintenance of Microcystis colonies is crucial for their aggregation at the water surface and the following algal bloom development. However, the effect of light-mediated variations of colony morphology on the buoyancy regulation of Microcystis colonies remains unclear. In this study, growth parameters, colony morphology and floatation/sinking performance of Microcystis colonies were determined to explore how variations in colony morphology influence the buoyancy of colonies under different light conditions. We quantified colony compactness through the cell volume to colony volume ratio (VR) and found different responses of colony size and VR under different light intensities. Microcystis colonies with higher VR could stay longer at the water surface under low light conditions, which was beneficial for the long-term growth and buoyancy maintenance. However, increased colony size and decreased compactness were observed at a later growth stage under relatively higher light intensity (i.e., >108 µmol photons m-2 s-1). Interestingly, we found a counterintuitive negative correlation between colony size and buoyancy of Microcystis under high light intensity. Additionally, we found that the influence of colony morphology on buoyancy was stronger at high light intensity. These results indicate that light could regulate the buoyancy via colonial morphology and that the role of colony morphology in buoyancy regulation needs to be accounted for in further studies under variable environmental conditions.
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Affiliation(s)
- Gang Xu
- Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanxue Zhang
- Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tiantian Yang
- Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Huaming Wu
- Institute for Environmental Sciences, University of Kaiserslautern-Landau, Landau 76829, Germany
| | - Andreas Lorke
- Institute for Environmental Sciences, University of Kaiserslautern-Landau, Landau 76829, Germany
| | - Min Pan
- Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming 650228, China; Kunming Dianchi & Plateau Lakes Institute, Kunming 650228, China
| | - Bangding Xiao
- Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming 650228, China
| | - Xingqiang Wu
- Key Laboratory of Algal Biology of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; Dianchi Lake Ecosystem Observation and Research Station of Yunnan Province, Kunming 650228, China.
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Wang M, Pan M, Li Y, Lu T, Wang Z, Liu C, Hu G. ANXA6/TRPV2 axis promotes lymphatic metastasis in head and neck squamous cell carcinoma by inducing autophagy. Exp Hematol Oncol 2023; 12:43. [PMID: 37138336 PMCID: PMC10155388 DOI: 10.1186/s40164-023-00406-1] [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: 10/02/2022] [Accepted: 04/17/2023] [Indexed: 05/05/2023] Open
Abstract
BACKGROUND Head and neck squamous cell carcinoma (HNSCC) is highly aggressive with a significant tropism of lymph nodes, which restricts treatment options and negatively impacts patient outcomes. Although progress has been made in understanding the molecular mechanisms underlying lymphatic metastasis (LM), these mechanisms remain elusive. ANXA6 is a scaffold protein that participates in tumor pathogenesis and autophagy regulation; however, how ANXA6 affects autophagy and LM in HNSCC cells remains unknown. METHODS RNA sequencing was performed on HNSCC clinical specimens with or without metastasis as well as on The Cancer Genome Atlas dataset to investigate ANXA6 expression and survival. Both in vitro and in vivo studies were performed to investigate the role of ANXA6 in the regulation of LM in HNSCC. The molecular mechanism by which ANXA6 interacts with TRPV2 was examined at the molecular level. RESULTS ANXA6 expression was significantly upregulated in HNSCC patients with LM and higher expression was associated with poor prognosis. ANXA6 overexpression promoted the proliferation and mobility of FaDu and SCC15 cells in vitro; however, ANXA6 knockdown retarded LM in HNSCC in vivo. ANXA6 induced autophagy by inhibiting the AKT/mTOR signaling pathway in HNSCC, thereby regulating the metastatic capability of the disease. Furthermore, ANXA6 expression positively correlated with TRPV2 expression both in vitro and in vivo. Lastly, TRPV2 inhibition reversed ANXA6-induced autophagy and LM. CONCLUSIONS These results indicate that the ANXA6/TRPV2 axis facilitates LM in HNSCC by stimulating autophagy. This study provides a theoretical basis for investigating the ANXA6/TRPV2 axis as a potential target for the treatment of HNSCC, as well as a biomarker for predicting LM.
