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Pang W, Zhou F, Zhu Y, Jia Y, Nie F. The Value of Percutaneous Contrast-Enhanced Ultrasound in Sentinel Lymph Node Identification, Metastatic Status and Burden Diagnosis in Early Breast Cancer. J Ultrasound Med 2024; 43:293-303. [PMID: 37876335 DOI: 10.1002/jum.16359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/26/2023] [Accepted: 09/29/2023] [Indexed: 10/26/2023]
Abstract
OBJECTIVE The aim of this study was to evaluate the value of percutaneous contrast-enhanced ultrasound (PCEUS) in the identification and characterization of sentinel lymph node (SLN). METHODS A total of 102 breast cancer patients were collected and underwent preoperative PCEUS, which was used to identify SLN and lymphatic drainage. SLNs were classified into 4 enhancement patterns, including 6 subtypes: homogeneous (I), featured inhomogeneous (II) including inhomogeneous hypoenhancement (IIa) and annular or semi-annular enhancement (IIb), focal filling defect (III) including filling defect area < 50% (IIIa) and filling defect area ≥ 50% (IIIb), and no enhancement (IV). The enhancement patterns of SLNs were compared with the final pathological diagnosis. RESULTS The identification rate of SLNs using PCEUS was 100% (102/102); the rate of identification of LCs was 100% (102/102), and the coincidence rate was 98.0% (100/102). Four lymphatic drainage patterns (LDPs) including 5 subtypes were found: single LC/single SLN(74.5%), multiple LCs/ single SLN (13.7%) including 2 subtypes:2 LCs/1 SLN and 3 LCs/1 SLN, single LC/multiple SLNs (7.8%), and multiple LCs/multiple SLNs (3.9%). A total of 86.3% (44/51) of patients without axillary metastasis could be safely selected for types I, IIa, and IIb, while the axillary metastasis rates of types III and IV were 74.4% and 87.5%, respectively (P < .001). Compared with grayscale US, the PCEUS significant improvement in diagnosing metastatic SLNs (.794 versus .579, P < .001). For the SLN metastatic burden, Types I, IIa, IIb, and IIIa had ≤2 SLNs metastases, with a pathological coincidence rate of (64/67, 95.5%), and types IIIb and IV had >2 SLNs metastases, with a pathological coincidence rate of (25/35, 71.4%) (P < .001). The AUC of PCEUS for the diagnosis of SLN metastatic status and burden was .794 and .879, respectively (P < .001). CONCLUSION PCEUS has a high identification rate for SLN and has good potential for diagnosing SLN metastatic status and burden by enhancement patterns.
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Affiliation(s)
- Wenjing Pang
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
- Gansu Province Clinical Research Center for Ultrasonography, Lanzhou, China
| | - Fei Zhou
- Critical Care Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Yangyang Zhu
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
- Gansu Province Clinical Research Center for Ultrasonography, Lanzhou, China
| | - Yingying Jia
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
- Gansu Province Clinical Research Center for Ultrasonography, Lanzhou, China
| | - Fang Nie
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
- Gansu Province Clinical Research Center for Ultrasonography, Lanzhou, China
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Pang W, Wang Y, Zhu Y, Jia Y, Nie F. Predictive value for axillary lymph node metastases in early breast cancer: Based on contrast-enhanced ultrasound characteristics of the primary lesion and sentinel lymph node. Clin Hemorheol Microcirc 2024; 86:357-367. [PMID: 37955082 DOI: 10.3233/ch-231973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
OBJECTIVE To evaluate the value of contrast-enhanced ultrasound (CEUS) characteristics based on primary lesion combined with lymphatic contrast-enhanced ultrasound (LCEUS) patterns of SLN in predicting axillary lymph node metastasis (ALNM) with T1-2N0 breast cancer. METHODS A retrospective study was conducted in 118 patients with clinically confirmed T1-2N0 breast cancer. Conventional ultrasound (CUS) and CEUS characteristics of the primary lesion and enhancement patterns of SLN were recorded. The risk factors associated with ALNM were selected by univariate and binary logistic regression analysis, and the receiver operating characteristic (ROC) curve was drawn for the evaluation of predictive ALNM metastasis performance. RESULTS Univariate analysis showed that age, HER-2 status, tumor size, nutrient vessels, extended range of enhancement lesion, and the enhancement patterns of SLN were significant predictive features of ALNM. Further binary logistic regression analysis indicated that the extended range of enhancement lesion (p < 0.001) and the enhancement patterns of SLN (p < 0.001) were independent risk factors for ALNM. ROC analysis showed that the AUC of the combination of these two indicators for predicting ALNM was 0.931 (95% CI: 0.887-0.976, sensitivity: 75.0%, specificity: 99.8%). CONCLUSION The CEUS characteristics of primary lesion combined with enhancement patterns of SLN are highly valuable in predicting ALNM and can guide clinical axillary surgery decision-making in early breast cancer.
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Affiliation(s)
- Wenjing Pang
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
- Gansu Province Clinical Research Center for Ultrasonography, Lanzhou, China
| | - Yao Wang
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
- Gansu Province Clinical Research Center for Ultrasonography, Lanzhou, China
| | - Yangyang Zhu
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
- Gansu Province Clinical Research Center for Ultrasonography, Lanzhou, China
| | - Yingying Jia
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
- Gansu Province Clinical Research Center for Ultrasonography, Lanzhou, China
| | - Fang Nie
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China
- Gansu Province Clinical Research Center for Ultrasonography, Lanzhou, China
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Li N, Nie F, Wang Y, Pang W, Wang W, Zhao Y, Jia Y. Contrast-enhanced ultrasound demonstrates greater adjuvant potential: past, current status, and future applications in Hepatocellular carcinoma early diagnosis. Med Ultrason 2023; 25:304-311. [PMID: 36996383 DOI: 10.11152/mu-3949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Hepatocellular carcinoma (HCC) has an atypical onset of clinical symptoms and a rapid tumor progression. The majority of patients with HCC are already in the late stages of the disease when they are diagnosed, limiting them to the best available treatments. Contrast-enhanced ultrasound (CEUS) has achieved significant advances in the diagnosis of HCC, including the detection of small lesions, the investigation of more beneficial contrast agents, and the use of CEUS-based radiomics. The purpose of this review is to discuss the relevant research and future challenges of CEUS in the early detection of HCC, to advise more accurate therapy.
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Affiliation(s)
- Nana Li
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China.
| | - Fang Nie
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China.
| | - Yao Wang
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China.
| | - Wenjing Pang
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China.
| | - Wenzhu Wang
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China.
| | - Yunpeng Zhao
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China.
| | - Yingying Jia
- Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China.
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Meng Z, Zhu Y, Pang W, Tian J, Nie F, Wang K. MSMFN: An Ultrasound Based Multi-Step Modality Fusion Network for Identifying the Histologic Subtypes of Metastatic Cervical Lymphadenopathy. IEEE Trans Med Imaging 2023; 42:996-1008. [PMID: 36383594 DOI: 10.1109/tmi.2022.3222541] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Identifying squamous cell carcinoma and adenocarcinoma subtypes of metastatic cervical lymphadenopathy (CLA) is critical for localizing the primary lesion and initiating timely therapy. B-mode ultrasound (BUS), color Doppler flow imaging (CDFI), ultrasound elastography (UE) and dynamic contrast-enhanced ultrasound provide effective tools for identification but synthesis of modality information is a challenge for clinicians. Therefore, based on deep learning, rationally fusing these modalities with clinical information to personalize the classification of metastatic CLA requires new explorations. In this paper, we propose Multi-step Modality Fusion Network (MSMFN) for multi-modal ultrasound fusion to identify histological subtypes of metastatic CLA. MSMFN can mine the unique features of each modality and fuse them in a hierarchical three-step process. Specifically, first, under the guidance of high-level BUS semantic feature maps, information in CDFI and UE is extracted by modality interaction, and the static imaging feature vector is obtained. Then, a self-supervised feature orthogonalization loss is introduced to help learn modality heterogeneity features while maintaining maximal task-consistent category distinguishability of modalities. Finally, six encoded clinical information are utilized to avoid prediction bias and improve prediction ability further. Our three-fold cross-validation experiments demonstrate that our method surpasses clinicians and other multi-modal fusion methods with an accuracy of 80.06%, a true-positive rate of 81.81%, and a true-negative rate of 80.00%. Our network provides a multi-modal ultrasound fusion framework that considers prior clinical knowledge and modality-specific characteristics. Our code will be available at: https://github.com/RichardSunnyMeng/MSMFN.
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Sun L, You J, Li D, Zhang Z, Qin X, Pang W, Li P, Han Q, Li Y, Huang Z, Zhang X, Gong M, Yang H. Variants of a putative baseplate wedge protein extend the host range of Pseudomonas phage K8. Microbiome 2023; 11:18. [PMID: 36721246 PMCID: PMC9887876 DOI: 10.1186/s40168-022-01459-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 12/31/2022] [Indexed: 05/28/2023]
Abstract
BACKGROUND Narrow host range is a major limitation for phage applications, but phages can evolve expanded host range through adaptations in the receptor-binding proteins. RESULTS Here, we report that Pseudomonas phage K8 can evolve broader host range and higher killing efficiency at the cost of virion stability. Phage K8 host range mutant K8-T239A carries a mutant version of the putative baseplate wedge protein GP075, termed GP075m. While phage K8 adsorbs to hosts via the O-specific antigen of bacterial LPS, phage K8-T239A uses GP075m to also bind the bacterial core oligosaccharide, enabling infection of bacterial strains resistant to K8 infection due to modified O-specific antigens. This mutation in GP075 also alters inter-protein interactions among phage proteins, and reduces the stability of phage particles to environmental stressors like heat, acidity, and alkalinity. We find that a variety of mutations in gp075 are widespread in K8 populations, and that the gp075-like genes are widely distributed among the domains of life. CONCLUSION Our data show that a typical life history tradeoff occurs between the stability and the host range in the evolution of phage K8. Reservoirs of viral gene variants may be widely present in phage communities, allowing phages to rapidly adapt to any emerging environmental stressors. Video Abstract.
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Affiliation(s)
- Li Sun
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Jiajia You
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Donghang Li
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Zhiqiang Zhang
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Xuying Qin
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Wenjing Pang
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Peize Li
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Qingzhu Han
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Yueying Li
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Zhiwei Huang
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Xixi Zhang
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | | | - Hongjiang Yang
- Key Laboratory of Industrial Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China.
