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  1. Article ; Online: The role of serum acylcarnitine profiling for the detection of multiple solid tumors in humans

    Longjunyu Wu / Chunhua Ye / Qingchun Yao / Qianqian Li / Chunyan Zhang / Yuandong Li

    Heliyon, Vol 10, Iss 1, Pp e23867- (2024)

    1481  

    Abstract: Metabolic reprogramming is an essential hallmark of cancer. Several studies have reported the dysregulation of acylcarnitine (ACar) metabolism in tumor cells, suggesting that changes in the blood ACar may be related to tumor growth. Accordingly, this ... ...

    Abstract Metabolic reprogramming is an essential hallmark of cancer. Several studies have reported the dysregulation of acylcarnitine (ACar) metabolism in tumor cells, suggesting that changes in the blood ACar may be related to tumor growth. Accordingly, this study aimed to understand the alteration of serum ACar profiles in various solid tumors and explore the potential of differential serum ACars as diagnostic biomarkers. A series of 69 relatively abundant ACars were identified via untargeted analysis. Then, targeted metabolomics was used to describe the metabolic alterations in ACars between normal controls and patients with six types of solid tumors. The results suggested that changes in ACars correlated with their carbon chain length and saturation. The six tumor types had highly similar ACar metabolic profiles, indicating similar fatty acid oxidation (FAO) metabolic pathways. Moreover, the receiver operating curve analysis of differential ACars showed that 16 ACars (C8–C14) had high diagnostic capability towards the studied solid tumors. Specifically, the area under the curve of ACar 10:2 isomer2 and ACar 12:2 isomer2 was greater than 0.95. In conclusion, the marked decrease in the levels of medium- and long-chain ACars (C8–C18) in the six solid tumors suggests that they may have similar FAO-based metabolic pathways, which could afford a common target for cancer therapy. Additionally, 16 ACars (C8–C14) were identified as potential biomarkers for diagnosing six types of solid tumors.
    Keywords Solid tumors ; Fatty acid oxidation ; Acylcarnitines ; Metabolic reprogramming ; Metabolomics ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 570
    Language English
    Publishing date 2024-01-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article: A Nomogram-Based Risk Classification System Predicting the Overall Survival of Childhood with Clear Cell Sarcoma of the Kidney Based on the SEER Database.

    Ding, Jingchao / Yao, Huanyin / Chen, Qingchun

    Evidence-based complementary and alternative medicine : eCAM

    2022  Volume 2022, Page(s) 3784300

    Abstract: Objective: Clear cell sarcoma of the kidney (CCSK) is a lethal pediatric renal malignancy with poor prognosis. A prognostic nomogram needs to be established for overall survival (OS) prediction of patients with CCSK.: Methods: Eligible 2588 CCSK ... ...

    Abstract Objective: Clear cell sarcoma of the kidney (CCSK) is a lethal pediatric renal malignancy with poor prognosis. A prognostic nomogram needs to be established for overall survival (OS) prediction of patients with CCSK.
    Methods: Eligible 2588 CCSK patients (age 0-19) diagnosed between 2000 and 2017 were extracted from the Surveillance, Epidemiology, and End Results (SEER) database. Patients were randomized into training and validation cohorts (7 : 3). Independent prognostic factors were identified by univariate and multifactorial Cox regression analyses and used to construct a nomogram. Receiver operating characteristics (ROC) analysis, calibration curves, and decision curve analysis (DCA) were used to validate the nomogram. Moreover, a risk classification system was established based on the risk scores of the nomogram.
    Results: Cox analyses revealed that age, combined stage, and origin were most significant prognostic factors. Based on these prognostic factors, a nomogram was established for predicting 3- and 5-year OS of patients with CCSK. The area under the ROC curve (AUC) of 3- and 5-year OS was 0.733 and 0.728 in the training cohort, corresponding to 0.69 and 0.674 in the validation cohort. The C-index of calibration curves in the training and validation cohorts was 0.724 and 0.686. DCAs indicated the clinical utility of this nomogram. A risk classification system stratified CCSK patients into three different risk cohorts. The OS time of low-, intermediate-, and high-risk patients was 76, 68, and 65 months in the training cohort, corresponding to 69.5, 66, and 72 months in the validation cohort.
    Conclusion: A nomogram-based risk classification system has high accuracy for the prognostic prediction of CCSK.
    Language English
    Publishing date 2022-08-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2171158-6
    ISSN 1741-4288 ; 1741-427X
    ISSN (online) 1741-4288
    ISSN 1741-427X
    DOI 10.1155/2022/3784300
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Methylosome protein 50 is necessary for oogenesis in medaka.

