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Rypdal K, Melleby AO, Robinson EL, Palmero S, Seifert D, Martin D, Andreassen K, Dahl CP, Sjaastad I, Toennessen T, Stokke M, Heymans S, Christensen G, Apte S, Lunde IG. Deletion of the extracellular matrix glycoprotein ADAMTSL3 increases pro-fibrotic signalling and exacerbates heart failure in mice. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background/Introduction
Cardiac fibrosis is a central pathophysiological process accompanying most cardiac diseases including heart failure, and is a predictor of poor outcomes. The fibrotic process is mediated by activated cardiac fibroblasts (CFBs), so-called myofibroblasts, which produce excessive amounts of type I collagen and other ECM molecules. The ADAMTSL family of glycoproteins is upregulated in the cardiac extracellular matrix (ECM) during heart failure, but their function in the heart is unknown. Some ADAMTSL proteins are suggested to regulate the TGFβ, a major driver of myofibroblast activation and cardiac fibrosis.
Purpose
The purpose of this study was to examine the role of ADAMTSL3 in TGFβ-regulation and heart failure.
Methods
ADAMTSL3 expression was analysed in failing hearts of patients and mice. To study the functional role of ADAMTSL3 in the failing heart, an Adamtsl3 knock-out (L3-KO) mouse was generated, and WT and L3-KO littermates were subjected to experimental heart failure by aortic banding (AB), or sham surgery, for a total of six weeks. The mice were followed with echocardiography and MRI, and the left ventricles (LVs) were harvested one and six weeks after AB or sham surgery, with molecular analyses performed. To elucidate molecular functions of ADAMTSL3 in vitro, we overexpressed ADAMTSL3 in CFBs producing an extensive ECM.
Results
We determined that ADAMTSL3 was produced by CFBs and upregulated in failing hearts of patients and mice. The L3-KO mice had a normal cardiac phenotype at baseline, but upon increased LV afterload developed a dilated cardiomyopathy phenotype with increased LV dilation and reduced systolic function from one week post-AB. Furthermore, high mortality was observed in the L3-KO mice post-AB, with 60% vs. 96% survival of WTs over six weeks. At one week post-AB RNA sequencing of LVs revealed 233 differentially expressed genes in L3-KO vs. WT, with Col1a1 and Postn among the most upregulated, suggesting increased fibrosis and TGFβ signalling. Increased canonical TGFβ signalling was confirmed by increased SMAD2/3 phosphorylation and increased Lox expression in L3-KOs six weeks post-AB. In vitro, ADAMTSL3 overexpression in cultured CFBs resulted in reduced collagen synthesis and reduced expression of COL1A1, LOX, CTGF and POSTN, indicating anti-fibrotic properties. Furthermore, ADAMTSL3 inhibited the expression of ACTA2 and SPP1, reduced α-SMA protein by 25%, and reduced proliferation and CFB contraction, suggesting attenuated TGFβ signalling and inhibited myofibroblast differentiation.
Conclusions
ADAMTSL3 was upregulated in human and mouse heart failure, and served an anti-fibrotic and cardio-protective role in failing mouse hearts. Mechanistically, ADAMTSL3 was produced by CFBs and inhibited myofibroblast differentiation and collagen synthesis through TGFβ in cultured CFBs.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): The Research Council of Norway
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Affiliation(s)
- K Rypdal
- Institute for Experimental Medical Research , Oslo , Norway
| | - A O Melleby
- Institute for Experimental Medical Research , Oslo , Norway
| | - E L Robinson
- Cardiovascular Research Institute Maastricht (CARIM) , Maastricht , The Netherlands
| | - S Palmero
- Institute for Experimental Medical Research , Oslo , Norway
| | - D Seifert
- Cleveland Clinic, Lerner Research Institute , Cleveland , United States of America
| | - D Martin
- Cleveland Clinic, Lerner Research Institute , Cleveland , United States of America
| | - K Andreassen
- Institute for Experimental Medical Research , Oslo , Norway
| | - C P Dahl
- Oslo University Hospital, Department of Cardiology , Oslo , Norway
| | - I Sjaastad
- Institute for Experimental Medical Research , Oslo , Norway
| | - T Toennessen
- Institute for Experimental Medical Research , Oslo , Norway
| | - M Stokke
- Institute for Experimental Medical Research , Oslo , Norway
| | - S Heymans
- Cardiovascular Research Institute Maastricht (CARIM) , Maastricht , The Netherlands
| | - G Christensen
- Institute for Experimental Medical Research , Oslo , Norway
| | - S Apte
- Cleveland Clinic, Lerner Research Institute , Cleveland , United States of America
| | - I G Lunde
- Institute for Experimental Medical Research , Oslo , Norway
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Badarinarayana V, Brait M, Terzo E, Lima D, Ugurlu M, Apte S, Padhye S, Rashed S, Austin W, Wang C, Caponegro M, Clark R, Sidransky D, Modur V. A novel class of Ribosome Modulating Agents (RMAs) target MYC driven SCLC and synergize with DNA intercalating agents. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01002-4] [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: 11/03/2022]
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Badarinarayana V, Terzo E, Apte S, Padhye S, Rashed S, Austin W, Caponegro M, Reddy A, Wang C, Clark R, Sidransky D, Modur V. A novel class of Ribosome Modulating Agents (RMAs) targets ribosome heterogeneity in a subset of colorectal cancers. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00997-2] [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: 11/15/2022]
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4
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Plooij M, Apte S, Keller U, Baines P, Sterke B, Asboth L, Courtine G, von Zitzewitz J, Vallery H. Neglected physical human-robot interaction may explain variable outcomes in gait neurorehabilitation research. Sci Robot 2021; 6:eabf1888. [PMID: 34550719 DOI: 10.1126/scirobotics.abf1888] [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: 11/02/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- M Plooij
- Department of Biomechanical Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, Netherlands.,Demcon Advanced Mechatronics, Delfttechpark 23, Delft, Netherlands.,Motek, a DIH brand, Hogehilweg 18-C, 1101 CD Amsterdam, Netherlands
| | - S Apte
- Department of Biomechanical Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, Netherlands.,Laboratory of Movement Analysis and Measurement, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - U Keller
- ONWARD, EPFL Innovation Park, Lausanne, Switzerland.,Center for Neuroprosthetics (CNP) Valais, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.,Swiss Children's Rehab, University Children's Hospital Zurich, Affoltern am Albis, Switzerland
| | - P Baines
- Department of Biomechanical Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, Netherlands
| | - B Sterke
- Motek, a DIH brand, Hogehilweg 18-C, 1101 CD Amsterdam, Netherlands.,Department of Rehabilitation Medicine, Erasmus MC, Postbus 2040, 3000 CA Rotterdam, Netherlands
| | - L Asboth
- Center for Neuroprosthetics and Brain Mind Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.,Department of Clinical Neuroscience, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland.,Defitech Center for Interventional Neurotherapies (NeuroRestore), EPFL/CHUV/UNIL, Lausanne, Switzerland
| | - G Courtine
- ONWARD, EPFL Innovation Park, Lausanne, Switzerland.,Center for Neuroprosthetics and Brain Mind Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.,Department of Clinical Neuroscience, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland.,Defitech Center for Interventional Neurotherapies (NeuroRestore), EPFL/CHUV/UNIL, Lausanne, Switzerland
| | - J von Zitzewitz
- ONWARD, EPFL Innovation Park, Lausanne, Switzerland.,Center for Neuroprosthetics (CNP) Valais, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - H Vallery
- Department of Biomechanical Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, Netherlands.,Department of Rehabilitation Medicine, Erasmus MC, Postbus 2040, 3000 CA Rotterdam, Netherlands
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Hoffman MS, Xiong Y, Apte S, Roberts W, Wenham RM. Twenty-year surgical trends in a gynecologic oncology fellowship training program: Implications for practice. Gynecol Oncol 2019; 155:359-364. [PMID: 31575391 DOI: 10.1016/j.ygyno.2019.09.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 08/13/2019] [Revised: 09/06/2019] [Accepted: 09/10/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To assess whether there were any significant changes in surgical training volume over the past 20 years that might have ramifications toward preparedness for practice. METHODS We used deidentified annual summaries of fellow case numbers for the academic years 1999 through 2018. Unpaired t-tests with Welch's correction were performed on all surgical categories for 10-year and 5-year periods. RESULTS The total number of hysterectomies performed each year did not change significantly. The percent of hysterectomies performed by minimally invasive surgery increased significantly starting in 2008. There was a significant decline in the number of radical hysterectomies conducted starting after 2004, which then remained stable. There was also a significant decline in the number of bowel resections/anastomoses performed by fellows on the gynecologic oncology services that occurred and stabilized during the same time frame. There were other significant trends associated with the introduction of minimally invasive techniques. CONCLUSION The results of this study suggest the need to reevaluate fellowship training and/or the scope of surgical practice in gynecologic oncology.
