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Pinheiro LCS, Hoelz LVB, Ferreira MLG, Oliveira LG, Pereira RFA, do Valle AM, André LSP, Scaffo J, Pinheiro FR, Ribeiro TAN, Sachs D, Pascoal ACRF, Boechat N, Aguiar-Alves F. Synthesis of benzoylthiourea derivatives and analysis of their antibacterial performance against planktonic Staphylococcus aureus and its biofilms. Lett Appl Microbiol 2020; 71:645-651. [PMID: 32725897 DOI: 10.1111/lam.13359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/19/2020] [Accepted: 07/19/2020] [Indexed: 11/30/2022]
Abstract
Following the appearance of several antimicrobial agents to control the spread of infections, two major challenges have emerged: (i) the occurrence and blowout of multiresistant bacteria and the increase of chronic diseases and (ii) difficult-to-eradicate infections. In this study, we tested five benzoylthiourea derivatives for their ability to inhibit and stop bacterial growth and evaluated the possible influence of 1,2,4-triazolyl-benzoylthiourea derivative 4 on the formation and eradication of Staphylococcus aureus biofilms. Benzoylthiourea derivatives 4, 6, 10, 11 and 13 were obtained in one or two steps with low cost and subjected to tests to identify their minimum inhibitory concentration (MIC) and minimum bactericidal concentration. In vitro tests were also performed to assess their effects on biofilm formation and in preformed biofilms and scanning electron microscopy was used to visualize the effects on biofilm formation. The 1,2,4-triazolyl-benzoylthiourea derivative 4 showed bacteriostatic activity against the S. aureus HU25 clinical strain with an MIC of 16 µg ml-1 , which is below the toxic concentration (at 2500 µg ml-1 , 62·25% of the cells remained viable). Compound 4 also effectively prevented biofilm formation at the three subinhibitory concentrations tested (1/2 MIC, 1/4 MIC and 1/8 MIC) as confirmed by scanning electron microscopy. For breakdown of formed biofilms, the main influence was at a subinhibitory concentration (1/2 MIC). These findings make compound 4 a strong candidate for studies on the development of new antimicrobial and antibiofilm agents.
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Affiliation(s)
- L C S Pinheiro
- Drug Synthesis Department, Drug Technology Institute, Farmanguinhos - FIOCRUZ, Oswaldo Cruz Foundation, Manguinhos, RJ, Brazil
| | - L V B Hoelz
- Drug Synthesis Department, Drug Technology Institute, Farmanguinhos - FIOCRUZ, Oswaldo Cruz Foundation, Manguinhos, RJ, Brazil
| | - M L G Ferreira
- Drug Synthesis Department, Drug Technology Institute, Farmanguinhos - FIOCRUZ, Oswaldo Cruz Foundation, Manguinhos, RJ, Brazil
| | - L G Oliveira
- Drug Synthesis Department, Drug Technology Institute, Farmanguinhos - FIOCRUZ, Oswaldo Cruz Foundation, Manguinhos, RJ, Brazil
| | - R F A Pereira
- Laboratory of Molecular Epidemiology and Biotechnology/Rodolpho Albino University Laboratory, Fluminense Federal University, Niteroi, RJ, Brazil.,Postgraduate Program in Science and Biotechnology, Fluminense Federal University, Niteroi, RJ, Brazil
| | - A M do Valle
- Laboratory of Molecular Epidemiology and Biotechnology/Rodolpho Albino University Laboratory, Fluminense Federal University, Niteroi, RJ, Brazil
| | - L S P André
- Laboratory of Molecular Epidemiology and Biotechnology/Rodolpho Albino University Laboratory, Fluminense Federal University, Niteroi, RJ, Brazil.,Postgraduate Program in Pathology, Fluminense Federal University, Niteroi, RJ, Brazil
| | - J Scaffo
- Laboratory of Molecular Epidemiology and Biotechnology/Rodolpho Albino University Laboratory, Fluminense Federal University, Niteroi, RJ, Brazil
| | - F R Pinheiro
- Laboratory of Molecular Epidemiology and Biotechnology/Rodolpho Albino University Laboratory, Fluminense Federal University, Niteroi, RJ, Brazil.,Postgraduate Program in Applied Microbiology and Parasitology, Fluminense Federal University, Niterói, RJ, Brazil
| | - T A N Ribeiro
- Institute of Physics and Chemistry, Federal University of Itajubá, Itajubá, MG, Brazil
| | - D Sachs
- Institute of Physics and Chemistry, Federal University of Itajubá, Itajubá, MG, Brazil
| | - A C R F Pascoal
- Department of Basic Sciences, Nova Friburgo Health Institute, Fluminense Federal University, Nova Friburgo, RJ, Brazil
| | - N Boechat
- Drug Synthesis Department, Drug Technology Institute, Farmanguinhos - FIOCRUZ, Oswaldo Cruz Foundation, Manguinhos, RJ, Brazil
| | - F Aguiar-Alves
- Laboratory of Molecular Epidemiology and Biotechnology/Rodolpho Albino University Laboratory, Fluminense Federal University, Niteroi, RJ, Brazil.,Postgraduate Program in Pathology, Fluminense Federal University, Niteroi, RJ, Brazil.,Postgraduate Program in Applied Microbiology and Parasitology, Fluminense Federal University, Niterói, RJ, Brazil
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Michel S, Madariaga M, LaMuraglia G, Villani V, Sekijima M, Farkash E, Colvin R, Allan J, Yamada K, Sachs D, Madsen J. The Effects of Kidney Graftectomy on the Tolerance Induced By Heart-Kidney Cotransplantation in Miniature Swine Depends on the MHC Barrier Crossed. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.395] [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: 10/23/2022] Open
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4
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Chen T, Yuan J, Duncanson S, Hibert ML, Kodish BC, Mylavaganam G, Maker M, Li H, Sremac M, Santosuosso M, Forbes B, Kashiwagi S, Cao J, Lei J, Thomas M, Hartono C, Sachs D, Markmann J, Sambanis A, Poznansky MC. Alginate encapsulant incorporating CXCL12 supports long-term allo- and xenoislet transplantation without systemic immune suppression. Am J Transplant 2015; 15:618-27. [PMID: 25693473 DOI: 10.1111/ajt.13049] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [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: 02/24/2014] [Revised: 10/03/2014] [Accepted: 10/04/2014] [Indexed: 01/25/2023]
Abstract
Islet transplantation represents a potentially curative approach for individuals with Type I Diabetes. The requirement for systemic immune suppression to control immune-mediated rejection of transplanted islets and the limited human islet supply represent significant roadblocks to progress for this approach. Islet microencapsulation in alginate offers limited protection in the absence of systemic immunosuppression, but does not support long-term islet survival. The chemokine, CXCL12, can repel effector T cells while recruiting immune-suppressive regulatory T cells (Tregs) to an anatomic site while providing a prosurvival signal for beta-cells. We proposed that coating or encapsulating donor islets with CXCL12 would induce local immune-isolation and protect and support the function of an allo- or xenograft without systemic immune suppression. This study investigated the effect of alginate microcapsules incorporating CXCL12 on islet function. Islet transplantation was performed in murine models of insulin-dependent diabetes. Coating of islets with CXCL12 or microencapsulation of islets with alginate incorporating the chemokine, resulted in long-term allo- and xenoislet survival and function, as well as a selective increase in intragraft Tregs. These data support the use of CXCL12 as a coating or a component of an alginate encapsulant to induce sustained local immune-isolation for allo- or xenoislet transplantation without systemic immunosuppression.
