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Köckerling F, Jacob D, Adolf D, Zherdyev V, Riediger H, Scheuerlein H. Laparoscopic total (Nissen) versus posterior (Toupet) fundoplication for gastroesophageal reflux disease: a propensity score-matched comparison of the perioperative and 1-year follow-up outcome. Hernia 2024:10.1007/s10029-024-02988-z. [PMID: 38493409 DOI: 10.1007/s10029-024-02988-z] [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: 11/06/2023] [Accepted: 02/08/2024] [Indexed: 03/18/2024]
Abstract
INTRODUCTION The debate continues as to whether laparoscopic total Nissen (LNF) versus partial posterior Toupet fundoplication (LTF) leads to better outcomes in the surgical treatment of axial hiatal hernia with gastroesophageal reflux disease. In the most recent meta-analysis including 13 RCTs with 1564 patients, no significant difference was found between the two procedures in terms of perioperative complications and recurrent reflux rates. Further comparative analyses are urgently needed. METHODS This retrospective analysis of prospectively recorded data from the Herniamed Registry compared the perioperative and 1-year follow-up outcomes after total Nissen versus partial Toupet fundoplication. Propensity score matching was chosen as the statistical method. Matching was performed for n = 2290 pairs. RESULTS No systematic discrepancy was found between the Nissen and Toupet fundoplication for any of the outcome parameters (intraoperative complications LNF 2.10% vs LTF 1.48%, general complications 2.27% vs 2.88%, postoperative complications 1.44% vs 1.18%, complication-related reoperation 1.00% vs 0.91%, recurrence on 1-year follow-up 6.55% vs 5.33%, pain on exertion on 1-year follow-up 12.49% vs 9.52%, pain at rest on 1-year follow-up 10.44 vs 9.52% and pain requiring treatment on 1-year follow-up 9.61% vs 8.17%). Also the postoperative dysphagia rate showed with 5.34% after LNF and with 4.64% after LTF no significant difference. CONCLUSION The findings presented here did not show any significant difference up to 1 year after Nissen or Toupet fundoplication. This is in concordance with the findings of the meta-analyses. However, the perioperative and 1-year follow-up outcomes demonstrate that both operation techniques should be carried out by experienced surgeons.
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Affiliation(s)
- F Köckerling
- Hernia Center, Vivantes Humboldt Hospital, Academic Teaching Hospital of Charité University Medicine, Am Nordgraben 2, 13509, Berlin, Germany.
| | - D Jacob
- COPV-Berlin, Kaiser-Wilhelm-Strasse 24-26, 12247, Berlin, Germany
| | - D Adolf
- StatConsult GmbH, Am Fuchsberg 11, 39112, Magdeburg, Germany
| | - V Zherdyev
- Pleissental-Hospital, Ronnenburger Str. 106, 08412, Werdau, Germany
| | - H Riediger
- Hernia Center, Vivantes Humboldt Hospital, Academic Teaching Hospital of Charité University Medicine, Am Nordgraben 2, 13509, Berlin, Germany
| | - H Scheuerlein
- St. Vincenz-Hospitals Paderborn, Academic Teaching Hospital University Göttingen, Am Busdorf 2, 33098, Paderborn, Germany
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Raghavendra KJ, John J, Jacob D, Rajendran T, Prusty AK, Ansari MA, Ravisankar N, Kumar S, Singh R, Shamim M, Punia P, Nirmal, Meena AL, Kashyap P, Shivaswamy GP, Dutta D. Unraveling determinants of integrated farming systems adoption for sustainable livelihood and dietary diversity. Front Nutr 2024; 11:1264658. [PMID: 38406187 PMCID: PMC10884160 DOI: 10.3389/fnut.2024.1264658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 01/08/2024] [Indexed: 02/27/2024] Open
Abstract
Introduction Over the years, smallholder farmers have faced more vulnerability to risk and uncertainty in India due to their dependence on cereal crops. One way to reduce this risk is through diversified agriculture, integrating different practices for efficient resource utilization, and adopting a farming systems approach. An integrated farming system (IFS) is one such technique that provides year-round income from different components of enterprises. However, the decision to adopt IFS may be determined by several characteristics of farmers, which needs to be delineated through impact analysis to harness the benefits of a systems approach. Methods This study analyzes the economic effects of integrated farming systems and assesses their determinants, as well as the dietary diversity patterns of farmers in two states of southern India, i.e., Kerala and Tamil Nadu. A multistage sampling technique was used to obtain cross-sectional data from 367 farmers randomly chosen from one district in Kerala and two districts in Tamil Nadu. The participants have Crop + Horticulture + Animal husbandry (45.45%) as their major system, whereas non-participants have Crop + Animal husbandry (44.35%) as their predominant system. Coarsened exact matching and logit regression methods were used to evaluate the economic impacts of IFS and its influencing factors. Results The findings of the study indicate that age, education, livestock holding, access to credit, and plantation area have a positive and significant effect on participation by farmers in the program. The matching results show that adoption of IFS resulted in a significant economic impact, generating an additional gross income of Rs. 36,165 ha-1 and a net income of Rs. 35,852 ha-1 and improving the dietary diversity of farm households by 8.6% as compared to non-adopters. Discussion This study suggests that IFS is a promising approach for improving farmers' livelihoods, economic gains, and nutritional security. Therefore, the integrated farming systems models need to be upscaled through the convergence of government schemes in other regions of India to support smallholder farmers' farming.
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Affiliation(s)
| | - Jacob John
- AICRP-IFS, Kerala Agriculture University, Thiruvananthapuram, India
| | - D. Jacob
- AICRP-IFS, Kerala Agriculture University, Thiruvananthapuram, India
| | - T. Rajendran
- AICRP-IFS, Tapioca and Castor Research Station, Tamil Nadu Agricultural University, Salem, India
| | - A. K. Prusty
- ICAR-Indian Institute of Farming Systems Research, Meerut, India
| | | | | | - Sunil Kumar
- ICAR-Indian Institute of Farming Systems Research, Meerut, India
| | - Raghuveer Singh
- ICAR-Indian Institute of Farming Systems Research, Meerut, India
| | - Mohammad Shamim
- ICAR-Indian Institute of Farming Systems Research, Meerut, India
| | - Peyush Punia
- ICAR-Indian Institute of Farming Systems Research, Meerut, India
| | - Nirmal
- ICAR-Indian Institute of Farming Systems Research, Meerut, India
| | - Amrit L. Meena
- ICAR-Indian Institute of Farming Systems Research, Meerut, India
| | - Poonam Kashyap
- ICAR-Indian Institute of Farming Systems Research, Meerut, India
| | | | - D. Dutta
- ICAR-Indian Institute of Farming Systems Research, Meerut, India
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Goggins E, Mironchik Y, Kakkad S, Jacob D, Wildes F, Bhujwalla ZM, Krishnamachary B. Reprogramming of VEGF-mediated extracellular matrix changes through autocrine signaling. Cancer Biol Ther 2023; 24:2184145. [PMID: 37389973 PMCID: PMC10012930 DOI: 10.1080/15384047.2023.2184145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 01/20/2023] [Accepted: 01/30/2023] [Indexed: 03/11/2023] Open
Abstract
Vascular endothelial growth factor (VEGF) plays key roles in angiogenesis, vasculogenesis, and wound healing. In cancers, including triple negative breast cancer (TNBC), VEGF has been associated with increased invasion and metastasis, processes that require cancer cells to traverse through the extracellular matrix (ECM) and establish angiogenesis at distant sites. To further understand the role of VEGF in modifying the ECM, we characterized VEGF-mediated changes in the ECM of tumors derived from TNBC MDA-MB-231 cells engineered to overexpress VEGF. We established that increased VEGF expression by these cells resulted in tumors with reduced collagen 1 (Col1) fibers, fibronectin, and hyaluronan. Molecular characterization of tumors identified an increase of MMP1, uPAR, and LOX, and a decrease of MMP2, and ADAMTS1. α-SMA, a marker of cancer associated fibroblasts (CAFs), increased, and FAP-α, a marker of a subset of CAFs associated with immune suppression, decreased with VEGF overexpression. Analysis of human data from The Cancer Genome Atlas Program confirmed mRNA differences for several molecules when comparing TNBC with high and low VEGF expression. We additionally characterized enzymatic changes induced by VEGF overexpression in three different cancer cell lines that clearly identified autocrine-mediated changes, specifically uPAR, in these enzymes. Unlike the increase of Col1 fibers and fibronectin mediated by VEGF during wound healing, in the TNBC model, VEGF significantly reduced key protein components of the ECM. These results further expand our understanding of the role of VEGF in cancer progression and identify potential ECM-related targets to disrupt this progression.
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Affiliation(s)
- Eibhlin Goggins
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yelena Mironchik
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Samata Kakkad
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Desmond Jacob
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Flonne Wildes
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Zaver M. Bhujwalla
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Radiation Oncology and Molecular Radiation Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Balaji Krishnamachary
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Krane N, Turco E, Bernhardt A, Jacob D, Gandus G, Passerone D, Luisier M, Juríček M, Fasel R, Fernández-Rossier J, Ruffieux P. Exchange Interactions and Intermolecular Hybridization in a Spin- 1/ 2 Nanographene Dimer. Nano Lett 2023; 23:9353-9359. [PMID: 37819646 DOI: 10.1021/acs.nanolett.3c02633] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Phenalenyl is a radical nanographene with a triangular shape hosting an unpaired electron with spin S = 1/2. The open-shell nature of the phenalenyl is expected to be retained in covalently bonded networks. As a first step, we report synthesis of the phenalenyl dimer by combining in-solution synthesis and on-surface activation and its characterization on Au(111) and on a NaCl decoupling layer by means of inelastic electron tunneling spectroscopy (IETS). IETS shows inelastic steps that are identified as singlet-triplet excitation arising from interphenalenyl exchange. Spin excitation energies with and without the NaCl decoupling layer are 48 and 41 meV, respectively, indicating significant renormalization due to exchange with Au(111) electrons. Furthermore, third-neighbor hopping-induced interphenalenyl hybridization is fundamental to explaining the position-dependent bias asymmetry of the inelastic steps and activation of kinetic interphenalenyl exchange. Our results pave the way for bottom-up synthesis of S = 1/2 spin-lattices with large exchange interactions.
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Affiliation(s)
- N Krane
- nanotech@surfaces Laboratory, Empa - Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland
| | - E Turco
- nanotech@surfaces Laboratory, Empa - Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland
| | - A Bernhardt
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - D Jacob
- Departamento de Polímeros y Materiales Avanzados: Física, Química y Tecnología, Universidad del País Vasco UPV/EHU, Av. Tolosa 72, E-20018 San Sebastián, Spain
- Basque Foundation for Science, IKERBASQUE, Plaza Euskadi 5, E-48009 Bilbao, Spain
| | - G Gandus
- Integrated Systems Laboratory, ETH Zürich, Gloriastrasse 35, 8092 Zürich, Switzerland
| | - D Passerone
- nanotech@surfaces Laboratory, Empa - Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland
| | - M Luisier
- Integrated Systems Laboratory, ETH Zürich, Gloriastrasse 35, 8092 Zürich, Switzerland
| | - M Juríček
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - R Fasel
- nanotech@surfaces Laboratory, Empa - Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - J Fernández-Rossier
- International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga s/n, 4715-330 Braga, Portugal
| | - P Ruffieux
- nanotech@surfaces Laboratory, Empa - Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland
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Parkins KM, Krishnamachary B, Jacob D, Kakkad SM, Solaiyappan M, Mishra A, Mironchik Y, Penet MF, McMahon MT, Knopf P, Pichler BJ, Nimmagadda S, Bhujwalla ZM. PET/MRI and Bioluminescent Imaging Identify Hypoxia as a Cause of Programmed Cell Death Ligand 1 Image Heterogeneity. Radiol Imaging Cancer 2023; 5:e220138. [PMID: 37389448 PMCID: PMC10413302 DOI: 10.1148/rycan.220138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 02/17/2023] [Accepted: 04/24/2023] [Indexed: 07/01/2023]
Abstract
Purpose To examine the association between hypoxia and programmed cell death ligand 1 (PD-L1) expression using bioluminescence imaging (BLI) and PET/MRI in a syngeneic mouse model of triple-negative breast cancer (TNBC). Materials and Methods PET/MRI and optical imaging were used to determine the role of hypoxia in altering PD-L1 expression using a syngeneic TNBC model engineered to express luciferase under hypoxia. Results Imaging showed a close spatial association between areas of hypoxia and increased PD-L1 expression in the syngeneic murine (4T1) tumor model. Mouse and human TNBC cells exposed to hypoxia exhibited a significant increase in PD-L1 expression, consistent with the in vivo imaging data. The role of hypoxia in increasing PD-L1 expression was further confirmed by using The Cancer Genome Atlas analyses of different human TNBCs. Conclusion These results have identified the potential role of hypoxia in contributing to PD-L1 heterogeneity in tumors by increasing cancer cell PD-L1 expression. Keywords: Hypoxia, PD-L1, Triple-Negative Breast Cancer, PET/MRI, Bioluminescence Imaging Supplemental material is available for this article. © RSNA, 2023.