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Affiliation(s)
- Mitchel S Hoffman
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA; The University of South Florida Morsani College of Medicine, Tampa, FL, USA.
| | - Yin Xiong
- Department of Biostatistics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Sachin Apte
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA; The University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - William Roberts
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA; The University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Robert M Wenham
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA; The University of South Florida Morsani College of Medicine, Tampa, FL, USA
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Qian Y, Von Eyben R, Liu Y, Chin F, Miao Z, Apte S, Carter J, Binkley M, Pollom E, Harris J, Prionas N, Kissel M, Simmons A, Diehn M, Shultz D, Brown M, Maxim P, Koong A, Graves E, Loo B. 18F-EF5 PET-based Imageable Hypoxia Predicts Local Recurrence in Tumors Treated with Highly Conformal Radiation Therapy. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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7
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Hoffman MS, Wenham R, Apte S, Chon HS, Shahzad M. Simulation of Thermal Bowel Injury During Robotic Surgery Utilizing the Porcine Model. J Gynecol Surg 2018. [DOI: 10.1089/gyn.2017.0054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Mitchel S. Hoffman
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center and University of South Florida Morsani College of Medicine and MCC-GYN Program, Tampa, FL
| | - Robert Wenham
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center and University of South Florida Morsani College of Medicine and MCC-GYN Program, Tampa, FL
| | - Sachin Apte
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center and University of South Florida Morsani College of Medicine and MCC-GYN Program, Tampa, FL
| | - Hye Sook Chon
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center and University of South Florida Morsani College of Medicine and MCC-GYN Program, Tampa, FL
| | - Mian Shahzad
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center and University of South Florida Morsani College of Medicine and MCC-GYN Program, Tampa, FL
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Ross C, Rangarajan S, Karimi M, Toogeh G, Apte S, Lissitchkov T, Acharya S, Manco-Johnson MJ, Srivastava A, Brand B, Schwartz BA, Knaub S, Peyvandi F. Pharmacokinetics, clot strength and safety of a new fibrinogen concentrate: randomized comparison with active control in congenital fibrinogen deficiency. J Thromb Haemost 2018; 16:253-261. [PMID: 29220876 DOI: 10.1111/jth.13923] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Indexed: 11/26/2022]
Abstract
Essentials Congenital afibrinogenemia causes a potentially life-threatening bleeding and clotting tendency. Two human fibrinogen concentrates (HFCs) were compared in a randomized pharmacokinetic study. Bioequivalence was not shown for AUCnorm , which was significantly larger for the new HFC. Increases in clot strength were comparable, and no thromboses or deaths occurred in the study. SUMMARY Background Human fibrinogen concentrate (HFC) corrects fibrinogen deficiency in congenital a-/hypofibrinogenemia. Objectives To assess pharmacokinetics (PK), effects on thromboelastometry maximum clot firmness (MCF), and safety of a new double virus-inactivated/eliminated, highly purified HFC vs. active control. Patients/Methods In this multinational, randomized, phase II, open-label, crossover study in 22 congenital afibrinogenemia patients aged ≥ 12 years, 70 mg kg-1 of new HFC (FIBRYGA, Octapharma AG) or control (Haemocomplettan® P/RiaSTAP™, CSL Behring GmbH) were administered, followed by crossover to the other concentrate. Fibrinogen activity, PK and MCF in plasma were assessed. Results The concentrates were not bioequivalent for the primary endpoint, AUCnorm (mean ratio, 1.196; 90% confidence interval [CI], 1.117, 1.281). Remaining PK parameters (Cmaxnorm , IVR, t1/2 , MRT) reflected bioequivalence between concentrates, except for clearance (mean ratio, 0.836; 90% CI, 0.781, 0.895) and Vss (mean ratio, 0.886; 90% CI, 0.791, 0.994). Mean AUCnorm was significantly larger for the new HFC (1.62 ± 0.45 vs. 1.38 ± 0.47 h kg g L-1 mg-1 , P = 0.0001) and mean clearance was significantly slower (0.665 ± 0.197 vs. 0.804 ± 0.255 mL h-1 kg-1 , P = 0.0002). Mean MCF increased from 0 mm to 9.68 mm (new HFC) and 10.00 mm (control) 1-hour post-infusion (mean difference, -0.32 mm; 95% CI, -1.70, 1.07, n.s.). No deaths, thromboses, viral seroconversions or serious related adverse events occurred. Conclusions Bioequivalence was not demonstrated for AUCnorm , clearance and Vss . Larger AUCnorm and slower clearance were observed for the new HFC. Remaining pharmacokinetic parameters reflected bioequivalence to control. Safety profiles and increases in clot strength were comparable between concentrates.
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Affiliation(s)
- C Ross
- Department of Hematology, St John's Medical College and Hospital, Bangalore, India
| | - S Rangarajan
- Centre For Haemostasis and Thrombosis, St Thomas' Hospital, London, UK
| | - M Karimi
- Hematology Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - G Toogeh
- Thrombosis Hemostasis Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - S Apte
- Sahyadri Speciality Hospital, Pune, Maharashtra, India
| | - T Lissitchkov
- Department of Hemorrhagic Diathesis and Anemia, Specialized Hospital for Active Treatment (SHAT) 'Joan Pavel', Sofia, Bulgaria
| | - S Acharya
- Cohen Children's Medical Center of New York, Northwell Health, New Hyde Park, NY, USA
| | - M J Manco-Johnson
- Hemophilia and Thrombosis Center, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - A Srivastava
- Department of Haematology, Christian Medical College, Vellore, India
| | - B Brand
- Department of Haematology, University Hospital Zurich, Zurich, Switzerland
| | - B A Schwartz
- Clinical Research and Development, Octapharma, Hoboken, NJ, USA
| | - S Knaub
- Research and Development Department, Octapharma, Lachen, Switzerland
| | - F Peyvandi
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Centre, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico and Luigi Villa Foundation, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
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Lengfelder L, Brenner A, Bowers L, Apte S, Galván G, Kist K, deGraffenried L. Abstract P3-14-12: Phase 0 study evaluating COX2 inhibition on circulating PGE2 levels from obese subjects. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p3-14-12] [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
Introduction: Obesity is associated with poor breast cancer outcomes in postmenopausal women in response to aromatase inhibitor therapy. Our prior studies have shown an association between reduced recurrence rate and use of cyclooxygenase-2 (COX-2) inhibiting non-steroidal anti-inflammatory drugs (NSAIDs) in obese breast cancer patients. The mechanism proposed was a decrease in prostaglandin E2 (PGE2) and reduced activation of the aromatase promote locally in the breast.
Methods: Postmenopausal women of varying body habitus were recruited at the CTRC in San Antonio and underwent randomized assignment to 1 of 3 arms: ASA 81mg daily, 1500mg of docosahexaenoic acid (DHA) and 2500mg eicosapentaenoic acid (EPA) given daily, or combined ASA and DHA/EPA. Sera were collected prior to and following 28 days of exposure, and cytokines including prostaglandin E2 were assessed via enzyme-linked immunosorbant assay (ELISA). Conditioned media was generated by exposing macrophages to patient sera in order to see if the patient sera induced PGE2 concentration in vitro.
Results: Thirty of the planned 120 subjects have completed assessment. No toxicity has been noted. In 71% of the patients, serum PGE2 levels decreased, but only 60% demonstrated concurrent decrease in serum PGE2 levels as well as macrophage PGE2 production, while almost all (88%) of the patients whose serum did not demonstrate a decrease in PGE2 levels also demonstrated no decrease in induced levels.