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Affiliation(s)
- Min Wang
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Min Pan
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yanshi Li
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Tao Lu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Zhihai Wang
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Chuan Liu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Guohua Hu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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Pan M, Li Z, Xu J, Lei Y, Shu C, Lao W, Chen Y, Li X, Liao H, Luo Q, Li X. Release of Interface Confined Water Significantly Improves Dentin Bonding. J Dent Res 2023:220345231161006. [PMID: 37029657 DOI: 10.1177/00220345231161006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023] Open
Abstract
Water residue and replacement difficulty cause insufficient adhesive infiltration in demineralized dentin matrix (DDM), which produces a defective hybrid layer and thus a bonding durability problem, severely plaguing adhesive dentistry for decades. In this study, we propose that the unique properties of a highly hydrated interface of the porous DDM can give rise to 1 new type of interface, confined liquid water, which accounts for most of the residue water and may be the main cause of insufficient infiltration. To prove our hypothesis, 3 metal ions with increasing binding affinity and complex stability (Na+, Ca2+, and Cu2+) were introduced respectively to coordinate negatively charged groups such as -PO43-, -COO- abundant in the DDM interface. Strong chelation of Ca2+ and Cu2+ rapidly released the confined water, significantly improving penetration of hydrophobic adhesive monomers, while Na+ had little effect. A significant decrease of defects in the hybrid layer and a much decreased modulus gap between the hybrid layer and the adhesive layer greatly optimized the microstructure and micromechanical properties of the tooth-resin bonding interface, thus improving the effectiveness and durability of dentin bonding substantially. This study paves the way for a solution to the core scientific issue of contemporary adhesive dentistry: water residue and replacement in dentin bonding, both theoretically and practically.
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Affiliation(s)
- M Pan
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, P. R. China
- Clinical Research Center for Oral Disease of Zhejiang Province, Hangzhou, P. R. China
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, P. R. China
| | - Z Li
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, P. R. China
- Clinical Research Center for Oral Disease of Zhejiang Province, Hangzhou, P. R. China
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, P. R. China
| | - J Xu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, P. R. China
- Clinical Research Center for Oral Disease of Zhejiang Province, Hangzhou, P. R. China
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, P. R. China
| | - Y Lei
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, P. R. China
- Clinical Research Center for Oral Disease of Zhejiang Province, Hangzhou, P. R. China
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, P. R. China
| | - C Shu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, P. R. China
- Clinical Research Center for Oral Disease of Zhejiang Province, Hangzhou, P. R. China
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, P. R. China
| | - W Lao
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, P. R. China
- Clinical Research Center for Oral Disease of Zhejiang Province, Hangzhou, P. R. China
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, P. R. China
| | - Y Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, P. R. China
- Clinical Research Center for Oral Disease of Zhejiang Province, Hangzhou, P. R. China
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, P. R. China
| | - X Li
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, P. R. China
- Clinical Research Center for Oral Disease of Zhejiang Province, Hangzhou, P. R. China
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, P. R. China
| | - H Liao
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, College of Stomatology, Guangxi Medical University, Guilin, P. R. China
| | - Q Luo
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, P. R. China
- Clinical Research Center for Oral Disease of Zhejiang Province, Hangzhou, P. R. China
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, P. R. China
| | - X Li
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, P. R. China
- Clinical Research Center for Oral Disease of Zhejiang Province, Hangzhou, P. R. China
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, P. R. China
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Sun Y, Liu Z, Fu Y, Yang Y, Lu J, Pan M, Wen T, Xie X, Bai Y, Ge Q. Single-cell multi-omics sequencing and its application in tumor heterogeneity. Brief Funct Genomics 2023:7109963. [PMID: 37078714 DOI: 10.1093/bfgp/elad009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 02/20/2023] [Accepted: 03/09/2023] [Indexed: 04/21/2023] Open
Abstract
In recent years, the emergence and development of single-cell sequencing technologies have provided unprecedented opportunities to analyze deoxyribonucleic acid, ribonucleic acid and proteins at single-cell resolution. The advancements and reduced costs of high-throughput technologies allow for parallel sequencing of multiple molecular layers from a single cell, providing a comprehensive insight into the biological state and behavioral mechanisms of cells through the integration of genomics, transcriptomics, epigenomics and proteomics information. Researchers are actively working to further improve the cost-effectiveness, stability and high-throughput capabilities of single-cell multi-omics sequencing technologies and exploring their potential in precision medicine through clinical diagnostics. This review aims to survey the cutting-edge advancements in single-cell multi-omics sequencing, summarizing the representative technologies and their applications in profiling complex diseases, with a particular focus on tumors.