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Zhu Y, Jia Y, Pang W, Duan Y, Chen K, Nie F. Ultrasound contrast-enhanced patterns of sentinel lymph nodes: predictive value for nodal status and metastatic burden in early breast cancer. Quant Imaging Med Surg 2023; 13:160-170. [PMID: 36620166 PMCID: PMC9816714 DOI: 10.21037/qims-22-234] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 10/07/2022] [Indexed: 11/21/2022]
Abstract
Background In the post-Z0011 era, sentinel lymph node (SLN) status and metastatic burden determine whether axillary management entails conservative sentinel lymph node biopsy (SLNB) or radical axillary lymph node dissection (ALND) in breast cancer patients. However, SLN status and metastatic burden cannot be evaluated preoperatively in clinical practice. This study explored the predictive value of contrast-enhanced ultrasound (CEUS) patterns of SLN to assess the nodal status and metastatic burden in early breast cancer patients. Methods A retrospective study was conducted on 88 consecutive patients who were diagnosed with clinical T1-2N0 breast cancer between December 2020 and November 2021 at the Lanzhou University Second Hospital and scheduled for SLNB. Preoperative CEUS was performed to confirm the location and enhancement pattern of the SLN, and the conventional ultrasonic characteristics of the primary breast lesions and SLN were recorded. Intraoperative localized SLN and postoperative pathological results were used as the gold standard for comparison with preoperative ultrasound findings. Results CEUS successfully identified at least 1 SLN in 88 patients, with a total of 118 SLNs identified in the entire cohort. Univariate analysis showed that lesion size, blood flow grade, SLN longitudinal diameter, cortical thickness, and enhancement pattern were significant predictive features of SLN metastasis. Further multiple regression analysis indicated that the enhancement pattern of the SLN was an independent risk factor for SLN metastasis, with a sensitivity and a specificity of 84.2% (32/38) and 80.0% (40/50), respectively. Meanwhile, the SLN enhancement pattern could predict the lymph node metastasis burden (P<0.001). In patients presenting with a type I (homogeneous enhancement) or type II (heterogeneous enhancement) SLN, 91.5% (65/71) had ≤2 positive SLNs, whereas in patients with a type III (no enhancement) SLN, 70.6% (12/17) had >2 metastatic nodes. Conclusions The contrast-enhanced pattern of the SLN is an independent risk factor for SLN status. Patients presenting with a type I or type II SLN enhanced pattern are unlikely to have high-burden metastases detected at their final surgical treatment and omission of ALND may be appropriate.
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Affiliation(s)
- Yangyang Zhu
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Yingying Jia
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Wenjing Pang
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Ying Duan
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Kundi Chen
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Fang Nie
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China;,Gansu Province Clinical Research Center for Ultrasonography, Lanzhou, China
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Hou L, Hou Y, Liang Y, Chen B, Zhang X, Wang Y, Zhou K, Zhong T, Long B, Pang W, Wang L, Han X, Li L, Xu C, Gross I, Gaiddon C, Fu W, Yao H, Meng X. Anti-tumor effects of P-LPK-CPT, a peptide-camptothecin conjugate, in colorectal cancer. Commun Biol 2022; 5:1248. [PMID: 36376440 PMCID: PMC9663589 DOI: 10.1038/s42003-022-04191-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 10/31/2022] [Indexed: 11/16/2022] Open
Abstract
To explore highly selective targeting molecules of colorectal cancer (CRC) is a challenge. We previously identified a twelve-amino acid peptide (LPKTVSSDMSLN, namely P-LPK) by phage display technique which may specifically binds to CRC cells. Here we show that P-LPK selectively bind to a panel of human CRC cell lines and CRC tissues. In vivo, Gallium-68 (68Ga) labeled P-LPK exhibits selective accumulation at tumor sites. Then, we designed a peptide-conjugated drug comprising P-LPK and camptothecin (CPT) (namely P-LPK-CPT), and found P-LPK-CPT significantly inhibits tumor growth with fewer side effects in vitro and in vivo. Furthermore, through co-immunoprecipitation and molecular docking experiment, the glutamine transporter solute carrier 1 family member 5 (SLC1A5) was identified as the possible target of P-LPK. The binding ability of P-LPK and SLC1A5 is verified by surface plasmon resonance and immunofluorescence. Taken together, P-LPK-CPT is highly effective for CRC and deserves further development as a promising anti-tumor therapeutic for CRC, especially SLC1A5-high expression type. A peptide that specifically targets amino acid transporter SLC1A5 in colorectal cancer cells is identified and conjugated with camptothecin to show selective cytotoxicity to colorectal cancer cells in preclinical models.
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Yeo JL, Gulsin GS, Dattani A, Brady EM, Bilak JM, Ayton SL, Moss AJ, Pang W, Boulos S, House MJ, St Pierre TG, McCann GP. Association of hepatic steatosis with subclinical cardiac dysfunction in asymptomatic people with type 2 diabetes. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Non-alcoholic fatty liver disease is highly prevalent among people with type 2 diabetes (T2D) and is an emerging risk factor for heart failure with preserved ejection fraction (HFpEF). Whether excess liver adiposity is simply a marker of the coexisting adverse cardiometabolic risk profile or independently contributes to the development of HFpEF is unclear.
Purpose
To assess the association between liver fat fraction and subclinical cardiac dysfunction in adults with T2D.
Methods
Prospective cross-sectional study. Two-hundred and thirty-eight adults with T2D (mean age 63±7 years, 62% males, HbA1c 7.2±1.5%, diabetes duration 10±8 years) with no signs, symptoms, or evidence of cardiovascular disease and 40 age-, sex-, and ethnicity-matched non-diabetic controls (mean age 61±8 years, 63% males, HbA1c 5.2±1.2%) underwent comprehensive phenotyping with echocardiography and multiparametric cardiac MRI including adenosine stress and rest perfusion. Volumetric liver fat fraction (VLFF) was measured using a histologically validated, proprietary MRI technique blinded to all participant details. Inter-study reproducibility was assessed in participants (n=28) who underwent a repeat MRI within two weeks. Linear regression analysis was performed to assess any independent associations between VLFF and identified markers of subclinical cardiac dysfunction in subjects with T2D.
Results
People with T2D had evidence of concentric left ventricular (LV) remodelling (higher LV mass/volume), extracellular matrix expansion (higher ECV fraction), both systolic and diastolic dysfunction (lower global longitudinal systolic strain and E/A ratio, respectively), and coronary microvascular dysfunction (lower myocardial perfusion reserve) (Table 1). VLFF demonstrated excellent inter-study reproducibility with an intra-class correlation coefficient (ICC) of 0.988 (0.974–0.994). T2Ds had higher VLFF compared to controls [7.5 (3.8–13.7)% vs 2.9 (1.7–4.7)%, p<0.001]. In multivariable regression analysis adjusting for age, sex, ethnicity, body mass index, ambulatory systolic blood pressure, HbA1c, and low-density lipoprotein, VLFF (β=−0.161, p=0.027) was independently associated with E/A, but not other imaging measures of subclinical cardiac dysfunction.
Conclusion
Liver fat fraction is elevated in people with T2D and is independently associated with early LV diastolic dysfunction. These results add to the growing evidence that ectopic fat plays an important role in the pathogenesis of HFpEF and may be a potential target for intervention.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): National Institute for Health Research (NIHR) United Kingdom through a Research Professorship award (RP-2017-08-ST2-007).British Heart Foundation through a Clinical Research Training Fellowship (FS/16/47/32190).
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Affiliation(s)
- J L Yeo
- University of Leicester and the Leicester NIHR Biomedical Research Centre , Leicester , United Kingdom
| | - G S Gulsin
- University of Leicester and the Leicester NIHR Biomedical Research Centre , Leicester , United Kingdom
| | - A Dattani
- University of Leicester and the Leicester NIHR Biomedical Research Centre , Leicester , United Kingdom
| | - E M Brady
- University of Leicester and the Leicester NIHR Biomedical Research Centre , Leicester , United Kingdom
| | - J M Bilak
- University of Leicester and the Leicester NIHR Biomedical Research Centre , Leicester , United Kingdom
| | - S L Ayton
- University of Leicester and the Leicester NIHR Biomedical Research Centre , Leicester , United Kingdom
| | - A J Moss
- University of Leicester and the Leicester NIHR Biomedical Research Centre , Leicester , United Kingdom
| | - W Pang
- Resonance Health Ltd., Burswood , Western Australia , Australia
| | - S Boulos
- Resonance Health Ltd., Burswood , Western Australia , Australia
| | - M J House
- University of Western Australia, School of Physics , Perth , Australia
| | - T G St Pierre
- University of Western Australia, School of Physics , Perth , Australia
| | - G P McCann
- University of Leicester and the Leicester NIHR Biomedical Research Centre , Leicester , United Kingdom
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Cai W, Zhang JY, Chen HL, Yang YW, Wang J, Pang W, Zhou LJ. [Infective intracranial aneurysm after valve replacement in a patient with infective endocarditis]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:600-602. [PMID: 35705470 DOI: 10.3760/cma.j.cn112148-20210825-00733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- W Cai
- Department of Neurosurgery, Affiliated Suqian First People's Hospital of Nanjing Medical University, Suqian 223800, China
| | - J Y Zhang
- Department of Neurosurgery, Affiliated Suqian First People's Hospital of Nanjing Medical University, Suqian 223800, China
| | - H L Chen
- Department of Neurosurgery, Affiliated Suqian First People's Hospital of Nanjing Medical University, Suqian 223800, China
| | - Y W Yang
- Department of Neurosurgery, Affiliated Suqian First People's Hospital of Nanjing Medical University, Suqian 223800, China
| | - J Wang
- Department of Neurosurgery, Affiliated Suqian First People's Hospital of Nanjing Medical University, Suqian 223800, China
| | - W Pang
- Department of Neurosurgery, Affiliated Suqian First People's Hospital of Nanjing Medical University, Suqian 223800, China
| | - L J Zhou
- Medical Imaging Center, Affiliated Hospital of Yangzhou University, Yangzhou 225012, China
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Su J, Pang W, Zhang A, Li L, Yao W, Dai X. Exosomal miR-19a decreases insulin production by targeting Neurod1 in pancreatic cancer associated diabetes. Mol Biol Rep 2021; 49:1711-1720. [PMID: 34854011 DOI: 10.1007/s11033-021-06980-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/17/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND New onset diabetes mellitus demonstrates a roughly correlation with pancreatic cancer (PaC), which is unique in PaC and was named as PaC-induced DM, but the inner mechanism remains unclear. Exosomes mediate intercellular communication and bearing microRNAs might be direct constituent of effect in target cells. METHODS AND RESULTS The isolated exosomes from PaC cells were used to treat pancreatic β cells or the primary mice islets, and the glucose stimulated insulin secretions were measured. We validated the exosomal miR-19a from PaC cells to be an important mediator in the down regulation of insulin secretion by targeting Neurod1, the validated gene involved in insulin secretion, by using the quantitative real-time PCR, western blot, and promoter luciferase activity. The relative insulin, cAMP and Ca2+ expressions were also assayed to verify the inverse correlation between cancerous miR-19a and pancreatic islets Neurod1. CONCLUSIONS Our study indicated that signal changes between cancer cells and β cells via exosomes might be important in the pathogenesis of PaC-induced DM and supplemented the pathogenesis of PaC-induced DM and provide a possible access of PaC screening strategy.