Conclusion: NSAIDs appear to effectively decrease circulating levels of PGE2 in most obese women. However, one third of the subjects did not demonstrate concurrent suppression of induced PGE2 from macrophages. These data suggest that circulating levels of PGE2 may not be reflective of local tumor microenvironment levels, and other pro-inflammatory circulating factors may be responsible for regulating local inflammatory responses. Final analysis will be completed and presented at the SABCS meeting.
Citation Format: Lengfelder L, Brenner A, Bowers L, Apte S, Galván G, Kist K, deGraffenried L. Phase 0 study evaluating COX2 inhibition on circulating PGE2 levels from obese subjects. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P3-14-12.
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Affiliation(s)
- L Lengfelder
- The University of Texas at Austin, Austin, TX; UTHSCSA, San Antonio, TX
| | - A Brenner
- The University of Texas at Austin, Austin, TX; UTHSCSA, San Antonio, TX
| | - L Bowers
- The University of Texas at Austin, Austin, TX; UTHSCSA, San Antonio, TX
| | - S Apte
- The University of Texas at Austin, Austin, TX; UTHSCSA, San Antonio, TX
| | - G Galván
- The University of Texas at Austin, Austin, TX; UTHSCSA, San Antonio, TX
| | - K Kist
- The University of Texas at Austin, Austin, TX; UTHSCSA, San Antonio, TX
| | - L deGraffenried
- The University of Texas at Austin, Austin, TX; UTHSCSA, San Antonio, TX
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10
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Evans BJ, Phillips KM, Gonzalez BD, Apte S, Small BJ, Jacobsen PB, Jim HSL. Psychosocial resources and sleep disturbance before chemotherapy for gynecologic cancer. J Psychosoc Oncol 2016; 34:60-76. [PMID: 26771556 DOI: 10.1080/07347332.2015.1128507] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Personal psychosocial resources (e.g., positive affect, social support, perceived mastery, meaning in life) are associated with better sleep in noncancer populations, but there have been few studies in cancer patients. The present study examined psychosocial resources and sleep in gynecological cancer patients. Before chemotherapy, 72 participants completed self-report measures of sleep and psychosocial resources; 63 also completed actigraphic monitoring. Subjective sleep was associated with positive affect, social support, perceived mastery, and meaning in life; objective sleep was associated with social support. Future studies should examine whether interventions to enhance psychosocial resources result in improved sleep in this population.
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Chon HS, Judson PL, Apte S, Lee JH, Williams-Elson I, Wenham RM. Phase 1 study of combination carboplatin, paclitaxel, and ridaforolimus in patients with solid, endometrial, and ovarian cancers. J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.15_suppl.2614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Hye Sook Chon
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
| | - Patricia Lynn Judson
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Canter & Research Institute, Tampa, FL
| | - Sachin Apte
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
| | - Ji-Hyun Lee
- Biostatistics Department, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
| | | | - Robert Michael Wenham
- Department of Gynecologic Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
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Abdallah R, Zgheib NB, Ramirez-Diaz I, Apte S, Lancaster PJ, Wenham R, Roberts W, Lancaster J, Gonzalez Bosquet J. Predictive role of biology in the feasibility of optimal versus suboptimal cytoreduction in advanced serous ovarian cancer. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.077] [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: 10/26/2022]
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Marchion D, Ramirez-Diaz I, Bou Zgheib N, Xiong Y, Stickles X, Judson Lancaster P, Gonzalez Bosquet J, Wenham R, Apte S, Lancaster J. A novel cMET inhibitor, MK8033, potentiates the activity of carboplatin/paclitaxel in ovarian cancer cell lines. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.375] [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: 10/26/2022]
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14
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Bou Zgheib N, Marchion D, Ramirez I, Teefey P, Judson Lancaster P, Wenham R, Apte S, Lancaster J, Bosquet JG. Molecular determinants for lymph node metastasis in early-stage endometrial cancer. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.068] [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: 11/27/2022]
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Bou Zgheib N, Marchion D, Xiong Y, Al Sawah E, Ramirez-Diaz I, Judson Lancaster P, Gonzalez Bosquet J, Wenham R, Apte S, Lancaster J. Characterizing the activity of MK2206 in ovarian cancer and defining the molecular determinants of response. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.388] [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: 11/15/2022]
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Dalia S, Conley AP, Fisher K, Lee JH, Wenham RM, Apte S, Gonzalez RJ. Clinicopathologic predictors (CP) of survival in patients with endometrial stromal sarcomas (ESS) treated with multi-modality therapy. J Clin Oncol 2013. [DOI: 10.1200/jco.2013.31.15_suppl.10556] [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: 11/20/2022] Open
Abstract
10556 Background: ESS is a rare uterine neoplasm in which there is minimal data about CP prognostic markers. Our study aims to determine the association of CP variables on overall survival (OS). Methods: Patients at Moffitt Cancer Center between January 1, 1990 and April 30, 2012 with the diagnosis of ESS were identified using our institutional database. Vital status, demographics, and therapeutic information were recorded. Survival time was estimated using the Kaplan-Meier method, and Cox proportional hazard model was used to identify potential risk factors for the time to event data. A p value < 0.05 was significant. Results: 64 patients were identified. 11 were excluded for incomplete records or inaccurate pathology, and 53 patients were analyzed. Median OS was 214 months (95% Confidence Interval (CI) 60-338). Median follow up was 133 months (95% CI 84-182). Mean age was 53±14 years, 45 (85%) underwent oophorectomy at or prior to diagnosis, 12 (23%) were diagnosed with metastatic disease, 37 (70%) were low grade, 19 (36%) were FIGO stage III-IV. Mean BMI was 29±8 kg/m2, 23 (43%) received adjuvant therapy (adjT) of any type (hormonal, chemotherapy, or radiation) and 16 (30%) received hormonal therapy at any time (HRT). 27 (51%) patients had ER or PR testing and 19 (70%) were ER(+), 20 (74%) were PR (+). The sample size was too small for multi-variable analysis. The Table shows the results of select univariable analysis and OS. Conclusions: Age, initial tumor size, ER and PR status had the greatest impact on survival while BMI, FIGO stage, AdjT or HRT did not. The association between survival and ER or PR status was seen independent of if a patient received HRT. Multicenter collaborative efforts are needed in order to further study the effects of ER and PR status on survival in ESS. [Table: see text]
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Affiliation(s)
- Samir Dalia
- Sarcoma Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
| | - Anthony Paul Conley
- Department of Sarcoma Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Kate Fisher
- Biostatistics Department, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
| | - Ji-Hyun Lee
- Biostatistics Department, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
| | - Robert Michael Wenham
- Department of Women's Oncology, Program of Gynecologic Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
| | - Sachin Apte
- Department of Women's Oncology, Program of Gynecologic Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
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Stickles X, Marchion D, Bou Zgheib N, Xiong Y, Judson P, Hakam A, Gonzalez Bosquet J, Wenham R, Apte S, Lancaster J. The BAD apoptosis pathway is associated with carcinogenesis in a range of human tissue types. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.014] [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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18
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Wenham R, LaPolla J, Hui-Yi L, Apte S, Roberts W, Lancaster J, Bosquet JG, Theodore S, Havrilesky L, Alvarez-Secord A. Phase II Trial of docetaxel and bevacizumab in recurrent ovarian cancer within 12months of prior platinum-based chemotherapy. Gynecol Oncol 2011. [DOI: 10.1016/j.ygyno.2010.12.199] [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: 10/18/2022]
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19
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Stickles X, Bicaku E, Marchion D, Chen N, Xiong Y, Gonzalez Bosquet J, Wenham R, Apte S, Lancaster J. MicroRNA and messenger RNA pathways associated with ovarian cancer cell sensitivity to topotecan, gemcitabine and doxorubicin. Gynecol Oncol 2011. [DOI: 10.1016/j.ygyno.2010.12.123] [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: 10/18/2022]
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20
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Chon HS, Marchion DC, Xiong Y, Chen N, Bicaku E, Apte S, Wenham R, Lancaster JM. Abstract 1645: The phosphorylation status of BAD pathway influence to chemo-sensitivity. Cancer Res 2010. [DOI: 10.1158/1538-7445.am10-1645] [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
Objective: Patients with advanced or recurrent endometrial cancer have a poor prognosis in part due to lack of efficacy of currently available chemotherapies and incomplete understanding of the biology that underlies chemo-response. In the current study we used genomic expression data to identify molecular signaling pathways associated with endometrial cancer cell resistance to cisplatin, doxorubicin chemotherapy and further characterized the role of the BAD apoptosis pathway as a therapeutic target and determinant of chemo-response.