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Affiliation(s)
- T Chen
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Charlestown, MA
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Le BBS, Tillou X, Branchereau J, Dilek N, Poirier N, Châtelais M, Charreau B, Minault D, Hervouet J, Renaudin K, Crossan C, Scobie L, Takeuchi Y, Diswall M, Breimer M, Klar N, Daha M, Simioni P, Robson S, Nottle M, Salvaris E, Cowan P, d’Apice A, Sachs D, Yamada K, Lagutina I, Duchi R, Perota A, Lazzari G, Galli C, Cozzi E, Soulillou JP, B. V, Blancho G. Bortezomib, C1-inhibitor and plasma exchange do not prolong the survival of multi-transgenic GalT-KO pig kidney xenografts in baboons. Am J Transplant 2015; 15:358-70. [PMID: 25612490 PMCID: PMC4306235 DOI: 10.1111/ajt.12988] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 07/23/2014] [Accepted: 08/12/2014] [Indexed: 01/25/2023]
Abstract
Galactosyl-transferase KO (GalT-KO) pigs represent a potential solution to xenograft rejection, particularly in the context of additional genetic modifications. We have performed life supporting kidney xenotransplantation into baboons utilizing GalT-KO pigs transgenic for human CD55/CD59/CD39/HT. Baboons received tacrolimus, mycophenolate mofetil, corticosteroids and recombinant human C1 inhibitor combined with cyclophosphamide or bortezomib with or without 2-3 plasma exchanges. One baboon received a control GalT-KO xenograft with the latter immunosuppression. All immunosuppressed baboons rejected the xenografts between days 9 and 15 with signs of acute humoral rejection, in contrast to untreated controls (n = 2) that lost their grafts on days 3 and 4. Immunofluorescence analyses showed deposition of IgM, C3, C5b-9 in rejected grafts, without C4d staining, indicating classical complement pathway blockade but alternate pathway activation. Moreover, rejected organs exhibited predominantly monocyte/macrophage infiltration with minimal lymphocyte representation. None of the recipients showed any signs of porcine endogenous retrovirus transmission but some showed evidence of porcine cytomegalovirus (PCMV) replication within the xenografts. Our work indicates that the addition of bortezomib and plasma exchange to the immunosuppressive regimen did not significantly prolong the survival of multi-transgenic GalT-KO renal xenografts. Non-Gal antibodies, the alternative complement pathway, innate mechanisms with monocyte activation and PCMV replication may have contributed to rejection.
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Affiliation(s)
- Bas-Bernardet S. Le
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France,Transplant Immunology Unit, Padua General Hospital, Padua, Italy and Consortium for Research in Organ Transplantation (CORIT), Padua, Italy
| | - X. Tillou
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France
| | - J. Branchereau
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France
| | - N. Dilek
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France,Effimune, Nantes, France
| | - N. Poirier
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France,Effimune, Nantes, France
| | - M. Châtelais
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France,Transplant Immunology Unit, Padua General Hospital, Padua, Italy and Consortium for Research in Organ Transplantation (CORIT), Padua, Italy
| | - B. Charreau
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France,Transplant Immunology Unit, Padua General Hospital, Padua, Italy and Consortium for Research in Organ Transplantation (CORIT), Padua, Italy
| | - D. Minault
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France
| | - J. Hervouet
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France
| | - K. Renaudin
- Pathology Laboratory, CHU- Hôtel Dieu, Nantes, France
| | - C. Crossan
- Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow, United Kingdom,Transplant Immunology Unit, Padua General Hospital, Padua, Italy and Consortium for Research in Organ Transplantation (CORIT), Padua, Italy
| | - L. Scobie
- Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow, United Kingdom,Transplant Immunology Unit, Padua General Hospital, Padua, Italy and Consortium for Research in Organ Transplantation (CORIT), Padua, Italy
| | - Y. Takeuchi
- University College London, London, United Kingdom,Transplant Immunology Unit, Padua General Hospital, Padua, Italy and Consortium for Research in Organ Transplantation (CORIT), Padua, Italy
| | - M. Diswall
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - M.E. Breimer
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - N. Klar
- Department of Nephrology, University Medical Center, Leiden, The Netherlands,Transplant Immunology Unit, Padua General Hospital, Padua, Italy and Consortium for Research in Organ Transplantation (CORIT), Padua, Italy
| | - M.R. Daha
- Department of Nephrology, University Medical Center, Leiden, The Netherlands,Transplant Immunology Unit, Padua General Hospital, Padua, Italy and Consortium for Research in Organ Transplantation (CORIT), Padua, Italy
| | - P. Simioni
- Department of Cardiologic, Thoracic and Vascular Sciences, University of Padua, Padua, Italy,European Xenotransplantation Network Xenome (LSHB- CT- 2006- 037377)
| | - S.C. Robson
- Gastroenterology and Transplant Institute, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - M.B. Nottle
- Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, Adelaide, Australia
| | - E.J. Salvaris
- Immunology Research Centre, St Vincent’s Hospital Melbourne, Victoria, Australia
| | - P.J. Cowan
- Immunology Research Centre, St Vincent’s Hospital Melbourne, Victoria, Australia
| | - A.J.F. d’Apice
- Immunology Research Centre, St Vincent’s Hospital Melbourne, Victoria, Australia
| | - D.H. Sachs
- Transplantation Biology Research Center (TBRC), Massachusetts General Hospital, and Harvard Medical School, Boston, MA, USA
| | - K. Yamada
- Transplantation Biology Research Center (TBRC), Massachusetts General Hospital, and Harvard Medical School, Boston, MA, USA
| | - I. Lagutina
- Avantea, Cremona, Italy,European Xenotransplantation Network Xenome (LSHB- CT- 2006- 037377)
| | - R. Duchi
- Avantea, Cremona, Italy,European Xenotransplantation Network Xenome (LSHB- CT- 2006- 037377)
| | - A. Perota
- Avantea, Cremona, Italy,European Xenotransplantation Network Xenome (LSHB- CT- 2006- 037377)
| | - G. Lazzari
- Avantea, Cremona, Italy,European Xenotransplantation Network Xenome (LSHB- CT- 2006- 037377)
| | - C. Galli
- Avantea, Cremona, Italy,Dept. of Veterinary Medical Science, University of Bologna, Ozzano Emilia, Italy,European Xenotransplantation Network Xenome (LSHB- CT- 2006- 037377)
| | - E. Cozzi
- Transplant Immunology Unit, Padua General Hospital, Padua, Italy and Consortium for Research in Organ Transplantation (CORIT), Padua, Italy,European Xenotransplantation Network Xenome (LSHB- CT- 2006- 037377)
| | - J.-P. Soulillou
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France,European Xenotransplantation Network Xenome (LSHB- CT- 2006- 037377)
| | - Vanhove B.