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Affiliation(s)
- Yuqing Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China
| | - Zhiyu Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China
| | - Yue Fu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China
| | - Yuwei Yang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China
| | - Junru Lu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China
| | - Min Pan
- School of Medicine, Southeast University, Nanjing 210097, China
| | - Tian Wen
- Jiangsu Provincial Center for Disease Control and Prevention, NHC Key laboratoryof Enteric Pathogenic Microbiology, Nanjing, 210029, China
| | - Xueying Xie
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China
| | - Yunfei Bai
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China
| | - Qinyu Ge
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China
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Schaenman J, Weigt S, Pan M, Zhou X, Elashoff D, Shino M, Reynolds J, Budev M, Shah P, Singer L, Snyder L, Palmer S, Belperio J. Peripheral Blood Cytokines Predict Primary Graft Dysfunction after Lung Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Liu L, Chen Q, Pan M, Yang Y. Roles of Anatomical Abnormalities in Localized and Diffuse Chronic Rhinosinusitis. Indian J Otolaryngol Head Neck Surg 2023; 75:966-972. [PMID: 37206825 PMCID: PMC10188665 DOI: 10.1007/s12070-022-03370-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 12/05/2022] [Indexed: 02/12/2023] Open
Abstract
Background This study aimed to examine the roles of anatomical variation in localized and diffuse chronic rhinosinusitis [LCRS and DCRS]) . Methods A database was analyzed retrospectively on patients hospitalized in the Department of Otorhinolaryngology of our university hospital from 2017 to 2020. A total of 281 patients were included and divided into three categories: patients with LCRS, patients with DCRS, and a normal control group. The frequency of anatomical variation, the demographic information, disease type (with or without polyps), symptom visual analogue scale (VAS) scores and Lund-Mackay (L-M) scores were calculated and compared. Results Anatomical variants were observed more frequently in LCRS than DCRS (P < 0.05). The frequency of variation was higher in the LCRSwNP group than the DCRSwNP group (P < 0.05), and higher in the LCRSsNP group than the DCRSsNP group (P < 0.05). The L-M scores for patients with DCRS with nasal polyps were significantly higher (14.96 ± 6.15) than those of patients with DCRS without nasal polyps (6.80 ± 5.00) and also significantly higher (3.78 ± 2.07) than those of patients with LCRS with nasal polyps (2.63 ± 1.12; P < 0.05). A poor correlation was observed between the severity of symptoms and the performance of CT scans in CRS (R = 0.29, P < 0.01). Conclusion Anatomical variants were common in CRS, and possibly correlated with LCRS but not with DCRS. The frequency of anatomical variation is not associated with the occurrence of polyps. CT could reflect the severity of disease symptoms to some extent.
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Affiliation(s)
- Lei Liu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qian Chen
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Min Pan
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yucheng Yang
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Otolaryngology, The First Affiliated Hospital, Chongqing Medical University, No.1 Youyi Road, Yuzhong District, 400016 Chongqing, China
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Fu F, Chen C, Du K, Li LS, Li R, Lei TY, Deng Q, Wang D, Yu QX, Yang X, Han J, Pan M, Zhen L, Zhang LN, Li J, Li FT, Zhang YL, Jing XY, Li FC, Li DZ, Liao C. Ndufa4 Regulates the Proliferation and Apoptosis of Neurons via miR-145a-5p/Homer1/Ccnd2. Mol Neurobiol 2023; 60:2986-3003. [PMID: 36763283 PMCID: PMC10122635 DOI: 10.1007/s12035-023-03239-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 01/09/2023] [Indexed: 02/11/2023]
Abstract
The Dandy-Walker malformation (DWM) is characterized by neuron dysregulation in embryonic development; however, the regulatory mechanisms associated with it are unclear. This study aimed to investigate the role of NADH dehydrogenase 1 alpha subcomplex 4 (NDUFA4) in regulating downstream signaling cascades and neuronal proliferation and apoptosis. Ndufa4 overexpression promoted the proliferation of neurons and inhibited their apoptosis in vitro, which underwent reverse regulation by the Ndufa4 short hairpin RNAs. Ndufa4-knockout (KO) mice showed abnormal histological alterations in the brain tissue, in addition to impaired spatial learning capacity and exploratory activity. Ndufa4 depletion altered the microRNA expressional profiles of the cerebellum: Ndufa4 inhibited miR-145a-5p expression both in the cerebellum and neurons. miR-145a-5p inhibited the proliferation of neurons and promoted their apoptosis. Ndufa4 promoted and miR-145a-5p inhibited the expression of human homer protein homolog 1 and cyclin D2 in neurons. Thus, Ndufa4 promotes the proliferation of neurons and inhibits their apoptosis by inhibiting miR-145a-5p, which directly targets and inhibits the untranslated regions of Homer1 and Ccnd2 expression.