Methods: Eight endometrial cell lines were subject to genome-wide expression analysis using Affymetrix HG-U133Plus GeneChips and in parallel, ranked by relative sensitivity to cisplatin and doxorubicin using MTS cell proliferation assays. Gene array data from sensitive versus resistant cell lines was compared by student's t-test and Pearson's correlation to identify those genes associated with drug resistance and further evaluated by GeneGo Metacore software for representation of molecular signaling pathways. Furthermore, the role of the BAD pathway in chemo-resistance was evaluated by selective inhibition of BAD pathway members, PKA, PP2C, AKT1, AKT2 and AKT3 by siRNA or pharmacologic agents in the presence and absence of cisplatin. Cell death and growth arrest in the presence of cisplatin were evaluated by Western blot for PARP cleavage as well as nuclear condensation and fragmentation and MTS assays.
Results: Student's t-test and Pearson's correlation identified the expression of 325 and 1136 genes to be associated with cisplatin (p<0.01) and doxorubicin (p<0.01) resistance, respectively. Pathway analysis of genes associated with both cisplatin and doxorubicin resistance indicated significant representation of the BAD apoptosis pathway (p<0.002). Selective depletion of the phosphatase, PP2C by siRNA resulted in increased phosphorylation of BAD, serine 118 and increased resistance to cisplatin induced cell growth arrest and cell death. In contrast, depletion of the kinase, PKA resulted in decreased phosphorylation of BAD, serine 118 and increased cell death in the presence of cisplatin. In addition, depletion of AKT1 using siRNA as wells as treatment of cells with the AKT inhibitor, triciribine, increased cisplatin-induced growth arrest and cell death, whereas depletion of AKT2 or AKT3 did not affect cisplatin sensitivity.
Conclusions: The phosphorylation status BAD may influence endometrial cancer cell sensitivity to chemotherapy and represents a compelling target for future therapeutic development.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2010;70(8 Suppl):Abstract nr 1645.
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Affiliation(s)
- Hye Sook Chon
- 1H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | | | - Yin Xiong
- 1H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | - Ning Chen
- 1H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | - Elona Bicaku
- 1H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | - Sachin Apte
- 1H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | - Robert Wenham
- 1H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
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Kamath SG, Chen N, Xiong Y, Wenham R, Apte S, Humphrey M, Cragun J, Lancaster JM. Gedunin, a novel natural substance, inhibits ovarian cancer cell proliferation. Int J Gynecol Cancer 2010; 19:1564-9. [PMID: 19955938 DOI: 10.1111/igc.0b013e3181a83135] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The discovery of more active therapeutic compounds is essential if the outcome for patients with advanced-stage epithelial ovarian cancer is to be improved. Gedunin, an extract of the neem tree, has been used as a natural remedy for centuries in Asia. Recently, gedunin has been shown to have potential in vitro antineoplastic properties; however, its effect on ovarian cancer cells is unknown. We evaluated the in vitro effect of gedunin on SKOV3, OVCAR4, and OVCAR8 ovarian cancer cell lines proliferation, alone and in the presence of cisplatin. Furthermore, we analyzed in vitro gedunin sensitivity data, integrated with genome-wide expression data from 54 cancer cell lines in an effort to identify genes and molecular pathways that underlie the mechanism of gedunin action. In vitro treatment of ovarian cancer cell lines with gedunin alone produced up to an 80% decrease in cell proliferation (P < 0.01) and, combining gedunin with cisplatin, demonstrated up to a 47% (P < 0.01) decrease in cell proliferation compared with cisplatin treatment alone. Bioinformatic analysis of integrated gedunin sensitivity and gene expression data identified 52 genes to be associated with gedunin sensitivity. These genes are involved in molecular functions related to cell cycle control, carcinogenesis, lipid metabolism, and molecular transportation. We conclude that gedunin has in vitro activity against ovarian cancer cells and, further, may enhance the antiproliferative effect of cisplatin. The molecular determinants of in vitro gedunin response are complex and may include modulation of cell survival and apoptosis pathways.
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Affiliation(s)
- Siddharth G Kamath
- Division of Gynecologic Surgical Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
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22
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Nguyen D, Catanzaro J, Apte S, Palermo T, Hostoffer R, Tcheurekdjian H. Quality of Life is Maintained in Common Variable Immunodeficiency During Long-term Immunoglobulin Replacement Therapy. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.553] [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: 11/17/2022]
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23
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Apte S, Tcheurekdjian H, Eng C, Rodriguez-Santana J, Chapela RR, Watson H, Meade K, LeNoir M, Rodriguez-Cintron W, Avila P, Burchard EG. Childhood Persistent Asthma after In Utero Tobacco Exposure in Mexican, Puerto Rican, and African Americans. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.947] [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: 10/19/2022]
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Boren T, Xiong Y, Hakam A, Wenham R, Apte S, Chan G, Kamath SG, Chen DT, Dressman H, Lancaster JM. MicroRNAs and their target messenger RNAs associated with ovarian cancer response to chemotherapy. Gynecol Oncol 2009; 113:249-55. [DOI: 10.1016/j.ygyno.2009.01.014] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2008] [Revised: 12/28/2008] [Accepted: 01/13/2009] [Indexed: 12/16/2022]
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Boren T, Xiong Y, Hakam A, Wenham R, Apte S, Wei Z, Kamath S, Chen DT, Dressman H, Lancaster JM. MicroRNAs and their target messenger RNAs associated with endometrial carcinogenesis. Gynecol Oncol 2008; 110:206-15. [PMID: 18499237 DOI: 10.1016/j.ygyno.2008.03.023] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2008] [Revised: 03/17/2008] [Accepted: 03/19/2008] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Recent advances in gene expression technology have provided insights into global messenger RNA (mRNA) expression changes associated with endometrial cancer development. However, the post-transcriptional events that may also have phenotypic consequences remain to be completely delineated. MicroRNAs (miRNAs) are small non-coding RNA transcripts, that influence cell function via modulation of post-transcriptional activity of multiple target mRNA genes. Although recent reports suggest that miRNAs may influence human cancer development, their role in endometrial carcinogenesis remains to be described. METHODS We measured expression of 335 unique human miRNAs in 61 fresh-frozen endometrial specimens, including 37 endometrial cancers, 20 normal endometrium, and 4 complex atypical hyperplasia samples. In parallel, expression of 22,000 mRNA genes was analyzed using the Affymetrix Human U133A GeneChips in 29 of the endometrial samples, including 20 endometrial carcinomas and 9 normal endometrial samples. Differentially expressed mRNAs, miRNAs, and predicted miRNA-mRNA targets were integrated and evaluated for representation of relevant functional biologic pathways. RESULTS Thirteen miRNAs (p<0.02) and 90 mRNAs (FDR; 0%) were identified to be associated with endometrial cancer development. Twenty-six of the 90 (29%) differentially expressed mRNAs are Sangar-database predicted mRNA targets of the 13 miRNAs. Pathway analysis demonstrates significant involvement of these 26 mRNA genes in processes including cell death, growth, proliferation, and carcinogenesis. CONCLUSION We have identified miRNAs and mRNAs associated with endometrial cancer development. Further, our strategy of integrating miRNA/mRNA data may also aid in the identification of important biologic pathways and additional unique genes that have importance in endometrial pathogenesis.
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Affiliation(s)
- Todd Boren
- H. Lee Moffitt Cancer Center & Research Institute, Divisions of Gynecologic Surgical Oncology, Tampa, FL 33612, USA.
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Abstract
Tectonic movement at the boundary of the Indo-Australian and Pacific Plates during the Miocene and Pliocene is recognized as a driving force for invertebrate speciation in New Zealand. Two endemic freshwater crayfish (koura) species, Paranephrops planifrons White 1842 and Paranephrops zealandicus White 1842, represent good model taxa to test geological hypotheses because, due to their low dispersal capacity and life history, geographical restriction of populations may be caused by vicariant processes. Analysis of a mitochondrial DNA marker (cytochrome oxidase subunit I) reveals not two, but three major koura lineages. Contrary to expectation, the cryptic West Coast group appears to be more closely related to P. zealandicus than to P. planifrons and has diverged earlier than the final development (Late Pleistocene) of Cook Strait. Our date estimates suggest that koura lineage diversification probably coincided with early to mid-Alpine orogeny in the mid-Pliocene. Estimates of node ages and the phylogenies are inconsistent with both ancient Oligocene and recent postglacial Pleistocene range expansion, but suggest central to north colonization of North Island and west to east movement in South Island during mid- to late Pliocene. Crypsis and paraphyly of the West Coast group suggest that morphological characters presently used to classify koura species could be misleading.