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France,Effimune, Nantes, France
| | - G. Blancho
- Institut de Transplantation- Urologie- Néphrologie (ITUN), Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1064, Centre Hospitalier Universitaire (CHU) de Nantes, Université de Nantes, Nantes, France,European Xenotransplantation Network Xenome (LSHB- CT- 2006- 037377)
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Michel S, Madariaga M, La M, Villani V, Sekijima M, Farkash E, Colvin R, Allan J, Yamada K, Sachs D, Madsen J. The Effects of Kidney Graftectomy on the Tolerance Induced by Heart-Kidney Cotransplantation in Miniature Swine Depends on the MHC Barrier Crossed. Thorac Cardiovasc Surg 2015. [DOI: 10.1055/s-0035-1544543] [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: 10/24/2022]
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Madariaga M, Michel S, La Muraglia G, Sihag S, Leonard D, Powell H, Farkash E, Colvin R, Cetrulo C, Huang C, Sachs D, Madsen J, Allan J. Recipient-Matching of Passenger Leukocytes Prolongs Survival of Donor Lung Allografts in Miniature Swine. Transplantation 2014. [DOI: 10.1097/00007890-201407151-01337] [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: 11/25/2022]
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Schreuer N, Sachs D, Rosenblum S. Participation in leisure activities: differences between children with and without physical disabilities. Res Dev Disabil 2014; 35:223-233. [PMID: 24176261 DOI: 10.1016/j.ridd.2013.10.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [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: 08/15/2013] [Revised: 09/29/2013] [Accepted: 10/01/2013] [Indexed: 06/02/2023]
Abstract
The aim of the current study was to compare varied dimensions of participation in leisure activities among school-aged children ages 10-16 with and without disabilities. The Children Leisure Activity Scale (CLASS) was administrated to 294 children, 81 with and 213 without physical disability. Two-way MANCOVA revealed significant differences between the frequency of participation in leisure activities of the study groups: an effect of disability F(4,265=239.57; p<0.001, η(2)=0.78); an effect of gender F(4,265=3.35; p<0.01, η(2)=0.05); and an interaction effect between gender and disability F(4,265=5.23; p<0.001, η(2)=0.64). Children with disabilities, and mostly girls, were found at risk to participate in a narrower variety of activities that involved fewer social interactions. Using linear regressions for each group two different models were identified. Using the CLASS the study contributes evidence-based data regarding children at risk for leisure participation. In addition, the research further established the discriminate validity of the CLASS.
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Affiliation(s)
- N Schreuer
- Department of Occupational Therapy, University of Haifa, Haifa 31905, Israel.
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Michel S, Madariaga M, Tasaki M, Villani V, LaMuraglia II G, Farkash E, Allan J, Sachs D, Yamada K, Madsen J. Kidney-Induced Cardiac Allograft Tolerance across a Full MHC-Barrier in Miniature Swine. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.983] [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: 11/29/2022] Open
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Schwarzenböck S, Sachs D, Souvatzoglou M, Schuster T, Nawroth R, Weirich G, Treiber U, Wester HJ, Ziegler S, Schwaiger M, Senekowitsch-Schmidtke R, Krause BJ. [[¹¹C]choline as a pharmacodynamic marker for docetaxel therapy. Response assessment in a LNCaP prostate cancer xenograft mouse model]. Nuklearmedizin 2013; 52:141-7. [PMID: 23396481 DOI: 10.3413/nukmed-0521-12-07] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 01/17/2013] [Indexed: 11/20/2022]
Abstract
UNLABELLED The AIM of this study was to determine whether [¹¹C]choline can be used for docetaxel therapy response assessment in a LNCaP-prostate cancer xenograft mouse model using [¹¹C]choline small-animal PET/CT. ANIMALS, METHODS The androgen-dependent human prostate cancer cell line LNCaP was implanted subcutaneously into the left flanks of 17 SCID-mice, 12.5 mg testosterone platelets were implanted in the neck wrinkle. All mice were injected 4-6 weeks after xenograft implantation with 37 MBq [¹¹C]choline via the tail vein. Dynamic imaging was performed for 60 minutes with a small-animal PET/CT scanner. After the first [¹¹C]choline PET/CT imaging 8 mice were subsequently injected intravenously with docetaxel twice (days 1 and 5) at a dose of 3 mg/kg body weight. 8 mice were treated with PBS as a control. [¹¹C]choline PET/CT imaging was performed on day 7, 14 and 21 after treatment. Image analysis was performed using tumor/muscle (T/M) ratios (ROI(T)/ROI(M) = T/M ratio). RESULTS All LNCaP tumours could be visualized by [¹¹C]choline PET/CT. Before treatment the mean T/M ratio was 2.0 ± 0.2 in the docetaxel-treated group and 1.9 ± 0.2 in the control group (p = 0.837). There was a reduction in the mean [¹¹C]choline uptake after docetaxel treatment of the tumours of the LNCaP cell line as early as 1 week after initiation of therapy (T/M(mean) ratio 1.5 ± 0.2 after one week, 1.3 ± 0.2 after 2 weeks and 1.4 ± 0.2 after 3 weeks). There was no decrease in [¹¹C]choline uptake in the control group. CONCLUSION Our results show that [¹¹C]choline has the potential for use in the early monitoring of the therapeutic effect of docetaxel in a LNCaP prostate cancer xenograft animal model.