    Yao, Qiting / Yang, Qing / Li, Zhenyu / Wu, Fan / Duan, Shi / Cao, Mengxi / Chen, Xinhua / Zhong, Xueping / Zhou, Qingchun / Zhao, Haobin

    Comparative biochemistry and physiology. Part D, Genomics & proteomics

    2024  Volume 50, Page(s) 101220

    Abstract: Methylosome protein 50 (Mep50) functions as a partner to protein arginine methyltransferase 5. MEP50 serves as a coactivator for both the androgen receptor and estrogen receptor in humans. Mep50 plays a crucial role in the development of germ cells in ... ...

    Abstract Methylosome protein 50 (Mep50) functions as a partner to protein arginine methyltransferase 5. MEP50 serves as a coactivator for both the androgen receptor and estrogen receptor in humans. Mep50 plays a crucial role in the development of germ cells in Drosophila. The precise role of Mep50 in oogenesis remains unclear in vertebrates. The objective of this study was to investigate the role of Mep50 in oogenesis in medaka fish. Disruption of Mep50 resulted in impaired oogenesis and the formation of multiple oocyte follicles in medaka. RNA-seq analysis revealed significant differential gene expression in the mutant ovary, with 4542 genes up-regulated and 1264 genes down-regulated. The regulated genes were found to be enriched in cellular matrices and ECM-receptor interaction, the Notch signaling pathway, the PI3K-Akt signaling pathway, the MAPK signaling pathway, the Hippo signaling pathway, and the Jak-Stat pathway, among others. In addition, the genes related to the hypothalamus-pituitary-gonad axis, steroid metabolism, and IGF system were impacted. Furthermore, the mutation of mep50 caused significant alterations in alternative splicing of pre-mRNA in ovarian cells. Quantitative RT-PCR results validated the findings from RNA-seq analysis in the specific genes, including akt2, map3k5, yap1, fshr, cyp17a, igf1, ythdc2, cdk6, and col1, among others. The findings of this study demonstrate that Mep50 plays a crucial role in oogenesis, participating in a diverse range of biological processes such as steroid metabolism, cell matrix regulation, and signal pathways. This may be achieved through the regulation of gene expression via mRNA splicing in medaka ovarian cells.
    Language English
    Publishing date 2024-02-28
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2212119-5
    ISSN 1878-0407 ; 1744-117X
    ISSN (online) 1878-0407
    ISSN 1744-117X
    DOI 10.1016/j.cbd.2024.101220
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: The role of serum acylcarnitine profiling for the detection of multiple solid tumors in humans.

    Wu, Longjunyu / Ye, Chunhua / Yao, Qingchun / Li, Qianqian / Zhang, Chunyan / Li, Yuandong

    Heliyon

    2023  Volume 10, Issue 1, Page(s) e23867

    Abstract: Metabolic reprogramming is an essential hallmark of cancer. Several studies have reported the dysregulation of acylcarnitine (ACar) metabolism in tumor cells, suggesting that changes in the blood ACar may be related to tumor growth. Accordingly, this ... ...

    Abstract Metabolic reprogramming is an essential hallmark of cancer. Several studies have reported the dysregulation of acylcarnitine (ACar) metabolism in tumor cells, suggesting that changes in the blood ACar may be related to tumor growth. Accordingly, this study aimed to understand the alteration of serum ACar profiles in various solid tumors and explore the potential of differential serum ACars as diagnostic biomarkers. A series of 69 relatively abundant ACars were identified via untargeted analysis. Then, targeted metabolomics was used to describe the metabolic alterations in ACars between normal controls and patients with six types of solid tumors. The results suggested that changes in ACars correlated with their carbon chain length and saturation. The six tumor types had highly similar ACar metabolic profiles, indicating similar fatty acid oxidation (FAO) metabolic pathways. Moreover, the receiver operating curve analysis of differential ACars showed that 16 ACars (C8-C14) had high diagnostic capability towards the studied solid tumors. Specifically, the area under the curve of ACar 10:2 isomer2 and ACar 12:2 isomer2 was greater than 0.95. In conclusion, the marked decrease in the levels of medium- and long-chain ACars (C8-C18) in the six solid tumors suggests that they may have similar FAO-based metabolic pathways, which could afford a common target for cancer therapy. Additionally, 16 ACars (C8-C14) were identified as potential biomarkers for diagnosing six types of solid tumors.
    Language English
    Publishing date 2023-12-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e23867
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Label-Free Electrochemical Immunosensor for Ultrasensitive Detection of Carbohydrate Antigen 125 Based on Antibody-Immobilized Biocompatible MOF-808/CNT.