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Affiliation(s)
- Jiaojiao Su
- Department of Gastroenterology, Lu'an Hospital of Anhui Medical University, Lu'an, China.,Department of Gastroenterology, Lu'an People's Hospital of Anhui Province, Lu'an, China
| | - Wenjing Pang
- Digestive Disease Research and Clinical Translation Center, Shanghai Jiaotong University, Shanghai, China. .,Department of Gastroenterology, Shanghai Jiaotong University School of Medicine Affiliating Shanghai 9th People's Hospital, 639, Zhi Zao Ju Road, Shanghai, 200001, China.
| | - Aisen Zhang
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical, Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.,Department of Gerontology, Jiangsu People's Hospital Affiliating to Nanjing Medical University, Nanjing, China
| | - Lei Li
- Digestive Disease Research and Clinical Translation Center, Shanghai Jiaotong University, Shanghai, China.,Department of Gastroenterology, Shanghai Jiaotong University School of Medicine Affiliating Shanghai 9th People's Hospital, 639, Zhi Zao Ju Road, Shanghai, 200001, China
| | - Weiyan Yao
- Department of Gastroenterology, Shanghai Jiaotong University School of Medicine Affiliating Shanghai Ruijin Hospital, Shanghai, China
| | - Xin Dai
- Department of Gastroenterology, Shanghai Jiaotong University School of Medicine Affiliating Shanghai Ruijin Hospital, Shanghai, China.
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Wang Y, Zhu L, Guo M, Sun G, Zhou K, Pang W, Cao D, Tang X, Meng X. Correction to: Histone methyltransferase WHSC1 inhibits colorectal cancer cell apoptosis via targeting anti-apoptotic BCL2. Cell Death Discov 2021; 7:302. [PMID: 34675194 PMCID: PMC8531130 DOI: 10.1038/s41420-021-00416-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Yu Wang
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Liming Zhu
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Mei Guo
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Gang Sun
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Kun Zhou
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wenjing Pang
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Dachun Cao
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Xin Tang
- Departments of Geriatrics, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Xiangjun Meng
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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12
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Pang W, Yao W, Dai X, Zhang A, Hou L, Wang L, Wang Y, Huang X, Meng X, Li L. Pancreatic cancer-derived exosomal microRNA-19a induces β-cell dysfunction by targeting ADCY1 and EPAC2. Int J Biol Sci 2021; 17:3622-3633. [PMID: 34512170 PMCID: PMC8416731 DOI: 10.7150/ijbs.56271] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 08/08/2021] [Indexed: 12/21/2022] Open
Abstract
New-onset diabetes mellitus has a rough correlation with pancreatic cancer (PaC), but the underlying mechanism remains unclear. This study aimed to explore the exosomal microRNAs and their potential role in PaC-induced β-cell dysfunction. The pancreatic β cells were treated with isolated exosomes from PaC cell lines, SW1990 and BxPC-3, before measuring the glucose-stimulated insulin secretion (GSIS), validating that SW1990 and BxPC-3 might disrupt GSIS of both β cell line MIN6 and primary mouse pancreatic islets. The difference in expression profiles between exosomes and exosome-free medium of PaC cell lines was further defined, revealing that miR-19a secreted by PaC cells might be an important signaling molecule in this process. Furthermore, adenylyl cyclase 1 (Adcy1) and exchange protein directly activated by cAMP 2 (Epac2) were verified as the direct targets of exogenous miR-19a, which was involved in insulin secretion. These results indicated that exosomes might be an important mediator in the pathogenesis of PaC-DM, and miR-19a might be the effector molecule. The findings shed light on the pathogenesis of PaC-DM.
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Affiliation(s)
- Wenjing Pang
- Department of Gastroenterology, Shanghai Jiaotong University School of Medicine affiliating Shanghai 9th People's Hospital, Shanghai, China.,Digestive Disease Research and Clinical Translation Center, Shanghai Jiaotong University, Shanghai, China
| | - Weiyan Yao
- Department of Gastroenterology, Shanghai Jiaotong University School of Medicine affiliating Shanghai Ruijin Hospital, Shanghai, China
| | - Xin Dai
- Department of Gastroenterology, Shanghai Jiaotong University School of Medicine affiliating Shanghai Ruijin Hospital, Shanghai, China
| | - Aisen Zhang
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical, Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.,Department of Gerontology, Jiangsu People's Hospital affiliating to Nanjing Medical University, Nanjing, China
| | - Lidan Hou
- Department of Gastroenterology, Shanghai Jiaotong University School of Medicine affiliating Shanghai 9th People's Hospital, Shanghai, China.,Digestive Disease Research and Clinical Translation Center, Shanghai Jiaotong University, Shanghai, China
| | - Lei Wang
- Department of Gastroenterology, Shanghai Jiaotong University School of Medicine affiliating Shanghai 9th People's Hospital, Shanghai, China.,Digestive Disease Research and Clinical Translation Center, Shanghai Jiaotong University, Shanghai, China
| | - Yu Wang
- Department of Gastroenterology, Shanghai Jiaotong University School of Medicine affiliating Shanghai 9th People's Hospital, Shanghai, China.,Digestive Disease Research and Clinical Translation Center, Shanghai Jiaotong University, Shanghai, China
| | - Xin Huang
- Department of Gastroenterology, Shanghai Jiaotong University School of Medicine affiliating Shanghai 9th People's Hospital, Shanghai, China.,Digestive Disease Research and Clinical Translation Center, Shanghai Jiaotong University, Shanghai, China
| | - Xiangjun Meng
- Department of Gastroenterology, Shanghai Jiaotong University School of Medicine affiliating Shanghai 9th People's Hospital, Shanghai, China.,Digestive Disease Research and Clinical Translation Center, Shanghai Jiaotong University, Shanghai, China
| | - Lei Li
- Department of Gastroenterology, Shanghai Jiaotong University School of Medicine affiliating Shanghai 9th People's Hospital, Shanghai, China.,Digestive Disease Research and Clinical Translation Center, Shanghai Jiaotong University, Shanghai, China
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13
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Wang L, Pang W, Zhou K, Li L, Wang F, Cao W, Meng X. Characteristics of esophageal cancer in patients with head and neck squamous cell carcinoma. Transl Cancer Res 2021; 10:1954-1961. [PMID: 35116518 PMCID: PMC8799255 DOI: 10.21037/tcr-20-2880] [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] [Received: 09/13/2020] [Accepted: 04/08/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND We investigated the clinicopathological features of esophageal cancer in patients with a history of head and neck squamous cell carcinoma (HNSCC) with the intention of providing information regarding the characteristics of these patients. METHODS A retrospective study was performed in 32 cases of esophageal cancer with HNSCC who were diagnosed using upper gastrointestinal endoscopy between 2007 to 2017. Synchronous carcinoma (SC) group and metachronous carcinoma (MC) group was established based on whether esophageal cancer was diagnosed within 6 months after HNSCC diagnosis. The clinicopathological features of esophageal cancer and HNSCC, as well as follow-up treatment and survival, were analyzed in esophageal cancer patients in both groups. RESULTS There were 8 cases of 8 patients (7 males and 1 female) in the SC group and 24 cases of 22 patients (21 males and 1 female) in the MC group. The majority of esophageal cancer of HNSCC were male patients aged 50-69 years. The average interval time between diagnosis of esophageal cancer and HNSCC was 36.0±39.2 months (3.25±2.19 months for the SC group and 46.90±39.73 months for the MC group). Ninety-three-point-seven-five percent (30/32) of the patients had esophageal cancer within 6 years after HNSCC. The proportion of early esophageal cancer and successful surgical treatment in the SC group was significantly higher compared to the MC group (P<0.05). CONCLUSIONS Detection of esophageal cancer should be prioritized in HNSCC patients.
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Affiliation(s)
- Lei Wang
- Department of Gastroenterology, Shanghai Ninth Peoples’ Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wenjing Pang
- Department of Gastroenterology, Shanghai Ninth Peoples’ Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Kun Zhou
- Department of Gastroenterology, Shanghai Ninth Peoples’ Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Li
- Department of Gastroenterology, Shanghai Ninth Peoples’ Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Feng Wang
- Department of Thoracic Surgery, Shanghai Ninth Peoples’ Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Cao
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth Peoples’ Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiangjun Meng
- Department of Gastroenterology, Shanghai Ninth Peoples’ Hospital, Shanghai Jiao Tong University, Shanghai, China
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14
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Wang Y, Zhu L, Guo M, Sun G, Zhou K, Pang W, Cao D, Tang X, Meng X. Histone methyltransferase WHSC1 inhibits colorectal cancer cell apoptosis via targeting anti-apoptotic BCL2. Cell Death Discov 2021; 7:19. [PMID: 33469000 PMCID: PMC7815777 DOI: 10.1038/s41420-021-00402-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/02/2020] [Accepted: 12/23/2020] [Indexed: 12/25/2022] Open
Abstract
WHSC1 is a histone methyltransferase that facilitates histone H3 lysine 36 dimethylation (H3K36me2), which is a permissive mark associated with active transcription. In this study, we revealed how WHSC1 regulates tumorigenesis and chemosensitivity of colorectal cancer (CRC). Our data showed that WHSC1 as well as H3K36me2 were highly expressed in clinical CRC samples, and high WHSC1 expression is associated with poorer prognosis in OS patients. WHSC1 reduction promoted colon cancer cell apoptosis both in vivo and in vitro. We found that B cell lymphoma-2 (BCL2) expression, an anti-apoptotic protein, is markedly decreased in after WHSC1 depletion. Mechanistic characterization indicated that WHSC1 directly binds to the promoter region of BCL2 gene and regulate its H3K36 dimethylation level. What's more, our study indicated that WHSC1 depletion promotes chemosensitivity in CRC cells. Together, our results suggested that WHSC1 and H3K36me2 modification might be optimal therapeutic targets to disrupt CRC progression and WHSC1-targeted therapy might potentially overcome the resistance of chemotherapeutic agents.
