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Pan L, Qiu Y, Ye L, Li L, Huang Y, Mo W, Lin F. A clinical update of compound heterozygosity for hemoglobin Hekinan II [a27(B8)Glu-Asp; HBA1: c.84G>T] variant in China. Lab Med 2024:lmae023. [PMID: 38581097 DOI: 10.1093/labmed/lmae023] [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] [Indexed: 04/08/2024] Open
Abstract
BACKGROUND Hemoglobin (Hb) Hekinan II (A27; Glu-Asp) is an α-chain variant, and its interaction with the common Southeast Asian (--SEA/) α-thalassemia (α-thal) deletion is rarely reported. This study provides a clinical update of Hb Hekinan II associated with (--SEA/) α-thal. METHODS A total of 11 simple heterozygotes and 20 composite heterozygotes for Hb Hekinan II and (--SEA/) α-thal were included based on molecular diagnosis. RESULTS Hb Hekinan II exhibited a significant increase in hemoglobin, mean corpuscular volume, and mean corpuscular hemoglobin content, but a decrease in red blood cell level compared with α+ thalassemia deletion. Compared with (--SEA/) α-thal, composite heterozygotes for Hb Hekinan II and (--SEA/) α-thal showed similar erythrocyte parameters. Both heterozygotes with and without (--SEA/) α-thal showed low Hb A2 level. Hb Hekinan II showed abnormal performance in high-performance liquid chromatography but not in capillary electrophoresis. CONCLUSION Hb Hekinan II is a benign Hb variant. The heterozygotes exhibit clinically asymptomatic coinheritance with (--SEA/) α-thal having comparable hematological phenotype to simple (--SEA/) α-thal. The combination of hematological and molecular analysis helped to improve the detection rate of this rare variant.
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Affiliation(s)
- Liqiu Pan
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Guangxi Medical University, Nanning, China
| | - Yuling Qiu
- Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Nanning, China
| | - Lihua Ye
- Department of Clinical Laboratory, Laibin Maternal and Child Health Care Hospital, Laibin, China
| | - Linlin Li
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Guangxi Medical University, Nanning, China
| | - Yuanyuan Huang
- Department of Clinical Laboratory, Liuzhou Maternal and Child Health Hospital, Liuzhou, China
| | - Wuning Mo
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Guangxi Medical University, Nanning, China
| | - Faquan Lin
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Guangxi Medical University, Nanning, China
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Huang C, Yu Y, Zhai N, Mo W, Lin F. Patient with congenital factor VII deficiency undergoing brain tumor neurosurgery successfully treated with recombinant factor VIIa and fresh frozen plasma: A case report and literature review. Medicine (Baltimore) 2023; 102:e36694. [PMID: 38206717 PMCID: PMC10754550 DOI: 10.1097/md.0000000000036694] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/27/2023] [Indexed: 01/13/2024] Open
Abstract
RATIONALE Congenital factor VII deficiency is the most common among rare bleeding disorders, characterized by spontaneous or traumatic bleeding. The clinical manifestation is heterogeneous, ranging from asymptomatic phenotype to life-threatening hemorrhages. Intracranial hemorrhage is a common complication of brain tumor neurosurgery, which significantly challenges the perioperative management of patients with hemostatic defects. PATIENT CONCERNS This report presented a 55-year-old man with congenital factor VII deficiency, who had no history of hemorrhage or family history. He underwent a craniotomy for the treatment of papillary craniopharyngioma. DIAGNOSES The patient was diagnosed as papillary craniopharyngioma, factor VII deficiency, and atrial fibrillation. INTERVENTIONS To prevent bleeding, a total of 8 doses of recombinant activated factor VII and 1 dose of fresh frozen plasma were administered as the perioperative replacement therapy. This scheme was guided by a pharmacodynamic evaluation, laboratory tests, and imaging examinations. OUTCOMES No excessive surgical bleeding was observed during the 22-day treatment. The patient was found to have compound heterozygous mutations, Ala304Thr (c.910G > A) and IVS5-2A > G (c.572-2A > G), in the F7 gene. LESSONS This is the first reported case in which surgical hemorrhage secondary to brain tumor resection was successfully controlled in the presence of congenital factor VII deficiency. Perioperative coagulation state, hemostasis, and thrombosis events should be closely observed, and the interval and dosage of recombinant factor VIIa should be adjusted accordingly.
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Affiliation(s)
- Chaoyu Huang
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Nanning, Guangxi, China
| | - Yongjia Yu
- Department of Neurosurgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Ningneng Zhai
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Nanning, Guangxi, China
| | - Wuning Mo
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Nanning, Guangxi, China
| | - Faquan Lin
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Nanning, Guangxi, China
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Mo W, Jin J, Wang X, Luan W, Yan J, Long X. MicroRNA-206 Contributes to the Progression of Preeclampsia by Suppressing the Viability and Mobility of Trophocytes via the Inhibition of AGTR1. Physiol Res 2023; 72:597-606. [PMID: 38015759 PMCID: PMC10751052 DOI: 10.33549/physiolres.935131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 06/09/2023] [Indexed: 01/05/2024] Open
Abstract
The development of preeclampsia (PE) is associated with the impaired trophoblast motility. MicroRNAs (miRs) contribute to the modulation of trophoblast invasion. In the current study, the role of miR-206/AGTR1 in the TNF-alpha-induced invasion defect of trophoblasts was explored. The levels of miR-206 and ATGR1 in clinical placenta tissues were investigated. Trophoblasts were treated with TNF-alpha, and the levels of miR-206 and ATGR1 were modulated. Changes in cell viability, invasion, and inflammation in trophoblasts were detected. The level of miR-206 was induced, while the level of AGTR1 was suppressed in placenta tissues. In in vitro assays, TNF-alpha suppressed viability, induced inflammatory response, inhibited invasion, upregulated miR-206, and down-regulated AGTR1. The inhibited expression of miR-206 or the overexpression of AGTR1 counteracted the effects of TNF-alpha, indicating the key role of the miR-206/AGTR1 in progression of PE. Collectively, miR-206 suppressed viability, induced inflammatory response, and decreased invasion of trophoblasts by inhibiting AGTR1.
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Affiliation(s)
- W Mo
- Department of Obstetrics and Gynecology, The First People's Hospital of Wenling, Wenling, China.
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Qiu Y, Wei S, Hou W, Lai K, Zhu H, Li W, Li Q, Yang Z, Shu Q, Chen P, Mo W. Molecular Basis and Hematologic Phenotype of Hemoglobin H Disease Combined with Two Rare β-Globin Mutations. Hemoglobin 2023:1-4. [PMID: 37309066 DOI: 10.1080/03630269.2023.2219008] [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: 06/14/2023]
Abstract
In area where α-thalassemia and β-thalassemia are prevalent, the coinheritance of hemoglobin H disease (Hb H disease) and β-thalassemia are not uncommon and could result in complex thalassemia intermedia syndromes. In this study, we investigate the hematological and molecular characteristics of two previously undescribed cases that co-inherited Hb H disease and rare β-globin gene (HBB) mutations found in Chinese populations. Proband I was a boy with Hb H disease in association with IVS-II-5(G > C) (HBB:c0.315 + 5G > C) mutation. Proband II was a boy with a combination of Hb H and Hb Zengcheng [β114(G16) Leu > Met; HBB:c.343C > A]. Both of them had mild hypochromic microcytic anemia, and neither had ever received a blood transfusion. In both cases, the level of Hb A2 was within normal range, and no Hb H was detected, but a small amount of Hb Bart's was observed in proband I. Routine DNA analysis detected the deletional Hb H disease in both cases. IVS-II-5(G > C) (HBB:c0.315 + 5G > C) and Hb Zengcheng (HBB:c.343C > A) mutations were found by DNA sequencing of β-globin gene. The co-inheritance of Hb H disease with rare β-thalassemia may result in an atypical pattern of Hb H disease, and further investigation of rare genotypes should be conducted to avoid missed diagnosis.
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Affiliation(s)
- Yuling Qiu
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Nanning, China
- NHC Key Laboratory of Thalassemia Medicine, Guangxi Medical University, Nanning, China
| | - Shilu Wei
- Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Nanning, China
- NHC Key Laboratory of Thalassemia Medicine, Guangxi Medical University, Nanning, China
| | - Wei Hou
- Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Nanning, China
- NHC Key Laboratory of Thalassemia Medicine, Guangxi Medical University, Nanning, China
| | - Ketong Lai
- Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Nanning, China
- NHC Key Laboratory of Thalassemia Medicine, Guangxi Medical University, Nanning, China
| | - Hengying Zhu
- Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Nanning, China
- NHC Key Laboratory of Thalassemia Medicine, Guangxi Medical University, Nanning, China
| | - Wenwei Li
- Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Nanning, China
- NHC Key Laboratory of Thalassemia Medicine, Guangxi Medical University, Nanning, China
| | - Qi Li
- Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Nanning, China
- NHC Key Laboratory of Thalassemia Medicine, Guangxi Medical University, Nanning, China
| | - Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qisheng Shu
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Ping Chen
- Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Nanning, China
- NHC Key Laboratory of Thalassemia Medicine, Guangxi Medical University, Nanning, China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Peng C, Guo S, Yang Z, Li X, Su Q, Mo W. A prognostic model for bladder cancer based on cytoskeleton-related genes. Medicine (Baltimore) 2023; 102:e33538. [PMID: 37115085 PMCID: PMC10146030 DOI: 10.1097/md.0000000000033538] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 04/29/2023] Open
Abstract
BACKGROUND A typical cancerous growth in the urinary tract, bladder cancer (BLCA) has a dismal survival rate and a poor chance of being cured. The cytoskeleton has been shown to be tightly related to tumor invasion and metastasis. Nevertheless, the expression of genes associated with the cytoskeleton and their prognostic significance in BLCA remain unknown. METHODS In our study, we performed differential expression analysis of cytoskeleton-related genes between BLCA versus normal bladder tissues. According to the outcomes of this analysis of differentially expressed genes, all BLCA cases doing nonnegative matrix decomposition clustering analysis be classified into different molecular subtypes and were subjected to Immune cell infiltration analysis. We then constructed a cytoskeleton-associated gene prediction model for BLCA, and performed risk score independent prognostic analysis and receiver operating characteristic curve analyses to evaluate and validate the prognostic value of the model. Furthermore, enrichment analysis, clinical correlation analysis of prognostic models, and immune cell correlation analysis were carried out. RESULTS We identified 546 differentially expressed genes that are linked to the cytoskeleton, including 314 up-regulated genes and 232 down-regulated genes. All BLCA cases doing nonnegative matrix decomposition clustering analysis could be classified into 2 molecular subtypes, and we observed differences (P < .05) in C1 and C2 immune scores about 9 cell types. Next, we obtained 129 significantly expressed cytoskeleton-related genes. A final optimized model was constructed consisting of 11 cytoskeleton-related genes. Survival curves and risk assessment predicted the prognostic risk in both groups of patients with BLCA. Survival curves and receiver operating characteristic curves were used to evaluate and validate the prognostic value of the model. Significant enrichment pathways for cytoskeleton-associated genes in bladder cancer samples were explored by Gene set enrichment analysis enrichment analysis. After we obtained the risk scores, a clinical correlation analysis was performed to examine which clinical traits were related to the risk scores. Finally, we demonstrated a correlation between different immune cells. CONCLUSION Cytoskeleton-related genes have an important predictive value for BLCA, and the prognostic model we constructed may enable personalized treatment of BLCA.