    Biswas, Sudip / Lan, Qingchun / Xie, Yao / Sun, Xin / Wang, Yang

    ACS applied materials & interfaces

    2021  Volume 13, Issue 2, Page(s) 3295–3302

    Abstract: In this work, a nanocomposite of Zr-trimesic acid MOF (MOF-808) with carbon nanotube (CNT) was synthesized through an in situ formation of MOF-808 on the activated CNT. The synthesized materials were characterized by powder X-ray diffraction, ... ...

    Abstract In this work, a nanocomposite of Zr-trimesic acid MOF (MOF-808) with carbon nanotube (CNT) was synthesized through an in situ formation of MOF-808 on the activated CNT. The synthesized materials were characterized by powder X-ray diffraction, transmission electron microscopy, X-ray photoluminescence spectroscopy, Brunauer-Emmett-Teller, Fourier transform infrared spectroscopy, and Raman spectroscopy. The protein compatible nature with high surface area and electrocatalytic ability of MOF-808 was utilized to construct an immunosensor for ultra low-level detection of the ovarian cancer biomarker, carbohydrate antigen 125 (CA 125). The mutual benefit of each constituent of the MOF-808/CNT composite was capable of producing highly enhanced electrochemical properties. A glassy carbon electrode modified with MOF-808/CNT was used as a platform to fabricate a label-free electrochemical immunosensor. The antibody binding sites of MOF-808/CNT were enriched by functionalization with streptavidin. The immunosensor exhibited two linear determination ranges of 0.001-0.1 and 0.1-30 ng·mL
    MeSH term(s) Antibodies, Immobilized/chemistry ; Biosensing Techniques/methods ; CA-125 Antigen/blood ; Electrochemical Techniques/methods ; Electrodes ; Humans ; Immunoassay/methods ; Limit of Detection ; Metal-Organic Frameworks/chemistry ; Nanotubes, Carbon/chemistry ; Neoplasms/blood
    Chemical Substances Antibodies, Immobilized ; CA-125 Antigen ; Metal-Organic Frameworks ; Nanotubes, Carbon
    Language English
    Publishing date 2021-01-05
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.0c14946
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Neutrophil Targeting Platform Reduces Neutrophil Extracellular Traps for Improved Traumatic Brain Injury and Stroke Theranostics.

    Mu, Qingchun / Yao, Kai / Syeda, Madiha Zahra / Wan, Jinlong / Cheng, Qian / You, Zhen / Sun, Rui / Zhang, Yufei / Zhang, Huamiao / Lu, Yuting / Luo, Zhicheng / Li, Yang / Liu, Fuyao / Liu, Huiping / Zou, Xinyu / Zhu, Yanfen / Peng, Kesong / Huang, Chunming / Chen, Xiaoyuan /
    Tang, Longguang

    Advanced science (Weinheim, Baden-Wurttemberg, Germany)

    2024  , Page(s) e2308719

    Abstract: Traumatic brain injuries (TBI) and stroke are major causes of morbidity and mortality in both developing and developed countries. The complex and heterogeneous pathophysiology of TBI and cerebral ischemia-reperfusion injury (CIRI), in addition to the ... ...

    Abstract Traumatic brain injuries (TBI) and stroke are major causes of morbidity and mortality in both developing and developed countries. The complex and heterogeneous pathophysiology of TBI and cerebral ischemia-reperfusion injury (CIRI), in addition to the blood-brain barrier (BBB) resistance, is a major barrier to the advancement of diagnostics and therapeutics. Clinical data showed that the severity of TBI and stroke is positively correlated with the number of neutrophils in peripheral blood and brain injury sites. Furthermore, neutrophil extracellular traps (NETs) released by neutrophils correlate with worse TBI and stroke outcomes by impairing revascularization and vascular remodeling. Therefore, targeting neutrophils to deliver NETs inhibitors to brain injury sites and reduce the formation of NETs can be an optimal strategy for TBI and stroke therapy. Herein, the study designs and synthesizes a reactive oxygen species (ROS)-responsive neutrophil-targeting delivery system loaded with peptidyl arginine deiminase 4 (PAD4) inhibitor, GSK484, to prevent the formation of NETs in brain injury sites, which significantly inhibited neuroinflammation and improved neurological deficits, and improved the survival rate of TBI and CIRI. This strategy may provide a groundwork for the development of targeted theranostics of TBI and stroke.
    Language English
    Publishing date 2024-03-23
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2808093-2
    ISSN 2198-3844 ; 2198-3844
    ISSN (online) 2198-3844
    ISSN 2198-3844
    DOI 10.1002/advs.202308719
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Towards development of a high-strength stainless Mg alloy with Al-assisted growth of passive film.