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Affiliation(s)
- Yu Wang
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Liming Zhu
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Mei Guo
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Gang Sun
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Kun Zhou
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wenjing Pang
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Dachun Cao
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Xin Tang
- Departments of Geriatrics, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Xiangjun Meng
- Departments of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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15
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Hou Y, Hou L, Liang Y, Zhang Q, Hong X, Wang Y, Huang X, Zhong T, Pang W, Xu C, Zhu L, Li L, Fang J, Meng X. Corrigendum to "The p53-inducible CLDN7 regulates colorectal tumorigenesis and has prognostic significance" [Neoplasia 22 (2020) 590-603]. Neoplasia 2020; 22:661-662. [PMID: 33099121 DOI: 10.1016/j.neo.2020.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Yichao Hou
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lidan Hou
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yu Liang
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qingwei Zhang
- Division of Gastroenterology and Hepatology, Key Laboratory Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Xialu Hong
- Division of Gastroenterology and Hepatology, Key Laboratory Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Yu Wang
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xin Huang
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ting Zhong
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wenjing Pang
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ci Xu
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Liming Zhu
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Li
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jingyuan Fang
- Division of Gastroenterology and Hepatology, Key Laboratory Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Xiangjun Meng
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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16
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Hou Y, Hou L, Liang Y, Zhang Q, Hong X, Wang Y, Huang X, Zhong T, Pang W, Xu C, Zhu L, Li L, Fang J, Meng X. The p53-inducible CLDN7 regulates colorectal tumorigenesis and has prognostic significance. Neoplasia 2020; 22:590-603. [PMID: 32992138 PMCID: PMC7522441 DOI: 10.1016/j.neo.2020.09.001] [Citation(s) in RCA: 5] [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] [Received: 06/24/2020] [Revised: 08/28/2020] [Accepted: 09/01/2020] [Indexed: 12/24/2022] Open
Abstract
Most colorectal cancer (CRC) are characterized by allele loss of the genes located on the short arm of chromosome 17 (17p13.1), including the tumor suppressor p53 gene. Although important, p53 is not the only driver of chromosome 17p loss. In this study, we explored the biological and prognostic significance of genes around p53 on 17p13.1 in CRC. The Cancer Genome Atlas (TCGA) were used to identify differentially expressed genes located between 1000 kb upstream and downstream of p53 gene. The function of CLDN7 was evaluated by both in vitro and in vivo experiments. Quantitative real-time PCR, western blot, and promoter luciferase activity, immunohistochemistry were used to explore the molecular drivers responsible for the development and progression of CRC. The results showed that CLDN7, located between 1000 kb upstream and downstream of p53 gene, were remarkably differentially expressed in tumor and normal tissues. CLDN7 expression also positively associated with p53 level in different stages of the adenoma-carcinoma sequence. Both in vitro and in vivo assays showed that CLDN7 inhibited cell proliferation in p53 wild type CRC cells, but had no effects on p53 mutant CRC cells. Mechanistically, p53 could bind to CLDN7 promoter region and regulate its expression. Clinically, high CLDN7 expression was negatively correlated with tumor size, invasion depth, lymphatic metastasis and AJCC III/IV stage, but was positively associated with favorable prognosis of CRC patients. Collectively, our work uncovers the tumor suppressive function for CLDN7 in a p53-dependent manner, which may mediate colorectal tumorigenesis induced by p53 deletion or mutation.
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Affiliation(s)
- Yichao Hou
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Lidan Hou
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Yu Liang
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Qingwei Zhang
- Division of Gastroenterology and Hepatology, Key Laboratory Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai 200001, China
| | - Xialu Hong
- Division of Gastroenterology and Hepatology, Key Laboratory Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai 200001, China
| | - Yu Wang
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Xin Huang
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Ting Zhong
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Wenjing Pang
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Ci Xu
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Liming Zhu
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Lei Li
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Jingyuan Fang
- Division of Gastroenterology and Hepatology, Key Laboratory Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai 200001, China.
| | - Xiangjun Meng
- Department of Gastroenterology, Shanghai Nineth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China.
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17
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Xiao L, Pang W, Bi H, Han X. Cone beam CT-based measurement of the accessory mental foramina in the Chinese Han population. Exp Ther Med 2020; 20:1907-1916. [PMID: 32782499 PMCID: PMC7401220 DOI: 10.3892/etm.2020.8954] [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: 06/13/2019] [Accepted: 02/05/2020] [Indexed: 11/06/2022] Open
Abstract
Anatomical data of accessory mental foramina (AMFs) were investigated in a Chinese Han population using cone beam CT (CBCT). A retrospective analysis was performed on 527 selected sets of CBCT images. The average frequency and diameter of AMFs, the diameter of the ipsilateral mental foramen (MF), and the center distance and relative position between the AMFs and MF were measured and calculated by three professional dentists. Among the 527 patients, AMFs were identified in 36 cases (frequency 6.83%), of which 68.75% of AMFs were larger than 1 mm. The mean diameters of the AMFs and the ipsilateral MF were 1.32±0.61 mm and 3.26±0.90 mm, respectively. The average distance from the AMFs to the alveolar ridge crest (ARC) was 15.05±3.50 mm, and the average distance to the mandibular plane was 15.87±3.64 mm. The positions of the AMFs relative to the MF varied widely. The AMFs were mostly positioned distal-inferior to the ipsilateral MF and under the mandibular second premolars. Nutrient foramina around the MFs were distinguished from AMFs. The reference plane for measuring AMFs was suggested to be the mandibular plane to increase the repeatability and accuracy of the experiment. Standard planes were proposed to determine the relative position between AMFs and the MFs. Based on our results, we propose that for implant surgeries, the safety region of 2 mm above the MFs should be reevaluated. CBCT examination is recommended before the operation to identify important anatomical structures around the MF region and their variations and set the safety distance on an individual basis.
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Affiliation(s)
- Lei Xiao
- Department of Stomatology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Wenjing Pang
- Yantai No. 1 Middle School of Shandong, Yantai, Shandong 264000, P.R. China
| | - Hongguang Bi
- Department of Stomatology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Xuelian Han
- Department of Stomatology, Traditional Chinese Medicine Hospital of Rizhao, Rizhao, Shandong 276800, P.R. China
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18
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Xue L, Su D, Li D, Gao W, Yuan R, Pang W. Retraction Note to: miR-200 Regulates Epithelial-Mesenchymal Transition in Anaplastic Thyroid Cancer via EGF/EGFR Signaling. Cell Biochem Biophys 2019; 77:277. [PMID: 31363958 DOI: 10.1007/s12013-019-00879-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- L Xue
- Department of Endocrinology, Henan University Huaihe Hospital, Kaifeng, 475000, China
| | - D Su
- Department of Endocrinology, Henan University Huaihe Hospital, Kaifeng, 475000, China
| | - D Li
- Department of Endocrinology, Henan University Huaihe Hospital, Kaifeng, 475000, China
| | - W Gao
- Department of Endocrinology, Henan University Huaihe Hospital, Kaifeng, 475000, China
| | - R Yuan
- Department of Endocrinology, Henan University Huaihe Hospital, Kaifeng, 475000, China
| | - W Pang
- Department of Endocrinology, Henan University Huaihe Hospital, Kaifeng, 475000, China.
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19
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Huang D, Lim J, Binte Mohd Kahliab K, Tang T, Pang W, Laurensia Y, Cheah D, Tan S, Zhang X, Chow E, Lim S, Ong C. WHOLE GENOME SEQUENCING REVEALS POTENTIAL THERAPEUTIC STRATEGY FOR MEITL. Hematol Oncol 2019. [DOI: 10.1002/hon.18_2630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- D. Huang
- CMR; National Cancer Centre; Singapore Singapore
| | - J. Lim
- CMR; National Cancer Centre; Singapore Singapore
| | | | - T. Tang
- DMO; National Cancer Centre; Singapore Singapore
| | - W. Pang
- CMR; National Cancer Centre; Singapore Singapore
| | - Y. Laurensia
- CMR; National Cancer Centre; Singapore Singapore
| | - D. Cheah
- CMR; National Cancer Centre; Singapore Singapore
| | - S. Tan
- Pathology; National University of Singapore; Singapore Singapore
| | - X. Zhang
- Pharmacology; Cancer Science Institute; Singapore Singapore
| | - E. Chow
- Pharmacology; Cancer Science Institute; Singapore Singapore
| | - S. Lim
- DMO; National Cancer Centre; Singapore Singapore
| | - C. Ong
- CMR; National Cancer Centre; Singapore Singapore
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20
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Lim J, Huang D, Tang T, Cai Q, Tan D, Laurensia Y, Chia B, Rou-Jun P, Pang W, Cheah D, Ng C, Hong H, Tan J, Feng L, Chen J, Han B, Guo Y, Goh Y, Rötzschke O, Cheng C, Au-Yeung R, Chan T, Ng S, Kwong Y, Hwang W, Chng W, Tousseyn T, Tan P, Teh B, Khor C, Rozen S, Bei J, Lin T, Lim S, Ong C. WHOLE-GENOME SEQUENCING REVEALS IMMUNOTHERAPEUTIC OPTIONS FOR NATURAL-KILLER/T CELL LYMPHOMA PATIENTS. Hematol Oncol 2019. [DOI: 10.1002/hon.19_2630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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21
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Seo HS, Captur G, Ittermann B, Pang W, Keenan K, Kellman P, Nezafat R, Chaturvedi N, Hughes A, Moon JC. 27A medical device grade T2 phantom to quality control inflammation imaging by CMR. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez111.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H S Seo
- MRC Unit for Lifelong Health and Ageing at UCL, London, United Kingdom of Great Britain & Northern Ireland
| | - G Captur
- MRC Unit for Lifelong Health and Ageing at UCL, London, United Kingdom of Great Britain & Northern Ireland
| | - B Ittermann
- Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany
| | - W Pang
- Resonance Health (RH), Claremont, Australia
| | - K Keenan
- National Institutes of Standards and Technology(NIST), Boulder, United States of America
| | - P Kellman
- National Institutes of Health (NIH), Bethesda, United States of America
| | - R Nezafat
- Harvard Medical School, Department of Medicine, Boston, United States of America
| | - N Chaturvedi
- MRC Unit for Lifelong Health and Ageing at UCL, London, United Kingdom of Great Britain & Northern Ireland
| | - A Hughes
- MRC Unit for Lifelong Health and Ageing at UCL, London, United Kingdom of Great Britain & Northern Ireland
| | - J C Moon
- St. Bartholomew"s Hospital, Barts Heart Centre , Greater London, United Kingdom of Great Britain & Northern Ireland
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22
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Bai Y, Zheng Y, Pang W, Peng W, Wu H, Yao H, Li P, Deng W, Cheng J, Su W. Identification and Comparison of Constituents of Aurantii Fructus and Aurantii Fructus Immaturus by UFLC-DAD-Triple TOF-MS/MS. Molecules 2018; 23:molecules23040803. [PMID: 29601542 PMCID: PMC6017871 DOI: 10.3390/molecules23040803] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 03/23/2018] [Accepted: 03/23/2018] [Indexed: 12/12/2022] Open
Abstract
Although Aurantii Fructus (AF) and Aurantii Fructus Immaturus (AFI) are both the fruits of the same rutaceae plant at different stages of growth, they exert similar yet distinct clinical effects. The chemical composition is crucial for quality control as well as therapeutic application. To address this concern, it is significant to evaluate the similarities and differences of the constituents in both AF and AFI. The extract of AF and AFI were comprehensively analyzed by ultra fast liquid chromatography-photodiode array detector-triple-time of flight-tandem mass spectrometry (UFLC-DAD-Triple TOF-MS/MS). Among the 40 compounds detected, 19 metabolites were detected in both the AF and AFI; whereas 13 compounds were only detected in AF and five constituents were exclusively detected in AFI. In particular, even in AFI, three compounds were only identified in AFI (Citrus aurantium' L. and its cultivar). Among the 18 compounds confirmed by standard database, 13 compounds were reported in AF and AFI for the first time. Furthermore, the distinction was also revealed by the content of naringin, hesperidin, neohesperidin, and synephrine. The study directly contributed to the similarities and differences of AF and AFI. Herein, similarities and the differences in chemical profiles of AF and AFI could explain the current clinical applications.