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Affiliation(s)
| | | | - Desmond Jacob
- From the Russell H. Morgan Department of Radiology and Radiological
Science (K.M.P., B.K., D.J., S.M.K., M.S., A.M., Y.M., M.F.P., M.T.M., S.N.,
Z.M.B.), Sidney Kimmel Comprehensive Cancer Center (M.F.P., S.N., Z.M.B.), and
Department of Radiation Oncology and Molecular Radiation Sciences (Z.M.B.), The
Johns Hopkins University School of Medicine, 720 Rutland Ave, Rm 208C Traylor
Building, Baltimore, MD 21205; The F.M. Kirby Research Center for Functional
Brain Imaging, Kennedy Krieger Institute, Baltimore, Md (M.T.M.); and Werner
Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy,
Eberhard Karls University Tuebingen, Tuebingen, Germany (P.K., B.J.P.)
| | - Samata M. Kakkad
- From the Russell H. Morgan Department of Radiology and Radiological
Science (K.M.P., B.K., D.J., S.M.K., M.S., A.M., Y.M., M.F.P., M.T.M., S.N.,
Z.M.B.), Sidney Kimmel Comprehensive Cancer Center (M.F.P., S.N., Z.M.B.), and
Department of Radiation Oncology and Molecular Radiation Sciences (Z.M.B.), The
Johns Hopkins University School of Medicine, 720 Rutland Ave, Rm 208C Traylor
Building, Baltimore, MD 21205; The F.M. Kirby Research Center for Functional
Brain Imaging, Kennedy Krieger Institute, Baltimore, Md (M.T.M.); and Werner
Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy,
Eberhard Karls University Tuebingen, Tuebingen, Germany (P.K., B.J.P.)
| | - Meiyappan Solaiyappan
- From the Russell H. Morgan Department of Radiology and Radiological
Science (K.M.P., B.K., D.J., S.M.K., M.S., A.M., Y.M., M.F.P., M.T.M., S.N.,
Z.M.B.), Sidney Kimmel Comprehensive Cancer Center (M.F.P., S.N., Z.M.B.), and
Department of Radiation Oncology and Molecular Radiation Sciences (Z.M.B.), The
Johns Hopkins University School of Medicine, 720 Rutland Ave, Rm 208C Traylor
Building, Baltimore, MD 21205; The F.M. Kirby Research Center for Functional
Brain Imaging, Kennedy Krieger Institute, Baltimore, Md (M.T.M.); and Werner
Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy,
Eberhard Karls University Tuebingen, Tuebingen, Germany (P.K., B.J.P.)
| | - Akhilesh Mishra
- From the Russell H. Morgan Department of Radiology and Radiological
Science (K.M.P., B.K., D.J., S.M.K., M.S., A.M., Y.M., M.F.P., M.T.M., S.N.,
Z.M.B.), Sidney Kimmel Comprehensive Cancer Center (M.F.P., S.N., Z.M.B.), and
Department of Radiation Oncology and Molecular Radiation Sciences (Z.M.B.), The
Johns Hopkins University School of Medicine, 720 Rutland Ave, Rm 208C Traylor
Building, Baltimore, MD 21205; The F.M. Kirby Research Center for Functional
Brain Imaging, Kennedy Krieger Institute, Baltimore, Md (M.T.M.); and Werner
Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy,
Eberhard Karls University Tuebingen, Tuebingen, Germany (P.K., B.J.P.)
| | - Yelena Mironchik
- From the Russell H. Morgan Department of Radiology and Radiological
Science (K.M.P., B.K., D.J., S.M.K., M.S., A.M., Y.M., M.F.P., M.T.M., S.N.,
Z.M.B.), Sidney Kimmel Comprehensive Cancer Center (M.F.P., S.N., Z.M.B.), and
Department of Radiation Oncology and Molecular Radiation Sciences (Z.M.B.), The
Johns Hopkins University School of Medicine, 720 Rutland Ave, Rm 208C Traylor
Building, Baltimore, MD 21205; The F.M. Kirby Research Center for Functional
Brain Imaging, Kennedy Krieger Institute, Baltimore, Md (M.T.M.); and Werner
Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy,
Eberhard Karls University Tuebingen, Tuebingen, Germany (P.K., B.J.P.)
| | - Marie-France Penet
- From the Russell H. Morgan Department of Radiology and Radiological
Science (K.M.P., B.K., D.J., S.M.K., M.S., A.M., Y.M., M.F.P., M.T.M., S.N.,
Z.M.B.), Sidney Kimmel Comprehensive Cancer Center (M.F.P., S.N., Z.M.B.), and
Department of Radiation Oncology and Molecular Radiation Sciences (Z.M.B.), The
Johns Hopkins University School of Medicine, 720 Rutland Ave, Rm 208C Traylor
Building, Baltimore, MD 21205; The F.M. Kirby Research Center for Functional
Brain Imaging, Kennedy Krieger Institute, Baltimore, Md (M.T.M.); and Werner
Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy,
Eberhard Karls University Tuebingen, Tuebingen, Germany (P.K., B.J.P.)
| | - Michael T. McMahon
- From the Russell H. Morgan Department of Radiology and Radiological
Science (K.M.P., B.K., D.J., S.M.K., M.S., A.M., Y.M., M.F.P., M.T.M., S.N.,
Z.M.B.), Sidney Kimmel Comprehensive Cancer Center (M.F.P., S.N., Z.M.B.), and
Department of Radiation Oncology and Molecular Radiation Sciences (Z.M.B.), The
Johns Hopkins University School of Medicine, 720 Rutland Ave, Rm 208C Traylor
Building, Baltimore, MD 21205; The F.M. Kirby Research Center for Functional
Brain Imaging, Kennedy Krieger Institute, Baltimore, Md (M.T.M.); and Werner
Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy,
Eberhard Karls University Tuebingen, Tuebingen, Germany (P.K., B.J.P.)
| | - Philipp Knopf
- From the Russell H. Morgan Department of Radiology and Radiological
Science (K.M.P., B.K., D.J., S.M.K., M.S., A.M., Y.M., M.F.P., M.T.M., S.N.,
Z.M.B.), Sidney Kimmel Comprehensive Cancer Center (M.F.P., S.N., Z.M.B.), and
Department of Radiation Oncology and Molecular Radiation Sciences (Z.M.B.), The
Johns Hopkins University School of Medicine, 720 Rutland Ave, Rm 208C Traylor
Building, Baltimore, MD 21205; The F.M. Kirby Research Center for Functional
Brain Imaging, Kennedy Krieger Institute, Baltimore, Md (M.T.M.); and Werner
Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy,
Eberhard Karls University Tuebingen, Tuebingen, Germany (P.K., B.J.P.)
| | - Bernd J. Pichler
- From the Russell H. Morgan Department of Radiology and Radiological
Science (K.M.P., B.K., D.J., S.M.K., M.S., A.M., Y.M., M.F.P., M.T.M., S.N.,
Z.M.B.), Sidney Kimmel Comprehensive Cancer Center (M.F.P., S.N., Z.M.B.), and
Department of Radiation Oncology and Molecular Radiation Sciences (Z.M.B.), The
Johns Hopkins University School of Medicine, 720 Rutland Ave, Rm 208C Traylor
Building, Baltimore, MD 21205; The F.M. Kirby Research Center for Functional
Brain Imaging, Kennedy Krieger Institute, Baltimore, Md (M.T.M.); and Werner
Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy,
Eberhard Karls University Tuebingen, Tuebingen, Germany (P.K., B.J.P.)
| | - Sridhar Nimmagadda
- From the Russell H. Morgan Department of Radiology and Radiological
Science (K.M.P., B.K., D.J., S.M.K., M.S., A.M., Y.M., M.F.P., M.T.M., S.N.,
Z.M.B.), Sidney Kimmel Comprehensive Cancer Center (M.F.P., S.N., Z.M.B.), and
Department of Radiation Oncology and Molecular Radiation Sciences (Z.M.B.), The
Johns Hopkins University School of Medicine, 720 Rutland Ave, Rm 208C Traylor
Building, Baltimore, MD 21205; The F.M. Kirby Research Center for Functional
Brain Imaging, Kennedy Krieger Institute, Baltimore, Md (M.T.M.); and Werner
Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy,
Eberhard Karls University Tuebingen, Tuebingen, Germany (P.K., B.J.P.)
| | - Zaver M. Bhujwalla
- From the Russell H. Morgan Department of Radiology and Radiological
Science (K.M.P., B.K., D.J., S.M.K., M.S., A.M., Y.M., M.F.P., M.T.M., S.N.,
Z.M.B.), Sidney Kimmel Comprehensive Cancer Center (M.F.P., S.N., Z.M.B.), and
Department of Radiation Oncology and Molecular Radiation Sciences (Z.M.B.), The
Johns Hopkins University School of Medicine, 720 Rutland Ave, Rm 208C Traylor
Building, Baltimore, MD 21205; The F.M. Kirby Research Center for Functional
Brain Imaging, Kennedy Krieger Institute, Baltimore, Md (M.T.M.); and Werner
Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy,
Eberhard Karls University Tuebingen, Tuebingen, Germany (P.K., B.J.P.)
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Greenstein LS, Daya R, Jacob D, Bayat Z. A case of hyponatraemia secondary to vitamin D deficiency. Journal of Endocrinology, Metabolism and Diabetes of South Africa 2023. [DOI: 10.1080/16089677.2023.2178155] [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] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- LS Greenstein
- Division of Geriatric Medicine, Department of Internal Medicine, Helen Joseph Hospital, Johannesburg, South Africa
- Division of Geriatric Medicine, Department of Internal Medicine, School of Clinical Medicine, University of the Witwatersrand, Johannesburg, South Africa
| | - R Daya
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Helen Joseph Hospital, Johannesburg, South Africa
- Division of Endocrinology and Metabolism, Department of Internal Medicine, School of Clinical Medicine, University of the Witwatersrand, Johannesburg, South Africa
| | - D Jacob
- Department of Chemical Pathology, National Health Laboratory Services, Helen Joseph Hospital, Johannesburg, South Africa
- Department of Chemical Pathology, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Z Bayat
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Helen Joseph Hospital, Johannesburg, South Africa
- Division of Endocrinology and Metabolism, Department of Internal Medicine, School of Clinical Medicine, University of the Witwatersrand, Johannesburg, South Africa
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Aubonnet R, Shoykhet A, Jacob D, Di Lorenzo G, Petersen H, Gargiulo P. Postural control paradigm (BioVRSea): towards a neurophysiological signature. Physiol Meas 2022; 43. [PMID: 36265477 DOI: 10.1088/1361-6579/ac9c43] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 10/20/2022] [Indexed: 02/07/2023]
Abstract
Objective.To define a new neurophysiological signature from electroencephalography (EEG) during a complex postural control task using the BioVRSea paradigm, consisting of virtual reality (VR) and a moving platform, mimicking the behavior of a boat on the sea.Approach.EEG (64 electrodes) data from 190 healthy subjects were acquired. The experiment is composed of 6 segments (Baseline, PRE, 25%, 50%, 75%, POST). The baseline lasts 60 s while standing on the motionless platform with a mountain view in the VR goggles. PRE and POST last 40 s while standing on the motionless platform with a sea simulation. The 3 other tasks last 40 s each, with the platform moving to adapt to the waves, and the subject holding a bar to maintain its balance. The power spectral density (PSD) difference for each task minus baseline has been computed for every electrode, for five frequency bands (delta, theta, alpha, beta, and low-gamma). Statistical significance has been computed.Main results.All the bands were significant for the whole cohort, for each task regarding baseline. Delta band shows a prefrontal PSD increase, theta a fronto-parietal decrease, alpha a global scalp power decrease, beta an increase in the occipital and temporal scalps and a decrease in other areas, and low-gamma a significant but slight increase in the parietal, occipital and temporal scalp areas.Significance.This study develops a neurophysiological reference during a complex postural control task. In particular, we found a strong localized activity associated with certain frequency bands during certain phases of the experiment. This is the first step towards a neurophysiological signature that can be used to identify pathological conditions lacking quantitative diagnostics assessment.
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Affiliation(s)
- R Aubonnet
- Institute of Biomedical and Neural Engineering, Reykjavik University, Reykjavik, Iceland
| | - A Shoykhet
- Institute of Biomedical and Neural Engineering, Reykjavik University, Reykjavik, Iceland
| | - D Jacob
- Institute of Biomedical and Neural Engineering, Reykjavik University, Reykjavik, Iceland
| | - G Di Lorenzo
- Laboratory of Psychophysiology and Cognitive Neuroscience, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy.,IRCCS Fondazione Santa Lucia, Rome, Italy
| | - H Petersen
- Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland.,Akureyri Hospital, Akureyri, Iceland
| | - P Gargiulo
- Institute of Biomedical and Neural Engineering, Reykjavik University, Reykjavik, Iceland.,Department of Science, Landspitalin, National University Hospital of Iceland, Reykjavik, Iceland
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8
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Vaughan HJ, Zamboni CG, Hassan LF, Radant NP, Jacob D, Mease RC, Minn I, Tzeng SY, Gabrielson KL, Bhardwaj P, Guo X, Francisco D, Pomper MG, Green JJ. Polymeric nanoparticles for dual-targeted theranostic gene delivery to hepatocellular carcinoma. Sci Adv 2022; 8:eabo6406. [PMID: 35857843 PMCID: PMC9299552 DOI: 10.1126/sciadv.abo6406] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 06/03/2022] [Indexed: 05/29/2023]
Abstract
Hepatocellular carcinoma (HCC) develops predominantly in the inflammatory environment of a cirrhotic liver caused by hepatitis, toxin exposure, or chronic liver disease. A targeted therapeutic approach is required to enable cancer killing without causing toxicity and liver failure. Poly(beta-amino-ester) (PBAE) nanoparticles (NPs) were used to deliver a completely CpG-free plasmid harboring mutant herpes simplex virus type 1 sr39 thymidine kinase (sr39) DNA to human HCC cells. Transfection with sr39 enables cancer cell killing with the prodrug ganciclovir and accumulation of 9-(4-18F-fluoro-3-hydroxymethylbutyl)guanine (18F-FHBG) for in vivo imaging. Targeting was achieved using a CpG-free human alpha fetoprotein (AFP) promoter (CpGf-AFP-sr39). Expression was restricted to AFP-producing HCC cells, enabling selective transfection of orthotopic HCC xenografts. CpGf-AFP-sr39 NP treatment resulted in 62% reduced tumor size, and therapeutic gene expression was detectable by positron emission tomography (PET). This systemic nanomedicine achieved tumor-specific delivery, therapy, and imaging, representing a promising platform for targeted treatment of HCC.