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Affiliation(s)
- S Apte
- Department of Zoology, University of Otago, PO Box 56, Dunedin 9001, New Zealand.
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Olver S, Apte S, Baz A, Kienzle N. The duplicitous effects of interleukin 4 on tumour immunity: how can the same cytokine improve or impair control of tumour growth? ACTA ACUST UNITED AC 2007; 69:293-8. [PMID: 17389011 DOI: 10.1111/j.1399-0039.2007.00831.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Successful tumour immunity relies on innate and adaptive immune responses, with cytokines like interleukin 4 (IL-4) known to influence tumour clearance in both positive and negative ways. Here, we summarise some of the murine tumour models used over the past two decades to assess the impact of IL-4 on tumour immunity, with emphasis on the effects of IL-4 on the tumour-induced CD8 T-cell response. These data are compared with our own recent studies showing that IL-4 impairs CD8+ T-cell-mediated immunity against the mastocytoma cell line P815 expressing the immunogenic HLA-CW3 gene; moreover, we hypothesise that quantitative and qualitative differences in the HLA-CW3-induced CD8+ T-cell response impair control of tumour growth and aid the development of secondary tumours. We conclude that the duplicitous effects of IL-4 on tumour immunity depend on the type of effector cell (adaptive/innate) mediating tumour clearance and whether tumour growth depends on stromal infrastructure. Thus, the search for factors that improve or weaken the effectiveness of tumour-specific T cells has to be continued to improve modern approaches of immunotherapy against cancer.
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Affiliation(s)
- S Olver
- Infectious Diseases and Immunology Division, The Queensland Institute of Medical Research, Brisbane, Queensland 4029, Australia
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28
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Sayer RA, Apte S, Tedjarati SS. Regional cooling significantly reduces liposomal doxorubicin-induced palmar-plantar erythrodysesthesias (PPE) in patients with recurrent ovarian cancer. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.18507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
18507 Objective: To evaluate the effect of regional cooling on the incidence and severity of liposomal doxorubicin-induced PPE in patients with recurrent ovarian cancer. Methods: Following IRB-approval, a retrospective chart review identified all patients treated with liposomal doxorubicin for recurrent ovarian cancer from 7/00 through 7/05. It was then determined whether patients received a regional cooling protocol, which involved placing hands and feet in ice water during chemotherapy infusion. Information was collected including patient demographics, prior chemotherapy, and grade and severity of PPE. Results: 73 women were treated for recurrent ovarian cancer with liposomal doxorubicin over the 5-year period. The median age was 58 years (range 24 to 82). The number of cycles ranged from 2 to 27 (median of 5). Liposomal doxorubicin dosages were available for 69 patients. Of the 69 patients, 4 patients were treated at 30 mg/m2, 64 patients were treated at 40mg/m2, and 1 patient was treated at 50mg/m2. The number of prior chemotherapy regimens ranged from 1 to 6 (median of 2.4) and the total number of all prior cycles ranged from 6 to 57 (median of 10). 25 of 73 patients (34%) were treated using the regional cooling protocol, while 48 of 73 (66%) were not. All incidences of PPE occurred in patients treated at the 40mg/m2 dosing. The overall incidence of PPE in the regional cooling group was 24% compared to 54% in the non-regional cooling group (p = 0.0067). In the regional cooling group, 12% had grade 1 PPE, 8% had grade 2 PPE, 4% had grade 3, and none developed grade 4 PPE. Of the 48 patients without regional cooling, 19% had grade 1 PPE, 15% had grade 2 PPE, 15% had grade 3, and 2 of 4% had grade 4 PPE. Of the 25 patients receiving regional cooling, 1 patient (4%) required discontinuation of liposomal doxorubicin due to grade 3 PPE while 11 patients of the 48 patients who did not receive regional cooling (23%) required discontinuation due to PPE (p = 0.048). The incidence of PPE was not associated with age at diagnosis or total number of previous chemotherapy cycles. Conclusions: Regional cooling is effective in significantly reducing the incidence and severity of liposomal doxorubicin-induced PPE in patients with recurrent ovarian cancer. No significant financial relationships to disclose.
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Affiliation(s)
| | - S. Apte
- H. Lee Moffitt Cancer Center, Tampa, FL
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Apte S, Vadhan-Raj S, Cohen L, Yang Y, Levenback C, Ramirez PT, Iyer R, Gallardo S, Garcia M, Freedman RS. Hemapoietic, immunomodulatory, antitumor, and toxicity profiles of sequential GM-CSF and IFNγ1b biotherapy and carboplatin in recurrent ovarian carcinoma. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.5053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- S. Apte
- Univ of Texas M. D. Anderson Cancer Ctr, Houston, TX
| | - S. Vadhan-Raj
- Univ of Texas M. D. Anderson Cancer Ctr, Houston, TX
| | - L. Cohen
- Univ of Texas M. D. Anderson Cancer Ctr, Houston, TX
| | - Y. Yang
- Univ of Texas M. D. Anderson Cancer Ctr, Houston, TX
| | - C. Levenback
- Univ of Texas M. D. Anderson Cancer Ctr, Houston, TX
| | - P. T. Ramirez
- Univ of Texas M. D. Anderson Cancer Ctr, Houston, TX
| | - R. Iyer
- Univ of Texas M. D. Anderson Cancer Ctr, Houston, TX
| | - S. Gallardo
- Univ of Texas M. D. Anderson Cancer Ctr, Houston, TX
| | - M. Garcia
- Univ of Texas M. D. Anderson Cancer Ctr, Houston, TX
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Niederkorn JY, Alizadeh H, Leher H, Apte S, El Agha S, Ling L, Hurt M, Howard K, Cavanagh HD, McCulley JP. Role of tear anti-acanthamoeba IgA in Acanthamoeba keratitis. Adv Exp Med Biol 2003; 506:845-50. [PMID: 12614001 DOI: 10.1007/978-1-4615-0717-8_119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
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31
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Apte S, Gardner JPA. Population genetic subdivision in the New Zealand greenshell mussel (Perna canaliculus) inferred from single-strand conformation polymorphism analysis of mitochondrial DNA. Mol Ecol 2002; 11:1617-28. [PMID: 12207713 DOI: 10.1046/j.1365-294x.2002.01554.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Single-strand conformation polymorphism (SSCP) analysis of the NADH IV region of the mitochondrial DNA (mtDNA) molecule in greenshell mussels (Perna canaliculus) indicated strong population genetic structuring in this endemic New Zealand species. A northern and a southern group were differentiated by frequency shifts in common haplotypes and by the occurrence of a unique southern haplotype at approximately 20% frequency. This split occurred south of Cook Strait (the body of water between the North and the South Island) at approximately 42 degrees S latitude. Northern populations were less genetically diverse than southern populations and mussels from the west coast of the South Island were most distinct from northern mussels. We hypothesize that the unique haplotype VIII originated in the lower South Island, and that its spread northwards was obstructed by the opening of Cook Strait approximately 15 000-16 000 years ago and the subsequent establishment of present-day surface water circulation patterns in Greater Cook Strait. We suggest that present-day strong tidal flows and turbulent mixing of water masses in Cook Strait, and intense up-welling on the east and west coasts in this region, represent a barrier to gene flow between mussels located in the North Island and northern South Island vs. mussels in most of the South Island and Stewart Island.