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Affiliation(s)
- S Schwarzenböck
- Klinik für Nuklearmedizin, Klinikum rechts der Isar der Technischen Universität München
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Andreola G, Chittenden M, Shaffer J, Cosimi A, Kawai T, Cotter P, LoCascio S, Morokata T, Dey B, Tolkoff-Rubin N, Preffer F, Bonnefoix T, Kattleman K, Spitzer T, Sachs D, Sykes M. Mechanisms of donor-specific tolerance in recipients of haploidentical combined bone marrow/kidney transplantation. Am J Transplant 2011; 11:1236-47. [PMID: 21645255 PMCID: PMC3140222 DOI: 10.1111/j.1600-6143.2011.03566.x] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We recently reported long-term organ allograft survival without ongoing immunosuppression in four of five patients receiving combined kidney and bone marrow transplantation from haploidentical donors following nonmyeloablative conditioning. In vitro assays up to 18 months revealed donor-specific unresponsiveness. We now demonstrate that T cell recovery is gradual and is characterized by memory-type cell predominance and an increased proportion of CD4⁺ CD25⁺ CD127⁻ FOXP3⁺ Treg during the lymphopenic period. Complete donor-specific unresponsiveness in proliferative and cytotoxic assays, and in limiting dilution analyses of IL-2-producing and cytotoxic cells, developed and persisted for the 3-year follow-up in all patients, and extended to donor renal tubular epithelial cells. Assays in two of four patients were consistent with a role for a suppressive tolerance mechanism at 6 months to 1 year, but later (≥ 18 months) studies on all four patients provided no evidence for a suppressive mechanism. Our studies demonstrate, for the first time, long-term, systemic donor-specific unresponsiveness in patients with HLA-mismatched allograft tolerance. While regulatory cells may play an early role, long-term tolerance appears to be maintained by a deletion or anergy mechanism.
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Affiliation(s)
- G. Andreola
- Transplantation Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - M. Chittenden
- Transplantation Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - J. Shaffer
- Transplantation Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - A.B. Cosimi
- Transplant Unit, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - T. Kawai
- Transplant Unit, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - P. Cotter
- Transplantation Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - S.A. LoCascio
- Transplantation Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - T. Morokata
- Transplantation Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - B.R. Dey
- Bone Marrow Transplant Unit, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - N.T. Tolkoff-Rubin
- Transplant Unit, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - F. Preffer
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - T. Bonnefoix
- INSERM, U823, Oncogenic Pathways in the Haematological Malignancies, Institut Albert Bonniot, Grenoble Cedex 9, France, and Pôle de Recherche et Pôle de Biologie, Cellular and Molecular Haematology Unit, Plateforme Hospitalière de Génétique Moléculaire des Tumeurs, Centre Hospitalier Universitaire de Grenoble, Cedex 9, France
| | - K. Kattleman
- Transplantation Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - T.R. Spitzer
- Bone Marrow Transplant Unit, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - D.H. Sachs
- Transplantation Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA
| | - M. Sykes
- Transplantation Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston MA, USA, Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
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Duran-Struuck R, Crepeau R, Matar A, Pathiraja V, Horner B, Robson S, Fishman J, Spitzer T, Sachs D, Huang C. Impact of Donor Stem Cell Mobilization Reactions on Reduced Intensity Haploidentical HCT Outcomes in Miniature Swine. Biol Blood Marrow Transplant 2011. [DOI: 10.1016/j.bbmt.2010.12.487] [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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Haas M, Schuerpf F, Alicot-Carroll E, Chiu I, Kim K, Sachs D, Carroll M. N2 peptide blocks natural IgM-mediated injury in a murine model of myocardial infarction. Mol Immunol 2010. [DOI: 10.1016/j.molimm.2010.05.224] [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: 11/29/2022]
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15
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Abstract
A prospective, population-based study of the epidemiology of ROP in a well-defined geographical area of Sweden was performed. Two hundred and sixty children with a birth weight of 1500 g or less, and surviving for at least eight weeks, were included in the study. ROP was seen in 40.4% of the children. We suggest that prematurely born children with a gestational age of 32 weeks or less ought to be screened for ROP.
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Sachs D, Villarreal C, Cunha F, Parada C, Ferreira S. The role of PKA and PKCepsilon pathways in prostaglandin E2-mediated hypernociception. Br J Pharmacol 2009; 156:826-34. [PMID: 19220288 DOI: 10.1111/j.1476-5381.2008.00093.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND AND PURPOSE Protein kinase (PK) A and the epsilon isoform of PKC (PKCepsilon) are involved in the development of hypernociception (increased sensitivity to noxious or innocuous stimuli) in several animal models of acute and persistent inflammatory pain. The present study evaluated the contribution of PKA and PKCepsilon to the development of prostaglandin E(2) (PGE(2))-induced mechanical hypernociception. EXPERIMENTAL APPROACH Prostaglandin E(2)-induced mechanical hypernociception was assessed by constant pressure rat paw test. The activation of PKA or PKCepsilon was evaluated by radioactive enzymic assay in the dorsal root ganglia (DRG) of sensory neurons from the hind paws. KEY RESULTS Hypernociception induced by PGE(2) (100 ng) by intraplantar (i.pl.) injection, was reduced by i.pl. treatment with inhibitors of PKA [A-kinase-anchoring protein St-Ht31 inhibitor peptide (AKAPI)], PKCepsilon (PKCepsilonI) or adenylyl cyclase. PKA activity was essential in the early phase of the induction of hypernociception, whereas PKC activity was involved in the maintenance of the later phase of hypernociception. In the DRG (L4-L5), activity of PKA increased at 30 min after injection of PGE(2) but PKC activity increased only after 180 min. Moreover, i.pl. injection of the catalytic subunit of PKA induced hypernociception which was markedly reduced by pretreatment with an inhibitor of PKCepsilon, while the hypernociception induced by paw injection of PKCepsilon agonist was not affected by an inhibitor of PKA (AKAPI). CONCLUSIONS AND IMPLICATIONS Taken together, these findings are consistent with the suggestion that PKA activates PKCepsilon, which is a novel mechanism of interaction between these kinases during the development of PGE(2)-induced mechanical hypernociception.