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Affiliation(s)
- Yang Bai
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
- Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
| | - Yuying Zheng
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
- Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
| | - Wenjing Pang
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
- Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
| | - Wei Peng
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
- Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
| | - Hao Wu
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
- Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
| | - Hongliang Yao
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
- Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
| | - Panlin Li
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
- Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
| | - Wen Deng
- Key Laboratory of Ultrafine Granular Powder of Herbal Medicine technology and Application of state Administration, Zhongshan 528437, China.
| | - Jinle Cheng
- Key Laboratory of Ultrafine Granular Powder of Herbal Medicine technology and Application of state Administration, Zhongshan 528437, China.
| | - Weiwei Su
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
- Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
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Pang W, Sun X, Feng H, Wang J, Cui L, Cao Y. The role of regulatory T cells during Plasmodium chabaudi chabaudi AS infection in BALB/c mice. Parasite Immunol 2016; 38:439-50. [PMID: 27139002 DOI: 10.1111/pim.12333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 04/26/2016] [Indexed: 11/30/2022]
Abstract
An inappropriate immune response to parasite infection is one of the primary drivers of malaria pathogenesis. Regulatory T cells (Tregs), an important subset of CD4(+) T cells, can maintain self-tolerance and prevent autoimmune diseases. However, there is little consensus about their role in malaria pathogenesis. In this study, we transiently depleted Tregs (CD25(+) T cells) using an anti-CD25 mAb (7D4 clone) at different time points following Plasmodium chabaudi chabaudi AS infection in BALB/c mice and investigated the effect of depletion of Tregs in this model. In control mice, Tregs proliferated significantly and their suppressive function was enhanced after infection. IL-10 was increased drastically during infection. Depletion of Tregs at various time points can lead to divergent outcomes. When Tregs were depleted prior to or during the early phase of infection, most mice survived and had a robust Th1 immune response. In contrast, when Tregs were depleted close to peak parasitemia, all mice died as a result of inflammation. Taken together, these data suggest that in P. c. chabaudi AS-infected BALB/c mice, Tregs inhibit the Th1 response and macrophage activation, leading to increased parasite load; however, they also control inflammation-mediated pathology by secreting high levels of IL-10.
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Affiliation(s)
- W Pang
- Department of Immunology, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
| | - X Sun
- Department of Immunology, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
| | - H Feng
- Department of Immunology, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
| | - J Wang
- Department of Microbiology and Parasitology, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
| | - L Cui
- Department of Entomology, Pennsylvania State University, University Park, PA, USA
| | - Y Cao
- Department of Immunology, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
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Dai X, Pang W, Zhou Y, Yao W, Xia L, Wang C, Chen X, Zen K, Zhang CY, Yuan Y. Altered profile of serum microRNAs in pancreatic cancer-associated new-onset diabetes mellitus. J Diabetes 2016; 8:422-33. [PMID: 25991015 DOI: 10.1111/1753-0407.12313] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [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: 04/19/2015] [Revised: 05/06/2015] [Accepted: 05/08/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND New-onset diabetes mellitus in pancreatic cancer has been recognized as a paraneoplastic phenomenon caused by the existence of the tumor. Circulating microRNAs (miRNAs) are emerging as non-invasive biomarkers for the detection of various cancers. In the present study, we hypothesized that a specific serum miRNA profile exists in pancreatic cancer-associated new-onset diabetes mellitus (PaC-DM). METHODS Initial screening of differentially expressed miRNAs in pooled serum samples from 25 PaC-DM patients, 25 non-cancer new-onset type 2 diabetes mellitus (T2DM) patients, and 25 healthy controls was performed by TaqMan low-density arrays (TLDA). A stem-loop quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was conducted to confirm the relative concentrations of candidate miRNAs in 80 PaC-DM, 85 non-cancer new-onset T2DM patients, and 80 healthy controls. RESULTS The TLDA identified 16 serum miRNAs that were significantly increased in PaC-DM samples. A combination of six serum miRNAs (miR-483-5p, miR-19a, miR-29a, miR-20a, miR-24, miR-25) was selected by qRT-PCR as a biomarker for PaC-DM. The area under the receiver operating characteristic curve (AUC) for the six-miRNA panel training and validation sets was 0.959 (95% confidence interval [CI] 0.890-1.028) and 0.902 (95% CI 0.844-0.955), respectively. The combination of these six miRNAs enabled the discrimination of PaC-DM from non-cancer new-onset T2DM with an AUC of 0.885 (95% CI 0.784-0.986) and 0.887 (95% CI 0.823-0.952) for the training and validation sets, respectively. CONCLUSION The six-serum miRNA panel may have potential as a biomarker for the accurate diagnosis and discrimination of PaC-DM from healthy controls and non-cancer new-onset T2DM.
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Affiliation(s)
- Xin Dai
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wenjing Pang
- Department of Gastroenterology, Tianyou Hospital, Shanghai Tongji University School of Medicine, Shanghai, China
| | - Yufeng Zhou
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Weiyan Yao
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lu Xia
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Cheng Wang
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xi Chen
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Ke Zen
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Chen-Yu Zhang
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Yaozong Yuan
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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25
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Pang W, Su J, Wang Y, Feng H, Dai X, Yuan Y, Chen X, Yao W. Pancreatic cancer-secreted miR-155 implicates in the conversion from normal fibroblasts to cancer-associated fibroblasts. Cancer Sci 2015. [PMID: 26195069 PMCID: PMC4638007 DOI: 10.1111/cas.12747] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [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: 12/14/2022] Open
Abstract
Cancer-associated fibroblasts (CAF) are a major constituent of the pancreatic cancer microenvironment and that the meaning is as intended. Pancreatic cancer cells can induce normal fibroblasts to convert into CAF and, reciprocally, CAF promote tumor invasions and proliferations. The mechanism of the conversion from normal fibroblasts (NF) to CAF remains unclear. MicroRNA are short non-coding RNA involved in the post-transcription gene regulation, which have been defined as an imperative controller in tumor invasions, proliferations and colony formations. Microvesicles (MV) have been proved to be an important mediator of intercellular communication and can selectively transport secreted microRNA from a donor cell into a recipient cell. In this study, we isolated primary pancreatic fibroblasts from wild type C57 mice and co-cultured them with pancreatic cancer cell lines, BxPC-3 and SW1990, and observed the conversion from NF to CAF, or at least CAF-like cells. This phenomenon could also be replicated in primary fibroblasts treated with MV separated from a cancer cell media. We identified that miR-155 was upregulated in PaC-derived MV and we confirmed that normal fibroblasts could convert into CAF after MV containing miR-155 had been taken up. TP53INP1 is a target of miR-155 in fibroblasts and a downregulation of TP53INP1 protein levels could contribute to the fibroblasts' activation. These results indicated that pancreatic cancer cells might reprogram normal adjacent fibroblasts into CAF by means of secreted MV containing miR-155. Targeting the circulating microRNA might be a potential therapy for malignant tumors.
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Affiliation(s)
- Wenjing Pang
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Jiaojiao Su
- Department of Gastroenterology, First-affiliated Hospital, Anhui Medical School, Hefei, China.,Department of Gastroenterology, Lúan People's Hospital, Lúan Affiliated Hospital of Anhui Medical University, 21, Wanxi Road, 237000, Lúan, China
| | - Yalei Wang
- Department of Gastroenterology, First-affiliated Hospital, Anhui Medical School, Hefei, China
| | - Hui Feng
- Department of Gastroenterology, First-affiliated Hospital, Anhui Medical School, Hefei, China
| | - Xin Dai
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Yaozong Yuan
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Xi Chen
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical, Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Weiyan Yao
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University, Shanghai, China
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Dai X, Chen X, Chen Q, Shi L, Liang H, Zhou Z, Liu Q, Pang W, Hou D, Wang C, Zen K, Yuan Y, Zhang CY, Xia L. MicroRNA-193a-3p Reduces Intestinal Inflammation in Response to Microbiota via Down-regulation of Colonic PepT1. J Biol Chem 2015; 290:16099-115. [PMID: 25931122 DOI: 10.1074/jbc.m115.659318] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [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: 04/15/2015] [Indexed: 12/12/2022] Open
Abstract
Intestinal inflammation is characterized by epithelial disruption, leading to the loss of barrier function, recruitment of immune cells, and host immune responses to gut microbiota. PepT1, a di/tripeptide transporter that uptakes bacterial products, is up-regulated in inflamed colon tissue, which implies its role in bacterium-associated intestinal inflammation. Although microRNA (miRNA)-mediated gene regulation has been found to be involved in various processes of inflammatory bowel disease (IBD), the biological function of miRNAs in the pathogenesis of IBD remains to be explored. In this study we detected miRNA expression patterns in colon tissues during colitis and investigated the mechanism underlying the regulation of colonic PepT1 by miRNAs. We observed an inverse correlation between PepT1 and miR-193a-3p in inflamed colon tissues with active ulcerative colitis, and we further demonstrated that miR-193a-3p reduced PepT1 expression and activity as a target gene and subsequently suppressed the NF-κB pathway. Intracolonic delivery of miR-193a-3p significantly ameliorated dextran sodium sulfate-induced colitis, whereas the overexpression of colonic PepT1 via PepT1 3'-untranslated region mutant lentivirus vector abolished the anti-inflammatory effect of miR-193a-3p. Furthermore, antibiotic treatment eliminated the difference in the dextran sodium sulfate-induced inflammation between the presence and absence of miR-193a-3p. These findings suggest that miR-193a-3p regulation of PepT1 mediates the uptake of bacterial products and is a potent mechanism during the colonic inflammation process. Overall, we believe miR-193a-3p may be a potent regulator of colonic PepT1 for maintaining intestinal homeostasis.