    Zhu, Qingchun / Li, Yangxin / Cao, Fuyong / Qiu, Dong / Yang, Yao / Wang, Jingya / Zhang, Huan / Ying, Tao / Ding, Wenjiang / Zeng, Xiaoqin

    Nature communications

    2022  Volume 13, Issue 1, Page(s) 5838

    Abstract: Magnesium alloys with high strength and excellent corrosion resistance are always sought-after in light-weighting structural components for automotive and aerospace applications. However, for most magnesium alloys that have a high specific strength, they ...

    Abstract Magnesium alloys with high strength and excellent corrosion resistance are always sought-after in light-weighting structural components for automotive and aerospace applications. However, for most magnesium alloys that have a high specific strength, they usually have an inferior corrosion resistance and vice versa. In this work, we successfully develop a Mg-11Y-1Al (wt. %) alloy through conventional casting, solution treatment followed by extrusion. The overall properties of this alloy feature with a corrosion rate lower than 0.2 mm y
    Language English
    Publishing date 2022-10-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-022-33480-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: A visible light/heat responsive covalent organic framework for highly efficient and switchable proton conductivity.

    Chen, Yongkui / Qiu, Jikuan / Zhang, Xia-Guang / Wang, Huiyong / Yao, Wenhui / Li, Zhiyong / Xia, Qingchun / Zhu, Guangshan / Wang, Jianji

    Chemical science

    2022  Volume 13, Issue 20, Page(s) 5964–5972

    Abstract: In recent years, covalent organic frameworks (COFs) have attracted enormous interest as a new generation of proton-exchange membranes, chemical sensors and electronic devices. However, to design high proton conductivity COFs, especially those with ... ...

    Abstract In recent years, covalent organic frameworks (COFs) have attracted enormous interest as a new generation of proton-exchange membranes, chemical sensors and electronic devices. However, to design high proton conductivity COFs, especially those with stimulus responsive performance remains a great challenge. Here, the first example of a light/heat switchable COF (COF-HNU9) has been synthesized by grafting a donor-acceptor Stenhouse adduct (DASA) within the channels of a β-ketoenamine-based COF. DASA groups in the nanopores of COF-HNU9 undergo a reversible open-closed photoisomerization upon visible light irradiation and are recovered by heating. Thus, COF-HNU9 exhibits not only a remarkably high proton conductivity, but also a highly effective switching performance. Under visible light irradiation at 98% RH, the proton conductivity of COF-HNU9 increases by three orders of magnitude at 25 °C and is up to 0.02 S cm
    Language English
    Publishing date 2022-04-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 2559110-1
    ISSN 2041-6539 ; 2041-6520
    ISSN (online) 2041-6539
    ISSN 2041-6520
    DOI 10.1039/d2sc02100e
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: An integrated multi-omics approach revealed the regulation of melatonin on age-dependent mitochondrial function impair and lipid dyshomeostasis in mice hippocampus.

    Jiang, Xiaowen / Xu, Zihua / Yao, Dong / Liu, Xin / Liu, Wenwu / Wang, Nan / Li, Xiang / Diao, Yao / Zhang, Yingshi / Zhao, Qingchun

    Pharmacological research

    2022  Volume 179, Page(s) 106210

    Abstract: Melatonin can improve mitochondrial dysfunction associated with the aging process by removing active oxygen, as well as inhibiting lipid peroxidation to maintain biofilm fluidity and resist free radical attack. However, there is poor understanding of the ...