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Affiliation(s)
- S Apte
- School of Biological Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
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32
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Tedjarati S, Baker CH, Apte S, Huang S, Wolf JK, Killion JJ, Fidler IJ. Synergistic therapy of human ovarian carcinoma implanted orthotopically in nude mice by optimal biological dose of pegylated interferon alpha combined with paclitaxel. Clin Cancer Res 2002; 8:2413-22. [PMID: 12114447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
The purpose of this study was to optimize the antitumor andantiangiogenic activities of pegylated IFN-alpha (PEG-IFN-alpha)alone or in combination with paclitaxel against SKOV3ip1 human ovarian cancer cells growing orthotopically in female nude mice. Seven days after the i.p. implantation of tumor cells, groups of mice (n = 10) were injected s.c. once per week (for 4 weeks) with different doses of PEG-IFN-alpha (3,500, 7,000, 35,000, and 350,000 units). PEG-IFN-alpha at 7,000 units significantly decreased tumor incidence and volume. At doses exceeding 7,000 units, PEG-IFN-alpha was less efficacious. In another set of studies conducted 7 days after the i.p. implantation of SKOV3ip1 cells, groups of mice (n = 10) received (once per week for 4 weeks) either s.c. administrations of PEG-IFN-alpha (7,000 units), i.p. injections of paclitaxel (100 microg/wk), or a combination of PEG-IFN-alpha and paclitaxel. The mice were killed 7 days after the last treatment, and tumor burden was assessed. Administration of PEG-IFN-alpha at the optimal biological dose (7,000 units) in combination with paclitaxel significantly decreased angiogenesis and progressive growth of human ovarian carcinoma cells in a synergistic fashion. The combination therapy produced the most significant inhibition in expression of the proangiogenic molecules basic fibroblast growth factor and matrix metalloproteinase-9. Decreased microvessel density, decreased proliferating cell nuclear antigen staining, and increased endothelial cell apoptosis also correlated with therapeutic success. Collectively, the data suggest that combining the optimal biological dose of PEG-IFN-alpha with paclitaxel may provide a novel and effective approach to the treatment of human ovarian carcinoma.
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Affiliation(s)
- Sean Tedjarati
- Departments of Cancer Biology and Gynecologic Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030, USA
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33
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Gong Y, Slee RB, Fukai N, Rawadi G, Roman-Roman S, Reginato AM, Wang H, Cundy T, Glorieux FH, Lev D, Zacharin M, Oexle K, Marcelino J, Suwairi W, Heeger S, Sabatakos G, Apte S, Adkins WN, Allgrove J, Arslan-Kirchner M, Batch JA, Beighton P, Black GC, Boles RG, Boon LM, Borrone C, Brunner HG, Carle GF, Dallapiccola B, De Paepe A, Floege B, Halfhide ML, Hall B, Hennekam RC, Hirose T, Jans A, Jüppner H, Kim CA, Keppler-Noreuil K, Kohlschuetter A, LaCombe D, Lambert M, Lemyre E, Letteboer T, Peltonen L, Ramesar RS, Romanengo M, Somer H, Steichen-Gersdorf E, Steinmann B, Sullivan B, Superti-Furga A, Swoboda W, van den Boogaard MJ, Van Hul W, Vikkula M, Votruba M, Zabel B, Garcia T, Baron R, Olsen BR, Warman ML. LDL receptor-related protein 5 (LRP5) affects bone accrual and eye development. Cell 2001; 107:513-23. [PMID: 11719191 DOI: 10.1016/s0092-8674(01)00571-2] [Citation(s) in RCA: 1548] [Impact Index Per Article: 67.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In humans, low peak bone mass is a significant risk factor for osteoporosis. We report that LRP5, encoding the low-density lipoprotein receptor-related protein 5, affects bone mass accrual during growth. Mutations in LRP5 cause the autosomal recessive disorder osteoporosis-pseudoglioma syndrome (OPPG). We find that OPPG carriers have reduced bone mass when compared to age- and gender-matched controls. We demonstrate LRP5 expression by osteoblasts in situ and show that LRP5 can transduce Wnt signaling in vitro via the canonical pathway. We further show that a mutant-secreted form of LRP5 can reduce bone thickness in mouse calvarial explant cultures. These data indicate that Wnt-mediated signaling via LRP5 affects bone accrual during growth and is important for the establishment of peak bone mass.
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MESH Headings
- Adaptor Proteins, Signal Transducing
- Adult
- Animals
- Animals, Outbred Strains
- Bone Density/genetics
- Bone Morphogenetic Protein 2
- Bone Morphogenetic Proteins/pharmacology
- COS Cells
- Child
- Child, Preschool
- Chlorocebus aethiops
- Chromosomes, Human, Pair 11/genetics
- Culture Media, Conditioned/pharmacology
- DNA, Complementary/genetics
- Dishevelled Proteins
- Eye/embryology
- Eye Abnormalities/genetics
- Female
- Genes, Recessive
- Heterozygote
- Humans
- LDL-Receptor Related Proteins
- Low Density Lipoprotein Receptor-Related Protein-5
- Male
- Mesoderm/cytology
- Mice
- Mice, Inbred C57BL
- Organ Culture Techniques
- Osteoblasts/metabolism
- Osteoporosis/genetics
- Phosphoproteins/genetics
- Phosphoproteins/physiology
- Proteins/genetics
- Proteins/physiology
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/physiology
- Receptors, LDL/deficiency
- Receptors, LDL/genetics
- Receptors, LDL/physiology
- Recombinant Fusion Proteins/physiology
- Recombinant Proteins
- Signal Transduction
- Skull/cytology
- Species Specificity
- Stromal Cells/cytology
- Stromal Cells/drug effects
- Syndrome
- Transfection
- Transforming Growth Factor beta
- Wnt Proteins
- Wnt-5a Protein
- Wnt2 Protein
- Wnt3 Protein
- Wnt4 Protein
- Zebrafish Proteins
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34
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Alizadeh H, Apte S, El-Agha MS, Li L, Hurt M, Howard K, Cavanagh HD, McCulley JP, Niederkorn JY. Tear IgA and serum IgG antibodies against Acanthamoeba in patients with Acanthamoeba keratitis. Cornea 2001; 20:622-7. [PMID: 11473164 DOI: 10.1097/00003226-200108000-00013] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
PURPOSE Exposure to Acanthamoebaspecies appears to be ubiquitous, as 50% to 100% of healthy human subjects display anti-Acanthamoebaantibodies. However, the presence of specific anti-Acanthamoebaantibodies in the serum and tears of patients has not been investigated. The prevalence of serum immunoglobulin G (IgG) and tear IgA against three species of Acanthamoebawas assessed in healthy subjects and patients with Acanthamoebakeratitis. METHODS The level of specific serum IgG and tear IgA against A. castellanii, A. astronyxis, and A. culbertsoniin the sera of 23 patients and 25 healthy subjects was tested by enzyme-linked immunosorbent assays. Total serum IgM, IgG, and IgA concentrations were measured by nephelometry. Acanthamoebakeratitis was diagnosed clinically and confirmed by in vivo confocal microscopy. In some patients, corneal biopsies were also performed and trophozoites were cultured on lawns of Escherichia colion non-nutrient agar. RESULTS All healthy subjects and patients with Acanthamoebakeratitis had detectable serum IgG antibodies against all Acanthamoebaantigens. However, patients with Acanthamoebakeratitis had significantly higher anti-AcanthamoebaIgG antibody titers than healthy subjects. In contrast, Acanthamoeba-specific tear IgA was significantly lower in patients with Acanthamoebakeratitis in comparison with healthy subjects. Total serum immunoglobulins did not differ significantly between healthy subjects and patients with Acanthamoebakeratitis. CONCLUSIONS The results suggest that a low level of anti-AcanthamoebaIgA antibody in the tears appears to be associated with Acanthamoebakeratitis.
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Affiliation(s)
- H Alizadeh
- Department of Ophthalmology, The University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390, USA.