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Affiliation(s)
- Hannah J. Vaughan
- Department of Biomedical Engineering and the Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Camila G. Zamboni
- Department of Biomedical Engineering and the Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Laboni F. Hassan
- Department of Biomedical Engineering and the Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Nicholas P. Radant
- Department of Biomedical Engineering and the Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Desmond Jacob
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA
| | - Ronnie C. Mease
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA
| | - Il Minn
- Department of Biomedical Engineering and the Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA
| | - Stephany Y. Tzeng
- Department of Biomedical Engineering and the Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Kathleen L. Gabrielson
- Department of Molecular and Comparative Pathobiology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Pranshu Bhardwaj
- Department of Biomedical Engineering and the Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Xin Guo
- Department of Molecular and Comparative Pathobiology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - David Francisco
- Department of Biomedical Engineering and the Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Martin G. Pomper
- Department of Biomedical Engineering and the Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA
- Department of Materials Science and Engineering and the Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21231, USA
| | - Jordan J. Green
- Department of Biomedical Engineering and the Institute for NanoBioTechnology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Materials Science and Engineering and the Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21231, USA
- Departments of Neurosurgery, Oncology, Ophthalmology, and Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
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9
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Paramesh V, Ravisankar N, Behera U, Arunachalam V, Kumar P, Solomon Rajkumar R, Dhar Misra S, Mohan Kumar R, Prusty AK, Jacob D, Panwar AS, Mayenkar T, Reddy VK, Rajkumar S. Integrated farming system approaches to achieve food and nutritional security for enhancing profitability, employment, and climate resilience in India. Food Energy Secur 2022. [DOI: 10.1002/fes3.321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
| | - Natesan Ravisankar
- ICAR‐ Indian Institute of Farming System Research Modipuram, Meerut India
| | - UmaKant Behera
- CAU‐ College of Agriculture Kyrdemkulai, Meghalaya India
| | | | - Parveen Kumar
- ICAR‐ Central Coastal Agricultural Research Institute Goa India
| | | | | | | | - A. K. Prusty
- ICAR‐ Indian Institute of Farming System Research Modipuram, Meerut India
| | - D. Jacob
- On Farm Research Centre Kerala Agricultural University Thiruvananthapuram India
| | - A. S. Panwar
- ICAR‐ Indian Institute of Farming System Research Modipuram, Meerut India
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10
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Abstract
Abstract
A 25 yrs old female patient came to our department for routine antenatal ultrasound. Sonography revealed presence of a 24 week live intrauterine pregnancy. During routine screening for congenital anomalies, multiple highly echogenic foci were seen on the visceral peritoneal surface of liver and the parietal peritoneum. However no evidence of dilated bowel/ fetal ascites was detected. No other anomaly was detected.
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Affiliation(s)
- A T Kharat
- Department of Radio diagnosis, Dr Padm D.Y.Patil Medical College. Pimpri - 18., India
| | - R Prathima
- Department of Radio diagnosis, Dr Padm D.Y.Patil Medical College. Pimpri - 18., India
| | - A Singh
- Department of Radio diagnosis, Dr Padm D.Y.Patil Medical College. Pimpri - 18., India
| | - D Jacob
- Department of Radio diagnosis, Dr Padm D.Y.Patil Medical College. Pimpri - 18., India
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11
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Foss C, Jacob D, Wildes F, Penet MF. Abstract 2809: PET-MRI imaging of reactive macrophages in an orthotopic model of ovarian cancer. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-2809] [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: 11/16/2022]
Abstract
Abstract
Ovarian cancer is a lethal gynecologic malignancy and the fifth leading cause of cancer-related deaths in women in the United States. Early detection is a critical unmet need, as patients have significantly improved prognosis when a tumor is discovered at an early stage, and disease staging for prognosis and treatment strategy is critical to ensure proper clinical management. Major limitations of radiological evaluation of ovarian cancer arise from the inability to consistently detect small lesions. The availability of multiplexed hybrid imaging systems, such as simultaneous PET-MRI scanners, presents unique opportunities to combine the strengths of anatomic, physiologic and molecular detection within a single exam for the purpose of early detection and staging of ovarian cancer. Tumor associated macrophages (TAMs) play a critical role in ovarian cancer and are among several promising targets in host-directed therapies in cancer. Here, we will combine the anatomic imaging capabilities of MRI with the highly sensitive molecular imaging capabilities of PET in an orthotopic syngeneic model of ovarian cancer, using [124I]iodo-DPA-713, a macrophage-specific imaging agent to define host signatures to detect and stage ovarian cancer. [124I]DPA-713 is a low molecular weight probe that is selectively trapped within reactive phagocytes in both peripheral and central nervous system tissues, including TAMs, and exhibits very low background retention. Using PET-MRI imaging, this allows for excelling visualization of ovaries and the peritoneal environment. Pieces of ID8-Defb29-VEGF tumor were orthotopically implanted onto the ovary of C57BL6 mice. Subcutaneous ID8-Defb29-VEGF tumors were also imaged for comparison. Bioluminescent imaging (BLI) was used to follow tumor progression, as these cancer cells constitutively express luciferin. Experiments were performed in mice presenting with different disease stages, from early stage when tumors are less than 3 mm with no metastases, to late stage with metastases and ascites present. BLI data were used to stratify the mice into different groups. Specific uptake of the radiotracer was observed within and proximal to the primary tumor at early stages. At later stages, uptake was observed in the peritoneal ascitic fluid and within metastases in the lungs, in addition to clear halos surrounding the primary tumor. These studies are clinically translatable and will facilitate non-invasive detection of a nursery of tumor supporting reactive macrophages. They will also provide insights into ovarian cancer progression that will complement emerging host-directed therapeutics destined for the clinic. Supported by the Hopkins Cancer Center Imaging Fund.
Citation Format: Catherine Foss, Desmond Jacob, Flonné Wildes, Marie-France Penet. PET-MRI imaging of reactive macrophages in an orthotopic model of ovarian cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 2809.
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Affiliation(s)
- Catherine Foss
- Johns Hopkins University School of Medicine, Baltimore, MD
| | - Desmond Jacob
- Johns Hopkins University School of Medicine, Baltimore, MD
| | - Flonné Wildes
- Johns Hopkins University School of Medicine, Baltimore, MD
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12
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Ngen EJ, Chen Y, Azad BB, Boinapally S, Jacob D, Lisok A, Shen C, Hossain MS, Jin J, Bhujwalla ZM, Pomper MG, Banerjee SR. Prostate-specific membrane antigen (PSMA)-targeted photodynamic therapy enhances the delivery of PSMA-targeted magnetic nanoparticles to PSMA-expressing prostate tumors. Nanotheranostics 2021; 5:182-196. [PMID: 33564617 PMCID: PMC7868004 DOI: 10.7150/ntno.52361] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/31/2020] [Indexed: 02/03/2023] Open
Abstract
Enhanced vascular permeability in tumors plays an essential role in nanoparticle delivery. Prostate-specific membrane antigen (PSMA) is overexpressed on the epithelium of aggressive prostate cancers (PCs). Here, we evaluated the feasibility of increasing the delivery of PSMA-targeted magnetic nanoparticles (MNPs) to tumors by enhancing vascular permeability in PSMA(+) PC tumors with PSMA-targeted photodynamic therapy (PDT). Method: PSMA(+) PC3 PIP tumor-bearing mice were given a low-molecular-weight PSMA-targeted photosensitizer and treated with fluorescence image-guided PDT, 4 h after. The mice were then given a PSMA-targeted MNP immediately after PDT and monitored with fluorescence imaging and T2-weighted magnetic resonance imaging (T2-W MRI) 18 h, 42 h, and 66 h after MNP administration. Untreated PSMA(+) PC3 PIP tumor-bearing mice were used as negative controls. Results: An 8-fold increase in the delivery of the PSMA-targeted MNPs was detected using T2-W MRI in the pretreated tumors 42 h after PDT, compared to untreated tumors. Additionally, T2-W MRIs revealed enhanced peripheral intra-tumoral delivery of the PSMA-targeted MNPs. That finding is in keeping with two-photon microscopy, which revealed higher vascular densities at the tumor periphery. Conclusion: These results suggest that PSMA-targeted PDT enhances the delivery of PSMA-targeted MNPs to PSMA(+) tumors by enhancing the vascular permeability of the tumors.
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Affiliation(s)
- Ethel J Ngen
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Ying Chen
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Babak Behnam Azad
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Srikanth Boinapally
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Desmond Jacob
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Ala Lisok
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Chentian Shen
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Mir S Hossain
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Jiefu Jin
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Zaver M Bhujwalla
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Martin G Pomper
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Sangeeta R Banerjee
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA.,The F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Research Institute, Baltimore, Maryland 21205, USA
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13
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Krishnamachary B, Mironchik Y, Jacob D, Goggins E, Kakkad S, Ofori F, Dore-Savard L, Bharti SK, Wildes F, Penet MF, Black ME, Bhujwalla ZM. Hypoxia theranostics of a human prostate cancer xenograft and the resulting effects on the tumor microenvironment. Neoplasia 2020; 22:679-688. [PMID: 33142234 PMCID: PMC7586064 DOI: 10.1016/j.neo.2020.10.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/01/2020] [Accepted: 10/04/2020] [Indexed: 12/22/2022] Open
Abstract
Developed a hypoxia theranostic imaging strategy to eliminate hypoxic cells. Hypoxic cell elimination resulted in fewer cancer associated fibroblasts (CAFs) Collagen 1 fiber patterns were altered with hypoxic cell elimination. cDNA nanoparticles with HRE driven prodrug enzyme expression can target hypoxia.
Hypoxia is frequently observed in human prostate cancer, and is associated with chemoresistance, radioresistance, metastasis, and castrate-resistance. Our purpose in these studies was to perform hypoxia theranostics by combining in vivo hypoxia imaging and hypoxic cancer cell targeting in a human prostate cancer xenograft. This was achieved by engineering PC3 human prostate cancer cells to express luciferase as well as a prodrug enzyme, yeast cytosine deaminase, under control of hypoxic response elements (HREs). Cancer cells display an adaptive response to hypoxia through the activation of several genes mediated by the binding of hypoxia inducible factors (HIFs) to HRE in the promoter region of target gene that results in their increased transcription. HIFs promote key steps in tumorigenesis, including angiogenesis, metabolism, proliferation, metastasis, and differentiation. HRE-driven luciferase expression allowed us to detect hypoxia in vivo to time the administration of the nontoxic prodrug 5-fluorocytosine that was converted by yeast cytosine deaminase, expressed under HRE regulation, to the chemotherapy agent 5-fluorouracil to target hypoxic cells. Conversion of 5-fluorocytosine to 5-fluorouracil was detected in vivo by 19F magnetic resonance spectroscopy. Morphological and immunohistochemical staining and molecular analyses were performed to characterize tumor microenvironment changes in cancer-associated fibroblasts, cell viability, collagen 1 fiber patterns, and HIF-1α. These studies expand our understanding of the effects of eliminating hypoxic cancer cells on the tumor microenvironment and in reducing stromal cell populations such as cancer-associated fibroblasts.
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Affiliation(s)
- Balaji Krishnamachary
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD.
| | - Yelena Mironchik
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Desmond Jacob
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Eibhlin Goggins
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Samata Kakkad
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Francis Ofori
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Louis Dore-Savard
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Santosh Kumar Bharti
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Flonne Wildes
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Marie-France Penet
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD; Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Margaret E Black
- School of Molecular Biosciences, Washington State University, Pullman, WA
| | - Zaver M Bhujwalla
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD; Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD; Radiation Oncology and Molecular Radiation Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD.
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14
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Katz A, Karvonen O, Di Caro A, Vairo F, Ippolito G, Grunow R, Jacob D, Salminen M. SHARP Joint Action – Strengthening International Health Regulations and preparedness in the EU. Eur J Public Health 2020. [PMCID: PMC7543434 DOI: 10.1093/eurpub/ckaa166.606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Although the preparedness to health emergencies of biological, chemical, environmental and unknown origin across the Europe is at high level, gaps do exist across the EU Member States and European countries. The previous coronavirus epidemic, SARS in 2002, showed that countries responded largely individually to this emerging threat. EU wide, joint responses were not taken. SARS epidemic showed that strengthening of the common EU efforts was needed. Many actions were taken, and since 2013 the European Commission Decision 1082/2013/EU on serious cross-border threats to health has provided a framework to improve preparedness and to strengthen the response capacities in Europe to health threats. SHARP Joint Action is a 3-year collaborative action of 26 countries and 61 partners, co-funded by the EC and coordinated by the Finnish Institute for Health and Welfare, Finland, and co-coordinated by Robert Koch Institute, Germany and National Institute of Infectious Diseases Lazzaro Spallanzani, Italy. SHARP started it's actions in June 2019, and it aims to strengthen implementation of the International Health Regulations (IHR) and the Decision 1082/2013/EU. SHARP consists of ten work packages covering core public health capacities, including: IHR core capacity strengthening and assessment, preparedness and response planning, training, laboratory preparedness and responsiveness, chemical safety and threats, and case management, infection prevention and control preparedness. Through this cross-sectoral approach, SHARP supports the Member States and partner countries in strengthening their capacities. In response to the COVID-19 outbreak, SHARP has also supported the EC and the Member States, and especially work packages for laboratory preparedness and responsiveness (WP7) and for case management and infection prevention and control preparedness (WP10) were activated. The activities regarding laboratory preparedness and response have been coordinated with the ECDC.