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Affiliation(s)
- Chunting Peng
- Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Department of Clinical Laboratory, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang, China
| | - Sufan Guo
- Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Department of Clinical Laboratory, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang, China
| | - Zheng Yang
- Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Department of Clinical Laboratory, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang, China
| | - Xiaohong Li
- Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Department of Clinical Laboratory, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang, China
| | - Qisheng Su
- Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Department of Clinical Laboratory, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang, China
| | - Wuning Mo
- Key Laboratory of Clinical Laboratory Medicine of Guangxi Department of Education, Department of Clinical Laboratory, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang, China
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Tang J, Zhong J, Yang Z, Su Q, Mo W. Glyoxalase 1 inhibitor BBGC suppresses the progression of chronic lymphocytic leukemia and promotes the efficacy of Palbociclib. Biochem Biophys Res Commun 2023; 650:96-102. [PMID: 36774689 DOI: 10.1016/j.bbrc.2023.01.034] [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: 12/15/2022] [Revised: 12/22/2022] [Accepted: 01/12/2023] [Indexed: 02/04/2023]
Abstract
Chronic lymphocytic leukemia (CLL) is a highly heterogeneous disease. Despite recent tremen-dous progress in managing CLL, the disease remains incurable with clinical therapies, and relapse is inevitable. To overcome this, new diagnostic and prognostic markers need to be investigated. We thus screened through the public database for genes with diagnostic, prognostic, and therapeutic implications in CLL. We further performed RT-qPCR and Western blot analysis to measure the candidate gene and protein expression levels, respectively, in peripheral blood mononuclear cells. Our results indicated that Glyoxalase 1 (GLO1) expression was significantly higher in patients with CLL than in healthy controls. Furthermore, cell proliferation, apoptosis, and cell cycle assay results together indicated that S-p-bromobenzylglutathione cyclopentyl diester (BBGC), an effective inhibitor of GLO1, suppresses the progression of CLL. Bioinformatics analysis revealed that GLO1 expression is closely associated with CDK4 expression in a wide variety of cancer types, and inhibition of CDK4 through silencing of genes or inhibitors can downregulate GLO1 expression. Subsequent validation experiments demonstrated that GLO1 protein levels were downregulated in MEC-1 and Jurkat cell lines after palbociclib exposure, and combination treatment of palbociclib with GLO1 inhibitor BBGC effectively delayed the growth of tumor cell lines.
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Affiliation(s)
- Jiameng Tang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, 530000, China
| | - Jialing Zhong
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, 530000, China
| | - Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, 530000, China
| | - Qisheng Su
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, 530000, China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, 530000, China.
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Li R, Bonora G, Dai C, Xiang B, Zheng T, Mo W, Wang X, Zhou K, Jia S, Luo S, Du P. 911P The development and application of a baseline-agnostic minimal residual disease assay. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Yang Z, Li S, Liu H, Su Q, Li X, Qiu Y, Mo W. Identification of key genes and pathways associated with diabetes of the exocrine pancreas. Medicine (Baltimore) 2022; 101:e29781. [PMID: 36042664 PMCID: PMC9410602 DOI: 10.1097/md.0000000000029781] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
This study aimed to identify potential essential genes and pathways in diabetes of the exocrine pancreas (DEP) and explore possible molecular mechanisms. The array dataset GSE76895 was downloaded from the Gene Expression Omnibus database. Pancreatic tissue samples from 20 Diabetes of the exocrine pancreas and 32 nondiabetic individuals were selected for analysis. GEO2R analyzed differentially expressed genes (DEGs) in the 2 groups. Gene ontology annotation, Kyoto Encyclopedia of Genes Genomes and Reactome pathway enrichment analyses and Gene Set Enrichment Analysis were performed in this study. Protein-protein interaction (PPI) networks were constructed using Cytoscape software, and core networks were identified using MCODE plugins. A total of 62 genes, including 59 up-regulated and 3 down-regulated genes, were differentially expressed in DEP samples compared with nondiabetic patients. PPI network with 53 nodes and 138 edges was established. HLA-DRA is identified as the central gene of the PPI network and maybe a marker gene for DEP. Furthermore, up-regulated DEGs are mainly enriched in pathways related to the immune system and infection. The results of this study suggest that HLA-DRA and immune system pathways may play essential roles in DEP.
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Affiliation(s)
- Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Shengqi Li
- Department of Medicine, Guangxi Medical College, Nanning, Guangxi, China
| | - Huaying Liu
- Department of Medicine, Guangxi Medical College, Nanning, Guangxi, China
| | - Qisheng Su
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Xiaohong Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Yulin Qiu
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
- *Correspondence: Wuning Mo, Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning 530021, Guangxi Province, China (e-mail: )
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Luo C, Zhang Z, Su Q, Mo W. Identification of Phosphorylated Proteins Regulated by SDF2L1 in Nasopharyngeal Carcinoma Cells. Evol Bioinform Online 2022; 18:11769343221095862. [PMID: 35559353 PMCID: PMC9087222 DOI: 10.1177/11769343221095862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 04/04/2022] [Indexed: 12/20/2022] Open
Abstract
SDF2L1 is a new type of endoplasmic reticulum stress inducible protein, which is
related to poor prognosis of various cancer, we initially studied the low
expression level of SDF2L1 in NPC, but the molecular mechanism of SDF2L1 in NPC
needs further elucidation. To identify phosphorylated proteins regulated by
SDF2L1 in nasopharyngeal carcinoma (NPC), Label-free Quantitative (LFQ)
Proteomics and 2D-LC-MS/MS analysis were performed on high metastatic NPC 5-8F
cells with overexpression of SDF2L1 and empty segment. Western blotting was
applied to validate the differentially expressed phosphorylated proteins
(DEPPs). As a result, 331 DEPPs were identified by proteomics, and PARVA
phosphorylation (ser8) was validated. The present results suggested that PARVA
phosphorylation may be a new promising biomarker for predicting NPC and play a
key role in the occurrence and development of NPC.
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Affiliation(s)
- Chengchang Luo
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang, Autonomous Region, China
| | - Zunni Zhang
- Department of Clinical Laboratory, The People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Academy of Medical Sciences, Nanning, Guangxi Zhuang, Autonomous Region, China
| | - Qisheng Su
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang, Autonomous Region, China
| | - Wuning Mo
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang, Autonomous Region, China
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Cen C, Tang J, Su Q, Zhang Z, Yang Z, Mo W. Systemic analysis the expression, prognostic, and immune infiltrates significance of MS4A family in lung cancer. All Life 2022. [DOI: 10.1080/26895293.2022.2025914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Caize Cen
- Department of Clinical Laboratory, First Affiliated Hospital Guangxi Medical University, Nanning, People’s Republic of China
| | - Jiameng Tang
- Department of Clinical Laboratory, First Affiliated Hospital Guangxi Medical University, Nanning, People’s Republic of China
| | - Qisheng Su
- Department of Clinical Laboratory, First Affiliated Hospital Guangxi Medical University, Nanning, People’s Republic of China
| | - Zunni Zhang
- Department of Clinical Laboratory, People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, People’s Republic of China
| | - Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital Guangxi Medical University, Nanning, People’s Republic of China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital Guangxi Medical University, Nanning, People’s Republic of China
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Su Q, Yang Z, Guo X, Mo W, Li X. Tubulin polymerization promoting protein family member 3 (TPPP3) overexpression inhibits cell proliferation and invasion in nasopharyngeal carcinoma. Bioengineered 2021; 12:8485-8495. [PMID: 34668461 PMCID: PMC8806723 DOI: 10.1080/21655979.2021.1984006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The function of tubulin polymerization promoting protein family member 3 (TPPP3) in tumor cells is complicated, and the role of TPPP3 in nasopharyngeal carcinoma (NPC) remains unclear. This study aims to explore the expression of TPPP3 in NPC and its effect on NPC cells. The expression of TPPP3 in NPC tissues and other cancers were analyzed by using the Oncomine and Gene Expression Omnibus (GEO) databases. The mRNA and protein of TPPP3 were detected in NPC tissues by quantitative real-time PCR and immunohistochemistry. Furthermore, TPPP3 was overexpressed in 5-8 F and HONE1 cell lines by lentivirus transfection, and functional analysis of TPPP3 in NPC was evaluated through in vitro experiments. The expression of TPPP3 was significantly down-regulated in NPC tissues and cells. Overexpression of TPPP3 significantly inhibited proliferation of 5-8 F and HONE1 cells in vitro. In addition, overexpression of TPPP3 significantly attenuated the invasion ability of 5-8 F, HONE1 cells in vitro, but have no significant effect on migration ability. Furthermore, TPPP3 overexpression diminished the expression of MMP-2 and MMP-9 mRNA. By analyzing dataset GSE12452, it was interesting that TPPP3 high expression group mainly functioned in B cell receptor signaling pathway, cell cycle and DNA replication. In conclusion, our results suggest that TPPP3 may be considered as an antioncogene, which plays an important role in the occurrence and progression of NPC.Abbreviations: TPPP3: tubulin polymerization promoting protein family member 3; NPC: nasopharyngeal carcinoma; GEO: Gene Expression Omnibus; qRT-PCR: quantitative real-time PCR; GFP: green fluorescence protein; MOI, transfected multiplicity of infection; CCK-8: cell counting kit-8; OD: optical density; GSEA: gene set enrichment analysis; GO: Gene Ontology; KEGG: Kyoto Encyclopedia of Genes and Genomes; MMP-2: matrix metalloproteinase-2; MMP-9: matrix metalloproteinase-9.
