101
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Gelman AE, Okazaki M, Sugimoto S, Li W, Kornfeld CG, Lai J, Richardson SB, Kreisel FH, Huang HJ, Tietjens JR, Zinselmeyer BH, Patterson GA, Miller MJ, Krupnick AS, Kreisel D. CCR2 regulates monocyte recruitment as well as CD4 T1 allorecognition after lung transplantation. Am J Transplant 2010; 10:1189-99. [PMID: 20420631 PMCID: PMC3746750 DOI: 10.1111/j.1600-6143.2010.03101.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Graft rejection remains a formidable problem contributing to poor outcomes after lung transplantation. Blocking chemokine pathways have yielded promising results in some organ transplant systems. Previous clinical studies have demonstrated upregulation of CCR2 ligands following lung transplantation. Moreover, lung injury is attenuated in CCR2-deficient mice in several inflammatory models. In this study, we examined the role of CCR2 in monocyte recruitment and alloimmune responses in a mouse model of vascularized orthotopic lung transplantation. The CCR2 ligand MCP-1 is upregulated in serum and allografts following lung transplantation. CCR2 is critical for the mobilization of monocytes from the bone marrow into the bloodstream and for the accumulation of CD11c(+) cells within lung allografts. A portion of graft-infiltrating recipient CD11c(+) cells expresses both recipient and donor MHC molecules. Two-photon imaging demonstrates that recipient CD11c(+) cells are associated with recipient T cells within the graft. While recipient CCR2 deficiency does not prevent acute lung rejection and is associated with increased graft infiltration by T cells, it significantly reduces CD4(+) T(h)1 indirect and direct allorecognition. Thus, CCR2 may be a potential target to attenuate alloimmune responses after lung transplantation.
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102
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Lai J, Zindl C, Atkinson T, Chaplin D. Phagosome Maturation in the Macrophage Response to Mycoplasma pneumoniae Requires MyD88. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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103
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Zhu Y, Huo Z, Lai J, Li S, Jiao H, Dang J, Jin C. Case-control study of a HLA-G 14-bp insertion-deletion polymorphism in women with recurrent miscarriages. Scand J Immunol 2010; 71:52-4. [PMID: 20017810 DOI: 10.1111/j.1365-3083.2009.02348.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Human leucocyte antigen (HLA)-G is an important molecule for maintaining an immunotolerant foetal-maternal relationship. A 14-bp insertion (+14-bp)/deletion (-14-bp) polymorphism in exon 8 of the 3' untranslated region of the HLA-G gene has been proposed to be associated with HLA-G mRNA stability and the expression of HLA-G. This might play an immunomodulatory role in human pregnancy. In this study, a total of 526 Chinese women were genotyped for the +14-bp/-14-bp polymorphism, including 137 who had recurrent miscarriages (three miscarriages: 86, four or more miscarriages: 51), 138 women who had experienced two abortions and 251 women with normal fertility as controls. The +14-bp homozygote sequence was more prominent among those with recurrent miscarriages (three or more recurrent miscarriages) in contrast to fertile control women. Significant difference was observed in the distribution of +14-bp/+14-bp genotype between controls and the recurrent abortions group with four or more abortions. A 14-bp insertion/deletion polymorphism in exon 8 has a possible role in HLA-G expression in certain cases of recurrent miscarriage. However, additional studies are needed in this regard.
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104
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Kam MH, Wong DC, Siu S, Stevenson ARL, Lai J, Phillips GE. Comparison of magnetic resonance imaging–fluorodeoxy- glucose positron emission tomography fusion with pathological staging in rectal cancer. Br J Surg 2009; 97:266-8. [DOI: 10.1002/bjs.6866] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Abstract
Background
This study represents an initial experience with combined magnetic resonance imaging (MRI) and [18F]fluorodeoxyglucose positron emission tomography (FDG PET) (MRI–PET fusion) in the primary staging of rectal carcinoma.
Methods
A retrospective analysis of data recorded on patients with rectal cancer was undertaken. Patients requiring long-course radiotherapy were excluded. Chest radiography, abdominal computed tomography and endorectal ultrasonography were performed. In addition, MRI of the pelvis, whole-body FDG PET and MRI–PET fusion were carried out. All patients subsequently underwent anterior resection.
Results
Twenty-three patients with rectal carcinoma (15 men), of median age 60 (range 46–75) years, were enrolled. In tumour (T) assessment, MRI correctly staged 14 of 22 T2/T3 tumours. In lymph node assessment, MRI–PET fusion had a sensitivity of 44 per cent, with a specificity and positive predictive value of 100 per cent. No additional information was acquired from MRI–PET fusion over MRI plus abdominal computed tomography and chest radiography.