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Affiliation(s)
- A Katz
- Department of Health Security, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - O Karvonen
- Department of Health Security, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - A Di Caro
- National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - F Vairo
- National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - G Ippolito
- National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - R Grunow
- Robert Koch Institute, Berlin, Germany
| | - D Jacob
- Robert Koch Institute, Berlin, Germany
| | - M Salminen
- Department of Health Security, Finnish Institute for Health and Welfare, Helsinki, Finland
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15
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Karatuna O, Dance DAB, Matuschek E, Åhman J, Turner P, Hopkins J, Amornchai P, Wuthiekanun V, Cusack TP, Baird R, Hennessy J, Norton R, Armstrong M, Zange S, Zoeller L, Wahab T, Jacob D, Grunow R, Kahlmeter G. Burkholderia pseudomallei multi-centre study to establish EUCAST MIC and zone diameter distributions and epidemiological cut-off values. Clin Microbiol Infect 2020; 27:S1198-743X(20)30384-0. [PMID: 32653660 DOI: 10.1016/j.cmi.2020.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/26/2020] [Accepted: 07/01/2020] [Indexed: 12/26/2022]
Abstract
OBJECTIVES Melioidosis, caused by Burkholderia pseudomallei, requires intensive antimicrobial treatment. However, standardized antimicrobial susceptibility testing (AST) methodology based on modern principles for determining breakpoints and ascertaining performance of methods are lacking for B. pseudomallei. This study aimed to establish MIC and zone diameter distributions on which to set epidemiological cut-off (ECOFF) values for B. pseudomallei using standard EUCAST methodology for non-fastidious organisms. METHODS Non-consecutive, non-duplicate clinical B. pseudomallei isolates (9-70 per centre) were tested at eight study centres against eight antimicrobials by broth microdilution (BMD) and the EUCAST disc diffusion method. Isolates without and with suspected resistance mechanisms were deliberately selected. The EUCAST Development Laboratory ensured the quality of study materials, and provided guidance on performance of the tests and interpretation of results. Aggregated results were analysed according to EUCAST recommendations to determine ECOFFs. RESULTS MIC and zone diameter distributions were generated using BMD and disc diffusion results obtained for 361 B. pseudomallei isolates. MIC and zone diameter ECOFFs (mg/L; mm) were determined for amoxicillin-clavulanic acid (8; 22), ceftazidime (8; 22), imipenem (2; 29), meropenem (2; 26), doxycycline (2; none), tetracycline (8; 23), chloramphenicol (8; 22) and trimethoprim-sulfamethoxazole (4; 28). CONCLUSIONS We have validated the use of standard BMD and disc diffusion methodology for AST of B. pseudomallei. The MIC and zone diameter distributions generated in this study allowed us to establish MIC and zone diameter ECOFFs for the antimicrobials studied. These ECOFFs served as background data for EUCAST to set clinical MIC and zone diameter breakpoints for B. pseudomallei.
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Affiliation(s)
- O Karatuna
- EUCAST Development Laboratory, Växjö, Sweden.
| | - D A B Dance
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Vientiane, Lao People's Democratic Republic; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - E Matuschek
- EUCAST Development Laboratory, Växjö, Sweden
| | - J Åhman
- EUCAST Development Laboratory, Växjö, Sweden
| | - P Turner
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Cambodia Oxford Medical Research Unit, Angkor Hospital for Children, Siem Reap, Cambodia
| | - J Hopkins
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK; Cambodia Oxford Medical Research Unit, Angkor Hospital for Children, Siem Reap, Cambodia
| | - P Amornchai
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - V Wuthiekanun
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - T-P Cusack
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Vientiane, Lao People's Democratic Republic; National Infection Service, Public Health England, London, UK
| | - R Baird
- Royal Darwin Hospital, Darwin, NT, Australia
| | - J Hennessy
- Royal Darwin Hospital, Darwin, NT, Australia
| | - R Norton
- Townsville Hospital, Townsville, QLD, Australia
| | - M Armstrong
- Townsville Hospital, Townsville, QLD, Australia
| | - S Zange
- Bundeswehr Institute of Microbiology, Munich, Germany
| | - L Zoeller
- Bundeswehr Institute of Microbiology, Munich, Germany
| | - T Wahab
- Public Health Agency of Sweden, Stockholm, Sweden
| | - D Jacob
- Robert Koch Institute, Berlin, Germany
| | - R Grunow
- Robert Koch Institute, Berlin, Germany
| | - G Kahlmeter
- EUCAST Development Laboratory, Växjö, Sweden
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16
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Köckerling F, Krüger C, Gagarkin I, Kuthe A, Adolf D, Stechemesser B, Niebuhr H, Jacob D, Riediger H. What is the outcome of re-recurrent vs recurrent inguinal hernia repairs? An analysis of 16,206 patients from the Herniamed Registry. Hernia 2020; 24:811-819. [PMID: 32086633 PMCID: PMC7395905 DOI: 10.1007/s10029-020-02138-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 02/06/2020] [Indexed: 11/25/2022]
Abstract
INTRODUCTION The proportion of recurrent repairs in the total collective of inguinal hernia repairs among men is 11.3-14.3% and among women 7.0-7.4%. The rate of re-recurrences is reported to be 2.9-9.2%. To date, no case series has been published on second and ≥ third recurrences and their treatment outcomes. Only case reports are available. MATERIALS AND METHODS In an analysis of data from the Herniamed Registry the perioperative and 1-year follow-up outcomes of 16,206 distinct patients who had undergone first recurrent (n = 14,172; 87.4%), second recurrent (n = 1,583; 9.8%) or ≥ third recurrent (n = 451; 2.8%) inguinal hernia repair between September 1, 2009 and July 1, 2017 were compared. RESULTS The intraoperative complication rate for all recurrent repairs was between 1-2%. In the postoperative complications a continuous increase was observed (first recurrence: 3.97% vs second recurrence: 5.75% vs ≥ third recurrence 8.65%; p < 0.001). That applied equally to the complication-related reoperation rates (first recurrence: 1.50% vs second recurrence: 2.21% vs ≥ third recurrence 2.66; p = 0.020). Likewise, the re-recurrence rate rose significantly (first recurrence: 1.95% vs second recurrence: 2.72% vs ≥ third recurrence 3.77; p = 0.005). Similarly, the rate of pain requiring treatment rose highly significantly with an increasing number of recurrences (first recurrence: 5.21% vs second recurrence: 6.70% vs ≥ third recurrence 10.86; p = < 0.001). CONCLUSION The repair of re-recurrences in inguinal hernia is associated with increasingly more unfavorable outcomes. For the first recurrence the guidelines should definitely be noted. For a second and ≥ third recurrence diagnostic laparoscopy may help to select the best possible surgical technique.
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Affiliation(s)
- F Köckerling
- Department of Surgery and Center for Minimally Invasive Surgery, Academic Teaching Hospital of Charité Medical School, Vivantes Hospital, Neue Bergstrasse 6, 13585, Berlin, Germany.
| | - C Krüger
- Immanuel Hospital Rüdersdorf, Seebad 82/83, 15562, Rüdersdorf, Germany
| | - I Gagarkin
- Spital Riggisberg, Inselgruppe,, Eyweg 2, 3132, Riggisberg, Switzerland
| | - A Kuthe
- DRK-Krankenhaus Clementinenhaus, Lützerodestr. 1, 30161, Hannover, Germany
| | - D Adolf
- StatConsult GmbH, Halberstädter Strasse 40 a, 39112, Magdeburg, Germany
| | - B Stechemesser
- Pan Hospital, Hernia Center, Zeppelinstraße 1, 50667, Köln, Germany
| | - H Niebuhr
- Hansechirurgie, Niebuhr, Marleschki & Partner, Alte Holstenstr. 16, 21031, Hamburg, Germany
| | - D Jacob
- COPV-Hernia Center, Kaiser-Wilhelm-Str. 24-26, 12247, Berlin, Germany
| | - H Riediger
- Vivantes Humboldt Hospital, Am Nordgraben 2, 13509, Berlin, Germany
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Kakkad S, Krishnamachary B, Jacob D, Pacheco-Torres J, Goggins E, Bharti SK, Penet MF, Bhujwalla ZM. Molecular and functional imaging insights into the role of hypoxia in cancer aggression. Cancer Metastasis Rev 2020; 38:51-64. [PMID: 30840168 DOI: 10.1007/s10555-019-09788-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hypoxia in cancers has evoked significant interest since 1955 when Thomlinson and Gray postulated the presence of hypoxia in human lung cancers, based on the observation of necrosis occurring at the diffusion limit of oxygen from the nearest blood vessel, and identified the implication of these observations for radiation therapy. Coupled with discoveries in 1953 by Gray and others that anoxic cells were resistant to radiation damage, these observations have led to an entire field of research focused on exploiting oxygenation and hypoxia to improve the outcome of radiation therapy. Almost 65 years later, tumor heterogeneity of nearly every parameter measured including tumor oxygenation, and the dynamic landscape of cancers and their microenvironments are clearly evident, providing a strong rationale for cancer personalized medicine. Since hypoxia is a major cause of extracellular acidosis in tumors, here, we have focused on the applications of imaging to understand the effects of hypoxia in tumors and to target hypoxia in theranostic strategies. Molecular and functional imaging have critically important roles to play in personalized medicine through the detection of hypoxia, both spatially and temporally, and by providing new understanding of the role of hypoxia in cancer aggressiveness. With the discovery of the hypoxia-inducible factor (HIF), the intervening years have also seen significant progress in understanding the transcriptional regulation of hypoxia-induced genes. These advances have provided the ability to silence HIF and understand the associated molecular and functional consequences to expand our understanding of hypoxia and its role in cancer aggressiveness. Most recently, the development of hypoxia-based theranostic strategies that combine detection and therapy are further establishing imaging-based treatment strategies for precision medicine of cancer.
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Affiliation(s)
- Samata Kakkad
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Avenue, Rm 208C Traylor Building, Baltimore, MD, 21205, USA
| | - Balaji Krishnamachary
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Avenue, Rm 208C Traylor Building, Baltimore, MD, 21205, USA
| | - Desmond Jacob
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Avenue, Rm 208C Traylor Building, Baltimore, MD, 21205, USA
| | - Jesus Pacheco-Torres
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Avenue, Rm 208C Traylor Building, Baltimore, MD, 21205, USA
| | - Eibhlin Goggins
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Avenue, Rm 208C Traylor Building, Baltimore, MD, 21205, USA
| | - Santosh Kumar Bharti
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Avenue, Rm 208C Traylor Building, Baltimore, MD, 21205, USA
| | - Marie-France Penet
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Avenue, Rm 208C Traylor Building, Baltimore, MD, 21205, USA
- Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Zaver M Bhujwalla
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Avenue, Rm 208C Traylor Building, Baltimore, MD, 21205, USA.
- Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Department of Radiation Oncology and Molecular Radiation Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Hoegh-Guldberg O, Jacob D, Taylor M, Guillén Bolaños T, Bindi M, Brown S, Camilloni IA, Diedhiou A, Djalante R, Ebi K, Engelbrecht F, Guiot J, Hijioka Y, Mehrotra S, Hope CW, Payne AJ, Pörtner HO, Seneviratne SI, Thomas A, Warren R, Zhou G. The human imperative of stabilizing global climate change at 1.5°C. Science 2019. [PMID: 31604209 DOI: 10.1016/b978-1-78548-051-5.50007-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Increased concentrations of atmospheric greenhouse gases have led to a global mean surface temperature 1.0°C higher than during the pre-industrial period. We expand on the recent IPCC Special Report on global warming of 1.5°C and review the additional risks associated with higher levels of warming, each having major implications for multiple geographies, climates, and ecosystems. Limiting warming to 1.5°C rather than 2.0°C would be required to maintain substantial proportions of ecosystems and would have clear benefits for human health and economies. These conclusions are relevant for people everywhere, particularly in low- and middle-income countries, where the escalation of climate-related risks may prevent the achievement of the United Nations Sustainable Development Goals.
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Affiliation(s)
- O Hoegh-Guldberg
- Global Change Institute, University of Queensland, St. Lucia, QLD 4072, Australia.