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Affiliation(s)
- Fang Fu
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Chen Chen
- Department of Respirator, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Kun Du
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Lu-Shan Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Ru Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Ting-Ying Lei
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Qiong Deng
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Dan Wang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Qiu-Xia Yu
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Xin Yang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Jin Han
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Min Pan
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Li Zhen
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Li-Na Zhang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Jian Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Fa-Tao Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Yong-Ling Zhang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Xiang-Yi Jing
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Fu-Cheng Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Dong-Zhi Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Can Liao
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China.
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Yuan Y, Pan M, Shen L, Liu Y, Zhu Q, Hong J, Ye J, Tan J. Effect of Associated Bacteria GD1 on the Low-Temperature Adaptability of Bursaphelenchus xylophilus Based on RNA-Seq and RNAi. Microorganisms 2023; 11:microorganisms11020430. [PMID: 36838395 PMCID: PMC9961929 DOI: 10.3390/microorganisms11020430] [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: 01/16/2023] [Revised: 02/02/2023] [Accepted: 02/06/2023] [Indexed: 02/10/2023] Open
Abstract
To explore the effect of associated bacteria on the low-temperature adaptability of pinewood nematodes (PWNs), transcriptome sequencing (RNA-seq) of PWN AH23 treated with the associated bacterial strain Bacillus cereus GD1 was carried out with reference to the whole PWN genome. Bioinformatic software was utilized to analyze the differentially expressed genes (DEGs). This study was based on the analysis of DEGs to verify the function of daf-11 by RNAi. The results showed that there were 439 DEGs between AH23 treated with GD1 and those treated with ddH2O at 10 °C. There were 207 pathways annotated in the KEGG database and 48 terms annotated in the GO database. It was found that after RNAi of daf-11, the survival rate of PWNs decreased significantly at 10 °C, and fecundity decreased significantly at 15 °C. It can be concluded that the associated bacteria GD1 can enhance the expression of genes related to PWN low-temperature adaptation and improve their adaptability to low temperatures.
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Lu J, Sheng Y, Qian W, Pan M, Zhao X, Ge Q. scRNA-seq data analysis method to improve analysis performance. IET Nanobiotechnol 2023; 17:246-256. [PMID: 36727937 DOI: 10.1049/nbt2.12115] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/28/2022] [Accepted: 12/30/2022] [Indexed: 02/03/2023] Open
Abstract
With the development of single-cell RNA sequencing technology (scRNA-seq), we have the ability to study biological questions at the level of the individual cell transcriptome. Nowadays, many analysis tools, specifically suitable for single-cell RNA sequencing data, have been developed. In this review, the currently commonly used scRNA-seq protocols are discussed. The upstream processing flow pipeline of scRNA-seq data, including goals and popular tools for reads mapping and expression quantification, quality control, normalization, imputation, and batch effect removal is also introduced. Finally, methods to evaluate these tools in both cellular and genetic dimensions, clustering and differential expression analysis are presented.
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Affiliation(s)
- Junru Lu
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing, China
| | - Yuqi Sheng
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing, China
| | - Weiheng Qian
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing, China
| | - Min Pan
- School of Medicine, Southeast University, Nanjing, China
| | - Xiangwei Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing, China
| | - Qinyu Ge
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing, China
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