Conclusion
MRI–PET fusion adds little to conventional investigations for staging rectal carcinoma.
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105
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Okazaki M, Sugimoto S, Lai J, Kornfeld CG, Hotchkiss RS, Richardson SB, Li W, Kreisel FH, Huang HJ, Patterson GA, Krupnick AS, Gelman AE, Kreisel D. Costimulatory blockade-mediated lung allograft acceptance is abrogated by overexpression of Bcl-2 in the recipient. Transplant Proc 2009; 41:385-7. [PMID: 19249562 DOI: 10.1016/j.transproceed.2008.10.068] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2008] [Accepted: 10/06/2008] [Indexed: 11/29/2022]
Abstract
Lung allografts are considered to be more immunogenic than other solid organs. Little is known about the effectiveness of immunosuppressive regimens after lung transplantation. Herein, we describe a novel model of murine vascularized orthotopic lung transplantation we used to study the effects of costimulatory blockade on lung rejection. Transplants were performed in the Balb --> B6 strain combination. Recipients were either not immunosuppressed or received perioperative CD40/CD40L and CD28/B7 costimulatory blockade. Nonimmunosupressed Balb/c --> B6 lung transplants had severe acute rejection 7 days after transplantation and CD8(+) T cells outnumbered CD4(+) T cells within the allografts. Alternatively, B6 recipients that received perioperative costimulatory blockade had minimal inflammation and there were nearly equal numbers of CD8(+) and CD4(+) T cells in these grafts. Approximately one third of graft-infiltrating CD4(+) T cells expressed Foxp3. CD4(+) T cells isolated from these grafts induced apoptosis of alloreactive CD8(+) T cells that were stimulated with donor splenocytes in vitro. In contrast with wild-type B6 recipient mice, we observed severe rejection of Balb/c lungs 7 days after transplantation into Bcl-2 transgenic B6 recipients that had received costimulatory blockade. CD8(+) T cells outnumbered CD4(+) T cells in these immunosuppressed Bcl-2 transgenic recipients and, compared with immunosuppressed wild-type B6 recipients, a lower percentage of graft-infiltrating CD4(+) T cells expressed Foxp3, and a higher percentage of graft-infiltrating CD8(+) T cells expressed intereferon-gamma. Thus, our results show that perioperative blockade of the CD40/CD40L and CD28/B7 costimulatory pathways markedly ameliorates acute rejection of lung allografts in wild type but not Bcl-2 transgenic recipients.
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106
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Sugimoto S, Lin X, Okazaki M, Lai J, Tietjens JR, Huang H, Patterson GA, Krupnick AS, Kreisel D, Gelman AE. Monocyte differentiation is controlled by MyD88 after mouse orthotopic lung transplantation. Transplant Proc 2009; 41:388-90. [PMID: 19249563 DOI: 10.1016/j.transproceed.2008.09.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2008] [Accepted: 09/18/2008] [Indexed: 12/24/2022]
Abstract
In lung grafts, ischemia-reperfusion signals rapidly induce the recruitment and differentiation of host monocytes into macrophages and dendritic cells. The nature of ischemia-reperfusion signals are antigen independent, but have been hypothesized to initiate Toll-like receptor (TLR) and interleukin (IL)-1R-mediated signaling pathways that are thought to potentiate alloimmune responses. We wondered whether MyD88, an adaptor molecule critical for both TLR and IL-1R-mediated inflammatory responses, regulated monocyte differentiation in a mouse model of vascularized orthotopic lung transplantation. Orthotopic left lung transplants were performed in the following syngeneic combinations: CD45.1(+) B6 --> CD45.2(+) MyD88(-/-) and CD45.1(+) B6 --> CD45.2(+) B6. One day later, recipient-derived dendritic cells and macrophage numbers were assessed in the bronchiolar lavage by FACS analysis. Compared with the bronchiolar lavage of wildtype recipients, MyD88(-/-) recipients had lower numbers of dendritic cells in lung graft airways that were of recipient origin. Lower numbers of newly differentiated lung graft dendritic cells was coincident with the appearance of higher numbers of undifferentiated monocytes in the lung airways of MyD88(-/-) recipients as compared with wild-type recipients. Moreover, adoptive transfer experiments demonstrated that MyD88(-/-) monocytes were poorer at differentiating into lung dendritic cells as compared with wild-type monocytes. Taken together, these data show that MyD88 regulates graft-infiltrating monocyte differentiation and suggests a mechanism by which TLR/IL-1R-signaling pathways control adaptive responses in lung allografts through controlling monocyte fate.