- School of Biological Sciences, University of Queensland, St. Lucia, QLD 4072, Australia
| | - D Jacob
- Climate Service Center Germany (GERICS), Helmholtz-Zentrum Geesthacht, Hamburg, Germany
| | - M Taylor
- Department of Physics, University of the West Indies, Kingston, Jamaica
| | - T Guillén Bolaños
- Climate Service Center Germany (GERICS), Helmholtz-Zentrum Geesthacht, Hamburg, Germany
| | - M Bindi
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, 50144 Firenze, Italy
| | - S Brown
- Faculty of Engineering and Physical Sciences, University of Southampton, Boldrewood Innovation Campus, Southampton SO16 7QF, UK
- Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Fern Barrow, Poole, Dorset BH12 5BB, UK
| | - I A Camilloni
- Centro de Investigaciones del Mar y la Atmósfera (UBA-CONICET), UMI-IFAECI/CNRS, and Departamento de Ciencias de la Atmósfera y los Océanos (FCEN), University of Buenos Aires, Buenos Aires, Argentina
| | - A Diedhiou
- Université Grenoble Alpes, French National Research Institute for Sustainable Development (IRD), CNRS, Grenoble INP, IGE, F-38000 Grenoble, France
| | - R Djalante
- United Nations University-Institute for the Advanced Study of Sustainability (UNU-IAS), Tokyo, Japan
- Halu Oleo University, Kendari, South East Sulawesi, Indonesia
| | - K Ebi
- Center for Health and the Global Environment, University of Washington, Seattle, WA, USA
| | - F Engelbrecht
- Global Change Institute, University of the Witwatersrand, Johannesburg 2193, South Africa
| | - J Guiot
- Aix Marseille University, CNRS, IRD, INRA, Collège de France, CEREGE, Aix-en-Provence, France
| | - Y Hijioka
- Center for Climate Change Adaptation, National Institute for Environmental Studies, Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | | | - C W Hope
- Cambridge Judge Business School, University of Cambridge, Cambridge, UK
| | | | - H-O Pörtner
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
| | - S I Seneviratne
- Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland
| | - A Thomas
- Climate Analytics, 10961 Berlin, Germany
- Environmental and Life Sciences, University of the Bahamas, Nassau 76905, Bahamas
| | - R Warren
- Tyndall Centre for Climate Change Research and School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK
| | - G Zhou
- State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China
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19
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Hoegh-Guldberg O, Jacob D, Taylor M, Guillén Bolaños T, Bindi M, Brown S, Camilloni IA, Diedhiou A, Djalante R, Ebi K, Engelbrecht F, Guiot J, Hijioka Y, Mehrotra S, Hope CW, Payne AJ, Pörtner HO, Seneviratne SI, Thomas A, Warren R, Zhou G. The human imperative of stabilizing global climate change at 1.5°C. Science 2019; 365:365/6459/eaaw6974. [DOI: 10.1126/science.aaw6974] [Citation(s) in RCA: 271] [Impact Index Per Article: 54.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 08/01/2019] [Indexed: 12/13/2022]
Abstract
Increased concentrations of atmospheric greenhouse gases have led to a global mean surface temperature 1.0°C higher than during the pre-industrial period. We expand on the recent IPCC Special Report on global warming of 1.5°C and review the additional risks associated with higher levels of warming, each having major implications for multiple geographies, climates, and ecosystems. Limiting warming to 1.5°C rather than 2.0°C would be required to maintain substantial proportions of ecosystems and would have clear benefits for human health and economies. These conclusions are relevant for people everywhere, particularly in low- and middle-income countries, where the escalation of climate-related risks may prevent the achievement of the United Nations Sustainable Development Goals.
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20
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Addad A, Carrez P, Cordier P, Jacob D, Karato S, Mohiuddin A, Mussi A, Nzogang BC, Roussel P, Tommasi A. Anhydrous Phase B: Transmission Electron Microscope Characterization and Elastic Properties. Geochem Geophys Geosyst 2019; 20:4059-4072. [PMID: 31762710 PMCID: PMC6853247 DOI: 10.1029/2019gc008429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/19/2019] [Accepted: 07/19/2019] [Indexed: 06/10/2023]
Abstract
Anhydrous phase B and stishovite formed directly from olivine in experiments at 14 GPa and 1400 °CThe structure of anhydrous phase B is determined ab initio from precession electron diffraction tomography in transmission electron microscopyElastic and seismic properties of anhydrous phase B are calculated.
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Affiliation(s)
- A. Addad
- Université de Lille, CNRS, INRA, ENSCL, UMR 8207 ‐ UMET ‐ Unité Matériaux et TransformationsLilleFrance
| | - P. Carrez
- Université de Lille, CNRS, INRA, ENSCL, UMR 8207 ‐ UMET ‐ Unité Matériaux et TransformationsLilleFrance
| | - P. Cordier
- Université de Lille, CNRS, INRA, ENSCL, UMR 8207 ‐ UMET ‐ Unité Matériaux et TransformationsLilleFrance
| | - D. Jacob
- Université de Lille, CNRS, INRA, ENSCL, UMR 8207 ‐ UMET ‐ Unité Matériaux et TransformationsLilleFrance
| | - S.‐I. Karato
- Department of Geology and GeophysicsYale UniversityNew HavenCTUSA
| | - A. Mohiuddin
- Department of Geology and GeophysicsYale UniversityNew HavenCTUSA
| | - A. Mussi
- Université de Lille, CNRS, INRA, ENSCL, UMR 8207 ‐ UMET ‐ Unité Matériaux et TransformationsLilleFrance
| | - B. C. Nzogang
- Université de Lille, CNRS, INRA, ENSCL, UMR 8207 ‐ UMET ‐ Unité Matériaux et TransformationsLilleFrance
| | - P. Roussel
- Université de Lille, CNRS, Centrale Lille, ENSCL, Université d'Artois, UMR 8181 ‐ UCCS ‐ Unité de Catalyse et de Chimie du SolideLilleFrance
| | - A. Tommasi
- Université de Montpellier, CNRS, Geosciences MontpellierMontpellierFrance
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21
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Krause C, Schawitzke A, Grunow R, Jacob D, Röcken C, Egberts JH. Seltene Differenzialdiagnose PET-positiver pulmonaler Raumforderungen. Chirurg 2019; 90:493-495. [DOI: 10.1007/s00104-019-0803-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Ngen EJ, Benham Azad B, Boinapally S, Lisok A, Brummet M, Jacob D, Pomper MG, Banerjee SR. MRI Assessment of Prostate-Specific Membrane Antigen (PSMA) Targeting by a PSMA-Targeted Magnetic Nanoparticle: Potential for Image-Guided Therapy. Mol Pharm 2019; 16:2060-2068. [DOI: 10.1021/acs.molpharmaceut.9b00036] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ethel J. Ngen
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
| | - Babak Benham Azad
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
| | - Srikanth Boinapally
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
| | - Ala Lisok
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
| | - Mary Brummet
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
| | - Desmond Jacob
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
| | - Martin G. Pomper
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, United States
| | - Sangeeta R. Banerjee
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, United States
- The F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Research Institute, Baltimore, Maryland 21205, United States
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23
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Zelinski M, Ting A, Bishop C, Lawson M, Liang L, Hobbs T, Jacob D, Lee D. Vitrified macaque ovarian cortical tissue transplanted to heterotopic sites produces fertilizable oocytes. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Goggins E, Kakkad S, Mironchik Y, Jacob D, Wildes F, Krishnamachary B, Bhujwalla ZM. Hypoxia Inducible Factors Modify Collagen I Fibers in MDA-MB-231 Triple Negative Breast Cancer Xenografts. Neoplasia 2017; 20:131-139. [PMID: 29247885 PMCID: PMC5884039 DOI: 10.1016/j.neo.2017.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/18/2017] [Accepted: 11/20/2017] [Indexed: 12/14/2022] Open
Abstract
Hypoxia inducible factors (HIFs) are transcription factors that mediate the response of cells to hypoxia. HIFs have wide-ranging effects on metabolism, the tumor microenvironment (TME) and the extracellular matrix (ECM). Here we investigated the silencing effects of two of the three known isoforms, HIF-1α and HIF-2α, on collagen 1 (Col1) fibers, which form a major component of the ECM of tumors. Using a loss-of-function approach for HIF-1α or 2α or both HIF-1α and 2α, we identified a relationship between HIFs and Col1 fibers in MDA-MB-231 tumors. Tumors derived from MDA-MB-231 cells with HIF-1α or 2α or both HIF-1α and 2α silenced contained higher percent fiber volume and lower inter-fiber distance compared to tumors derived from empty vector MDA-MB-231 cells. Depending upon the type of silencing, we observed changes in Col1 degrading enzymes, and enzymes involved in Col1 synthesis and deposition. Additionally, a reduction in lysyl oxidase protein expression in HIF-down-regulated tumors suggests that more non-cross-linked fibers were present. Collectively these results identify the role of HIFs in modifying the ECM and the TME and provide new insights into the effects of hypoxia on the tumor ECM.
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Affiliation(s)
- Eibhlin Goggins
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, D.C. 20057, USA
| | - Samata Kakkad
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yelena Mironchik
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Desmond Jacob
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Flonne Wildes
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Balaji Krishnamachary
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Zaver M Bhujwalla
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University, School of Medicine, Baltimore, MD, USA.
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Krishnamachary B, Stasinopoulos I, Kakkad S, Penet MF, Jacob D, Wildes F, Mironchik Y, Pathak AP, Solaiyappan M, Bhujwalla ZM. Breast cancer cell cyclooxygenase-2 expression alters extracellular matrix structure and function and numbers of cancer associated fibroblasts. Oncotarget 2017; 8:17981-17994. [PMID: 28152501 PMCID: PMC5392301 DOI: 10.18632/oncotarget.14912] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 12/27/2016] [Indexed: 01/21/2023] Open
Abstract
Cyclooxygenase-2 (COX-2) is a critically important mediator of inflammation that significantly influences tumor angiogenesis, invasion, and metastasis. We investigated the role of COX-2 expressed by triple negative breast cancer cells in altering the structure and function of the extracellular matrix (ECM). COX-2 downregulation effects on ECM structure and function were investigated using magnetic resonance imaging (MRI) and second harmonic generation (SHG) microscopy of tumors derived from triple negative MDA-MB-231 breast cancer cells, and a derived clone stably expressing a short hairpin (shRNA) molecule downregulating COX-2. MRI of albumin-GdDTPA was used to characterize macromolecular fluid transport in vivo and SHG microscopy was used to quantify collagen 1 (Col1) fiber morphology. COX-2 downregulation decreased Col1 fiber density and altered macromolecular fluid transport. Immunohistochemistry identified significantly fewer activated cancer associated fibroblasts (CAFs) in low COX-2 expressing tumors. Metastatic lung nodules established by COX-2 downregulated cells were infrequent, smaller, and contained fewer Col1 fibers.COX-2 overexpression studies were performed with tumors derived from triple negative SUM-149 breast cancer cells lentivirally transduced to overexpress COX-2. SHG microscopy identified significantly higher Col1 fiber density in COX-2 overexpressing tumors with an increase of CAFs. These data expand upon the roles of COX-2 in shaping the structure and function of the ECM in primary and metastatic tumors, and identify the potential role of COX-2 in modifying the number of CAFs in tumors that may have contributed to the altered ECM.
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Affiliation(s)
- Balaji Krishnamachary
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD 21205, USA
| | - Ioannis Stasinopoulos
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD 21205, USA
| | - Samata Kakkad
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD 21205, USA
| | - Marie-France Penet
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD 21205, USA.,Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Desmond Jacob
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD 21205, USA
| | - Flonne Wildes
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD 21205, USA
| | - Yelena Mironchik
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD 21205, USA
| | - Arvind P Pathak
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD 21205, USA.,Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Meiyappan Solaiyappan
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD 21205, USA
| | - Zaver M Bhujwalla
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD 21205, USA.,Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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26
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Friesecke S, Träger K, Schittek GA, Molnar Z, Bach F, Kogelmann K, Bogdanski R, Weyland A, Nierhaus A, Nestler F, Olboeter D, Tomescu D, Jacob D, Haake H, Grigoryev E, Nitsch M, Baumann A, Quintel M, Schott M, Kielstein JT, Meier-Hellmann A, Born F, Schumacher U, Singer M, Kellum J, Brunkhorst FM. International registry on the use of the CytoSorb® adsorber in ICU patients : Study protocol and preliminary results. Med Klin Intensivmed Notfmed 2017; 114:699-707. [PMID: 28871441 DOI: 10.1007/s00063-017-0342-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/10/2017] [Accepted: 07/10/2017] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The aim of this clinical registry is to record the use of CytoSorb® adsorber device in critically ill patients under real-life conditions. METHODS The registry records all relevant information in the course of product use, e. g., diagnosis, comorbidities, course of the condition, treatment, concomitant medication, clinical laboratory parameters, and outcome (ClinicalTrials.gov Identifier: NCT02312024). Primary endpoint is in-hospital mortality as compared to the mortality predicted by the APACHE II and SAPS II score, respectively. RESULTS As of January 30, 2017, 130 centers from 22 countries were participating. Data available from the start of the registry on May 18, 2015 to November 24, 2016 (122 centers; 22 countries) were analyzed, of whom 20 centers from four countries provided data for a total of 198 patients (mean age 60.3 ± 15.1 years, 135 men [68.2%]). In all, 192 (97.0%) had 1 to 5 Cytosorb® adsorber applications. Sepsis was the most common indication for CytoSorb® treatment (135 patients). Mean APACHE II score in this group was 33.1 ± 8.4 [range 15-52] with a predicted risk of death of 78%, whereas the observed mortality was 65%. There were no significant decreases in the SOFA scores after treatment (17.2 ± 4.8 [3-24]). However interleukin-6 levels were markedly reduced after treatment (median 5000 pg/ml before and 289 pg/ml after treatment, respectively). CONCLUSIONS This third interim report demonstrates the feasibility of the registry with excellent data quality and completeness from 20 study centers. The results must be interpreted with caution, since the numbers are still small; however the disease severity is remarkably high and suggests that adsorber treatment might be used as an ultimate treatment in life-threatening situations. There were no device-associated side effects.