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Affiliation(s)
- D Sachs
- Department of Pharmacology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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17
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Millington T, Tena A, Boskovic S, Kawai T, Wain J, Allan J, Sachs D, Madsen J. 32: Regeneration of Naïve T-Lymphocytes from Heart-Thymus Grafts Occurs at a Low Level and Is Associated with Prolonged Survival but Not Tolerance. J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.038] [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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18
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Aoyama A, Ng C, Millington T, Boskovic S, Ito S, Wain J, Houser S, Madsen J, Sachs D, Kawai T, Allan J. 449: Cellular Immunity Is Enhanced in a Non-Human Primate Lung Transplantation Model, as Compared to an Analogous Kidney Transplantation Model. J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.456] [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] Open
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19
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Knosalla C, Schmitt-Knosalla I, Yazawa K, Bodyak N, Shang H, Bühler L, Gollackner B, Griesemer A, Schuurman HJ, Awaad M, Sachs D, Cooper DK, Yamada K, Hetzer R, Usheva A, Robson SC. C-DNA microarray detects renal and cardiac endothelial heterogeneity in pig-to-baboon xenotransplantation. Thorac Cardiovasc Surg 2009. [DOI: 10.1055/s-0029-1191351] [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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20
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Yamada K, Griesemer A, Ishikawa Y, Hirakata A, Moran S, Schule P, Iwaki H, Arn S, Shimizu A, Sachs D. AVERAGE SURVIVAL GREATER THAN 50 DAYS WITH EVIDENCE FOR BABOON THYMOPOIESIS IN PORCINE THYMUS IN BABOON RECIPIENTS OF LIFE-SUPPORTING GALT-KO PIG THYMOKIDNEYS. Transplantation 2008. [DOI: 10.1097/01.tp.0000332202.96824.b2] [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: 11/25/2022]
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21
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Meltzer A, Weiss M, Sahara H, Cochrane M, Sayre J, Houser S, Madsen J, Sachs D, Rosengard B, Wain J, Allan J. 31: Gastric Aspiration Leads to the Development of an Immune Response to Collagen V and Donor-Derived Class I Peptides Following Lung Transplantation in Miniature Swine. J Heart Lung Transplant 2008. [DOI: 10.1016/j.healun.2007.11.035] [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: 11/26/2022] Open
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22
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Knosalla C, Behdad A, Bodyak N, Bühler L, Houser S, Gollackner B, Csizmadia E, Kaczmarek E, Schmitt-Knosalla I, Schuurman H, Sachs D, Yamada K, Hetzer R, Usheva A, Robson S. Vascular endothelial heterogeneity influences the outcome of pig-to-baboon cardiac and renal xenografts and the associated systemic manifestations. Thorac Cardiovasc Surg 2008. [DOI: 10.1055/s-2008-1037923] [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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23
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Dey BR, Shaffer J, Yee AJ, McAfee S, Caron M, Power K, Ting DT, Colby C, Preffer F, Ballen K, Attar E, Saidman S, Tarbell N, Sachs D, Sykes M, Spitzer TR. Comparison of outcomes after transplantation of peripheral blood stem cells versus bone marrow following an identical nonmyeloablative conditioning regimen. Bone Marrow Transplant 2007; 40:19-27. [PMID: 17468773 DOI: 10.1038/sj.bmt.1705688] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This is the first study to examine the outcomes in 54 patients with hematologic malignancies who received an HLA-matched related donor bone marrow (BM, n = 42) or GCSF-mobilized peripheral blood stem cells (PBSC, n = 12) following identical nonmyeloablative conditioning with the intention of induction of mixed chimerism (MC) followed by prophylactic donor leukocyte infusion (pDLI) to convert MC to full donor chimerism (FDC) and capture a graft-versus-tumor effect without clinical graft-versus-host disease (GVHD). Neutrophil and platelet recovery were faster and transfusion requirement was less in PBSC recipients (P < 0.05). A total of 48% of BMT recipients achieved FDC with a median conversion time of 84 days, including 13 following pDLI. In contrast, 83% (P = 0.04) in the PBSC group had spontaneous FDC at a median of 14 days, precluding the administration of pDLI. There was no significant difference in the incidences of acute or chronic GVHD, though the rates of chronic GVHD were considerably higher in PBSC group than in the BM group (6/7, 86% vs 10/24, 42%). CD4 and CD8 T-cell recovery was faster in PBSC recipients. In PBSC recipients, a higher number of CD34+ cells was associated with increased rates of severe, grade III-IV acute GVHD.