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107
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Deshane J, Zmijewski J, Spell M, Lai J, Abraham E, Chaplin D. Myeloid-Derived Regulatory Cells in Allergic Airway Inflammation. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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108
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Sugimoto S, Lai J, Li W, Okazaki M, Kornfeld C, Richardson S, Kreisel F, Patterson G, Krupnick A, Gelman A, Kreisel D. 209. Acute Lung Allograft Rejection is Independent of CD8+ T Cells. J Surg Res 2009. [DOI: 10.1016/j.jss.2008.11.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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109
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Okazaki M, Li W, Lai J, Sugimoto S, Kornfeld C, Kreisel F, Lin X, Patterson G, Krupnick A, Gelman A, Kreisel D. 137: OX40 Triggering Breaks Costimulation Blockade-Mediated Lung Allograft Acceptance. J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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110
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Lai J, Maibach H. Experimental Models in Predicting Topical Antifungal Efficacy: Practical Aspects and Challenges. Skin Pharmacol Physiol 2009; 22:231-9. [DOI: 10.1159/000235827] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2008] [Accepted: 05/19/2009] [Indexed: 11/19/2022]
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111
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Lai J, Adriano D, Fragassi S, Pivetta E, Fabbri M, Baldi U, Decastelli L. DETECTION OF ALLERGENS IN MEAT PRODUCTS: MONITORING DURING THE YEAR 2007. Ital J Food Saf 2008. [DOI: 10.4081/ijfs.2008.2.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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112
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Chien J, Narita K, Rattan R, Giri S, Shridhar R, Staub J, Beleford D, Lai J, Roberts LR, Molina J, Kaufmann SH, Prendergast GC, Shridhar V. A role for candidate tumor-suppressor gene TCEAL7 in the regulation of c-Myc activity, cyclin D1 levels and cellular transformation. Oncogene 2008; 27:7223-34. [PMID: 18806825 DOI: 10.1038/onc.2008.360] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The pathophysiological mechanisms that drive the development and progression of epithelial ovarian cancer remain obscure. Recently, we identified TCEAL7 as a transcriptional regulatory protein often downregulated in epithelial ovarian cancer. However, the biological significance of such downregulation in cancer is not currently known. Here, we show that TCEAL7 is downregulated frequently in many human cancers and that in immortalized human ovarian epithelial cells this event promotes anchorage-independent cell growth. Mechanistic investigations revealed that TCEAL7 associates with cyclin D1 promoter containing Myc E-box sequence and transcriptionally represses cyclin D1 expression. Moreover, downregulation of TCEAL7 promotes DNA-binding activity of Myc-Max, and upregulates the promoter activity of c-Myc-target gene, ornithine decarboxylase (ODC), whereas enhanced expression of TCEAL7 inhibits Myc-induced promoter activity of ODC. Our findings suggest that TCEAL7 may restrict ovarian epithelial cell transformation by limiting Myc activity. These results also suggest a potential, alternative mechanism by which c-Myc activity may be deregulated in cancer by the downregulation of TCEAL7.