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Affiliation(s)
- S Friesecke
- Klinik und Poliklinik für Innere Medizin B, Universitätsmedizin Greifswald, Greifswald, Germany
| | - K Träger
- Kardioanästhesiologie, Universitätsklinikum Ulm, Ulm, Germany
| | - G A Schittek
- Klinik für Anästhesiologie, Intensivtherapie und Palliativmedizin, Carl-Thiem-Klinikum Cottbus, Cottbus, Germany
| | - Z Molnar
- Department of Anesthesiology and Intensive Care, University of Szeged, Szeged, Hungary
| | - F Bach
- Klinik für Anästhesiologie, Intensiv‑, Notfallmedizin, Transfusionsmedizin und Schmerztherapie, Evangelisches Krankenhaus Bielefeld, Bielefeld, Germany
| | - K Kogelmann
- Klinik für Anästhesiologie und Intensivmedizin, Hans-Susemihl-Krankenhaus gGmbH, Emden, Germany
| | - R Bogdanski
- Klinik für Anästhesiologie, AG Hämodynamik, Klinikum rechts der Isar TU München, München, Germany
| | - A Weyland
- Universitätsklinik für Anästhesiologie/Intensiv‑/Notfallmedizin/Schmerztherapie, Klinikum Oldenburg gGmbH, Carl von Ossietzky Universität, Oldenburg, Germany
| | - A Nierhaus
- Klinik für Intensivmedizin, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - F Nestler
- Anästhesie und Intensivmedizin, Kliniken Erlabrunn gGmbH, Breitenbrunn, Germany
| | - D Olboeter
- Anästhesie und Intensivmedizin, Krankenhaus Herzberg, Elbe-Elster-Klinikum GmbH, Herzberg, Germany
| | - D Tomescu
- Fundeni Clinical Institute, Bucharest, Romania
| | - D Jacob
- Klinik für Allgemein‑, Viszeral- und Gefäßchirurgie, Universitätsklinikum Magdeburg, Magdeburg, Germany
| | - H Haake
- Klinik für Kardiologie und Intensivmedizin, Kliniken Maria Hilf GmbH, Mönchengladbach, Germany
| | - E Grigoryev
- Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation
| | - M Nitsch
- Klinik für Anästhesie, Intensiv‑, Notfallmedizin und Schmerztherapie, Krankenhaus St. Elisabeth und St. Barbara Halle, Halle, Germany
| | - A Baumann
- Klinik für Anästhesie, Intensiv‑, Palliativ- und Schmerzmedizin, Berufsgenossensch. Uniklinik Bergmannsheil, Bochum, Germany
| | - M Quintel
- Zentrum Anästhesiologie, Rettungs-und Intensivmedizin, Universitätsklinikum Göttingen, Göttingen, Germany
| | - M Schott
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Klinikum Region Hannover Nordstadt, Hannover, Germany
| | - J T Kielstein
- Medizinische Klinik V, Klinikum Braunschweig, Braunschweig, Germany
| | - A Meier-Hellmann
- Anästhesie, Intensivmedizin und Schmerztherapie, HELIOS Klinikums Erfurt, Erfurt, Germany
| | - F Born
- Herzchirurgische Klinik und Poliklinik, LMU München, München, Germany
| | - U Schumacher
- Center for Clinical Studies Jena (ZKS), Jena, Germany
| | - M Singer
- Intensive Care Medicine, University College London, London, UK
| | - J Kellum
- Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, USA
| | - F M Brunkhorst
- Center for Clinical Studies Jena (ZKS), Jena, Germany. .,Center for Sepsis Control and Care (CSCC), Jena, Germany. .,Department of Anaesthesiology and Intensive Care Medicine, Jena University Hospital, Erlanger Allee 101, 07747, Jena, Germany.
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Jacob D, Deborde C, Lefebvre M, Maucourt M, Moing A. NMRProcFlow: a graphical and interactive tool dedicated to 1D spectra processing for NMR-based metabolomics. Metabolomics 2017; 13:36. [PMID: 28261014 PMCID: PMC5313591 DOI: 10.1007/s11306-017-1178-y] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 02/06/2017] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Concerning NMR-based metabolomics, 1D spectra processing often requires an expert eye for disentangling the intertwined peaks. OBJECTIVES The objective of NMRProcFlow is to assist the expert in this task in the best way without requirement of programming skills. METHODS NMRProcFlow was developed to be a graphical and interactive 1D NMR (1H & 13C) spectra processing tool. RESULTS NMRProcFlow (http://nmrprocflow.org), dedicated to metabolic fingerprinting and targeted metabolomics, covers all spectra processing steps including baseline correction, chemical shift calibration and alignment. CONCLUSION Biologists and NMR spectroscopists can easily interact and develop synergies by visualizing the NMR spectra along with their corresponding experimental-factor levels, thus setting a bridge between experimental design and subsequent statistical analyses.
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Affiliation(s)
- D. Jacob
- UMR1332 Fruit Biology and Pathology, INRA, Univ. Bordeaux, Plateforme Métabolome Bordeaux-MetaboHUB, 71 avenue Edouard Bourlaux, 33140 Villenave d’Ornon, France
| | - C. Deborde
- UMR1332 Fruit Biology and Pathology, INRA, Univ. Bordeaux, Plateforme Métabolome Bordeaux-MetaboHUB, 71 avenue Edouard Bourlaux, 33140 Villenave d’Ornon, France
| | - M. Lefebvre
- UMR1332 Fruit Biology and Pathology, INRA, Univ. Bordeaux, Plateforme Métabolome Bordeaux-MetaboHUB, 71 avenue Edouard Bourlaux, 33140 Villenave d’Ornon, France
| | - M. Maucourt
- UMR1332 Fruit Biology and Pathology, INRA, Univ. Bordeaux, Plateforme Métabolome Bordeaux-MetaboHUB, 71 avenue Edouard Bourlaux, 33140 Villenave d’Ornon, France
| | - A. Moing
- UMR1332 Fruit Biology and Pathology, INRA, Univ. Bordeaux, Plateforme Métabolome Bordeaux-MetaboHUB, 71 avenue Edouard Bourlaux, 33140 Villenave d’Ornon, France
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Hassan Y, Head V, Jacob D, Bachmann MO, Diu S, Ford J. Lifestyle interventions for weight loss in adults with severe obesity: a systematic review. Clin Obes 2016; 6:395-403. [PMID: 27788558 DOI: 10.1111/cob.12161] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [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: 05/08/2016] [Revised: 06/24/2016] [Accepted: 07/21/2016] [Indexed: 11/26/2022]
Abstract
Severe obesity is an increasingly prevalent condition and is often associated with long-term comorbidities, reduced survival and higher healthcare costs. Non-surgical methods avoid the side effects, complications and costs of surgery, but it is unclear which non-surgical method is most effective. The objective of this article was to systematically review the effectiveness of lifestyle interventions compared to standard or minimal care for weight loss in adults with severe obesity. MEDLINE, EMBASE, CENTRAL, databases of on-going studies, reference lists of any relevant systematic reviews and the Cochrane Library database were searched from inception to February 2016 for relevant randomized controlled trials (RCTs). Inclusion criteria were participants with severe obesity (body mass index [BMI] > 40 kg/m2 or BMI > 35 kg/m2 with comorbidity) and interventions with a minimal duration of 12 weeks that were multi-component combinations of diet, exercise and behavioural therapy. Risk of bias was evaluated using the Cochrane risk of bias criteria. Meta-analysis was not possible because of methodological heterogeneity. Seventeen RCTs met the inclusion criteria. Weight change in kilograms of participants from baseline to follow-up was reported for 14 studies. Participants receiving the lifestyle intervention had a greater decrease in weight than participants in the control group for all studies (1.0-11.5 kg). Lifestyle interventions varied greatly between the studies. Overall lifestyle interventions with combined diet and exercise components achieved the greatest weight loss. Lifestyle interventions for weight loss in adults with severe obesity were found to result in increased weight loss when compared to minimal or standard care, especially those with combined diet and exercise components.
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Affiliation(s)
- Y Hassan
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - V Head
- Norfolk Public Health, Norfolk County Council, Norfolk, UK
| | - D Jacob
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - M O Bachmann
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - S Diu
- Norfolk Public Health, Norfolk County Council, Norfolk, UK
| | - J Ford
- Norwich Medical School, University of East Anglia, Norwich, UK
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Karolak M, Jacob D. Effects of valence, geometry and electronic correlations on transport in transition metal benzene sandwich molecules. J Phys Condens Matter 2016; 28:445301. [PMID: 27605217 DOI: 10.1088/0953-8984/28/44/445301] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We study the impact of the valence and the geometry on the electronic structure and transport properties of different transition metal-benzene sandwich molecules bridging the tips of a Cu nanocontact. Our density-functional calculations show that the electronic transport properties of the molecules depend strongly on the molecular geometry which can be controlled by the nanocontact tips. Depending on the valence of the transition metal center certain molecules can be tuned in and out of half-metallic behaviour facilitating potential spintronics applications. We also discuss our results in the framework of an Anderson impurity model, indicating cases where the inclusion of local correlations alters the ground state qualitatively. For Co and V centered molecules we find indications of an orbital Kondo effect.
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Affiliation(s)
- M Karolak
- Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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Kakkad S, Zhang J, Akhbardeh A, Jacob D, Krishnamachary B, Solaiyappan M, Jacobs MA, Raman V, Leibfritz D, Glunde K, Bhujwalla ZM. Collagen fibers mediate MRI-detected water diffusion and anisotropy in breast cancers. Neoplasia 2016; 18:585-593. [PMID: 27742013 PMCID: PMC5035345 DOI: 10.1016/j.neo.2016.08.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 08/15/2016] [Accepted: 08/19/2016] [Indexed: 12/19/2022] Open
Abstract
Collagen 1 (Col1) fibers play an important role in tumor interstitial macromolecular transport and cancer cell dissemination. Our goal was to understand the influence of Col1 fibers on water diffusion, and to examine the potential of using noninvasive diffusion tensor imaging (DTI) to indirectly detect Col1 fibers in breast lesions. We previously observed, in human MDA-MB-231 breast cancer xenografts engineered to fluoresce under hypoxia, relatively low amounts of Col1 fibers in fluorescent hypoxic regions. These xenograft tumors together with human breast cancer samples were used here to investigate the relationship between Col1 fibers, water diffusion and anisotropy, and hypoxia. Hypoxic low Col1 fiber containing regions showed decreased apparent diffusion coefficient (ADC) and fractional anisotropy (FA) compared to normoxic high Col1 fiber containing regions. Necrotic high Col1 fiber containing regions showed increased ADC with decreased FA values compared to normoxic viable high Col1 fiber regions that had increased ADC with increased FA values. A good agreement of ADC and FA patterns was observed between in vivo and ex vivo images. In human breast cancer specimens, ADC and FA decreased in low Col1 containing regions. Our data suggest that a decrease in ADC and FA values observed within a lesion could predict hypoxia, and a pattern of high ADC with low FA values could predict necrosis. Collectively the data identify the role of Col1 fibers in directed water movement and support expanding the evaluation of DTI parameters as surrogates for Col1 fiber patterns associated with specific tumor microenvironments as companion diagnostics and for staging.
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Affiliation(s)
- Samata Kakkad
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science; Department of Chemistry and Biology, University of Bremen, Bremen, Germany
| | - Jiangyang Zhang
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science
| | - Alireza Akhbardeh
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science
| | - Desmond Jacob
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science
| | - Balaji Krishnamachary
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science
| | - Meiyappan Solaiyappan
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science
| | - Michael A Jacobs
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science; Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Venu Raman
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science; Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Dieter Leibfritz
- Department of Chemistry and Biology, University of Bremen, Bremen, Germany
| | - Kristine Glunde
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science; Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Zaver M Bhujwalla
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science; Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Lodes U, Tröger U, Jacob D, Meyer F. Klinisch-pharmakologisches Counseling („Drug Interaction Stewardship“ – DIS) als Teil des interdisziplinären perioperativen Patientenmanagements. Zentralbl Chir 2016. [DOI: 10.1055/s-0036-1586273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Shah T, Krishnamachary B, Wildes F, Mironchik Y, Kakkad SM, Jacob D, Artemov D, Bhujwalla ZM. HIF isoforms have divergent effects on invasion, metastasis, metabolism and formation of lipid droplets. Oncotarget 2016; 6:28104-19. [PMID: 26305551 PMCID: PMC4695047 DOI: 10.18632/oncotarget.4612] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 07/08/2015] [Indexed: 12/17/2022] Open
Abstract
Cancer cells adapt to hypoxia by the stabilization of hypoxia inducible factor (HIF)-α isoforms that increase the transcription of several genes. Among the genes regulated by HIF are enzymes that play a role in invasion, metastasis and metabolism. We engineered triple (estrogen receptor/progesterone receptor/HER2/neu) negative, invasive MDA-MB-231 and SUM149 human breast cancer cells to silence the expression of HIF-1α, HIF-2α or both isoforms of HIF-α. We determined the metabolic consequences of HIF silencing and the ability of HIF-α silenced cells to invade and degrade the extracellular matrix (ECM) under carefully controlled normoxic and hypoxic conditions. We found that silencing HIF-1α alone was not sufficient to attenuate invasiveness in both MDA-MB-231 and SUM149 cell lines. Significantly reduced metastatic burden was observed in single (HIF-1α or HIF-2α) and double α-isoform silenced cells, with the reduction most evident when both HIF-1α and HIF-2α were silenced in MDA-MB-231 cells. HIF-2α played a major role in altering cell metabolism. Lipids and lipid droplets were significantly reduced in HIF-2α and double silenced MDA-MB-231 and SUM149 cells, implicating HIF in their regulation. In addition, lactate production and glucose consumption were reduced. These results suggest that in vivo, cells in or near hypoxic regions are likely to be more invasive. The data indicate that targeting HIF-1α alone is not sufficient to attenuate invasiveness, and that both HIF-1α and HIF-2α play a role in the metastatic cascade in these two cell lines.