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Affiliation(s)
- Qisheng Su
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zheng Yang
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiaobin Guo
- Department of Urology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Wuning Mo
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiaohong Li
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Zhang Z, Zhang Y, Qiu Y, Mo W, Yang Z. Human/eukaryotic ribosomal protein L14 (RPL14/eL14) overexpression represses proliferation, migration, invasion and EMT process in nasopharyngeal carcinoma. Bioengineered 2021; 12:2175-2186. [PMID: 34057029 PMCID: PMC8806664 DOI: 10.1080/21655979.2021.1932225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Although human/eukaryotic ribosomal protein L14 (RPL14/eL14) is known to be associated with a variety of cancers, its role in nasopharyngeal carcinoma (NPC) remains unclear. The aim of this study was to explore the impact of RPL14(eL14) in NPC. The results of quantitative real-time polymerase chain reaction (qRT-PCR), western blot, and immunohistochemical staining revealed that the expression of RPL14(eL14) significantly reduced in NPC tissues and cells. Furthermore, the protein expression of RPL14(eL14) was linked to NPC-related clinical pathological features, including the T and N classification of Tumor Node Metastasis (TNM) staging (all p < 0.05). Cell counting kit-8 (CCK-8) assay and colony formation assay revealed that RPL14(eL14) overexpression repressed NPC cell proliferation. In cell cycle assay, RPL14(eL14) overexpression significantly blocked NPC cells in S phase. Overexpression of RPL14(eL14) repressed cell migration and invasion in NPC as shown by transwell assay and cell scratch healing assay. In addition, RPL14(eL14) was closely correlated with the expression of epithelial–mesenchymal transition (EMT) biomarkers, including E-cadherin, N-cadherin, and vimentin as detected by western blot. In conclusion, our results revealed that RPL14(eL14) may be considered as an antioncogene in NPC, which greatly suppresses cancer progression.
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Affiliation(s)
- Zunni Zhang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Yalong Zhang
- Department of Ultrasonic Medicine, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Yuling Qiu
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China
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Zhang Z, Zhang Y, Mo W. The Autophagy Related Gene CHAF1B Is a Relevant Prognostic and Diagnostic Biomarker in Hepatocellular Carcinoma. Front Oncol 2021; 10:626175. [PMID: 33575221 PMCID: PMC7870991 DOI: 10.3389/fonc.2020.626175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 12/14/2020] [Indexed: 12/01/2022] Open
Abstract
The role of autophagy in tumors is complex; based on known interactions between autophagy and hepatocellular carcinoma (HCC) pathogenesis, we hypothesized that autophagy-related genes (ARGs) may play an important role in HCC. The ARGs were obtained from the Human Autophagy Database and the Gene Set Enrichment Analysis. Based on the area under the curve (AUC) value >0.9 with p <0.0001 and Student's T-test analysis with p <0.0001, differently expressed autophagy-related genes (DEARGs) with high diagnostic efficiency were found. Besides that, we searched in the PubMed database to find novel DEARGs associated with HCC. Then the DEARGs were validated in the GSE25097, GSE54236, GSE76427, GSE64041, Oncomine, and Human Protein Atlas datasets. Finally, survival analysis of CHAF1B in HCC and correlations of clinico-pathological characteristics and CHAF1B were performed based on the TCGA database. The mRNA and protein expression of 531 ARGs were analyzed and validated in eight independent cohorts. First, 18 DEARGs with high diagnostic efficiency were selected from the TCGA database, and nine of them were identified that had not previously been associated with HCC. These nine DEARGs were validated in the GSE25097, GSE54236, GSE76427, GSE64041, Oncomine, and Human Protein Atlas datasets. Additionally, we found that CHAF1B was associated with overall survival and relapse free survival at one, three, and five years. Furthermore, the univariate and multivariate Cox analyses revealed that the high expression of CHAF1B was an independent risk factor in HCC patients. This research demonstrated that CHAF1B was a novel diagnostic and prognostic signature biomarker that could be potentially useful for predicting the development of HCC and may provide new insights for HCC tumorigenesis and treatments.
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Affiliation(s)
- Zunni Zhang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yalong Zhang
- Department of Ultrasonic Medicine, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Qiu Y, Huang Y, Chen P, Wei S, Su Q, Zhang Z, Yang Z, Ye L, Huang J, Shen X, Mo W. Compound Heterozygosity for a Novel Mutation Codon 104 (-A) ( HBB: c.313delA) and Codons 41/42 (-CTTT) ( HBB: c.126_129delCTTT) Leading to β-Thalassemia Major in a Chinese Family. Hemoglobin 2020; 44:402-405. [PMID: 33198537 DOI: 10.1080/03630269.2020.1843482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
β-Thalassemia (β-thal) is a hereditary blood disorder characterized by the reduced or absent synthesis of β-globin chains. Here, we report a case of severe thalassemia with compound heterozygosity for a novel deletion mutation at codon 104 (-A) (HBB: c.313delA) and codons 41/42 (-CTTT) (HBB: c.126_129delCTTT) on the β-globin gene (HBB), and a coinheritance of the -α4.2 (leftward) deletion on the α-globin gene cluster. The proband was a 12-year-old boy, and four other family members were involved in this study. This novel frameshift mutation caused classical β-thal trait in the heterozygote and a transfusion-dependent form of β-thal major (β-TM) in compound heterozygosity with other β0 mutations.
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Affiliation(s)
- Yuling Qiu
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, People's Republic of China.,Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Yuanyuan Huang
- Department of Clinical Laboratory, Laibin Maternal and Child Health Care Hospital, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Ping Chen
- Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Shilu Wei
- Guangxi Key Laboratory of Thalassemia Research, Guangxi Medical University, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Qisheng Su
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Zunni Zhang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Lihua Ye
- Department of Clinical Laboratory, Laibin Maternal and Child Health Care Hospital, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Jun Huang
- Department of Clinical Laboratory, Laibin Maternal and Child Health Care Hospital, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Xuelian Shen
- Department of Clinical Laboratory, Laibin Maternal and Child Health Care Hospital, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, People's Republic of China
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Wu C, Mo W. [Molecular diagnosis of a family with May-Hegglin anomaly]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2020; 37:60-63. [PMID: 31922599 DOI: 10.3760/cma.j.issn.1003-9406.2020.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To explore the molecular basis for a pedigree affected with May-Hegglin anomaly (MHA). METHODS Peripheral blood samples were collected and subjected to DNA extraction. Exons 1, 10, 16, 24, 25, 26, 30, 31, 33, 38 and 40 and flanking sequences of the MYH9 gene were subjected to PCR amplification and Sanger sequencing. Changes in protein expression were determined by an indirect immunofluorescence assay. Platelet aggregation function of the proband was assessed by thromboelastogram. RESULTS The proband and his second son both carried a heterozygous 5521G>A (GAG to AAG) missense variant in exon 38 of the MYH9 gene, leading to p.Glu1841Lys substitution at position 1841 of amino acid sequence. Immunofluorescence showed inclusions containing NMMHC-II A. Thromboelastogram suggested enhanced platelet aggregation function of the proband. CONCLUSION The c.5521G>A variant of MYH9 gene has co-segregated with the phenotype of MHA in this pedigree. To assess the aggregation function of platelet by thromboelastogram can predict the risk of bleeding in MHA patients.
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Affiliation(s)
- Chaoli Wu
- Department of Laboratory Medicine, Affiliated Hospital of Guilin Medical College, Guilin, Guangxi 541001, China.
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Abstract
The purpose of our study was to investigate the diagnostic value of NLR, hemoglobin (HB) and combine NLR with HB in the BD patients.Sixty-seven patients with BD were diagnosed in the rheumatology or dermatology between June 2015 and June 2019; 92 matching healthy physical examiners were included in our study. SPSS was used for statistical analysis.Compared with the healthy control, NLR was increased (P < .001), while the HB level was decreased (P < .001) in the patients of BD. In addition, ESR and CRP were increased in BD patients. NLR has no relationship with CRP and ESR, while the HB levels were negatively correlated with CRP and ESR (r = -0.293, P = .046; r = -0.431, P = .002). ROC curve analysis revealed the AUC of NLR and HB were 0.797 and 0.798 (P < .001). When combined NLR with HB, the AUC was 0.897 (P < .001). Besides, logistic regression analysis demonstrated that NLR and HB were independent risk factors in the BD patients.We observed that the diagnostic value of NLR, HB and combined NLR with HB in the BD patients were high, particularly when combine NLR with HB. NLR and HB were independent risk factors in the BD patients. In addition, HB levels related to the disease activity of BD patients.
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Zhang Z, Su Q, Zhang L, Yang Z, Qiu Y, Mo W. Clinical significance of serum bilirubin in primary Sjögren syndrome patients. J Clin Lab Anal 2019; 34:e23090. [PMID: 31692065 PMCID: PMC7083477 DOI: 10.1002/jcla.23090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 10/14/2019] [Accepted: 10/15/2019] [Indexed: 12/31/2022] Open
Abstract
Objective The purpose of our research was to demonstrate the clinical significance of serum bilirubin in primary Sjögren syndrome patients (pSS). Patients and methods A total of 116 patients with primary Sjögren syndrome and 138 matched individuals were included in our study. The laboratory parameters of patients with pSS and healthy controls were retrospectively analyzed. Results Serum total bilirubin, direct bilirubin, and indirect bilirubin were significantly reduced (P < .001, P = .001, P < .001) while ESR was significantly increased (P < .001) in patients with pSS when compared with healthy checkup individuals. Statistically, the AUC in patients with pSS is as follows: TBIL = 0.77, P < .001, cutoff value = 7.96; DBIL = 0.617, P = .001 cutoff value = 2.2; and IBIL = 0.786, P < .001 cutoff value = 4.5. Furthermore, our study revealed that TBIL, DBIL, and IBIL were significantly negativity related to ESR (r = −.406, P < .001; r = −.206, P = .026; r = −.429, P < .001). Interestingly, multiple linear regression analysis showed that when adjusted for sex, age, ALT, and AST, the levels of TBIL, DBIL, and IBIL in patients with pSS were independently correlated with ESR. Conclusions This study found that the levels of serum bilirubin were reduced and the inflammatory marker was elevated in patients with pSS. Additionally, serum bilirubin was negatively related with ESR and TBIL, DBIL, and IBIL can be used in the clinical diagnosis and follow‐up visits of the patients with pSS.