    Abstract Melatonin can improve mitochondrial dysfunction associated with the aging process by removing active oxygen, as well as inhibiting lipid peroxidation to maintain biofilm fluidity and resist free radical attack. However, there is poor understanding of the effect of melatonin on age-dependent mitochondrial function and lipid profile changes in brain. In this study, we investigated the energy metabolism of the whole body and brain of mice at 9 months, 13 months, and 25 months of continuous gastric administration of 3 mg/kg/d melatonin once per day morning for two months. In addition, we performed transcriptomic, proteomic and lipidomic analysis in the hippocampus of mice at different ages. Proteomics showed that melatonin regulated mitochondrial electron transport and leucine degradation in mouse hippocampus. Lipomics suggested that the long-chain unsaturated glycerol phospholipids in mouse hippocampus increased in an age-dependent manner, while ceramide and glycerol phospholipids decreased significantly in hippocampus of mouse chronically exposed to melatonin. The combined analysis of proteome and liposome demonstrated that Mpst, Ccsap, Hdhd5, Rpl5 and Flna were the key proteins of the network which involved in the regulation of numerous lipids. Furthermore, ultrastructure observation results illustrated that melatonin could improve the damaged mitochondrial and morphologies of 25-month-old mice hippocampus. In conclusion, we describe a mechanism that age-dependent up-regulation of long-chain unsaturated lipids is a driving risk factor for mitochondrial damage and this effect could be reversed by chronic supplement of low-dose melatonin.
    MeSH term(s) Animals ; Glycerol/metabolism ; Glycerol/pharmacology ; Hippocampus ; Lipid Peroxidation ; Melatonin/metabolism ; Melatonin/pharmacology ; Mice ; Mitochondria/metabolism ; Phospholipids ; Proteomics
    Chemical Substances Phospholipids ; Melatonin (JL5DK93RCL) ; Glycerol (PDC6A3C0OX)
    Language English
    Publishing date 2022-04-07
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1003347-6
    ISSN 1096-1186 ; 0031-6989 ; 1043-6618
    ISSN (online) 1096-1186
    ISSN 0031-6989 ; 1043-6618
    DOI 10.1016/j.phrs.2022.106210
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Monocytes augment inflammatory responses in human aortic valve interstitial cells via β

    Luo, Zichao / The, Erlinda / Zhang, Peijian / Zhai, Yufeng / Yao, Qingzhou / Ao, Lihua / Zeng, Qingchun / Fullerton, David A / Meng, Xianzhong

    Inflammation research : official journal of the European Histamine Research Society ... [et al.

    2022  Volume 71, Issue 5-6, Page(s) 681–694

    Abstract: Objective: Inflammatory infiltration in aortic valves promotes calcific aortic valve disease (CAVD) progression. While soluble extracellular matrix (ECM) proteins induce inflammatory responses in aortic valve interstitial cells (AVICs), the impact of ... ...

    Abstract Objective: Inflammatory infiltration in aortic valves promotes calcific aortic valve disease (CAVD) progression. While soluble extracellular matrix (ECM) proteins induce inflammatory responses in aortic valve interstitial cells (AVICs), the impact of monocytes on AVIC inflammatory responses is unknown. We tested the hypothesis that monocytes enhance AVIC inflammatory responses to soluble ECM protein in this study.
    Methods: Human AVICs isolated from normal aortic valves were cocultured with monocytes and stimulated with soluble ECM protein (matrilin-2). ICAM-1 and IL-6 productions were assessed. YAP and NF-κB phosphorylation were analyzed. Recombinant CD18, neutralizing antibodies against β
    Results: AVIC expression of ICAM-1 and IL-6 was markedly enhanced by the presence of monocytes, although matrilin-2 did not affect monocyte production of ICAM-1 or IL-6. Matrilin-2 up-regulated the expression of monocyte β
    Conclusion: Monocyte β
    MeSH term(s) Aortic Valve/metabolism ; CD18 Antigens/metabolism ; Cells, Cultured ; Humans ; Intercellular Adhesion Molecule-1/metabolism ; Interleukin-6/metabolism ; Matrilin Proteins/metabolism ; Monocytes/metabolism ; NF-kappa B/metabolism
    Chemical Substances CD18 Antigens ; Interleukin-6 ; Matrilin Proteins ; NF-kappa B ; Intercellular Adhesion Molecule-1 (126547-89-5)
    Language English
    Publishing date 2022-04-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1221794-3
    ISSN 1420-908X ; 1023-3830
    ISSN (online) 1420-908X
    ISSN 1023-3830
    DOI 10.1007/s00011-022-01566-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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