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Affiliation(s)
- Xin Dai
- From the Department of Gastroenterology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, 197 Ruijin Second Road, Shanghai 200025, China and
| | - Xi Chen
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Qun Chen
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Lei Shi
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Hongwei Liang
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Zhen Zhou
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Qian Liu
- From the Department of Gastroenterology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, 197 Ruijin Second Road, Shanghai 200025, China and
| | - Wenjing Pang
- From the Department of Gastroenterology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, 197 Ruijin Second Road, Shanghai 200025, China and
| | - Dongxia Hou
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Cheng Wang
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Ke Zen
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Yaozong Yuan
- From the Department of Gastroenterology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, 197 Ruijin Second Road, Shanghai 200025, China and
| | - Chen-Yu Zhang
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Lu Xia
- From the Department of Gastroenterology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, 197 Ruijin Second Road, Shanghai 200025, China and
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Li JZ, Wang SX, Qin XQ, Xu Y, Pang W, E J, Zheng X. [Correlation between urinary sediment spectra and pathological patterns of renal biopsies]. Beijing Da Xue Xue Bao Yi Xue Ban 2014; 46:920-925. [PMID: 25512284] [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: 06/04/2023]
Abstract
OBJECTIVE To investigate the clinical value of urinary sediment analysis, a non-invasive diagnostic means, in the evaluation of pathological patterns of renal diseases. METHODS A total of 1 140 pairs of matched renal biopsies and fresh fasting morning urine specimens were collected from hospitalized patients in Peking University First Hospital. Their urinary sediments were examined with phase-contrast microscopy; the 24 h urine proteins were measured. Based on urinary sediment features combined with urine protein amount, the spectra of the urine sediments were classified into four types, Type I: hematuria-dominant, with multiple cells and casts; Type II: proteinuria-dominant, with hyaline or fine-granular casts but scanty cells; Type III: renal tubular epithelial cell(RTEC)-dominant, minor proteinuria; Type IV: non-specificurine sediments,minor proteinuria. According to the pathological lesions detected in renal biopsies, the renal diseases were classified into three patterns: proliferative glomerulopathy(P-GP), non-proliferative glomerulopathy (NP-GP) and tubulointerstitial nephropathy(TIN). The urinary sediment spectra of different pathological patterns and the correlation between urinary sediment types and pathological patterns were analyzed. Statistical analyses were performed using kappa test, and χ(2) test, and significance was accepted at P<0.05. RESULTS (1) Of the 840 cases of matched urine samples and renal biopsies, 419 cases were diagnosed with P-GP; 375 cases with NP-GP; 46 cases with TIN respectively. (2) The spectra of urine sediments were associated with pathological patterns of the renal biopsies, and 84.0% of the patients with P-GP manifested type I urine sediments; 93.1% of the patients with NP-GP had type II urine sediments; 67.4% of the patients with TIN had type III urine sediments. (3) The correlation between the urinary sediment types and renal pathological patterns was validated in an additional 300 matched samples. The positive predictive values of urinary sediment spectra in predicting renal pathological lesions were 84.8% for typeI to P-GP, 86.0% for type II to NP-GP and 73.7% for type III to TIN, respectively. CONCLUSION As a non-invasive diagnostic means, the urinary sediment analysis is valuable in the evaluation of pathological patterns of renal diseases.
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Affiliation(s)
- J Z Li
- Renal Division, Department of Medicine, Peking University First Hospital; Institute of Nephrology, Peking University; Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of Chronic Kidney Disease Prevention and Treatment, Ministry of Education,Beijing 100034, China
| | - S X Wang
- Renal Division, Department of Medicine, Peking University First Hospital; Institute of Nephrology, Peking University; Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of Chronic Kidney Disease Prevention and Treatment, Ministry of Education,Beijing 100034, China
| | - X Q Qin
- Department of Biostatistics, Peking University First Hospital,Beijing 100034,China
| | - Y Xu
- Renal Division, Department of Medicine, Peking University First Hospital; Institute of Nephrology, Peking University; Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of Chronic Kidney Disease Prevention and Treatment, Ministry of Education,Beijing 100034, China
| | - W Pang
- Renal Division, Department of Medicine, Peking University First Hospital; Institute of Nephrology, Peking University; Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of Chronic Kidney Disease Prevention and Treatment, Ministry of Education,Beijing 100034, China
| | - J E
- Renal Division, Department of Medicine, Peking University First Hospital; Institute of Nephrology, Peking University; Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of Chronic Kidney Disease Prevention and Treatment, Ministry of Education,Beijing 100034, China
| | - X Zheng
- Renal Division, Department of Medicine, Peking University First Hospital; Institute of Nephrology, Peking University; Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of Chronic Kidney Disease Prevention and Treatment, Ministry of Education,Beijing 100034, China
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Su J, Liang H, Yao W, Wang N, Zhang S, Yan X, Feng H, Pang W, Wang Y, Wang X, Fu Z, Liu Y, Zhao C, Zhang J, Zhang CY, Zen K, Chen X, Wang Y. MiR-143 and MiR-145 regulate IGF1R to suppress cell proliferation in colorectal cancer. PLoS One 2014; 9:e114420. [PMID: 25474488 PMCID: PMC4256231 DOI: 10.1371/journal.pone.0114420] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [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: 05/19/2014] [Accepted: 11/10/2014] [Indexed: 12/14/2022] Open
Abstract
Insulin-like growth factor 1 receptor (IGF1R) is a transmembrane receptor that is activated by insulin-like growth factor 1 (IGF-1) and by a related hormone called IGF-2. It belongs to the large class of tyrosine kinase receptors and plays an important role in colorectal cancer etiology and progression. In this study, we used bioinformatic analyses to search for miRNAs that potentially target IGF1R. We identified specific target sites for miR-143 and miR-145 (miR-143/145) in the 3'-untranslated region (3'-UTR) of the IGF1R gene. These miRNAs are members of a cluster of miRNAs that have been reported to exhibit tumor suppressor activity. Consistent with the bioinformatic analyses, we identified an inverse correlation between miR-143/145 levels and IGF1R protein levels in colorectal cancer tissues. By overexpressing miR-143/145 in Caco2, HT29 and SW480 colorectal cancer cells, we experimentally validated that miR-143/145 directly recognizes the 3'-UTR of the IGF1R transcript and regulates IGF1R expression. Furthermore, the biological consequences of the targeting of IGF1R by miR-143/145 were examined by cell proliferation assays in vitro. We demonstrated that the repression of IGF1R by miR-143/145 suppressed the proliferation of Caco2 cells. Taken together, our findings provide evidence for a role of the miR-143/145 cluster as a tumor suppressor in colorectal cancer through the inhibition of IGF1R translation.
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Affiliation(s)
- Jiaojiao Su
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Hongwei Liang
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Weiyan Yao
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Nan Wang
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Suyang Zhang
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Xin Yan
- The Comprehensive Cancer Center of Drum Tower Hospital affiliated to Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, Jiangsu 210008, China
| | - Hui Feng
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Wenjing Pang
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Yanbo Wang
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Xueliang Wang
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Zhen Fu
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Yanqing Liu
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Chihao Zhao
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Junfeng Zhang
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Chen-Yu Zhang
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Ke Zen
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
| | - Xi Chen
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, China
- * E-mail: (XC); (YW)
| | - Yalei Wang
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
- * E-mail: (XC); (YW)
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Ford SJ, Bedford MR, Pang W, Wood A, Iqbal T, Tselepis C, Tucker O. A comparative study of the iron status of patients with oesophageal adenocarcinoma to determine suitability for a clinical trial of iron chelation therapy. Ann R Coll Surg Engl 2014; 96:275-8. [PMID: 24780018 DOI: 10.1308/003588414x13946184900282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION The incidence of oesophageal adenocarcinoma (OAC) is rising dramatically and overall survival remains extremely poor. Iron has been shown to potentiate tumourigenesis in OAC, and iron chelation therapy demonstrates promise in vivo as an adjunct to neoadjuvant and palliative chemotherapy. OAC, however, has traditionally been associated with iron deficiency anaemia. The aim of this study was therefore to formally quantify the iron status of OAC patients in order to guide the design of future clinical trials involving iron chelation therapy. METHODS Demographic and cancer specific data were collected prospectively from all patients presenting with OAC and gastric adenocarcinoma (GAC). Patients had haemoglobin, serum iron, serum ferritin and serum transferrin receptor (sTfR) levels measured to assess systemic iron status. In addition, the sTfR/log ferritin (sTfR-F) index was calculated. RESULTS Average haemoglobin, serum iron, serum ferritin, sTfR and sTfR-F index values for all patients presenting with OAC were within normal sex specific reference ranges. No statistical difference in iron status was observed between OAC patients presenting with resectable and advanced OAC. Patients with OAC are relatively iron replete compared with those presenting with GAC. Iron parameters were not significantly altered by standard neoadjuvant chemotherapy. CONCLUSIONS Patients presenting with resectable or advanced OAC could be considered as candidates for a clinical trial of iron chelation therapy as an addition to standard neoadjuvant or palliative treatments.
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Pang W, Zhang Y, Zhao N, Darwiche SS, Fu X, Xiang W. Low expression of Mfn2 is associated with mitochondrial damage and apoptosis in the placental villi of early unexplained miscarriage. Placenta 2013; 34:613-8. [PMID: 23601695 DOI: 10.1016/j.placenta.2013.03.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 03/25/2013] [Accepted: 03/28/2013] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Early miscarriage is the most common complication of pregnancy and in many cases the etiology is not clearly understood. We aim to profile the expression of Mfn2 and mitochondrial damage in villous tissues, in order to determine the underlying mechanism of unexplained miscarriage. METHODS We investigated placental villous samples of 30 women with early unexplained miscarriage (miscarriage group) and 30 women with normal pregnancy (control group). Immunohistochemistry and western blotting were used to detect the Mfn2 expression. We observed trophoblastic cell apoptosis with TUNEL and analyzed Bcl-2 and Bax levels by western blotting. Transmission electron microscopy was used to analyze mitochondrial morphology and phosphomolybdic acid colorimetric method was used to measure the ATP content of all villous samples. RESULTS Mfn2 staining showed extra-nuclear localization in the trophoblastic cells. Compared with the control group, the levels of Mfn2 and Bcl-2 were markedly decreased (P < 0.01), while both the levels of Bax protein and apoptosis index (AI) were increased in the miscarriage group (P < 0.01). Mfn2 levels positively correlated with Bcl-2, but negatively correlated with Bax. Moreover, compared to the control group (33.8 ± 6.5 μmol/g), ATP levels in the miscarriage group were significantly decreased (15.8 ± 4.8 μmol/g). In addition, obvious impairment of mitochondrial function was observed in trophoblastic cells from the unexplained miscarriage group. CONCLUSION Mitochondrial morphologic and functional changes were observed in trophoblastic cells, and in relation with apoptosis, may be correlated with low levels of Mfn2. Deficient expression of Mfn2 in trophoblastic cells could be an important cause of early miscarriage.