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Affiliation(s)
- B R Dey
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
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24
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Sahara H, Weiss M, Ng C, Houser S, Pujara A, Sayer J, Wain J, Sachs D, Madsen J, Allan J. 374: Thymectomy does not abrogate long-term acceptance of MHC class I-disparate lung allografts. J Heart Lung Transplant 2007. [DOI: 10.1016/j.healun.2006.11.395] [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: 11/26/2022] Open
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25
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Shoji T, Sahara H, Muniappan A, Guenther D, Houser S, Pujara A, Bravard M, Wain J, Sachs D, Madsen J, Allan J. 551: An MHC class II disparity raises the threshold for tolerance induction in pulmonary allografts in miniature swine. J Heart Lung Transplant 2007. [DOI: 10.1016/j.healun.2006.11.576] [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: 10/23/2022] Open
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26
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Sahara H, Weiss M, Wikiel K, Sayre J, Pujara A, Ng C, Cho P, Horner B, Houser S, Wain J, Sachs D, Madsen J, Huang C, Allan J. 31: Mixed hematopoietic chimerism prevents lung allograft rejection in miniature swine. J Heart Lung Transplant 2007. [DOI: 10.1016/j.healun.2006.11.045] [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] Open
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27
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Shoji T, Sahara H, Muniappan A, Guenther D, Wain J, Houser S, Bravard M, Pujara A, Sachs D, Madsen J, Allan J. 248. J Heart Lung Transplant 2006. [DOI: 10.1016/j.healun.2005.11.258] [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: 11/26/2022] Open
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28
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Guenther D, Mezrich J, Muniappan A, Shoji T, Sahara H, Bravard M, Pujara A, Houser S, Sachs D, Madsen J. Breaking tolerance to solid organ allografts via allorecognition of donor class I major histocompatibility complex peptides. J Heart Lung Transplant 2005. [DOI: 10.1016/j.healun.2004.11.046] [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: 11/24/2022] Open
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29
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Guenther D, Johnston D, Muniappan A, Shoji T, Hasse R, Bravard M, Houser S, Allan J, Sachs D, Madsen J. Marked inhibition of cardiac allograft vasculopathy with immunodominant allopeptide-pulsed host dendritic cells. J Heart Lung Transplant 2005. [DOI: 10.1016/j.healun.2004.11.053] [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: 10/25/2022] Open
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30
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Muniappan A, Johnston D, Guenther D, Shoji T, Boskovic S, Hoerbelt R, Houser S, Allan J, Yamada K, Kawai T, Wain J, Sachs D, Madsen J. Heart and en-bloc thymus transplantation in cynomolgus monkeys. J Heart Lung Transplant 2005. [DOI: 10.1016/j.healun.2004.11.288] [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: 10/25/2022] Open
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31
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-N. Nguyen B, Schroder C, Allan J, Zhang T, Wu G, Azimzadeh A, Shuurman H, Sachs D, Pierson R. Xenogenic EX vico perfusion of lungs from GalT KO pigs. J Heart Lung Transplant 2005. [DOI: 10.1016/j.healun.2004.11.184] [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: 10/25/2022] Open
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32
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Wyatt AJ, Sachs D, Began D, Shia J, Delgado R, Busam KJ. Virus-Associated Trichodysplasia Spinulosa. J Cutan Pathol 2005. [DOI: 10.1111/j.0303-6987.2005.0319l.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: 12/01/2022]
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33
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Korzets A, Sachs D, Gremitsky A, Gershkovitz R, Farrage G, Chlibowsky A, Erlich N. Unexplained polyuria and non-obstructive hydronephrosis in a urological department. Nephrol Dial Transplant 2004. [DOI: 10.1093/ndt/gfh515] [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: 11/14/2022] Open
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34
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Dickler M, Rugo H, Caravelli J, Brogi E, Sachs D, Panageas K, Flores S, Moasser M, Norton L, Hudis C. Phase II trial of erlotinib (OSI-774), an epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitor, and bevacizumab, a recombinant humanized monoclonal antibody to vascular endothelial growth factor (VEGF), in patients (pts) with metastatic breast cancer (MBC). J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.2001] [Citation(s) in RCA: 10] [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: 11/20/2022] Open
Affiliation(s)
- M. Dickler
- Memorial Sloan-Kettering Cancer Cancer, New York, NY; University of California, San Francisco, CA
| | - H. Rugo
- Memorial Sloan-Kettering Cancer Cancer, New York, NY; University of California, San Francisco, CA
| | - J. Caravelli
- Memorial Sloan-Kettering Cancer Cancer, New York, NY; University of California, San Francisco, CA
| | - E. Brogi
- Memorial Sloan-Kettering Cancer Cancer, New York, NY; University of California, San Francisco, CA
| | - D. Sachs
- Memorial Sloan-Kettering Cancer Cancer, New York, NY; University of California, San Francisco, CA
| | - K. Panageas
- Memorial Sloan-Kettering Cancer Cancer, New York, NY; University of California, San Francisco, CA
| | - S. Flores
- Memorial Sloan-Kettering Cancer Cancer, New York, NY; University of California, San Francisco, CA
| | - M. Moasser
- Memorial Sloan-Kettering Cancer Cancer, New York, NY; University of California, San Francisco, CA
| | - L. Norton
- Memorial Sloan-Kettering Cancer Cancer, New York, NY; University of California, San Francisco, CA
| | - C. Hudis
- Memorial Sloan-Kettering Cancer Cancer, New York, NY; University of California, San Francisco, CA
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35
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Mezrich J, Yamada K, Benjamin L, Sachs J, Kesselheim J, Johnston D, Lee R, Houser S, Amoah H, Ledgerwood L, Allan J, Sachs D, Madsen J. The role of the thymus in the maintenance phase of tolerance in miniature swine. J Heart Lung Transplant 2002. [DOI: 10.1016/s1053-2498(01)00500-9] [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] Open
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36
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Benjamin L, Allan J, Mezrich J, Houser S, Johnston D, Lee R, Amoah H, Ledgerwood L, Sachs D, Madsen J. Intracoronary interferon-γ accellerates cardiac allograft rejection in miniature swine. J Heart Lung Transplant 2002. [DOI: 10.1016/s1053-2498(01)00622-2] [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: 11/24/2022] Open
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37
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Serafini FM, Sachs D, Bloomston M, Carey LC, Karl RC, Murr MM, Rosemurgy AS. Location, not staging, of cholangiocarcinoma determines the role for adjuvant chemoradiation therapy. Am Surg 2001; 67:839-43; discussion 843-4. [PMID: 11565760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
The role of adjuvant chemoradiation therapy (CT/XRT) in the treatment of cholangiocarcinoma is controversial. We undertook this study to determine whether CT/XRT is appropriate after resection of cholangiocarcinomas. One hundred ninety-two patients with cholangiocarcinomas were treated from 1988 to 1999. After resection, patients were assigned a stage (TNM) and were stratified by location of the tumor as intrahepatic, perihilar, and distal tumors. Data are presented as mean +/- standard deviation. Of 192 patients 92 (48%) underwent resections of cholangiocarcinomas. Thirty-four patients had liver resections, 25 had bile duct resections, and 33 underwent pancreaticoduodenectomies. Thirty-four patients had adjuvant CT/XRT, three had adjuvant chemotherapy, four had neoadjuvant CT/XRT, and 50 had no radiation or chemotherapy. Mean survival of resected patients with adjuvant CT/XRT was 42 +/- 37.0 months and without CT/XRT it was 29 24.5 months (P = 0.07). Mean survival of patients with distal tumors receiving or not receiving CT/XRT was 41 +/- 21.8 versus 25 +/- 20.1 months, respectively, (P = 0.04). Adjuvant chemoradiation improves survival after resection for cholangiocarcinoma (P = 0.07) particularly in patients undergoing resection for distal tumors (P = 0.04). Benefits of adjuvant CT/XRT are apparent when stratified by location of cholangiocarcinomas rather than staging.