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Affiliation(s)
- Zunni Zhang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qisheng Su
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Liqian Zhang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yuling Qiu
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Abstract
Serum concentrations of bilirubin, albumin, and uric acid (UA) play important roles in controlling oxidative stress. Until now, there are few researches related to the relationship between oxidative stress and Crohn's disease (CD); furthermore, no such study has been reported from China. Our aim was to evaluate serum bilirubin, albumin, and UA levels in CD patients and relate them to disease activity.Seventy-one patients diagnosed with CD and 125 sex- and age-matched healthy individuals were retrospectively analyzed during the same period. Clinical characteristics and laboratory parameters were analyzed in CD patients and healthy control groups.Serum levels of bilirubin, albumin, and UA in patients with CD were significantly lower than those in the healthy control group. Correlation analysis demonstrated that serum concentrations of total bilirubin, direct bilirubin, indirect bilirubin, albumin, and UA were negatively related to disease activity in patients with CD (r = -0.620, P < .001; r = -0.304, P < .05; r = -0.623, P < .001; r = -0.408, P < .01; and r = -0.296, P < .05; respectively).Serum bilirubin, albumin and UA levels were significantly lower in CD patients, suggesting potential correlations between serum bilirubin, albumin, and UA levels and disease activity in CD patients. In addition, the noninvasive biochemical index may be potential markers for assessing the disease activity of patients with CD.
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Affiliation(s)
- Qisheng Su
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Li X, Li W, Luo Y, Qin L, Su Q, Mo W. Can we assess severity of Guillain-Barré syndrome using absolute monocyte count? Int J Lab Hematol 2018; 40:488-492. [PMID: 29718547 DOI: 10.1111/ijlh.12845] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 03/29/2018] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Guillain-Barré syndrome (GBS) is an inflammatory demyelinating autoimmune disease, associated with blood-nerve barrier breakdown, inflammatory cells infiltration, and cytokine leakage in the peripheral nervous system. Currently, it has been revealed that monocytes play key roles in the inflammatory response. Therefore, we aimed to assess the correlation between monocyte count and GBS in this study. METHODS Retrospective study was conducted in 114 patients with GBS and 120 age- and gender-matched individuals. RESULTS Absolute monocyte count in patients with GBS was higher than that in healthy controls (0.61 ± 0.24 vs 0.41 ± 0.10; P < .001). Interestingly, monocyte count had significant positive correlations with CRP, ESR, and disease severity of GBS (r = .244, P = .009; r = .269, P = .004; r = .322, P < .001). A cutoff value of 0.515 for monocyte count was observed in patients with GBS (areas under the curve = 0.808, 95% confidence interval = 0.749-0.868, P < .001). Meanwhile, absolute monocyte count was independently associated with GBS in logistic regression analysis (odds ratio = 2.291, 95% confidence interval = 3.557-27.493, P < .001). CONCLUSION Our findings demonstrated that elevated monocyte count is independently associated with GBS patients, and suggested monocyte count is positively associated with disease severity of GBS.
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Affiliation(s)
- X Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - W Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Y Luo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - L Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Q Su
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - W Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Abstract
This study aimed to evaluate the clinical significance of pretreatment red cell distribution width (RDW), monocyte/lymphocyte ratio (MLR), neutrophil/lymphocyte ratio (NLR), and platelet/lymphocyte ratio (PLR) in patients with urothelial carcinoma of the bladder (UCB).Hematological parameters of 127 consecutive patients with UCB and 162 healthy controls were retrospectively analyzed. Receiver operating characteristic curve was plotted to determine the optimal cut-off value of RDW, MLR, NLR, and PLR to predict UCB. Whether these parameters could be independent predictors of UCB and had an association with the demographics and clinical characteristics of patients were also assessed.Patients with UCB had higher pretreatment RDW, MLR, NLR, and PLR compared with the healthy controls. With the tumor progression, MLR, NLR, and PLR rose consistently, whereas no significant difference was observed in RDW across tumor stages. NLR and PLR were associated with tumor size and tumor grade, while MLR was correlated with tumor size only. The best threshold of RDW, MLR, NLR, and PLR to predict UCB was 13.50%, 0.26, 2.16, and 128.46, respectively. Multivariate logistic regression model identified NLR ≥ 2.16 (odds ratio [OR] = 2.914; P < .001) and PLR ≥ 128.46 (OR = 2.761; P < .001) as independent predictors of UCB. High NLR and PLR were also associated with tumor markers, such as carcinoembryonic antigen and α-fetoprotein.Pretreatment NLR and PLR could be significant independent predictors of UCB. These simple and readily available inflammatory markers therefore might be used to manage the disease.
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Affiliation(s)
- Yuzhen Luo
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China
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Li X, Liao L, Deng X, Huang J, Deng Z, Wei H, Mo W, Lin F. α-thalassaemia combined with hereditary spherocytosis in the same patient. Exp Ther Med 2018; 15:1298-1303. [PMID: 29434716 PMCID: PMC5774485 DOI: 10.3892/etm.2017.5579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 11/15/2017] [Indexed: 11/08/2022] Open
Abstract
A family of four from the Guangxi Zhuang Autonomous Region of China, including a child with α-thalassaemia and hereditary spherocytosis (HS), underwent laboratory identification, and genetic analysis. After harvesting peripheral blood samples from the child patient and his family members, GAP-polymerase chain reaction (PCR) and reverse dot-blot tests were used to identify thalassaemia genotypes. After amplifying exons and the adjacent introns of solute carrier family 4 member 1 (Diego blood group) (SLC4A1), ankyrin 1, spectrin α erythrocytic 1, spectrin β erythrocytic and erythrocyte membrane protein band 4.2 by PCR, DNA sequencing was utilised to detect gene mutations of HS. The thalassaemia gene of the child patient was -α3.7/αα and identical to the genotype of his mother. DNA testing of HS identified two mutation sites on the SLC4A1 gene: Exon 3 c.113A>C (Asp 38 Ala) and intron 7 c.609+86G>A. The father and older sister of the patient also had the same mutations. Due to the mutual interference with disorders of haemoglobin synthesis and erythrocyte membrane defects of laboratory results, it is difficult to diagnose HS when it coexists with thalassaemia. When clinical manifestations and laboratory results cannot be explained by a single haemolytic anaemia, the possibility of combining with another haemolytic anaemia should be considered. Thus, it is necessary to perform pedigree investigation and genetic analyses for a final diagnosis.
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Affiliation(s)
- Xiaohong Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Lin Liao
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Xuelian Deng
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Jian Huang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Zengfu Deng
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Hongying Wei
- Department of Paediatrics, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Faquan Lin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
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Li X, Li W, Mo W, Yang Z. Acute lymphoblastic leukemia arising after treatment of Ewing sarcoma was misdiagnosed as bone marrow metastasis of Ewing sarcoma: A case report. Medicine (Baltimore) 2018; 97:e9644. [PMID: 29505001 PMCID: PMC5779770 DOI: 10.1097/md.0000000000009644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
RATIONALE Both acute lymphoblastic leukemia (ALL) and Ewing sarcoma (ES) are small round cell tumors, and it is difficult to differential diagnose them because of overlapping clinical, radiographic, histologic, and immunophenotypic features. PATIENT'S CONCERNS A 5-year-old boy was admitted to our hospital because of pains in his left leg without obvious inducement and lameness worsening with walking over a two 2-month period. DIAGNOSES Based on the comprehensive analysis of radiography, magnetic resonance imaging (MRI), pathology biopsy and immunohistochemistry, the lesion was confirmed to be ES. INTERVENTIONS The patient received neoadjuvant chemotherapy with 2 cycles of VAC (vincristine 1 mg/m, adriamycin 50 mg/m, cyclophosphamide 800 mg/m) and 2 cycles of IE (ifosfamide 1.2 g/m, etoposide 70 mg/m, mesna 1.2 g/m) regimens. OUTCOMES After 16 months, the results of routine blood tests showed reduced hemoglobin levels and decreased platelet counts. In addition, blast-like cells were found in a peripheral blood smear. All of the results suggested that the patient should undergo bone marrow aspiration and biopsy, which showed blast-like cells similar to that observed in cases of ES. Thus, a diagnosis of bone marrow metastasis of ES was established. However, when combined with immunohistochemistry data and medical history, the patient was eventually diagnosed as ALL arising after treatment of ES. LESSONS When there was an abnormality in peripheral blood, it was easily misdiagnosed as bone marrow metastasis of ES after ES patient received neoadjuvant chemotherapy. We should jointly analyze bone marrow aspiration smear, bone marrow biopsy, immunohistochemistry, analysis of the medical history, even cytogenetic and molecular analysis for differential diagnosis.
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Mo L, Li W, Shi X, Yang Z, Li X, Qin L, Luo Y, Mo W. WWOX suppresses proliferation and induces apoptosis via G2 arrest and caspase 3 pathway in nasopharyngeal carcinoma cells. Int J Clin Exp Pathol 2017; 10:11526-11535. [PMID: 31966508 PMCID: PMC6966073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 10/24/2017] [Indexed: 06/10/2023]
Abstract
BACKGROUND WWOX plays crucial roles in various tumors. However, so far, minimal research into the role of WWOX in the development of nasopharyngeal carcinoma (NPC) has been reported. The present study investigates the effects of WWOX overexpression on cell proliferation, migration, and invasion in human NPC cell line CNE1. MATERIALS AND METHODS A lentiviral vector carrying WWOX was transfected into CNE1 cells. The mRNA abundances of WWOX, MMP9, E-cadherin and WWOX protein were detected using quantitative RT-PCR and Western blotting in the transfected cells compared with the control cells (cells transfected using the empty vector and untransfected cells), respectively. Cell proliferation rates were assessed by plate colony formation assays and methyl thiazolyl tetrazolium (MTT). Cell migration and invasion were tested through wound healing assays and/or transwell migration and invasion assays. Cell cycle progression and apoptosis assays were performed by flow cytometry. The protein abundances of activated fragments of caspase-3, cleaved caspase-3 and AKT, phosphorylated p-AKT (Ser473) were measured using Western blotting. RESULTS Overexpression of WWOX significantly inhibited cell proliferation, migration and invasion and induced apoptosis. Moreover, WWOX overexpression led to cell proliferation inhibition via induction of cell cycle arrest in G2/M phase. WWOX suppressed migration and invasion via downregulation of MMP9 and upregulation of E-cadherin. Meanwhile, WWOX could downregulate the phosphorylation of Akt protein kinase and upregulate cleavage of Caspase-3, contributing to inhibition of proliferation and promotion of apoptosis. CONCLUSION WWOX gene may be a novel target for gene therapy in NPC.