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Hurt M, Apte S, Leher H, Howard K, Niederkorn J, Alizadeh H. Exacerbation of Acanthamoeba keratitis in animals treated with anti-macrophage inflammatory protein 2 or antineutrophil antibodies. Infect Immun 2001; 69:2988-95. [PMID: 11292716 PMCID: PMC98252 DOI: 10.1128/iai.69.5.2988-2995.2001] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Neutrophils are thought to be involved in many infectious diseases and have been found in high numbers in the corneas of patients with Acanthamoeba keratitis. Using a Chinese hamster model of keratitis, conjunctival neutrophil migration was manipulated to determine the importance of neutrophils in this disease. Inhibition of neutrophil recruitment was achieved by subconjunctival injection with an antibody against macrophage inflammatory protein 2 (MIP-2), a powerful chemotactic factor for neutrophils which is secreted by the cornea. In other experiments, neutrophils were depleted by intraperitoneal injection of anti-Chinese hamster neutrophil antibody. The inhibition of neutrophils to the cornea resulted in an earlier onset and more severe infection compared to controls. Anti-MIP-2 antibody treatment produced an almost 35% reduction of myeloperoxidase activity in the cornea 6 days postinfection, while levels of endogenous MIP-2 secretion increased significantly. Recruitment of neutrophils into the cornea via intrastromal injections of recombinant MIP-2 generated an initially intense inflammation that resulted in the rapid resolution of the corneal infection. The profound exacerbation of Acanthamoeba keratitis seen when neutrophil migration was inhibited, combined with the rapid clearing of the disease in the presence of increased neutrophils, strongly suggests that neutrophils play an important role in combating Acanthamoeba infections in the cornea.
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Affiliation(s)
- M Hurt
- Department of Ophthalmology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390, USA
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Apte S, Gardner JP. Absence of population genetic differentiation in the New Zealand greenshell mussel Perna canaliculus (Gmelin 1791) as assessed by allozyme variation. J Exp Mar Biol Ecol 2001; 258:173-194. [PMID: 11278009 DOI: 10.1016/s0022-0981(01)00218-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Genetic variation in the endemic New Zealand greenshell mussel, Perna canaliculus (Gmelin 1791), was examined using starch-gel electrophoresis at seven protein-coding loci (Idh; Acon-1; Acon-2; Gpd; Pgi; Pgm; Pgd) in 35 populations (N=1038 mussels). For all loci and all populations, Fisher's exact tests indicated highly significant departures from Hardy-Weinberg equilibrium (HWE), but this overall result was caused by significant heterozygote deficiencies at only two loci (Pgm and Pgd), and in only three northern populations (Kuaotunu, Te Haumi and Days Bay). Allelic and genotypic differentiation between population pairs at individual loci and across all loci were nonsignificant, and genotypic disequilibrium at each locus pair was also nonsignificant for all populations. Genetic variation in all populations was high (mean heterozygosity, 0.210+/-0.113), while Nei's D among populations was very low (0.002+/-0.002). Low population subdivision (θ=-0.001+/-0.002) and high levels of gene flow (Nm(p)=10.18; Nm(θ)=infinity) also indicated that the single panmictic unit model best explains population genetic homogeneity in P. canaliculus over a north-south distance >2000 km. Lack of genetic subdivision in this species is discussed in light of two previous allozyme studies, with differing results: one suggested that a north-south division exists between greenshell mussel stocks, and the other suggested that population structure in this species can be explained through isolation by distance model modified by local hydrology.
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Affiliation(s)
- S Apte
- School of Biological Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
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Affiliation(s)
- S Apte
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand.
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Repp AC, Mayhew ES, Apte S, Niederkorn JY. Human uveal melanoma cells produce macrophage migration-inhibitory factor to prevent lysis by NK cells. J Immunol 2000; 165:710-5. [PMID: 10878343 DOI: 10.4049/jimmunol.165.2.710] [Citation(s) in RCA: 94] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Human uveal melanoma arises in an immune privileged ocular environment in which both adaptive and innate immune effector mechanisms are suppressed. Uveal melanoma is the most common intraocular tumor in adults and is derived from tissues in the eye that produce macrophage migration-inhibitory factor (MIF), a cytokine that has recently been demonstrated to produce immediate inhibition of NK cell-mediated lytic activity. Although NK cell-mediated lysis of uveal melanomas is inhibited in the eye, melanoma cells that disseminate from the eye are at risk for surveillance by NK cells. Moreover, uveal melanoma cells demonstrate a propensity to metastasize to the liver, an organ with one of the highest levels of NK activity in the body. Therefore, we speculated that uveal melanomas produced MIF as a means of escaping NK cell-mediated lysis. Accordingly, seven primary uveal melanoma cell lines and two cell lines derived from uveal melanoma metastases were examined for their production of MIF. MIF was detected in melanoma culture supernatants by both ELISA and the classical bioassay of macrophage migration inhibition. Melanoma-derived MIF inhibited NK cell-mediated lysis of YAC-1 and uveal melanoma cells. Cell lines derived from uveal melanoma metastases produced approximately twice as much biologically active MIF as cultures from primary uveal melanomas. Inhibition of NK cell-mediated killing by uveal melanoma-derived MIF was specifically inhibited in a dose-dependent manner by anti-MIF Ab. The results suggest that human uveal melanoma cells maintain a microenvironment of immune privilege by secreting active MIF that protects against NK cell-mediated killing.
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Affiliation(s)
- A C Repp
- Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA
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Bumgardner GL, Li J, Apte S, Heininger M, Frankel WL. Effect of tumor necrosis factor alpha and intercellular adhesion molecule-1 expression on immunogenicity of murine liver cells in mice. Hepatology 1998; 28:466-74. [PMID: 9696013 DOI: 10.1002/hep.510280226] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Adhesion molecules such as intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) have been implicated in the pathogenesis of various inflammatory liver disease states, including viral and autoimmune hepatitis as well as liver allograft rejection. Tumor necrosis factor alpha (TNF-alpha) is an inflammatory cytokine known to up-regulate adhesion molecules as well as major histocompatibility complex (MHC) class I expression, and has been demonstrated to be important in the rejection of vascularized organ allografts. The current studies address the effect of TNF-alpha and the role of ICAM-1 expression on liver cell immunogenicity in vitro in mixed lymphocyte hepatocyte culture (MLHC), in vitro in mixed lymphocyte liver nonparenchymal cell culture (MLNPC), in vivo in hepatocyte sponge matrix allografts (HC-SMA), and in vivo in liver nonparenchymal cell sponge matrix allografts (NPC-SMA). Purified allogeneic hepatocytes (HC) and liver nonparenchymal cells (NPC) under naive, unstimulated conditions demonstrated different profiles of MHC antigen and adhesion molecule expression, but both liver cell populations stimulated the proliferation and development of allospecific cytotoxic effectors in vitro and in vivo. Despite significant up-regulation of MHC class I and ICAM-1 on both HC and liver NPCs by in vivo treatment with TNF-alpha, the immunogenicity of TNF-alpha-stimulated liver cells was not appreciably different from naive, unstimulated liver cells. In contrast, ICAM-1-negative HC and NPCs were significantly less immunogenic both in terms of lymphocyte proliferative responses and the generation of allospecific cytolytic effectors. These results suggest that constitutive expression of ICAM-1 enhances the immunogenicity of "donor" liver cells but is not absolutely required to elicit immune responses to allogeneic liver cells. Further studies to determine the role of adhesion molecule expression on trafficking of host immune cells to the liver and the role of adhesion molecule expression by host cells are required to clarify their role in immune responses to liver cells.
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Affiliation(s)
- G L Bumgardner
- Department of Surgery, The Ohio State University, Columbus, USA
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Pendás AM, Knäuper V, Puente XS, Llano E, Mattei MG, Apte S, Murphy G, López-Otín C. Identification and characterization of a novel human matrix metalloproteinase with unique structural characteristics, chromosomal location, and tissue distribution. J Biol Chem 1997; 272:4281-6. [PMID: 9020145 DOI: 10.1074/jbc.272.7.4281] [Citation(s) in RCA: 172] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
We have cloned a novel member of the matrix metalloproteinase (MMP) family of proteins from a human liver cDNA library. The isolated cDNA contains an open reading frame coding for a polypeptide of 508 amino acids, which has been tentatively called MMP-19. This protein exhibits the domain structure characteristic of previously described MMPs, including a signal sequence, a prodomain with the cysteine residue essential for maintaining the latency of these enzymes, an activation locus with the zinc-binding site, and a COOH-terminal fragment with sequence similarity to hemopexin. However, it lacks a series of structural features distinctive of the diverse MMP subclasses, including the Asp, Tyr, and Gly residues located close to the zinc-binding site in collagenases, the fibronectin-like domain of gelatinases, the transmembrane domain of membrane-type (MT) MMPs, and the furin-activation sequence common to stromelysin-3 and MT-MMPs. In addition, the 9-residue insertion rich in hydrophobic amino acids present at the hinge region in stromelysins is replaced in MMP-19 by a longer insertion very rich in acidic residues. On the basis of these structural characteristics, we propose that MMP-19 does not belong to any of the previously defined MMP-subclasses and may represent the first member of a new MMP subfamily. Chromosomal location of the MMP-19 gene revealed that it maps to chromosome 12q14, which is also a unique location for any MMPs mapped to date. The cDNA encoding a full-length MMP-19 was expressed in Escherichia coli, and after purification and refolding, the recombinant protein was able to degrade synthetic substrates for MMPs. MMP-19 proteolytic activity was abolished by TIMP-2 and EDTA, thus providing additional evidence that the isolated cDNA codes for an authentic MMP. Northern blot analysis of polyadenylated RNAs isolated from a variety of human tissues revealed that MMP-19 is mainly expressed in placenta, lung, pancreas, ovary, spleen, and intestine, suggesting that it may play a specialized role in these tissues.