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Affiliation(s)
- Tariq Shah
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD, USA
| | - Balaji Krishnamachary
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD, USA
| | - Flonne Wildes
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD, USA
| | - Yelena Mironchik
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD, USA
| | - Samata M Kakkad
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD, USA
| | - Desmond Jacob
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD, USA
| | - Dmitri Artemov
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD, USA.,Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Zaver M Bhujwalla
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD, USA.,Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Granero D, Candela-Juan C, Vijande J, Ballester F, Perez-Calatayud J, Jacob D, Mourtada F. SU-F-T-63: Dosimetric Relevance of the Valencia and Leipzig HDR Applicators Plastic Cap. Med Phys 2016. [DOI: 10.1118/1.4956469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Sharma A, Jacob D, Atluri H, Nanda A. PS249 Incidence of New Wall Motion Abnormalities on Transthoracic Echocardiogram in Non ST Elevation Myocardial Infarction and its Role in the Likelihood of Revascularization. Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Granero D, Candela-Juan C, Vijande J, Ballester F, Perez-Calatayud J, Jacob D, Mourtada F. Technical Note: Dosimetry of Leipzig and Valencia applicators without the plastic cap. Med Phys 2016; 43:2087. [DOI: 10.1118/1.4944784] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Taylor M, Gregory R, Tomlins P, Jacob D, Hubble J, Sahota T. Closed-loop glycaemic control using an implantable artificial pancreas in diabetic domestic pig ( Sus scrofa domesticus ). Int J Pharm 2016; 500:371-8. [DOI: 10.1016/j.ijpharm.2015.12.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 11/30/2015] [Accepted: 12/09/2015] [Indexed: 01/30/2023]
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Mori N, Wildes F, Kakkad S, Jacob D, Solaiyappan M, Glunde K, Bhujwalla ZM. Choline kinase-α protein and phosphatidylcholine but not phosphocholine are required for breast cancer cell survival. NMR Biomed 2015; 28:1697-1706. [PMID: 26503172 DOI: 10.1002/nbm.3429] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 09/03/2015] [Accepted: 09/11/2015] [Indexed: 06/05/2023]
Abstract
High levels of total choline and phosphocholine (PC) are consistently observed in aggressive cancers. Choline kinase (Chk) catalyzes choline phosphorylation to produce PC in phosphatidylcholine (PtdCho) biosynthesis. PtdCho is the most abundant phospholipid in eukaryotic cell membranes and plays a dual role as the structural component of membranes and as a substrate to produce lipid second messengers such as phosphatidic acid and diacylglycerol. Chk-α, but not Chk-β, is overexpressed in various cancers, and is closely associated with tumor progression and invasiveness. We have previously shown that downregulation of mRNA using small interfering RNA (siRNA) against Chk-α (siRNA-Chk) or Chk short hairpin RNA, and the resultant decrease of Chk-α protein levels, significantly reduced proliferation in breast cancer cells and tumors. A novel potent and selective small-molecule Chk-α inhibitor, V-11-0711, that inhibits the catalytic activity of Chk has recently been developed. Here, we used triple negative MDA-MB-231 and SUM149 breast cancer cells to further investigate the role of Chk-α in cancer, by examining Chk-α protein levels, cell viability/proliferation, choline phospholipid and lipid metabolism, lipid droplet formation, and apoptosis, following treatment with V-11-0711. Under the conditions used in this study, treatment with V-11-0711 significantly decreased PC levels but did not reduce cell viability as long as Chk-α protein and PtdCho levels were not reduced, suggesting that Chk-α protein and PtdCho, but not PC, may be crucial for breast cancer cell survival. These data also support the approach of antitumor strategies that destabilize Chk-α protein or downregulate PtdCho in breast cancer treatment.
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Affiliation(s)
- Noriko Mori
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, School of Medicine, The Johns Hopkins University, Baltimore, MD, USA
| | - Flonné Wildes
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, School of Medicine, The Johns Hopkins University, Baltimore, MD, USA
| | - Samata Kakkad
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, School of Medicine, The Johns Hopkins University, Baltimore, MD, USA
| | - Desmond Jacob
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, School of Medicine, The Johns Hopkins University, Baltimore, MD, USA
| | - Meiyappan Solaiyappan
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, School of Medicine, The Johns Hopkins University, Baltimore, MD, USA
| | - Kristine Glunde
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, School of Medicine, The Johns Hopkins University, Baltimore, MD, USA
- Sidney Kimmel Comprehensive Cancer Center, School of Medicine, The Johns Hopkins University, Baltimore, MD, USA
| | - Zaver M Bhujwalla
- JHU ICMIC Program, Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, School of Medicine, The Johns Hopkins University, Baltimore, MD, USA
- Sidney Kimmel Comprehensive Cancer Center, School of Medicine, The Johns Hopkins University, Baltimore, MD, USA
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Singh D, Jacob D, Ahmed I. Role of computed tomography perfusion imaging in the diagnosis of migraine. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.1450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Krishnamachary B, Stassinopoulos I, Kakkad SM, Penet MF, Jacob D, Wildes F, Mironchik Y, Pathak A, Solaiyappan M, Bhujwalla ZM. Abstract 4021: Cyclooxygenase-2 downregulation reduces activated fibroblasts and modifies the extracellular matrix in MDA-MB-231 breast cancer xenograft. Cancer Res 2015. [DOI: 10.1158/1538-7445.am2015-4021] [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: 11/16/2022]
Abstract
Abstract
COX-2 is an important mediator of inflammation that significantly influences tumor angiogenesis, invasion and metastasis. Here, we have investigated the role of COX-2 in modifying the number of activated cancer associated fibroblasts (CAFs) and in altering the extracellular matrix (ECM) in a breast cancer model.
To investigate the role of COX-2 in modulating the ECM, we used an MDA-MB-231 cell clone (Clone 13) expressing a short hairpin RNA (shRNA) to downregulate COX-2 [1]. Clone 13 cells were characterized for significantly lower basal and TPA-induced COX-2 and PGE2 expression compared to parental MDA-MB-231 cells using ELISA (PGE2), western blot (COX-2 protein) and q-RT-PCR (COX-2 mRNA). Tumors were derived from parental (n = 5) and Clone 13 (n = 6) MDA-MB-231 cells following inoculation in the mammary fat pad in SCID mice. Tumors were excised at ∼ 500 mm3 and immunohistochemically stained to quantify vessel density (CD31) and activated CAFs (α-smooth muscle actin (SMA)) in 5 μm thick formalin fixed sections. Stained sections were digitally scanned and positive staining quantified using manufacturer supplied software (Aperio Technologies, CA).
Clone 13 tumors showed delayed tumor growth compared to parental MDA-MB-231 tumors. We have previously observed that collagen 1 (Col1) fiber density and fiber volume were significantly lower in COX-2 reduced Clone 13 tumors compared to parental tumors [2]. While cancer cells shape Col1 fiber patterns through the secretion of various enzymes, Col1 fiber is laid down by activated CAFs within or around the tumor. Quantification of activated CAFs by immunohistochemistry for α-SMA in the tumors, and immunoblotting for α-SMA of crude protein extracted from the tumors, revealed significantly fewer CAFs and significantly reduced levels of α-SMA protein in Clone 13 tumors compared to parental MDA-MB-231 tumors. We previously observed a significant decrease in permeability as well as reduced influx and efflux of macromolecular transport in Clone 13 tumors compared to parental tumors, but no difference in vascular volume [2]. Immunohistochemistry for CD31 staining of endothelial cells did not detect a significant difference in CD31 density between Clone 13 and parental tumors further confirming our previous observations about vascular volume. These data reveal the multi-faceted effects of COX-2 in modifying the structure and function of the ECM, and identify the ability to attract and activate fibroblasts as one mechanism by which COX-2 modifies the ECM.
Acknowledgements: We thank Mr. Gary Cromwell for technical assistance. This work was supported by NIH R01CA82337 and P50 CA103175.
References: [1] Stasinopoulos, I., et al., Mol Cancer Res, 2007; [2], Stasinopoulos, I., et al., AACR, 2013 Chicago.
Citation Format: Balaji Krishnamachary, Ioannis Stassinopoulos, Samata M. Kakkad, Marie-France Penet, Desmond Jacob, Flonne Wildes, Yelena Mironchik, Arvind Pathak, Meiyappan Solaiyappan, Zaver M. Bhujwalla. Cyclooxygenase-2 downregulation reduces activated fibroblasts and modifies the extracellular matrix in MDA-MB-231 breast cancer xenograft. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 4021. doi:10.1158/1538-7445.AM2015-4021
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Köckerling F, Jacob D, Wiegank W, Hukauf M, Schug-Pass C, Kuthe A, Bittner R. Endoscopic repair of primary versus recurrent male unilateral inguinal hernias: Are there differences in the outcome? Surg Endosc 2015; 30:1146-55. [PMID: 26139485 PMCID: PMC4757618 DOI: 10.1007/s00464-015-4318-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 06/08/2015] [Indexed: 11/24/2022]
Abstract
Introduction
To date, there are no prospective randomized studies that compare the outcome of endoscopic repair of primary versus recurrent inguinal hernias. It is therefore now attempted to answer that key question on the basis of registry data. Patients and methods In total, 20,624 patients were enrolled between September 1, 2009, and April 31, 2013. Of these patients, 18,142 (88.0 %) had a primary and 2482 (12.0 %) had a recurrent endoscopic repair. Only patients with male unilateral inguinal hernia and with a 1-year follow-up were included. The dependent variables were intra- and postoperative complications, reoperations, recurrence, and chronic pain rates. The results of unadjusted analyses were verified via multivariable analyses. Results Unadjusted analysis did not reveal any significant differences in the intraoperative complications (1.28 vs 1.33 %; p = 0.849); however, there were significant differences in the postoperative complications (3.20 vs 4.03 %; p = 0.036), the reoperation rate due to complications (0.84 vs 1.33 %; p = 0.023), pain at rest (4.08 vs 6.16 %; p < 0.001), pain on exertion (8.03 vs 11.44 %; p < 0.001), chronic pain requiring treatment (2.31 vs 3.83 %; p < 0.001), and the recurrence rates (0.94 vs 1.45 %; p = 0.0023). Multivariable analysis confirmed the significant impact of endoscopic repair of recurrent hernia on the outcome. Conclusion Comparison of perioperative and 1-year outcome for endoscopic repair of primary versus recurrent male unilateral inguinal hernia showed significant differences to the disadvantage of the recurrent operation. Therefore, endoscopic repair of recurrent inguinal hernias calls for particular competence on the part of the hernia surgeon.
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Affiliation(s)
- F Köckerling
- Department of Surgery and Center for Minimally Invasive Surgery, Academic Teaching Hospital of Charité Medical School, Vivantes Hospital, Neue Bergstrasse 6, 13585, Berlin, Germany.
| | - D Jacob
- Department of Surgery and Center for Minimally Invasive Surgery, Academic Teaching Hospital of Charité Medical School, Vivantes Hospital, Neue Bergstrasse 6, 13585, Berlin, Germany
| | - W Wiegank
- Department of Surgery and Center for Minimally Invasive Surgery, Academic Teaching Hospital of Charité Medical School, Vivantes Hospital, Neue Bergstrasse 6, 13585, Berlin, Germany
| | - M Hukauf
- StatConsult GmbH, Halberstädter Strasse 40 a, 39112, Magdeburg, Germany
| | - C Schug-Pass
- Department of Surgery and Center for Minimally Invasive Surgery, Academic Teaching Hospital of Charité Medical School, Vivantes Hospital, Neue Bergstrasse 6, 13585, Berlin, Germany
| | - A Kuthe
- Department of General and Visceral Surgery, German Red Cross Hospital, Lützerodestrasse 1, 30161, Hannover, Germany
| | - R Bittner
- Hernia Center, Winghofer Medicum, Winghofer Strasse 42, 72108, Rottenburg am Neckar, Germany
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Köckerling F, Bittner R, Jacob D, Schug-Pass C, Laurenz C, Adolf D, Keller T, Stechemesser B. Do we need antibiotic prophylaxis in endoscopic inguinal hernia repair? Results of the Herniamed Registry. Surg Endosc 2015; 29:3741-9. [PMID: 25786905 PMCID: PMC4648957 DOI: 10.1007/s00464-015-4149-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 02/06/2015] [Indexed: 11/29/2022]
Abstract
Introduction The use of antibiotic prophylaxis in inguinal hernia repair is a controversial issue. Accepted randomized controlled trials or registry data with specific analysis of endoscopic repaired patients do not exist. Patient and methods The data presented in this study compared the prospectively collected data from the Herniamed Registry on all patients who had undergone unilateral, bilateral or recurrent repair of inguinal hernias using either endoscopic or open techniques between September 1, 2009, and March 5, 2014. In total, 85,033 patients were enrolled. Of these patients, 48,201 (56.7 %) had an endoscopic and 36,832 (43.3 %) an open repair. The target variables analyzed were impaired wound healing and deep infections with mesh involvement within 30 days after the operation. Results Analysis of the patient group with endoscopic/laparoscopic inguinal hernia repair (n = 48,201) did not identify any significant influence of antibiotic prophylaxis on postoperative impaired wound healing, which occurred in 53 cases (p = 0.6431). Nor was it possible to identify any significant impact of antibiotic prophylaxis on the deep infections seen in 27 cases (p = 0.8409). Analysis of the open inguinal hernia repair group revealed that, unlike the laparoscopic/endoscopic group, antibiotic prophylaxis had a significant impact on the postoperative impaired wound healing and deep infection rates. The risk of postoperative impaired wound healing with antibiotic prophylaxis was significantly lower [OR 0.677 (0.479; 0.958), p = 0.027]. Conclusion The positive impact of the endoscopic/laparoscopic technique on avoidance of impaired wound healing and deep infections with mesh involvement is already so great that antibiotic prophylaxis has no additional benefit. In contrast, antibiotic prophylaxis should be administered for open inguinal hernia repair.