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Affiliation(s)
- Lijun Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Wenchao Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Xiang Shi
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Xiaohong Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Liuqun Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Yuzhen Luo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
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Abstract
OBJECTIVE Our aim was to assess the correlation between serum bilirubin levels and Guillain-Barré syndrome (GBS). PATIENTS AND METHODS One hundred and one newly diagnosed patients with Guillain-Barré syndrome and 111 healthy age- and sex-matched individuals in the First Affiliated Hospital of Guangxi Medical University (Guangxi, China) from June 2012 to May 2017 were included in this study. Clinical characteristics and laboratory parameters of Guillain-Barré syndrome patients and healthy controls were retrospectively analysed. RESULTS Serum bilirubin levels in Guillain-Barré syndrome patients were significantly lower as compared with those in healthy controls (p < 0.001); besides, log C-reactive protein and erythrocyte sedimentation rate were significantly higher. We found that there was a negative correlation between GBS disability scale scores and total bilirubin, direct bilirubin, indirect bilirubin (r = -0.541, P < 0.001; r = -0.403, P < 0.001; r = -0.526, P < 0.001), respectively. Among patients with GBS, serum total bilirubin, direct bilirubin, and indirect bilirubin levels were independently associated with Guillain-Barré syndrome disability scale scores in multiple linear regression analysis, respectively. CONCLUSIONS We observed that serum bilirubin levels were lower in patients with Guillain-Barré syndrome, and suggested total bilirubin, direct bilirubin, and indirect bilirubin were independently and inversely associated with Guillain-Barré syndrome severity.
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Affiliation(s)
- Xiaohong Li
- a Department of Clinical Laboratory , First Affiliated Hospital of Guangxi Medical University , Nanning , China
| | - Wenchao Li
- a Department of Clinical Laboratory , First Affiliated Hospital of Guangxi Medical University , Nanning , China
| | - Xiang Shi
- a Department of Clinical Laboratory , First Affiliated Hospital of Guangxi Medical University , Nanning , China
| | - Lijun Mo
- a Department of Clinical Laboratory , First Affiliated Hospital of Guangxi Medical University , Nanning , China
| | - Yuzhen Luo
- a Department of Clinical Laboratory , First Affiliated Hospital of Guangxi Medical University , Nanning , China
| | - Liuqun Qin
- a Department of Clinical Laboratory , First Affiliated Hospital of Guangxi Medical University , Nanning , China
| | - Zheng Yang
- a Department of Clinical Laboratory , First Affiliated Hospital of Guangxi Medical University , Nanning , China
| | - Wuning Mo
- a Department of Clinical Laboratory , First Affiliated Hospital of Guangxi Medical University , Nanning , China
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Qin L, Li X, Lin Z, Li H, Mo Y, Su F, Mo W, Yang Z. EBV-LMP1 regulating AKT/mTOR signaling pathway and WWOX in nasopharyngeal carcinoma. Int J Clin Exp Pathol 2017; 10:8619-8625. [PMID: 31966718 PMCID: PMC6965410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 03/15/2017] [Indexed: 06/10/2023]
Abstract
Our previous studies found the expression of tumor suppressor gene WWOX was reduced in nasopharyngeal carcinoma (NPC), and WWOX expression gradually declined with the progress and lymph node metastasis in patients. These suggested that WWOX was related with the development of NPC. AKT/mTOR signaling pathway was considered the primary pathway of cancer cell survival. AKT/mTOR pathway and WWOX had been found to be closely related. NPC was closely related to infection of Epstein-Barr virus (EBV). The study mainly used oncogene LMP1 of EBV as a starting point to explore whether LMP1 regulated the AKT/mTOR signaling pathway and WWOX gene. Western blot and qPCR were used to detect the expression of AKT/mTOR pathway (AKT, p-AKT, p70S6K and p-p70S6K) and WWOX in nasopharyngeal carcinoma cell lines CNE1 and CNE1-LMP1, and accessed relationship of LMP1 with AKT/mTOR and WWOX. Research of correlation between LMP1 and WWOX gene expression suggested that in CNE1-LMP1 cells, WWOX gene and protein levels were decreased compared with CNE1 cells (P=0.025, P=0.042, respectively). The difference was statistically significant, and suggested that LMP1 expression correlated with WWOX. Research of correlation between LMP1 and AKT/mTOR signaling pathway demonstrated that when cell line CNE1-LMP1 was compared with CNE1 in AKT/mTOR pathway key protein of AKT, p-AKT, p70S6K and p-p70S6K expression, P values were 0.075, 0.008, 0.124, 0.034, respectively, and expression of p-AKT, p-p70S6K in CNE1-LMP1 were higher than CNE1, which were significantly different from each other. It suggested AKT/mTOR pathway was regulated by LMP1. WWOX gene and AKT/mTOR signaling pathway were regulated by the EBV-LMP1 oncogene.
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Affiliation(s)
- Lingyan Qin
- Department of Clinical Laboratory, Affiliated Minzu Hospital of Guangxi Medical UniversityNanning, Guangxi, People’s Republic of China
| | - Xiaohong Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi, People’s Republic of China
| | - Zhongyuan Lin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi, People’s Republic of China
| | - Hongtao Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi, People’s Republic of China
| | - Yingxi Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi, People’s Republic of China
| | - Fang Su
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi, People’s Republic of China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi, People’s Republic of China
| | - Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi, People’s Republic of China
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Kamimura A, Al-Obaydi S, Nguyen H, Trinh H, Mo W, Doan P, Franchek-Roa K. Intimate partner violence education for medical students in the USA, Vietnam and China. Public Health 2015; 129:1452-8. [DOI: 10.1016/j.puhe.2015.04.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 12/21/2014] [Accepted: 04/27/2015] [Indexed: 11/16/2022]
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Qin L, Zhao L, Tan C, Chen XU, Yang Z, Mo W. A novel method of combining Periodic Acid Schiff staining with Wright-Giemsa staining to identify the pathogens Penicillium marneffei, Histoplasma capsulatum, Mucor and Leishmania donovani in bone marrow smears. Exp Ther Med 2015; 9:1950-1954. [PMID: 26136921 DOI: 10.3892/etm.2015.2357] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 01/29/2015] [Indexed: 01/20/2023] Open
Abstract
Penicillium marneffei, Histoplasma capsulatum, Mucor and Leishmania donovani can lead to penicilliosis marneffei, histoplasmosis, mucormycosis and leishmaniasis, respectively, which, to a certain extent, share similar clinical manifestations. These pathogens are approximately the same size, therefore it is relatively difficult to rapidly diagnose the diseases. The aim of the present study was to explore a novel method that attempts to rapidly identify the pathogens of these diseases. In the Wright-Giemsa staining, the four pathogens were approximately the same size and mainly existed in macrophages. The multiplying P. marneffei had two nuclei, which were on both sides of the fungus, and had light cross-walls in the middle. H. capsulatum had a purplish nucleus, which occupied between one-third and one-half of the spore. The cytoplasm was light blue. Peripheral spores were observed in the form of an empty, bright ring without color, like a capsule. Generally, Mucor were observed to have a long and lightly stained area, which could be easily confused with the Wright staining of dinuclear P. marneffei. L. donovani exhibited a deep-staining kinetoplast near the nucleus. In the Periodic Acid Schiff (PAS) staining, the pathogens of P. marneffei and H. capsulatum were distinct and stained red. Differentiation between P. marneffei and H. capsulatum relied on their modes of reproduction: P. marneffei depends on fission, when the pathogens stretch into sausage-shapes and are split by a cross-wall, while H. capsulatum depends on budding so that narrow-necked, single spores can be formed. With PAS staining, the cell walls and intracellular contents of Mucor and L. donovani were not stained, lightly stained or granulated and discontinuous. In conclusion, this method, combining PAS and Wright-Giemsa staining, is simple and rapid, and may contribute to the effective identification of the four pathogens.
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Affiliation(s)
- Lingyan Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Ligang Zhao
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Chunyan Tan
- Department of Clinical Laboratory, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - X U Chen
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
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Abstract
The WW domain-containing oxidoreductase (WWOX) gene is a candidate tumor suppressor gene. However, its exact mechanism is unclear. This study aimed to investigate the role of the WWOX gene in the development of nasopharyngeal carcinoma (NPC). Tissues were collected from 65 NPC patients. Reverse transcriptase-polymerase chain reaction (RT-PCR) analysis and immunohistochemistry were performed on NPC tissues to determine the expression of WWOX in NPC. The status of WWOX promoter methylation was analyzed by methylation-specific PCR. Moreover, a PCR-based loss of heterozygosity (LOH) assay was conducted to detect the presence of WWOX deletion in NPC. The expression of WWOX in NPC tissues was significantly downregulated compared with that in non-tumorous tissues (P<0.05). The low expression of WWOX was significantly correlated with clinical TNM stage (P<0.05). In addition, methylation of WWOX was detected in 27 (87%) of 31 WWOX protein negative tissues, suggesting that methylation of the WWOX promoter may regulate its expression. We found that a relatively high percentage of LOH was observed in NPC tissues. A significant inverse correlation between WWOX expression and methylation of its promoter was found in NPC tissue (rs=-0.582, P=0.001). However, LOH was not correlated with WWOX expression and methylation of its promoter. Our results show that WWOX gene alteration is an early genetic alteration and may contribute to tumorigenesis of NPC. WWOX may be an important prognostic marker in NPC.