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Affiliation(s)
- W Pang
- Family Planning Research Institute, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, China
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Crow WT, Luc JE, Sekora NS, Pang W. Interaction Between Belonolaimus longicaudatus and Helicotylenchus pseudorobustus on Bermudagrass and Seashore Paspalum Hosts. J Nematol 2013; 45:17-20. [PMID: 23589655 PMCID: PMC3625127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Indexed: 06/02/2023] Open
Abstract
Belonolaimus longicaudatus and Helicotylenchus pseudorobustus are among the most common nematode parasites of turfgrasses in Florida. Bermudagrass (Cynodon dactylon × C. transvaalensis) and seashore paspalum (Paspalum vaginatum) are the two turf species most commonly used on Florida golf courses. This paper explores the interactions between B. longicaudatus and H. pseudorobustus on bermudagrass and seashore paspalum hosts. Data collected from thousands of nematode samples submitted to the Florida Nematode Assay Lab over a 8-yr period revealed a negative relationship between B. longicaudatus and H. pseudorobustus on bermudagrass, but not seashore paspalum. In a multi-year field plot experiment using multiple cultivars of bermudagrass, and seashore paspalum B. longicaudatus and H. pseudorobustus were negatively related on both turf species. Greenhouse trials where multiple cultivars of both turf species were inoculated with different combinations of B. longicaudatus and H. pseudorobustus found that each nematode species was inhibitory to the other on both host species. Belonolaimus longicaudatus and H. pseudorobustus clearly impact each other on turfgrass hosts, although the mechanism of the nematode-nematode interactions is unknown.
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Kong HY, Cheng DM, Pang W, Sun SD, Liu J, Huang CY, Jiang YG. Homocysteine levels and cognitive function scores measured with MMSE and BCAT of middle-aged and elderly subjects in Tianjin City. J Nutr Health Aging 2013; 17:527-32. [PMID: 23732549 DOI: 10.1007/s12603-013-0026-7] [Citation(s) in RCA: 16] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE China is proceeding into the aging society. There are near 6 million elderly suffering senile dementia,while cognitive impairment is an important clinical feature in dementia. The factors involved in cognitive dysfunction in the middle-aged and the elderly persons were investigated. DESIGN Cross-sectional study. SETTING Community dwellers and nursing home residents in Tianjin, China. SUBJECTS Total of 662 subjects(284 men and 378 women) aged 55-93. METHODS A designed questionnaire was used to collect their demographic data, information of disease and medication, and life style. Mini-mental state examination (MMSE) and Basic Cognitive Aptitude Tests (BCAT) software were applied to evaluate their cognitive function. Serum total homocysteine (tHcy) level was quantified by enzyme conversion method. A multiple linear stepwise regression analysis was applied to find the influencing factors of cognitive function. RESULTS The average serum tHcy concentrations was 15.95±7.29 μmol/L, while the prevalence of hyperhomocysteinemia (HHE) was 45.4%. The average serum tHcy level and prevalence of HHE were higher in men than those in women after ruling out the age differences. The mean MMSE and BCAT scores were 26.74±2.71 and 50.26±18.84 respectively. The BCAT score was negatively correlated with age and positively correlated with education. Multiple linear stepwise regression equations showed that the P value was less than 0.001, the BCAT regression equation showed that the R2=0.453. Serum tHcy concentration was negatively correlated with total scores of BCAT, digit copy, Chinese character comparison, mental arithmetic, Chinese character rotation and recall answer of mental arithmetic test. Total scores of BCAT were negatively correlated with education, inhabitancy, serum tHcy concentration and age. In addition, Chinese character rotation was correlated with tea consumption. Remembrance and recognition of dual words and nonsense figures was correlated with income level. CONCLUSIONS Hyperhomocysteinemia is associated with cognitive impairment in the middle-aged and the elderly persons in Tianjin. The BCAT scores could well represent the detailed cognitive function in elderly and negatively correlate with age, but positively correlated with education level. Serum tHcy concentration was negatively correlated with total BCAT scores.
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Affiliation(s)
- H Y Kong
- Department of Nutrition, Institute of Health and Environmental Medicine, Academy of Military Medical Sciences, Tianjin, 300050, PR China
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Ahmadzai AA, Trevisan J, Pang W, Patel II, Fullwood NJ, Bruce SW, Pant K, Carmichael PL, Scott AD, Martin FL. Classification of test agent-specific effects in the Syrian hamster embryo assay (pH 6.7) using infrared spectroscopy with computational analysis. Mutagenesis 2012; 27:375-82. [DOI: 10.1093/mutage/ges003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Pang W, Crow WT, Luc JE, McSorley R, Giblin-Davis RM, Kenworthy KE, Kruse JK. Comparison of Water Displacement and WinRHIZO Software for Plant Root Parameter Assessment. Plant Dis 2011; 95:1308-1310. [PMID: 30731688 DOI: 10.1094/pdis-01-11-0026] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Water-displacement and WinRHIZO root-scanning methods were compared for efficacy of root damage assessment. Results from both methods were similar and a highly significant relationship was found between the two methods in trial one (r2 = 0.9968, P < 0.0001) and trial two (r2 = 0.9988, P < 0.0001). Both protocols provide consistent root volume measurements; however, water displacement is preferred as an economical method if a quick evaluation of a large amount of roots is essential. For a more detailed root morphological and architectural analysis, WinRHIZO root scanning provides additional information about several root parameters that cannot be measured by simple water displacement.
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Affiliation(s)
- W Pang
- Entomology and Nematology Department
| | - W T Crow
- Entomology and Nematology Department
| | - J E Luc
- Entomology and Nematology Department
| | | | | | | | - J K Kruse
- Environmental Horticulture Department, University of Florida, Gainesville 32611
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Pang W, Luc JE, Crow WT, Kenworthy KE, Giblin-Davis RM, McSorley R, Kruse JK. Field Responses of Bermudagrass and Seashore paspalum Cultivars to Sting and Spiral Nematodes. J Nematol 2011; 43:201-8. [PMID: 23430148 PMCID: PMC3547344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Indexed: 06/01/2023] Open
Abstract
Belonolaimus longicaudatus and Helicotylenchus spp. are damaging nematode species on bermudagrass (Cynodon spp.) and seashore paspalum (Paspalum vaginatum) in sandy soils of the southeastern United States. Eight bermudagrass and three seashore paspalum cultivars were tested for responses to both nematode species in field plots for two years in Florida. Soil samples were taken every three months and nematode population densities in soil were quantified. Turfgrass aboveground health was evaluated throughout the growing season. Results showed that all bermudagrass cultivars, except TifSport, were good hosts for B. longicaudatus, and all seashore paspalum cultivars were good hosts for H. pseudorobustus. Overall, bermudagrass was a better host for B. longicaudatus while seashore paspalum was a better host for H. pseudorobustus. TifSport bermudagrass and SeaDwarf seashore paspalum cultivars supported the lowest population densities of B. longicaudatus. Seashore paspalum had a higher percent green cover than bermudagrass in the nematode-infested field. Nematode intolerant cultivars were identified.
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Affiliation(s)
- Wenjing Pang
- Entomology and Nematology Department, University of Florida, Gainesville, FL 32611-0620
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Czechowicz A, Bhardwaj R, Pang W, Park C, Weissman I. Targeted Clearance of Human Hematopoietic Stem Cell Niches Via Inhibition of SCF Signaling Using Monoclonal Antibody SR-1. Biol Blood Marrow Transplant 2011. [DOI: 10.1016/j.bbmt.2010.12.106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Luc JE, Pang W, Crow WT, Giblin-Davis RM. Effects of formulation and host nematode density on the ability of in vitro-produced pasteuria endospores to control its host Belonolaimus longicaudatus. J Nematol 2010; 42:87-90. [PMID: 22736843 PMCID: PMC3380477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Indexed: 06/01/2023] Open
Abstract
The effect of nematode population density at the time of application and formulations of in vitro-produced Pasteuria spp. endospores on the final population density of Belonolaimus longicaudatus was studied in an 84-d-long pot bioassay. The experiment utilized a factorial design consisting of 30 or 300 B. longicaudatus /100 cm(3) of sandy soil and three formulations of in vitro-produced Pasteuria spp. endospores (nontreated, granular, or liquid). No differences were observed in percent endospore attachment between nematode inoculum levels during either trial. Granular and liquid formulations of in vitro-produced endospores suppressed nematode population densities by 22% and 59% in the first trial and 20% and 63% in the second, respectively compared with the nontreated control. The liquid formulation increased percent endospore attachment by 147% and 158%, respectively, compared with the granular formulation. The greatest root retention by the host plant was observed at the lower B. longicaudatus inoculation level following application of the liquid formulation. While both the granular and liquid formulations reduced B. longicaudatus population densities in the soil, the liquid spore suspension was most effective.
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Affiliation(s)
- John E Luc
- Entomology and Nematology Department, University of Florida, Gainesville FL 32611, USA
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Sun XM, Pang W, Jia T, Yan WC, He G, Hao LL, Bentué M, Suo X. Prevalence of Eimeria Species in Broilers with Subclinical Signs from Fifty Farms. Avian Dis 2009; 53:301-5. [DOI: 10.1637/8379-061708-resnote.1] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Liu S, Li Q, Pang W, Bo L, Qin S, Liu X, Teng Q, Qian L, Wang J. A new complex variant t(4;15;17) in acute promyelocytic leukemia: fluorescence in situ hybridization confirmation and literature review. Cancer Genet Cytogenet 2001; 130:33-7. [PMID: 11672771 DOI: 10.1016/s0165-4608(01)00464-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
We report a 37-year-old male with acute promyelocytic leukemia (APL) harboring a complex translocation (4;15;17). Karyotypic analysis with R-banding of bone marrow cells revealed 46,XY,t(4;15;17)(q21;q22;q21). Fluorescence in situ hybridization analysis using painting probes for chromosomes 4, 15 and 17 and reverse transcriptase polymerase chain reaction analysis revealed three derivative chromosomes: der(4)t(4;15)(q21;q22), der(15)t(4;15;17)(q21;q22;q21), and del(17)(q21q22). This is the third report of such a translocation and the first confirmed by molecular methods. Considering reported similar cases, it is possible that 4q21 is a nonrandom breakpoint in APL with complex translocations and the gene involved in 4q21 should be investigated.