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113
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Nixon C, MacLennan N, Lai J, Feberwee H, KIng J, Frith R. 530. Neural Complications Following Ultrasound Guided Peripheral Nerve Blockade. Reg Anesth Pain Med 2008. [DOI: 10.1136/rapm-00115550-200809001-00129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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114
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Gore J, Lai J, Litwin MS, Saigal CS. Access to care for stage 2 transitional cell carcinoma of the bladder. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.17568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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115
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Cella D, Lai J, Garcia SF, Reeve BB, Weinfurt KP, George J, Stone A. The patient reported outcomes measurement information system—Cancer (PROMIS-Ca): Cancer-specific application of a generic fatigue measure. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.6537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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116
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Corm S, Micol J, Leroyer A, Daudignon A, Preudhomme C, Poulain S, Bregman B, Oukessou A, Lai J, Facon T. Kinetic of chronic myeloid leukaemia (CML) prevalence in Northern France since the introduction of imatinib. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.7088] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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117
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Okazaki M, Sugimoto S, Lai J, Kornfeld C, Tietjens J, Huang H, Richardon S, Patterson A, Krupnick A, Gelman A, Kreisel D. 130: Costimulatory Blockade Leads to Accumulation of Antigen-Specific CD4+Foxp3+ Regulatory T Cells in Vascularized Mouse Lung Allografts and Prevents Their Acute Rejection. J Heart Lung Transplant 2008. [DOI: 10.1016/j.healun.2007.11.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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118
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Okazaki M, Sugimoto S, Lai J, Kornfeld C, Tietjens J, Richardson S, Huang H, Patterson A, Krupnick A, Gelman A, Kreisel D. 30: CCR2 Is Required for Monocyte Recruitment and Differentiation but Not Acute Rejection of Vascularized Mouse Lung Allografts. J Heart Lung Transplant 2008. [DOI: 10.1016/j.healun.2007.11.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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119
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Huang H, Sugimoto S, Lai J, Das N, Okazaki M, Patterson G, Kreisel D, Gelman A. 28: Maintenance of Canonical I-κB Kinase Activity Is Required To Prevent Lung Graft Injury. J Heart Lung Transplant 2008. [DOI: 10.1016/j.healun.2007.11.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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120
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Levin NJ, Leedom TA, Doppalapudi VR, Li L, Lai J, Johnson K, Rizzo JD, Lappe RW, Bradshaw CW, Woodnutt G. CVX-045: A novel thrombospondin-1 (TSP-1) mimetic CovX-Body that potentiates chemotherapy in preclinical colon cancer models. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.14011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
14011 Background: TSP-1 reduces angiogenesis and tumor growth in vivo, and induces endothelial cell apoptosis in vitro. CVX-045 was produced by fusing a peptide derived from TSP-1, known to have anti-vascular activity, to a proprietary monoclonal antibody. CVX-045 possesses the potency and specificity of the TSP-1 mimetic peptide, along with the advantageous PK of an antibody. Methods: Anti-tumor activity of CVX-045 was evaluated in A549, A431, and HT-29 human adenocarcinoma xenograft models. Cells were implanted SC in female nu/nu mice, and tumors were staged to 300–400 mm3 prior to initiation of weekly treatments: CVX-045 IV 10–30 mg/kg; 5-FU or CPT-11 IP 100 mg/kg. Results: CVX-045 (10 mg/kg) significantly reduced A549 and A431 tumor growth 73% (day 49) and 51% (day 22), respectively, but was not effective in the HT-29 xenograft (10 or 30 mg/kg). CVX-045 demonstrated significant anti-vascular activity, reducing tumor microvessel density 51% in A549, 49% in A431, and 36% in HT-29 xenografts. CVX-045 (30 mg/kg) plus 5- FU significantly decreased HT-29 tumor growth 70% and microvessel density 61.2% on day 30 (both P<0.01), effects significantly greater than either agent alone. Co-treatment with CVX-045 (30 mg/kg) plus CPT-11 decreased HT-29 tumor volume 91% on day 28 (P<0.001), also significantly greater than either agent alone. As a surrogate measurement of survival, mice remained on treatment until tumors reached 2000 mm3. CPT-11 alone extended the time to reach tumor load from day 28 to day 39, while the combination of CPT-11 with CVX-045 extended this further to day 60. Conclusions: CVX-045 exhibits significant anti-angiogenic activity in several tumor models and enhances anti-tumor activity in combination with standard chemotherapies in a highly aggressive colon tumor model. No significant financial relationships to disclose.
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121
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Krupnick A, Okazaki M, Das N, Lai J, Tung T, Richardson S, Gelman A, Patterson G, Kreisel D. 163: The feasibility of diaphragmatic transplantation in a canine model: Novel potential therapy for treatment of Duchenne muscular dystrophy-associated respiratory failure. J Heart Lung Transplant 2007. [DOI: 10.1016/j.healun.2006.11.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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122
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Okazaki M, Krupnick A, Kornfeld C, Lai J, Richardson S, Ritter J, Patterson G, Gelman A, Kreisel D. 350: CD4 T lymphocytes are not necessary for the acute rejection of vascularized orthotopic allogeneic mouse lung transplants. J Heart Lung Transplant 2007. [DOI: 10.1016/j.healun.2006.11.370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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123
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Lai J, Zindl C, Jung Y, Duffy L, Atkinson T, Chaplin D. Regulatory Role for Gr-1+ Cells and CD11b+ Cells in Lungs of Mice. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.11.549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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124
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Chaplin D, Zindl C, Duffy L, Atkinson T, Lai J. Clearance of Mycoplasma Pneumoniae Is Impaired in Mice with Established Allergic Airway Inflammation. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.11.647] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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125
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