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Chen X, Wang Z, Yan Y, Li P, Yang Z, Qin L, Mo W. XRCC3 C18067T polymorphism contributes a decreased risk to both basal cell carcinoma and squamous cell carcinoma: evidence from a meta-analysis. PLoS One 2014; 9:e84195. [PMID: 24454720 PMCID: PMC3893120 DOI: 10.1371/journal.pone.0084195] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Accepted: 11/11/2013] [Indexed: 12/19/2022] Open
Abstract
Background The X-ray repair cross-complementing group 3 (XRCC3) in homologous recombination repair (HRR) pathway plays a very important role in DNA double-strand break repair (DSBR). Variations in the XRCC3 gene might lead to altered protein structure or function which may change DSBR efficiency and result in cancer. The XRCC3 C18067T polymorphism has been reported to be associated with skin cancer susceptibility, yet the results of these previous results have been inconsistent or controversial. To derive a more precise estimation of the association, we conducted a meta-analysis. Methods The quality of the studies was assessed according to a predefined scale. The association between the XRCC3 C18067T polymorphism and skin cancer risk was assessed by odds ratios (ORs) together with their 95% confidence intervals (CIs). Results Overall, no significant association was observed between XRCC3 C18067T polymorphism and skin cancer risk in any genetic model. Stratified analyses according to tumor type, significant association was found in the relationship between XRCC3 C18067T polymorphism and nonmelanoma skin cancer risk (homozygote comparison TT versus CC: OR = 0.74, 95%CI = 0.61–0.90, P = 0.003; recessive model TT versus TC/CC: OR = 0.81, 95%CI = 0.68–0.95, P = 0.01). Furthermore, significant association was also observed in XRCC3 C18067T polymorphism with both basal cell carcinoma risk (homozygote comparison TT versus CC: OR = 0.70, 95%CI = 0.53–0.92, P = 0.011; recessive model TT versus. TC/CC: OR = 0.74, 95%CI = 0.60–0.92, P = 0.007) and squamous cell carcinoma risk (heterozygote comparison TT versus .CC: OR = 0.81, 95%CI = 0.67–0.99, P = 0.04; dominant model TT/TC versus .CC: OR = 0.81, 95%CI = 0.68–0.98, P = 0.029). Conclusion The present meta-analysis demonstrates that XRCC3 C18067T polymorphism was not associated with risk of cutaneous melanoma but contributed a decreased risk to both basal cell carcinoma and squamous cell carcinoma.
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Affiliation(s)
- Xu Chen
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Zhe Wang
- Division of Spine and Osteopathy surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Yulan Yan
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Ping Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Lingyan Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
- * E-mail:
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Chen X, Yan Y, Li P, Yang Z, Qin L, Mo W. Association of GSTP1 −313A/G polymorphisms and endometriosis risk: a meta-analysis of case–control studies. Eur J Obstet Gynecol Reprod Biol 2013; 171:362-7. [DOI: 10.1016/j.ejogrb.2013.10.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Revised: 08/12/2013] [Accepted: 10/02/2013] [Indexed: 02/06/2023]
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Chen X, Mo W, Peng Q, Su X. Lack of association between Fas rs180082 polymorphism and risk of cervical cancer: an update by meta-analysis. BMC Med Genet 2013; 14:71. [PMID: 23865866 PMCID: PMC3728080 DOI: 10.1186/1471-2350-14-71] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2012] [Accepted: 07/07/2013] [Indexed: 12/18/2022]
Abstract
Background The Fas rs180082 polymorphism has been reported to be associated with cervical cancer susceptibility, yet the results of these previous results have been inconsistent or controversial. The objective of this study was to explore whether the Fas rs180082 polymorphism confers susceptibility to cervical cancer. Methods The relevant studies were identified through a search of PubMed, Excerpta Medica Database (Embase), Elsevier Science Direct and Chinese Biomedical Literature Database (CBM) until July 2012. The association between the Fas rs180082 polymorphism and cervical cancer risk was assessed by odds ratios (ORs) together with their 95% confidence intervals (CIs). Results A total of 7 case–control studies were eventually identified. We found no association between Fas rs180082 polymorphism and cervical cancer susceptibility in overall population (G versus A: OR = 1.03, 95% CI = 0.99-1.07, P = 0.197; AG + GG versus AA: OR = 1.04, 95% CI = 0.98-1.09, P = 0.176; GG versus AA + AG: OR = 1.04, 95% CI = 0.84–1.31, P = 0.701). In subgroup analysis, similar results were found in Asian (G versus A: OR = 1.06, 95% CI = 0.97–1.15, P = 0.195; AG + GG versus AA: OR = 1.08, 95% CI = 0.98–1.19, P = 0.176; GG versus AA + AG: OR = 0.97, 95% CI = 0.51–1.84, P = 0.935) and African (G versus A: OR = 1.01, 95% CI = 0.97-1.15, P = 0.195; AG + GG versus AA: OR = 0.99, 95% CI = 0.91–1.07, P = 0.739; GG versus AA + AG: OR = 1.09, 95% CI = 0.94–1.25, P = 0.745). Conclusion This meta-analysis has shown that there is a lack of association of the Fas rs180082 polymorphisms with cervical cancer susceptibility. However, larger scale primary studies with the consideration of gene–gene and gene–environment interactions are still required to further evaluate the interaction of Fas rs180082 polymorphism with cervical cancer susceptibility.
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Affiliation(s)
- Xu Chen
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, Guangxi, People's Republic of China
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Abstract
Tissue factor (coagulation factor III) is a cell surface receptor for coagulation factor VII/VIIa; it was initially recognized as an initiator of the extrinsic coagulation pathway. Recently, the zebrafish tissue factor gene (TF) has been cloned. Paralogs encode coagulation factors IIIa and IIIb; both show remarkable sequence identity to the human and mouse coagulation factor III gene. It has been reported that TF could have additional properties that are essential for normal embryonic development, since knockout of the murine coagulation factor III gene resulted in 90% embryonic lethality. We examined the role of coagulation factor IIIb (f3b) during zebrafish embryonic development. Expression analysis revealed that endogenous f3b was chronologically expressed in the pectoral fins and in the vicinity of the pharynx. Knockout of f3b by injection of an f3b morpholino at the one-to-two cell stage caused distinctive morphological defects in embryos, including edema in the fourth brain ventricle at early embryonic stages and occasional bleeding at later stages. Furthermore, f3b morphants displayed abnormal vascular patterning. We conclude that f3b is required for brain vascular development and for development of part of the somatic vasculature during embryogenesis in the zebrafish.
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Affiliation(s)
- R F Zhou
- Key Laboratory of Molecular Medicine, Department of Biochemistry and Molecular Biology, Ministry of Education, Shanghai Medical College, Fudan University, Shanghai, PR China
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Gao F, Yang CX, Mo W, Liu YW, He YQ. Hyaluronan oligosaccharides are potential stimulators to angiogenesis via RHAMM mediated signal pathway in wound healing. ACTA ACUST UNITED AC 2008; 31:E106-16. [DOI: 10.25011/cim.v31i3.3467] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Purpose: To determine if oligosaccharides of hyaluronan (o-HA) promotes wound recovery by accelerating angiogenesis and to study the mechanisms by which o-HA stimulates endothelial cell (EC) proliferation.
Methods: Using hyaluronidase digestion, we prepared a mixture of hyaluronan (HA) fragments sizesd 2 to 10 disaccharides units, and studied their effects on EC growth and migration in mimicking wound recovery in vitro. The effects of o-HA on EC growth in vitro were studied by counting cell numbers. The roles of 2 hyaluronan receptors on EC cells, CD44 and RHAMM (Receptor for HA-Mediated Motility), were studied in initiating signaling cascades, using immunoblot assay. Signal transduction was determined by blocking antibodies to CD44 and RHAMM. An in vitro wound healing model was prepared by scratching the cellular layer of cultured EC, and movement of cells into the denuded area was quantified.
Results: o-HA was a strong stimulator to EC proliferation at low concentration 10µg/ml compared with native high molecular weight HA (n-HA) (P < 0.01). Signal transduction may be initiated by o-HA via RHAMM receptor on EC membrane, but not CD44. In the in vitro model, the lesion area was nearly completely recovered when the EC layer was exposed to o-HA 40hrs post-injury, whereas the wound area remained half recovered pretreated with native undegraded large HA and control medium.(P < 0.05 from 24 to 40hrs).
Conclusion: Hyaluronan oligosaccharides may play a role in wound healing by increasing angiogenesis. o-HA-RHAMM binding dependent signal transduction pathway may be important in the regulation of angiogenesis associated with EC proliferation.
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Abstract
PURPOSE To generate microplasmin (microPlm) using recombinant microplasminogen (microPlg) and recombinant tissue plasminogen activator (rt-PA) before intravitreous injection and to investigate the efficacy of microPlm in inducing posterior vitreous detachment (PVD). METHODS Forty-eight female or male New Zealand white rabbits were randomized into three groups. Recombinant human microPlg was incubated with rt-PA with a 200:1 molar ratio at 37 degrees C for 40 min. The right eyes of groups 1, 2, and 3, were injected with 0.5, 1.0, and 1.5 U microPlm in 0.1 ml respectively, and 0.1 ml balanced salt solution (BSS) was injected into the left eye as controls. Scanning electron microscopy (SEM), gross specimen examination, B-ultrasonography and optical coherence tomography (OCT) were performed to detect vitreoretinal interface. RESULTS Over eighty percent of recombinant human microPlg could be activated to active microPlm by rt-PA after 40 min incubation. Complete PVD was found at vitreous posterior pole of microPlm-treated eyes without morphological change of retina. Complete PVD of 25, 75, and 87.5% rabbit eyes was induced by 0.5, 1.0 and 1.5 U recombinant microPlm respectively on day 1. The remnants of vitreous cortex at the posterior pole were dependent on the concentration of microPlm. Among the four approaches for detecting PVD, SEM, gross specimen examination, and B-ultrasonography were more effective methods than OCT. CONCLUSION Intravitreous injection of 1.5 U microPlm can effectively induce complete PVD in rabbit eyes on day 1 without morphological change of retina.
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Affiliation(s)
- W Chen
- Department of Molecular Genetics, Shanghai Medical School and Key Laboratory of Molecular Medicine, Ministry of Education, Fudan University, Shanghai, PR China
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Mao P, Zhu Z, Wang H, Wang S, Mo W, Ying Y, Li Q, Xu Y. Sustained and stable hematopoietic donor-recipient mixed chimerism after unrelated cord blood transplantation for adult patients with severe aplastic anemia. Eur J Haematol 2005; 75:430-5. [PMID: 16191094 DOI: 10.1111/j.1600-0609.2005.00538.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [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: 11/30/2022]
Abstract
We evaluated the engraftment of donor cells from unrelated cord blood into adult patients with severe aplastic anemia (SAA) and the outcome of allo-CBSCT (cord blood stem cell transplantation). Nine patients were conditioned with decreased dosage of immunosuppressive agents of CTX (60 mg/kg) and ALG (120 mg/kg). The prophylaxis of GVHD consisted of standard CsA and MTX. Patients have a media age of 25.3 yr (range: 15-37), and a median weight of 57.2 kg (range: 52.5-60) at the time of transplantation. Cord blood searches were all conducted at Guangzhou Cord Blood Bank. The engraftment state of the donor cells into recipients was confirmed by microsatellite DNA fingerprinting and fluorescent quantitative PCR analysis. Engrafted evidence has been found in seven patients involved by biomolecular analyses showing donor-recipient mixed chimerism post-transplant which was stable and persistent. After a median follow up of 32.2 months (range: 4-69), seven patients were alive and disease free. This study shows that durable donor-recipient stable mixed chimerism can be achieved by unrelated CBSCT in patients with SAA. Umbilical cord blood could be employed as a source of hematopoietic stem cell for adult transplantation.