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Affiliation(s)
- F M Serafini
- Department of Surgery, University of South Florida, Tampa 33601, USA
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Marghoob AA, Blum R, Nossa R, Busam KJ, Sachs D, Halpern A. Agminated atypical (dysplastic) nevi: case report and review of the literature. Arch Dermatol 2001; 137:917-20. [PMID: 11453811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
BACKGROUND Patients with the atypical mole syndrome have multiple dysplastic nevi that appear to be randomly distributed on certain preferred anatomical sites such as the upper back. These dysplastic nevi are thought to be acquired melanocytic nevi that begin appearing at puberty. To our knowledge, the presence of agminated atypical (dysplastic) nevi has not been reported. OBSERVATION We describe a patient with the atypical mole syndrome who has more than 100 melanocytic nevi, many of which are clinically atypical and one of which proved to be a melanoma. Among his many melanocytic nevi is a cluster of approximately 50 nevi that are distributed in an area measuring 5 x 3 cm. The histopathologic features of these nevi are consistent with the diagnosis of "dysplastic nevus." CONCLUSIONS To our knowledge, agminated atypical (dysplastic) nevi have not been described previously. The presence of agminated atypical (dysplastic) nevi in a patient with the atypical mole syndrome can be theorized to arise because of loss of heterozygosity.
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Affiliation(s)
- A A Marghoob
- Dermatology Service, Memorial Sloan-Kettering Cancer Center, 1275 York Ave, New York, NY 10021, USA
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39
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Kawai T, Abrahamian G, Sogawa H, Wee S, Boskovic S, Andrew D, Nadazdin O, Mauiyyedi S, Weymouth D, Ko D, Colvin R, Sachs D, Cosimi A. Costimulatory blockade for induction of mixed chimerism and renal allograft tolerance in nonhuman primates. Transplant Proc 2001; 33:221-2. [PMID: 11266787 DOI: 10.1016/s0041-1345(00)01982-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- T Kawai
- Department of Surgery, Harvard Medical School, Cambridge, Massachusetts, USA
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40
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Sachs D, Su L, Dlugosz A. Verrucous annular ulcerated hip plaques. Diagnosis: superficial granulomatous pyoderma form of pyoderma gangrenosum. Arch Dermatol 2000; 136:1263-8. [PMID: 11030776 DOI: 10.1001/archderm.136.10.1263-a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- D Sachs
- University of Michigan, Ann Arbor, USA
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41
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Abstract
Lafora disease is a fatal neurometabolic disorder characterized by progressive myoclonic epilepsy. Diagnosis relies upon the discovery of specific inclusion bodies in any of several organs. Dermatologists and dermatopathologists should be familiar with this condition because axillary skin biopsy is useful to diagnose this disorder. We present a case of Lafora disease diagnosed by axillary skin biopsy and review the condition's clinical, histologic, and ultrastructural features.
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Affiliation(s)
- D Karimipour
- Department of Dermatology, University of Michigan Medical Center and University of Michigan Comprehensive Cancer Center, Ann Arbor 48109-0314, USA
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Sachs D. Introduction of Fritz Bach, Medawar Prize Laureate. Transplant Proc 1999; 31:50. [PMID: 10083009 DOI: 10.1016/s0041-1345(98)02089-2] [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: 10/18/2022]
Affiliation(s)
- D Sachs
- Harvard Medical School, Boston, Mass., USA
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43
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Menard M, Mawulawde K, Yamada K, Schwarze M, Lee R, Slisz J, Allison K, Sachs D, Madsen J. Transplantation of “thymoheart” allografts in miniature swine. J Heart Lung Transplant 1999. [DOI: 10.1016/s1053-2498(99)80156-9] [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] Open
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44
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Shaikh R, Sachs D, Fishman J, Miranda B, Oborne M, Engstrom L, Kennedy I, Meslin FX. Xenotransplantation and its implications. Background information for the press. Ann N Y Acad Sci 1998; 862:237-50. [PMID: 9928232 DOI: 10.1111/j.1749-6632.1998.tb09143.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- R Shaikh
- New York Academy of Sciences, USA
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45
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Choi SW, Park HY, Rubeiz NG, Sachs D, Gilchrest BA. Protein kinase C-alpha levels are inversely associated with growth rate in cultured human dermal fibroblasts. J Dermatol Sci 1998; 18:54-63. [PMID: 9747662 DOI: 10.1016/s0923-1811(98)00025-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [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: 02/08/2023]
Abstract
Human dermal fibroblasts are known to express the alpha, delta, epsilon, and zeta isoforms of protein kinase C (PKC). We asked whether the growth of human dermal fibroblasts correlates with expression of a particular PKC isoform. Of total PKC activity measured in the presence of calcium, a condition permissive for activation of all PKC isoforms, 75%) was contributed by PKC-alpha, suggesting that PKC-alpha is the dominant isoform in human dermal fibroblasts. We then further studied PKC-alpha under different culture conditions and in cultures derived from different aged donors. In both subconfluent and confluent cultures, total PKC activity and the level of PKC-alpha protein were consistently higher in slowly proliferating adult cells than in more rapidly proliferating newborn cells. Moreover, in newborn fibroblasts density strongly influenced these parameters. At subconfluent density, when cells were dividing exponentially, total PKC activity was 345+/-63 cpm/,ug protein; whereas at confluent density, when cells were growth arrested, it was 6-7 fold higher, 2334+/-50 cpm/ug protein. Immunoblot analysis using a specific monoclonal antibody against PKC-alpha exhibited a similar 6-7 fold increase in the level of PKC-alpha protein at confluent density. However, in adult cells, density had no influence on the already high total activity or level of PKC-alpha. To further determine whether the increases in the levels of total PKC activity and the alpha isoform correlate with the decreased growth rate, a characteristic of both adult donor-derived and confluent cells, total PKC activity and the level of PKC-alpha in subconfluent quiescent cells was compared to that in paired exponentially growing cells at the same density. Total PKC activity was 8836+/-71 cpm/microg protein in subconfluent quiescent cells versus 4415+/-175 cpm/microg protein in dividing cells. The level of PKC-alpha protein was also 2-3 fold higher in quiescent than in growing cultures. However, the amount of PKC-alpha mRNA in these two conditions was identical as determined by northern blot analysis. Taken together, these results suggest an inverse relationship between the levels of total PKC activity and PKC-alpha protein and fibroblast growth rate that is regulated at the post-transcriptional level.