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MESH Headings
- Chromosomes, Human, Pair 15
- Chromosomes, Human, Pair 17
- Chromosomes, Human, Pair 4
- Humans
- In Situ Hybridization, Fluorescence
- Karyotyping
- Leukemia, Promyelocytic, Acute/genetics
- Reverse Transcriptase Polymerase Chain Reaction
- Translocation, Genetic
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Affiliation(s)
- S Liu
- Laboratory of Genetics, Hematological Institute, Chinese Academy of Medical Sciences, 288 Nanjing Road, 300020, Tianjin, China
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Zhang F, Hao Y, Pang W. [The implications of the biological indices examination of bone marrow cells in myelodysplastic syndromes]. Zhonghua Xue Ye Xue Za Zhi 2001; 22:528-32. [PMID: 11769678] [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: 02/23/2023]
Abstract
OBJECTIVE To explore the biological characteristics of the hematopoietic cells in myelodysplastic syndromes(MDS) and the relationship between the biological indices and the disease progressing. METHODS R banding technique for karyotype analysis, in vitro semi-solid culture for CFU-GM growth patterns, flow cytometry after monoclonal antibody labeling for proliferation cell nuclear antigen (PCNA) expression, flow cytometry after in vitro bromodeoxyuridine (BrdU) incorporation for cell cycle kinetics analysis, and X-linked HUMARA gene polymorphism assay for hematopoiesis clonality analysis were carried out in 37 MDS patients. RESULTS 1. Cytogenetic abnormalities were detected in 31% of the MDS patients and AML transformation occurred in 2 of 9 with normal and 3 of 5 with abnormal chromosomal karyotypes. 2. The mean CFU-GM colony yield was decreased and cluster yield increased in the MDS patients. Disease progression in 6 of 9 with more CFU-GM cluster yields, while only 1 of 9 with either normal or no CFU-GM yields transformed into AML. 3. Percentages of PCNA-positive BMMNCs were significantly higher in MDS patients than in normal control (44.22% vs 26.82%, P < 0.01). RAEB/RAEB-t subtypes had significantly higher PCNA-positive cells (P < 0.01). 4. The mean BrdU labeling index of MDS marrow cells was lower (5.07%), the mean DNA synthesis time (Ts) and potential doubling time(Tpot) of MDS patients were longer than that of normal control (p < 0.01), and the increased Ts and T pot were related to the disease progression. 5. Monoclonal pattern of BMMNCs was detected in 5 of 7 heterozygous female RA patients and the other 2 were polyclonal hematopoiesis. All 3 RAEB and 1 MDS/AML were monoclonal hematopoiesis. CONCLUSION With disease progressing and bone marrow blasts increasing, the biological nature of the hamatopoetic cells in MDS exhibited a tendency to transformation as follows: hematopoiesis converting into clonal, in vitro CFU-GM growth pattern approaching leukemic, PCNA expression increasing, and cell cycle prolonging.
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Affiliation(s)
- F Zhang
- Institute of Hematology, CAMS, PUMC, Tianjin 300020, China
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Soja PJ, Pang W, Taepavarapruk N, Cairns BE, McErlane SA. On the reduction of spontaneous and glutamate-driven spinocerebellar and spinoreticular tract neuronal activity during active sleep. Neuroscience 2001; 104:199-206. [PMID: 11311542 DOI: 10.1016/s0306-4522(01)00060-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The present study was performed to provide evidence that dynamic neural processes underlie the reduction in dorsal spinocerebellar tract and spinoreticular tract neuron activity that occurs during active sleep. To ascertain the effect of local inhibition on the spontaneous and glutamate-evoked spike discharge of sensory tract neurons, preliminary control tests were performed during the state of quiet wakefulness, where GABA or glycine was co-administered in a sustained fashion during pulsatile release of glutamate to dorsal spinocerebellar tract (n=3) or spinoreticular tract (n=2) neurons. Co-administration of GABA or glycine also resulted in a significant marked suppression of spontaneous spike activity and glutamate-evoked responses of these cells. Extracellular recording experiments combined with juxtacellular application of glutamate were then performed on 20 antidromically identified dorsal spinocerebellar tract and spinoreticular tract neurons in the chronic intact cat as a function of sleep and wakefulness. The glutamate-evoked activity of a group of 10 sensory tract neurons (seven dorsal spinocerebellar tract, three spinoreticular tract), which exhibited a significant decrease in their spontaneous spike activity during active sleep, was examined. Glutamate-evoked activity in these cells was significantly attenuated during active sleep compared with wakefulness. In contrast, the glutamate-evoked activity of a second group of eight sensory tract neurons (four dorsal spinocerebellar tract, four spinoreticular tract), which exhibited a significant increase in their spontaneous spike activity during active sleep, was not significantly altered in a state-dependent manner. These data indicate that, during natural active sleep, a dynamic neural process is engaged onto certain dorsal spinocerebellar tract and spinoreticular tract neurons, which in turn dampens sensory throughput to higher brain centers.
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Affiliation(s)
- P J Soja
- Division of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, The University of British Columbia, 2146 East Mall, B.C., V6T 1Z3, Vancouver, Canada.
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Abstract
Sleep mentation studies infer that pain sensation in humans may be reduced during active REM sleep. However, to provide a mechanistic explanation for this phenomenon, few, if any neurophysiological studies have been performed at the lumbar level from neurons comprising classical pain pathways during sleep and wakefulness. The spinoreticular tract is one such classical pathway that has been implicated in the rostral transmission of nociceptive information. The present study was performed to determine if the activity of spinoreticular tract (SRT) neurons is dependent upon behavioral state. Accordingly, extracellular recording techniques were used to monitor the activity of identified SRT neurons in unanesthetized chronic cats during sleep and wakefulness. The ongoing spike activity of SRT neurons was found to be relatively uniform when the states of quiet wakefulness and quiet sleep were compared. However, during active sleep, the majority of the SRT neurons sampled underwent a sustained reduction in spike activity. Marked facilitation of SRT cell activity occurred in a few instances. These data provide the first unitary evidence supporting earlier evoked potential, psychophysical and clinical studies that ascending sensory information in a classical pain pathway is regulated in a state-dependent fashion.
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Affiliation(s)
- P J Soja
- Division of Pharmacology & Toxicology, Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, Canada.
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Abstract
UNLABELLED By using a patient-controlled analgesia (PCA) delivery system, we compared the clinical advantages and disadvantages of PCA with tramadol and PCA with a mixture of tramadol plus lysine acetyl salicylate (a soluble aspirin). Fifty adult patients who had undergone major orthopedic surgeries were enrolled into a prospective, randomized, and double-blinded study. The general anesthesia was performed in a standard manner. At the beginning of wound closure, an equal volume dose of either tramadol 2.5 mg/kg (Group 1) or tramadol 1.25 mg/kg + lysine acetyl salicylate 12.5 mg/kg mixture (Group 2) was administered slowly IV. These solutions were continued postoperatively for IV PCA. Pain control, patient satisfaction, vital signs, and adverse effects were assessed for 48 h. Visual Analog Scale </=3 could be achieved with either group. Total tramadol consumption was significantly less in Group 2 than in Group 1 (614 +/- 259 mg vs 923 +/- 354 mg) (P: < 0.05). Patients in Group 2 were more alert (P: < 0.05). Blood loss from the surgical drain was similar, 865 +/- 275 mL (Group 1) vs 702 +/- 345 mL (Group 2). We conclude that aspirin can be used as an effective and safe adjuvant to tramadol for PCA after orthopedic surgery. IMPLICATIONS Injectable aspirin can be used as an effective and safe adjuvant to tramadol for patient-controlled analgesia (PCA) in orthopedic patients. The tramadol requirement is therefore reduced. This combination supports the concept that drugs other than opioids can be used for PCA.
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Affiliation(s)
- W Pang
- Departments of Anesthesia and Surgery, Show-Chwan Memorial Hospital, Changhua, Taiwan, Republic of China.
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Pang W. Role of muscle-derived cells in hematopoietic reconstitution of irradiated mice. Blood 2000; 95:1106-8. [PMID: 10691334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
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Abstract
UNLABELLED Using a patient-controlled analgesia (PCA) delivery system, we evaluated the clinical advantages and disadvantages of morphine PCA compared with morphine plus lysine acetyl salicylate (LAS), a soluble aspirin. After major orthopedic surgery, 50 adult patients were enrolled in a prospective, randomized, and double-blinded study. When a patient in the recovery room complained of pain, an initial dose of morphine or the morphine/LAS mixture was titrated to achieve analgesia of visual analog score < or = 3 in 30 min. An equivalent volume PCA dose of either morphine 1 mg/mL or morphine 0.5 mg + LAS 90 mg/mL was used with a lockout interval of 10 min. Pain score, patient satisfaction, vital signs, and adverse effects were observed for 48 h. Adequate analgesia (visual analog scale score < or = 3) was achieved with either drug. Morphine consumption in the morphine/LAS group was significantly less than in morphine group (13.9 vs 18.4 mg in 24 h and 24.3 vs 32.4 mg in 48 h). Significantly more sedation was evident with the morphine group (P < 0.05). We conclude that injectable LAS can be used as an effective and safe adjuvant to morphine for PCA. This combination reduces dose requirements of morphine and hence some of its adverse effects. IMPLICATIONS Injectable aspirin could be used as an effective and safe adjuvant to morphine for patient-controlled analgesia. This combination reduces the dose requirement of morphine and therefore some of the morphine-related untoward effects.
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Affiliation(s)
- W Pang
- Department of Anesthesia, Show-Chwan Memorial Hospital, Changhua, Taiwan, Republic of China
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Pang W. [An experimental study on thrombolysis in canine coronary artery by snake venom antithrombase II]. Zhonghua Xin Xue Guan Bing Za Zhi 1991; 19:325-7. [PMID: 1817021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Abstract
A Chinese family is described in which 6 members possess both the beta-chain hemoglobin variant Hb New York and alpha-thalassemia trait. The frequency of this combination may be greater than hitherto realized because Hb New York may easily be missed on routine hemoglobin electrophoresis.
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