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Affiliation(s)
- P Mao
- Department of Hematology, First Municipal People's Hospital, Guangzhou, China.
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Mao P, Wang S, Wang S, Zhu Z, Liv Q, Xuv Y, Mo W, Ying Y. Umbilical cord blood transplant for adult patients with severe aplastic anemia using anti-lymphocyte globulin and cyclophosphamide as conditioning therapy. Bone Marrow Transplant 2004; 33:33-8. [PMID: 14704655 DOI: 10.1038/sj.bmt.1704295] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [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: 11/09/2022]
Abstract
Allo-CBSCT (cord blood stem cell transplant) has been applied in six adult patients with severe aplastic anemia (SAA). Anti-lymphocyte globulin (ALG) 40 mg kg(-1) d(-1) x 3 days combined with cyclophosphamide (CTX) 20 mg kg(-1) d(-1) x 3 days constituted a lower intensive conditioning regimen. The prophylaxis of GVHD consisted of standard CsA and MTX. Patients are all male having a mean age of 26.5 years (range 22-38), and a median weight of 55.6 kg (range 52-60 kg). Cord blood searches were all conducted at Guangzhou Cord Blood Bank. Three of six patients in our study received one unit of cord blood in a procedure, whereas for another three patients, two units of cord blood (double units) were infused at the same time in a transplant protocol. The nine units of umbilical cord blood (UCB) infused contained 1.6-10.7 x 10(7) nucleated cells/kg body weight of the recipient after thawing. HLA antigens were identical in one unit, 1 antigen mismatched in seven, 2 antigens mismatched in 1. As of February 2003, after a median follow up of 20 months (range 7-50), four patients are alive and disease free. Five patients engrafted with molecular biology analyses showing donor-recipient mixed chimerism post transplant which is stable and persistent. One patient died of severe infection in the third month from transplant and another patient died in the early stage post transplant of serious aspergillus infection without evidence of engraftment.
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Affiliation(s)
- P Mao
- Department of Haematology, First Municipal People's Hospital, Guangzhou, China.
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Mo W, Deng Z, Li S. Clinical blood routine and bone marrow smear manifestations of disseminated penicilliosis marneffei. Chin Med J (Engl) 2002; 115:1892-4. [PMID: 12622948] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
Abstract
OBJECTIVE To investigate the manifestation of clinical, blood routine and bone marrow smear of disseminated penicilliosis marneffei. METHODS There were 13 cases of penicilliosis marneffei whose peripheral blood had been drawn for routine tests, as well as blood and bone marrow aspiration for smears. Wright's-Giemsa stain, Gomori's methenamine-silver stain (GMS) and periodic acid Schiff's reaction (PAS) were performed for light microscopy in consultation with pathologic diagnosis and fungi culture for precise diagnosis. RESULTS Seven cases of bone marrow and 2 peripheral blood smears were found positive for penicillium marneffei in the test group. The morphology of penicillium marneffei was extremely similar to that of histoplasma capsulatum. However, the observation of sausage cells and central cross wall, which are signs of dividing by fission and not by budding, aided in differential diagnosis. CONCLUSION Bone marrow smear or occasional blood smear examination play an important role in the diagnosis of disseminated penicilliosis marneffei.
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Affiliation(s)
- Wuning Mo
- Central Laboratory, the First Affiliated Hospital, Guangxi Medical University, Nanning 530021, China.
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Sun S, Mo W, Ji Y, Liu S. Preparation and mass spectrometric study of egg yolk antibody (IgY) against rabies virus. Rapid Commun Mass Spectrom 2001; 15:708-712. [PMID: 11319793 DOI: 10.1002/rcm.271] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Rabies virus was used as the antigen to immunize laying chickens. Anti-rabies virus immunoglobulin Y(IgY) was isolated from yolks of the eggs laid by these chickens using a two-step salt precipitation and one-step gel filtration protocol. The purified IgY was reduced with dithiothreitol, and heavy chains (HC) and light chains (LC) were obtained. In addition, the purified IgY was digested with pepsin and the fragment with specific antigen binding properties (Fab) was produced. Using matrix-assisted laser desorption/ionization mass spectrometry (MALDI-TOFMS), the average molecular weights of IgY, HC, LC, and Fab were determined as 167 250, 65 105, 18 660, and 45,359 Da, respectively. IgY has two structural differences compared with mammalian IgGs. First, the molecular weight of the heavy chain of IgY is larger than that of its mammalian counterpart, while the molecular weight of the light chain of IgY is smaller. Second, upon pepsin digestion, anti-rabies virus IgY is degraded into Fab, in contrast to mammalian IgG, which has been reported to be degraded into F(ab')(2) under the same conditions.
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Affiliation(s)
- S Sun
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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Ma Y, Lu Y, Zeng H, Ron D, Mo W, Neubert TA. Characterization of phosphopeptides from protein digests using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and nanoelectrospray quadrupole time-of-flight mass spectrometry. Rapid Commun Mass Spectrom 2001; 15:1693-1700. [PMID: 11555868 DOI: 10.1002/rcm.426] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A two-step mass spectrometric method for characterization of phosphopeptides from peptide mixtures is presented. In the first step, phosphopeptide candidates were identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) based on their higher relative intensities in negative ion MALDI spectra than in positive ion MALDI spectra. The detection limit for this step was found to be 18 femtomoles or lower in the case of unfractionated in-solution digests of a model phosphoprotein, beta-casein. In the second step, nanoelectrospray tandem mass (nES-MS/MS) spectra of doubly or triply charged precursor ions of these candidate phosphopeptides were obtained using a quadrupole time-of-flight (Q-TOF) mass spectrometer. This step provided information about the phosphorylated residues, and ruled out nonphosphorylated candidates, for these peptides. After [(32)P] labeling and reverse-phase high-performance liquid chromatography (RP-HPLC) to simplify the mixtures and to monitor the efficiency of phosphopeptide identification, we used this method to identify multiple autophosphorylation sites on the PKR-like endoplasmic reticulum kinase (PERK), a recently discovered mammalian stress-response protein.
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Affiliation(s)
- Y Ma
- Department of Pharmacology, Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, NY 10016, USA
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Sun S, Mo W, Ji Y, Liu S. Use of nitrocellulose films for affinity-directed mass spectrometry for the analysis of antibody/antigen interactions. Rapid Commun Mass Spectrom 2001; 15:1743-1746. [PMID: 11555875 DOI: 10.1002/rcm.432] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Combination of affinity extraction procedures with mass spectrometric analyses is termed affinity-directed mass spectrometry, a technique that has gained broad interest in immunology and is extended here with several improvements from methods used in previous studies. A monoclonal antibody was immobilized on a nitrocellulose (NC) membrane, allowing the corresponding antigen to be selectively captured from a complex solution for analysis by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS). This method was also used to rapidly determine the approximate binding region responsible for the antibody/antigen interaction. The tryptic fragments of antigen protein in buffer were applied to the antibody immobilized on NC film and allowed to interact. The NC film was then washed to remove salts and other unbound components, and subjected to analysis by MALDI-TOFMS. Using interferon-alpha(2a) and anti-interferon-alpha(2a) monoclonal antibody IgG as a model system, we successfully extracted the antigen protein and determined the approximate binding region for the antigen/antibody interaction (i.e., the tryptic fragment responsible).
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Affiliation(s)
- S Sun
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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Mao P, Liao C, Zhu Z, Wang H, Wang S, Xu Y, Mo W, Ying Y, Li Q, Liu B. Umbilical cord blood transplantation from unrelated HLA-matched donor in an adult with severe aplastic anemia. Bone Marrow Transplant 2000; 26:1121-3. [PMID: 11108315 DOI: 10.1038/sj.bmt.1702667] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [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: 11/08/2022]
Abstract
A 23-year-old male suffering from severe aplastic anemia (SAA) weighing 60 kg was successfully treated by unrelated allo-CBSCT (cord blood stem cell transplantation). A six-loci HLA-identical umbilical cord blood (UCB) was infused after conditioning with low-dose cyclophosphamide (CTX) and antilymphocyte globulin (ALG). The prophylaxis of GVHD consisted of CsA and MTX. The infused cord blood provided 1.89 x 10(7) nucleated cells per kg, CD34-positive cells: 0.89%. Neutrophils >0.5 x 10(9)/l were reached 10 days after transplant, and platelets greater than 50.0 x 10(9)/l at day 26. RBC and platelet transfusion independence were reached on days 15 and 18. The patient developed grade 1 skin GVHD 10 months after engraftment of the donor cells. Microsatellite DNA fingerprinting indicated a stable and persistent donor-recipient mixed chimerism, whilst the circulating red cells remain of host origin.
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Affiliation(s)
- P Mao
- Department of Haematology, First Municipal People's Hospital, Guangzhou, China
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Mao P, Liao C, Zhu Z, Wang H, Wang S, Mo W, Ying Y, Li Q, Liu B. [Umbilical cord blood stem cells transplantation from an unrelated donor into an adult with severe aplastic anemia]. Zhonghua Xue Ye Xue Za Zhi 2000; 21:533-6. [PMID: 11877033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
OBJECTIVE To evaluate the availability of the treatment of adult severe aplastic anemia with unrelated allo-cord blood stem cell transplantation (CBSCT). METHODS HLA-matched unrelated cord blood transplantation has been successfully performed for an adult severe aplastic anemia patient. A unit of cord blood provided by Guangzhou Cord Blood Bank containing 1.89 x 10(7)/kg mononucleated cells, 1.8 x 10(4)/kg CFU-GM and of CD(34) positive cells was 0.009. The patient was conditioned with CTX (60 mg/kg) and anti-lymphocyte globulin (ALG, 120 mg/kg). GVHD prophylaxis consisted of both MTX and CsA. The CsA had been given for 8 months. RESULTS The lowest ANC was 0.6 x 10(9)/L post-transplantation. The patient achieved an ANC of greater than 0.5 x 10(9)/L at 10 days, and the platelet of greater than 50.0 x 10(9)/L at day 20 after transplantation. He developed Grade 1 GVHD in the tenth month after grafting. Microsatellite DNA fingerprinting indicated a stable donor-recipient mixed chimerism, whilst the circulating red cells remained host origin. CONCLUSION It is the first report in China on successful treatment of adult severe aplastic anemia by unrelated allo-CBSCT.