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Affiliation(s)
- S W Choi
- Boston University School of Medicine, Department of Dermatology, MA 02118-2394, USA
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Brodersen R, Bijlsma F, Gori K, Jensen KT, Chen W, Dominguez J, Haverson K, Moore PF, Saalmüller A, Sachs D, Slierendrecht WJ, Stokes C, Vainio O, Zuckermann F, Aasted B. Analysis of the immunological cross reactivities of 213 well characterized monoclonal antibodies with specificities against various leucocyte surface antigens of human and 11 animal species. Vet Immunol Immunopathol 1998; 64:1-13. [PMID: 9656427 DOI: 10.1016/s0165-2427(98)00117-2] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
213 Monoclonal antibodies (mAbs) raised against leucocyte surface antigens from human and 11 animal species were analyzed for reactivities against leucocytes from human and 15 different animal species. We found 77 mAbs (36%) to cross-react. Altogether, 217 cross reactions were registered out of 3195 possible combinations (7%). Most of the cross reacting mAbs had integrin or MHC class II specificities. This study defined cross reactions on the following markers: CD1a, 1c, 2, 4, 5, 8, 9, 11a, 11b, 14, 18, 20, 21, 23, 29, 31, 41, 43, 44, 45, 45R, 46, 49, 61, 62L, TCR gamma/delta, BCR, Thy-1, MHC class I and MHC class II, Swine-WC7 and Cattle-WC1. In order to characterize the molecular weight (MW) of the corresponding cross reacting antigens, selected mAbs were used to immunoprecipitate the antigens. The MW's of the analyzed precipitated antigens were in good agreement with the MWs of the homologous antigens. The followed strategy was found to be efficient and economical in defining new leucocyte antigen reactive mAbs.
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Affiliation(s)
- R Brodersen
- Department of Veterinary Microbiology, Royal Veterinary and Agricultural University, Copenhagen, Denmark
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Grines CL, Marsalese DL, Brodie B, Griffin J, Donohue B, Costantini CR, Balestrini C, Stone G, Wharton T, Esente P, Spain M, Moses J, Nobuyoshi M, Ayres M, Jones D, Mason D, Sachs D, Grines LL, O'Neill W. Safety and cost-effectiveness of early discharge after primary angioplasty in low risk patients with acute myocardial infarction. PAMI-II Investigators. Primary Angioplasty in Myocardial Infarction. J Am Coll Cardiol 1998; 31:967-72. [PMID: 9561995 DOI: 10.1016/s0735-1097(98)00031-x] [Citation(s) in RCA: 191] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES The second Primary Angioplasty in Myocardial Infarction (PAMI-II) study evaluated the hypothesis that primary percutaneous transluminal coronary angioplasty (PTCA), with subsequent discharge from the hospital 3 days later, is safe and cost-effective in low risk patients. BACKGROUND In low risk patients with myocardial infarction (MI), few data exist regarding the need for intensive care and noninvasive testing or the appropriate length of hospital stay. METHODS Patients with acute MI underwent emergency catheterization with primary PTCA when appropriate. Low risk patients (age <70 years, left ventricular ejection fraction >45%, one- or two-vessel disease, successful PTCA, no persistent arrhythmias) were randomized to receive accelerated care (admission to a nonintensive care unit and day 3 hospital discharge without noninvasive testing [n = 237] or traditional care [n = 234]). RESULTS Patients who received accelerated care had similar in-hospital outcomes but were discharged 3 days earlier (4.2+/-2.3 vs. 7.1+/-4.7 days, p = 0.0001) and had lower hospital costs ($9,658+/-5,287 vs. $11,604+/-6,125 p = 0.002) than the patients who received traditional care. At 6 months, accelerated and traditional care groups had a similar rate of mortality (0.8% vs. 0.4%, p = 1.00), unstable ischemia (10.1% vs. 12.0%, p = 0.52), reinfarction (0.8% vs. 0.4%, p = 1.00), stroke (0.4% vs. 2.6%, p = 0.07), congestive heart failure (4.6% vs. 4.3%, p = 0.85) or their combined occurrence (15.2% vs. 17.5%, p = 0.49). The study was designed to detect a 10% difference in event rates; at 6 months, only a 2.3% difference was measured between groups, indicating an actual power of 0.19. CONCLUSIONS Early identification of low risk patients with MI allowed safe omission of the intensive care phase and noninvasive testing, and a day 3 hospital discharge strategy, resulting in substantial cost savings.
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Affiliation(s)
- C L Grines
- Division of Cardiology, William Beaumont Hospital, Royal Oak, MI 48073-6769, USA
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Aasted B, Gori K, Dominguez J, Ezquerra A, Bullido R, Arn S, Bianchi A, Binns R, Chu RM, Davis WC, Denham S, Haverson K, Jensen KT, Kim YB, Magyar A, Petersen KR, Saalmüller A, Sachs D, Schütt C, Shimizu M, Stokes C, Whittall T, Yang H, Zuckermann F. Immunoprecipitation studies of monoclonal antibodies submitted to the Second International Swine CD Workshop. Vet Immunol Immunopathol 1998; 60:229-36. [PMID: 9589561 DOI: 10.1016/s0165-2427(97)00099-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- B Aasted
- Department of Veterinary Virology and Immunology, Royal Veterinary University, Frederiksberg, Denmark
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Giangrande I, Yamada K, Germana S, Sachs D, LeGuern C. Tolerant cells infiltrating class I mismatched swine kidney allografts lack the CD4 single positive subset and down regulate TCR gene expression. Transplant Proc 1997; 29:1164. [PMID: 9123254 DOI: 10.1016/s0041-1345(96)00513-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- I Giangrande
- Transplantation Biology Research Center, Massachusetts General Hospital/Harvard Medical School, Boston 02129, USA
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Bartholomew A, Latinne D, Sachs D, Arn JS, Gianello P, Bruyere ML, Sokal G, Squifflet J, Alexandre G, Comerford C, Saidman S, Cosimi A. Utility of xenografts: Lack of correlation between PRA and natural antibodies to swine. Xenotransplantation 1997. [DOI: 10.1111/j.1399-3089.1997.tb00162.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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