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Affiliation(s)
- A M Pendás
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad de Oviedo, 33006-Oviedo, Spain
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Bhushan V, Chandy M, Khanduri U, Dennison D, Srivastava A, Apte S. Surgery in patients with congenital coagulation disorders. Natl Med J India 1994; 7:8-12. [PMID: 8156041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND Surgery is occasionally necessary in patients with congenital coagulation disorders. Major surgery for patients with haemophilia was not being done in India until recently. This paper reports the experience of a single referral centre. METHODS The data of 52 patients who were operated upon were collected from the hospital records retrospectively between 1984 and 1986 and prospectively thereafter. They included the surgical procedure performed, replacement therapy used and complications encountered. RESULTS Fifty-nine procedures were performed of which 26 were major, 30 minor and 3 were diagnostic angiograms. Blood components produced in the hospital blood bank were commonly used for replacement and primary haemostasis was achieved in all patients. Delayed bleeding due to inadequate factor levels occurred in 12 procedures and was controlled by increasing the factor replacement. One patient died of suspected acute myocardial ischaemia. CONCLUSION In India surgical procedures can be safely performed in patients with congenital coagulation disorders.
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Affiliation(s)
- V Bhushan
- Christian Medical College, Vellore, Tamil Nadu, India
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Whitelaw NL, Apte S, Farra KE, Obiekwe M, Walsh M, Savage WD. Torsion of the fallopian tube following laparoscopic sterilisations. J OBSTET GYNAECOL 1994. [DOI: 10.3109/01443619409025978] [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: 11/13/2022]
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Abstract
A total of 6 pregnant women with obstructing urinary calculi was managed by percutaneous nephrostomy drainage placed under ultrasound guidance with the patient under local anesthesia. All patients initially had relief of acute obstruction. However, occlusion of the percutaneous nephrostomy tubes with debris necessitated tube changes in 5 of 6 patients. In 2 patients recurrent nephrostomy tube obstruction, fever and pain led to percutaneous stone removal during pregnancy. In the remaining 4 patients the nephrostomy tubes were left indwelling through delivery. During the postpartum period 3 patients successfully underwent ureteroscopic stone extraction and 1 passed the stone spontaneously. Bacteriuria developed in each patient despite the use of preventive antibiotics. All 6 women had uncomplicated vaginal deliveries of healthy newborns and are currently asymptomatic with no evidence of obstruction. Percutaneous drainage of an acutely obstructed kidney in a pregnant woman is an effective temporizing alternative to ureteral stent placement until definitive treatment can be performed.
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Affiliation(s)
- L R Kavoussi
- Division of Urologic Surgery, Washington University School of Medicine, St. Louis, Missouri
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Santiago O, Diethrich EB, Bahadir I, Apte S, Bayazid S, Caruso J, Dorsey R, Waters D. A double balloon occlusion technique for embolectomy in the trifurcation vessels. Surg Gynecol Obstet 1992; 174:164. [PMID: 1734580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- O Santiago
- Department of Cardiovascular Surgery, Arizona Heart Institute, Phoenix 85064
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Apte S, Turco S. The influence of manufacturing parameters on the formation and growth on autoclaving of a 40% V/V Bis-Perfluorobutylethene emulsion. J Parenter Sci Technol 1992; 46:12-5. [PMID: 1625102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The influence of different process variables on the number of large particles before and after autoclaving of a 40% V/V Bis-Perfluorobutylethene emulsion stabilized by egg yolk lecithin, made isotonic with blood, was examined. The concentration of emulsifier, emulsification and autoclaving time and temperature, fill volume and the cooling gradient applied to the emulsion after autoclaving all affect the number of large droplets and hence the stability and acceptability of the finished product. This work suggests that validation of equipment and process to very exacting specifications and strict adherence to specified manufacturing protocol is essential for the reproducible production of fluorocarbon emulsions acceptable for intravenous administration.
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Affiliation(s)
- S Apte
- Division of Pharmaceutics, School of Pharmacy, Temple University, Philadelphia, PA
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Abstract
With consensus primers based upon the nucleotide sequence of the chicken alpha 1(X) collagen gene, we have used PCR with human genomic DNA as template to isolate a 289 bp fragment coding for part of the carboxyl non-triple helical domain of the human alpha 1(X) gene. We have demonstrated the presence of the sequence of the PCR clone within the human genome by partial sequence analysis of a 1 kb HindIII genomic DNA fragment that hybridized with the PCR clone. Furthermore, using the PCR clone as a probe for in situ hybridization of human metaphase chromosome spreads, and for Southern analysis of a panel of human-hamster somatic cell hybrid DNAs, we have assigned the locus for the alpha 1(X) gene to the q21-q22 region of human chromosome 6.
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Affiliation(s)
- S Apte
- Department of Anatomy and Cellular Biology, Harvard Medical School, Boston, MA 02115
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Muragaki Y, Jacenko O, Apte S, Mattei MG, Ninomiya Y, Olsen BR. The alpha 2(VIII) collagen gene. A novel member of the short chain collagen family located on the human chromosome 1. J Biol Chem 1991; 266:7721-7. [PMID: 2019595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Type VIII collagen is a major component of Descemet's membrane, the specialized basement membrane of corneal endothelial cells. Sequence analysis of a cDNA isolated from a library made with mRNA from rabbit corneal endothelial cells has indicated that type VIII molecules contain a polypeptide chain, alpha 1(VIII), consisting of a short triple-helical domain of 454 amino acid residues flanked by non-triple-helical domains of 117 and 173 amino acid residues at the amino and carboxyl ends, respectively (Yamaguchi, N., Benya, P. D., van der Rest, M., and Ninomiya, Y. (1989) J. Biol. Chem. 264, 16022-16029). The sequence of alpha 1(VIII) is strikingly similar to that of alpha 1(X) collagen, a product of hypertrophic chondrocytes. Also, characterization of the alpha 1(VIII) and alpha 1(X) collagen genes has shown that they are quite similar in their exon organization. It has been concluded, therefore, that they are homologous members of a distinct subclass of collagen genes (Yamaguchi, N., Mayne, R., and Ninomiya, Y. (1991) J. Biol. Chem. 266, 4508-4513). We have given this subclass the name short chain collagens because of the relatively small size of the triple-helical domain. In the present study, we report on the identification and characterization of a collagen gene encoding a polypeptide which is co-expressed with the alpha 1(VIII) chain in corneal endothelial cells. This collagen chain contains a triple-helical and a carboxyl non-triple-helical domain encoded by a single, large exon both in mice and humans. We conclude, therefore, that the genes encodes a novel member of the short chain collagen family, and we have given this chain the designation alpha 2(VIII) collagen. By in situ hybridization we demonstrate that the alpha 2(VIII) gene is located in the p32.3-p34.3 region of the short arm of chromosome 1.
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Affiliation(s)
- Y Muragaki
- Department of Anatomy and Cellular Biology, Harvard Medical School, Boston, Massachusetts 02115-6092
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Muragaki Y, Jacenko O, Apte S, Mattei MG, Ninomiya Y, Olsen BR. The alpha 2(VIII) collagen gene. A novel member of the short chain collagen family located on the human chromosome 1. J Biol Chem 1991. [DOI: 10.1016/s0021-9258(20)89508-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Abstract
A review of 5 consecutive cases in which removal of the silicone-silver wire prosthesis was necessary within 2 years of implantation has revealed multiple breaks in all strands of the silver wire core in both of the paired cylinders.
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