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Affiliation(s)
- P Mao
- First Municipal Peoples Hospital of Guangzhou, Guangzhou 510180, China
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You G, Yang C, Mo W. [Clinical analysis of 106 cases of inhalation injury induced by gas explosion]. Zhonghua Shao Shang Za Zhi 2000; 16:170-2. [PMID: 11876866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
OBJECTIVE To review the management of inhalation injury induced by gas explosion in our department, so as to draw some experience and lessons for future work. METHODS One hundred and six cases of inhalation injury induced by gas explosion were analyzed in terms of the characteristics of and therapeutic methods for the disease. RESULTS The injury induced by gas explosion was very complicated with high incidences of compound injuries, severe inhalation injury and systemic infection. In addition, respiratory dysfunction occurred very quickly and severely at early postburn stage, which could easily develop to respiratory failure. The latter could ultimately lead patients to death due to improper management. CONCLUSION In order to raise cure rate of the inhalation injury induced by gas explosion, airway obstruction should be cleared immediately and fiberbronchoscopy and respirator should be employed as soon as possible to help remove endotracheal obstruction and to maintain effective gas exchange. In addition, correct pulmonary resuscitation and continuous blood gas analysis were advocated.
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Affiliation(s)
- G You
- Department of Burns, Yue Bei Hospital, Shao Guan 512026 P.R. China
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Fang S, Takao T, Satomi Y, Mo W, Shimonishi Y. Novel rearranged ions observed for protonated peptides via metastable decomposition in matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. J Am Soc Mass Spectrom 2000; 11:345-351. [PMID: 10757171 DOI: 10.1016/s1044-0305(99)00153-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
C-terminal rearrangement ions [b(n-1) + H2O] (where n refers to the total number of residues of peptides) are frequently observed for peptides which contain basic amino acid(s), especially arginine, at or near their N termini in low- and high-energy collision-induced dissociation or post-source decay (PSD) spectra. Here we report a novel rearrangement, associated with PSD for serine- or threonine-containing peptides that are susceptible to C-terminal rearrangement. Based on PSD analyses of serine- or threonine-containing bradykinin and its analogs, which have been ethyl-esterified or 18O labeled at their C termini, the [b(k) + H2O] (where k denotes the position adjacent to the left of the Ser/Thr residue) ion is generally thought to be formed by the transfer of the hydroxyl moiety of a serine or threonine residue to the carbonyl group of the residue to its left accompanied by the loss of the remaining C-terminal portion of the peptide. When the Ser/Thr is at or near the C terminus, the present [b(k) + H2O] ion could be formed via two pathways, i.e., the Ser/Thr-related rearrangement and the conventional C-terminal rearrangement, which has been clearly verified by 18O labeling at the C terminus. In addition, the ions which are formally designated as [y(m)b(l) + H2O], where y(m)b(l) denotes a b-type internal ion, are also briefly described.
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Affiliation(s)
- S Fang
- Institute for Protein Research, Osaka University, Suita, Japan
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Mo W, Sakamoto H, Nishikawa A, Kagi N, Langridge JI, Shimonishi Y, Takao T. Structural characterization of chemically derivatized oligosaccharides by nanoflow electrospray ionization mass spectrometry. Anal Chem 1999; 71:4100-6. [PMID: 10500493 DOI: 10.1021/ac990247i] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [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: 11/29/2022]
Abstract
Oligosaccharides released from several glycoproteins were derivatized with either 4-aminobenzoic acid 2-(diethylamino)ethyl ester (ABDEAE) (Yoshino, K.; et al. Anal. Chem. 1995, 67, 4028-4031) or 2-aminopyridine. The resulting derivatives were analyzed on a nanoflow electrospray ionization (ESI) quadrupole-inlet time-of-flight mass spectrometer using the low-energy collision-induced dissociation technique. In the MS/MS spectra, the oxonium (b or internal series) and y series ions, which are derived from the multiply charged precursor ions, were predominant and were used for the structural readout. Some oxonium ions that were observed in the low-mass region, but that were not found in the PSD analyses (Mo, W.; et al. Anal. Chem. 1998, 70, 4520-4526), rendered a more detailed structural insight. The oxonium ions at m/z 512.2, which are derived from the fucosylated oligosaccharides of immunoglobulin Y and thyroglobulin, were observed, suggesting that fucosylation had occurred proximal to the outer nonreducing terminus. In addition, the data herein show that structural elucidation can be routinely achieved at a low sample concentration. For the case of ABDEAE derivatives, this can be achieved at the 50 fmol/microL level and with the actual sample consumption at the attomole level using nanoflow ESI MS/MS.
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Affiliation(s)
- W Mo
- Institute for Protein Research, Osaka University, Japan
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Abstract
Cocaine causes hypertension at least in part by stimulating the sympathetic nervous system, but it is not clear if this effect is centrally or peripherally mediated. To address this issue we studied the vasoconstrictive effect of cocaine in vivo and in isolated artery segments. In vivo cocaine increased mean arterial blood pressure (MAP) by 40 mmHg within 1 min of administration. Pretreatment with prazosin blocked this response by 62%. With clonidine the pre-cocaine MAP was lower and the hypertensive effect of cocaine was blocked by 50%, indicating an important role for central alpha-adrenergic mechanisms. In isolated rat carotid arteries cocaine-induced vasoconstriction was completely blocked by prazosin, phentolamine, and 6-hydroxydopamine, indicating a clear role for a peripheral effect. However, the relative contribution of the central alpha-adrenergic mechanism to the total vasoconstrictive response of cocaine was not clarified. 1999 Academic Press.
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Affiliation(s)
- W Mo
- Hektoen Institute for Medical Research, 627 South Wood Street, Chicago, IL 60612, USA
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Mo W, Brecklin C, Garber SL, Song RH, Pegoraro AA, Au J, Arruda JA, Dunea G, Singh AK. Changes in collagenases and TGF-beta precede structural alterations in a model of chronic renal fibrosis. Kidney Int 1999; 56:145-53. [PMID: 10411687 DOI: 10.1046/j.1523-1755.1999.00545.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [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: 11/20/2022]
Abstract
BACKGROUND To study the role of collagenases and transforming growth factor-beta (TGF-beta) in the genesis of interstitial fibrosis, we used the model of bromoethylamine (BEA)-induced papillary necrosis, which is known to lead over a period of 1 to 12 months to interstitial fibrosis and renal insufficiency. METHODS Rats were injected with BEA, and urine and kidney tissue (cortex and medulla) were collected after 1, 2, 3, 7, and 30 days. One kidney was perfused and fixed for morphological studies and immunostained for collagen type I, III, and IV. The other kidney was used to prepare cortex and medulla extracts for gelatinases (by fluorometric and zymographic techniques), tissue inhibitors of metalloproteinase-1 (TIMP-1), and TIMP-2 (by enzyme-linked immunosorbent assay, ELISA) and TGF-beta1 (by ELISA). RESULTS Albuminuria and interstitial fibrosis were present in BEA rats by day 7, which continued until day 30. Immunocytochemical staining for collagen types showed that collagen III and IV increased in the interstitium by day 30, but collagen I remained unchanged. Gelatinase activity in the medulla decreased by 57% compared with control by day 2 and remained low until day 30. In the cortex, gelatinase activity remained unchanged between 0 and 7 days after BEA but decreased by 72% by day 30. TIMP-1 and TIMP-2 were decreased by 80% compared with day 0 in both the medulla (by day 1) and cortex (by day 2) and remained low up to day 30. TGF-beta1 immunoreactivity increased progressively until day 2 in the medulla (16-fold higher than control) and day 3 in the cortex (8-fold higher than control) and returned to control level by day 3 in the medulla and by day 30 in the cortex. Two days after BEA injection, the mRNA for TGF-beta1 was increased eightfold in the cortex and 12-fold in the medulla, and it remained high for up to 30 days. CONCLUSIONS The fibrosis that follows papillary necrosis is associated with both high TGF-beta1 expression and depressed gelatinolytic activity.
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Affiliation(s)
- W Mo
- Hektoen Institute for Medical Research, Chicago, Illinois 60612, USA
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Shaykh M, Pegoraro AA, Mo W, Arruda JA, Dunea G, Singh AK. Carbamylated proteins activate glomerular mesangial cells and stimulate collagen deposition. J Lab Clin Med 1999; 133:302-8. [PMID: 10072262 DOI: 10.1016/s0022-2143(99)90086-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Carbamylated proteins formed in renal insufficiency from the spontaneous decomposition of urea exert a variety of metabolic effects. Here we examined the effects of carbamylated proteins on glomerular mesangial cells to determine whether urea retention in early renal insufficiency may itself promote glomerular sclerosis and hasten the progression to kidney failure. To this effect we carbamylated fetal bovine serum proteins in vitro and tested their effect on mesangial cell proliferation (by tritiated thymidine uptake), de novo protein synthesis (by tritiated leucine uptake), collagen I and collagen IV accumulation (by avidin-biotin enzyme immunoassay), and gelatinase levels in the medium (by zymography and quantitative fluorescence assay). Carbamylated fetal bovine serum at concentrations present in uremia increased tritiated thymidine incorporation by 50% without altering tritiated leucine incorporation, and it increased collagens I and IV in the monolayer by 150% to 300%. Gelatinase activity was unchanged. We conclude that carbamylated proteins can activate mesangial cells to a profibrogenic phenotype. From a clinical perspective, the carbamylation of proteins by elevated urea levels may accelerate the progression to kidney failure and thus set up a vicious cycle in which the nitrogen retention itself would cause further progression of fibrosis and deterioration of kidney function.
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Affiliation(s)
- M Shaykh
- Hektoen Institute for Medical Research, Chicago, Illinois 60612, USA
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