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Affiliation(s)
- F Köckerling
- Department of Surgery and Center for Minimally Invasive Surgery, Academic Teaching Hospital of Charité Medical School, Vivantes Hospital, Neue Bergstraße 6, 13585, Berlin, Germany.
| | - R Bittner
- Winghofer Medicum, Hernia Center, Winghofer Straße 42, 72108, Rottenburg am Neckar, Germany
| | - D Jacob
- Department of Surgery and Center for Minimally Invasive Surgery, Academic Teaching Hospital of Charité Medical School, Vivantes Hospital, Neue Bergstraße 6, 13585, Berlin, Germany
| | - C Schug-Pass
- Department of Surgery and Center for Minimally Invasive Surgery, Academic Teaching Hospital of Charité Medical School, Vivantes Hospital, Neue Bergstraße 6, 13585, Berlin, Germany
| | - C Laurenz
- Department of Surgery and Center for Minimally Invasive Surgery, Academic Teaching Hospital of Charité Medical School, Vivantes Hospital, Neue Bergstraße 6, 13585, Berlin, Germany
| | - D Adolf
- StatConsult GmbH, Halberstädter Straße 40 a, 39112, Magdeburg, Germany
| | - T Keller
- StatConsult GmbH, Halberstädter Straße 40 a, 39112, Magdeburg, Germany
| | - B Stechemesser
- Hernia Center Cologne, PAN - Hospital, Zeppelinstraße 1, 50667, Cologne, Germany
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Zasada AA, Formińska K, Zacharczuk K, Jacob D, Grunow R. Comparison of eleven commercially available rapid tests for detection of Bacillus anthracis, Francisella tularensis and Yersinia pestis. Lett Appl Microbiol 2015; 60:409-13. [PMID: 25598285 DOI: 10.1111/lam.12392] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 01/08/2015] [Accepted: 01/08/2015] [Indexed: 11/30/2022]
Abstract
UNLABELLED Yersinia pestis, Bacillus anthracis and Francisella tularensis cause serious zoonotic diseases and have the potential to cause high morbidity and mortality in humans. In case of natural outbreaks and deliberate or accidental release of these pathogens rapid detection of the bacteria is crucial for limitation of negative effects of the release. In the present study, we evaluated 11 commercially available rapid test kits for the detection of Y. pestis, B. anthracis and F. tularensis in terms of sensitivity, specificity and simplicity of the procedure. The results revealed that rapid and easy-to-perform lateral flow assays for detection of highly pathogenic bacteria have very limited sensitivity. In contrast, the immunofiltration assays showed high sensitivity but limited specificity and required a too complicated procedure to be applied in the field by nonlaboratory workers (e.g. First Responders like fire, police and emergency medical personnel). Each sample - whether tested negative or positive by the rapid tests - should be retested in a reference laboratory using validated methods. SIGNIFICANCE AND IMPACT OF THE STUDY Rapid detection of highly pathogenic bacteria causing anthrax, plague and tularemia is crucial for the limitation of negative effects of a potential release (natural, accidental or deliberate). In the study, commercially available rapid tests for detection of Bacillus anthracis, Yersinia pestis and Francisella tularensis were investigated in terms of sensitivity, specificity and ease-to-perform. The study showed problems which could be faced during testing and results interpretation. Conclusions from this study should be helpful not only in selection of the most appropriate test for particular group of First Responders but also in undertaking decisions in situation of a contamination suspicion which have high social and economical impacts.
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Affiliation(s)
- A A Zasada
- Department of Bacteriology, National Institute of Public Health - National Institute of Hygiene, Warsaw, Poland
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Pusset R, Gourdin-Bertin S, Dubois E, Chevalet J, Mériguet G, Bernard O, Dahirel V, Jardat M, Jacob D. Nonideal effects in electroacoustics of solutions of charged particles: combined experimental and theoretical analysis from simple electrolytes to small nanoparticles. Phys Chem Chem Phys 2015; 17:11779-89. [DOI: 10.1039/c5cp00487j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The electric signal induced by an ultrasonic wave in aqueous solutions of charged species is measured and modeled without any adjustable parameter.
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Affiliation(s)
- R. Pusset
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 8234
- PHENIX
- Paris
| | | | - E. Dubois
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 8234
- PHENIX
- Paris
| | - J. Chevalet
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 8234
- PHENIX
- Paris
| | - G. Mériguet
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 8234
- PHENIX
- Paris
| | - O. Bernard
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 8234
- PHENIX
- Paris
| | - V. Dahirel
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 8234
- PHENIX
- Paris
| | - M. Jardat
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 8234
- PHENIX
- Paris
| | - D. Jacob
- Cordouan Technologies
- 33600 Pessac
- France
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Grunow R, Ippolito G, Jacob D, Sauer U, Rohleder A, Di Caro A, Iacovino R. Benefits of a European project on diagnostics of highly pathogenic agents and assessment of potential "dual use" issues. Front Public Health 2014; 2:199. [PMID: 25426479 PMCID: PMC4227464 DOI: 10.3389/fpubh.2014.00199] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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: 05/28/2014] [Accepted: 10/03/2014] [Indexed: 11/13/2022] Open
Abstract
Quality assurance exercises and networking on the detection of highly infectious pathogens (QUANDHIP) is a joint action initiative set up in 2011 that has successfully unified the primary objectives of the European Network on Highly Pathogenic Bacteria (ENHPB) and of P4-laboratories (ENP4-Lab) both of which aimed to improve the efficiency, effectiveness, and response capabilities of laboratories directed at protecting the health of European citizens against high consequence bacteria and viruses of significant public health concern. Both networks have established a common collaborative consortium of 37 nationally and internationally recognized institutions with laboratory facilities from 22 European countries. The specific objectives and achievements include the initiation and establishment of a recognized and acceptable quality assurance scheme, including practical external quality assurance exercises, comprising living agents, that aims to improve laboratory performance, accuracy, and detection capabilities in support of patient management and public health responses; recognized training schemes for diagnostics and handling of highly pathogenic agents; international repositories comprising highly pathogenic bacteria and viruses for the development of standardized reference material; a standardized and transparent Biosafety and Biosecurity strategy protecting healthcare personnel and the community in dealing with high consequence pathogens; the design and organization of response capabilities dealing with cross-border events with highly infectious pathogens including the consideration of diagnostic capabilities of individual European laboratories. The project tackled several sensitive issues regarding Biosafety, Biosecurity and "dual use" concerns. The article will give an overview of the project outcomes and discuss the assessment of potential "dual use" issues.
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Affiliation(s)
| | - G. Ippolito
- Spallanzani National Institute for Infectious Diseases, Rome, Italy
| | - D. Jacob
- Robert Koch Institute, Berlin, Germany
| | - U. Sauer
- Robert Koch Institute, Berlin, Germany
| | | | - A. Di Caro
- Spallanzani National Institute for Infectious Diseases, Rome, Italy
| | - R. Iacovino
- Spallanzani National Institute for Infectious Diseases, Rome, Italy
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Jacob D, Kakkad SM, Krishnamachary B, Stasinopoulos I, Solaiyappan M, Wildes F, Glunde K, Bhujwalla ZM. Abstract 4890: Collagen 1 fibers are a key component in the establishment of distant pulmonary metastasis by breast cancer cells. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-4890] [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: 11/16/2022]
Abstract
Abstract
We previously observed that silencing COX-2 significantly reduced the expression of degradative enzymes such as matrix metalloproteinase 1 (MMP1), and altered the expression of ECM components such as hyaluronan and lumican that play a role in intra-fibrillar collagen spacing [1]. We have also observed that primary human breast cancers that have metastasized have higher collagen 1 (Col1) fiber density and volume [2]. Here, for the first time, we have investigated Col1 fiber patterns in metastatic lung nodules established by metastatic MDA-MB-231 breast cancer cells and their subclone Clone 13 cells that express shRNA to significantly reduce, but not silence, COX-2 expression.
Second harmonic generation (SHG) microscopy studies were performed on H&E stained lung sections obtained from SCID mice five weeks post intravenous injection of MDA-MB-231 (five mice) and Clone 13 (three mice) human breast cancer cells. SHG images of 5-7 fields of view per mouse were acquired from the lung sections on an Olympus FV1000MPE multiphoton microscope, and analyzed for inter-fiber distance and percentage of fiber per metastatic area using in-house software [2]. Reducing COX-2 expression resulted in a significant reduction of metastatic lung burden in mice. Analysis of the Col1 fiber structures of similar sized metastatic nodules revealed significantly fewer fibers and larger inter fiber distance in lung nodules of mice injected with Clone 13 cells compared to parental MDA-MB-231 cells.
Reducing COX-2 resulted in the establishment of significantly fewer metastatic lung nodules with significantly sparser Col1 fibers. These data suggest that the ability to lay down Col1 fibers is a key requirement for the successful establishment of metastatic lesions. Reducing COX-2 expression in MDA-MB-231 breast cancer cells affects the ability of these cancer cells to lay down a Col1 fiber scaffold suitable for cancer cell growth in the lungs. These data identify new aspects of the role of Col1 fibers and COX-2 in the establishment of metastatic lesions.
References: [1] I. Stasinopoulos et al., Neoplasia (2008); [2] S. Kakkad et al., J Biomed Opt (2012).
This work was supported by NIH R01CA82337 and P50CA103175.
Citation Format: Desmond Jacob, Samata M. Kakkad, Balaji Krishnamachary, Ioannis Stasinopoulos, Meiyappan Solaiyappan, Flonne Wildes, Kristine Glunde, Zaver M. Bhujwalla. Collagen 1 fibers are a key component in the establishment of distant pulmonary metastasis by breast cancer cells. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 4890. doi:10.1158/1538-7445.AM2014-4890
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Mitchell A, Jacob D, Andreou K, Raben A, Chen H, Koprowski C, Mourtada F. SU-D-19A-07: Dosimetric Comparison of HDR Plesiotherapy and Electron Beam Therapy for Superficial Lesions. Med Phys 2014. [DOI: 10.1118/1.4887870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Lambert A, Jacob D, Hansen S. Intracranial hypotension. Diagn Interv Imaging 2014; 95:347-50. [PMID: 24388603 DOI: 10.1016/j.diii.2013.10.014] [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: 10/25/2022]
Affiliation(s)
- A Lambert
- Service de radiologie, clinique de Fontaine, 1, rue des Créots, 21121 Fontaine-Lès-Dijon, France.
| | - D Jacob
- Service de radiologie, clinique de Fontaine, 1, rue des Créots, 21121 Fontaine-Lès-Dijon, France
| | - S Hansen
- Chirurgie du rachis, clinique de Fontaine, 1, rue des Créots, 21121 Fontaine-Lès-Dijon, France
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Lambert A, Jacob D, Hansen S. Spinal MRI after sacco-radiculography. Diagn Interv Imaging 2014; 95:345-6. [PMID: 24388601 DOI: 10.1016/j.diii.2013.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- A Lambert
- Service de radiologie, clinique de Fontaine, 1, rue des Créots, 21121 Fontaine-Lès-Dijon, France.
| | - D Jacob
- Service de radiologie, clinique de Fontaine, 1, rue des Créots, 21121 Fontaine-Lès-Dijon, France
| | - S Hansen
- Chirurgie du rachis, clinique de Fontaine, 1, rue des Créots, 21121 Fontaine-Lès-Dijon, France
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Dimri AP, Yasunari T, Wiltshire A, Kumar P, Mathison C, Ridley J, Jacob D. Application of regional climate models to the Indian winter monsoon over the western Himalayas. Sci Total Environ 2013; 468-469 Suppl:S36-S47. [PMID: 23411117 DOI: 10.1016/j.scitotenv.2013.01.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 12/25/2012] [Accepted: 01/11/2013] [Indexed: 06/01/2023]
Abstract
The Himalayan region is characterized by pronounced topographic heterogeneity and land use variability from west to east, with a large variation in regional climate patterns. Over the western part of the region, almost one-third of the annual precipitation is received in winter during cyclonic storms embedded in westerlies, known locally as the western disturbance. In the present paper, the regional winter climate over the western Himalayas is analyzed from simulations produced by two regional climate models (RCMs) forced with large-scale fields from ERA-Interim. The analysis was conducted by the composition of contrasting (wet and dry) winter precipitation years. The findings showed that RCMs could simulate the regional climate of the western Himalayas and represent the atmospheric circulation during extreme precipitation years in accordance with observations. The results suggest the important role of topography in moisture fluxes, transport and vertical flows. Dynamical downscaling with RCMs represented regional climates at the mountain or even event scale. However, uncertainties of precipitation scale and liquid-solid precipitation ratios within RCMs are still large for the purposes of hydrological and glaciological studies.
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Affiliation(s)
- A P Dimri
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India.
| | - T Yasunari
- Hydrospheric Atmospheric Research Center, Nagoya University, Nagoya, Japan
| | - A Wiltshire
- Met Office Hadley Centre, Fitzroy Road, Exeter, Devon, EX1 3PB, UK
| | - P Kumar
- Max Planck Institute for Meteorology, Hamburg, Germany
| | - C Mathison
- Met Office Hadley Centre, Fitzroy Road, Exeter, Devon, EX1 3PB, UK
| | - J Ridley
- Met Office Hadley Centre, Fitzroy Road, Exeter, Devon, EX1 3PB, UK
| | - D Jacob
- Max Planck Institute for Meteorology, Hamburg, Germany
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Fazel A, Fargeaudou Y, Le Dref O, Pelage J, Barranger E, Jacob D, Soyer P. Long Term Follow Up after Combined Embolization and Selective Minimally Invasive Myomectomy after MRI (CESAM). J Minim Invasive Gynecol 2013. [DOI: 10.1016/j.jmig.2013.08.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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