Experimental models of immunological glomerular diseases and autoimmunity resembling those seen in man are used to obtain a fundamental understanding of the immunopathogenetic mechanisms of injury.
Antibody-mediated podocyte injury
The primary focus of the Salant laboratory is on the immune basis of glomerular diseases with particular regard to the humoral mechanisms of glomerular cell injury. Current work will elucidate the mechanisms by which antibodies alter the function and morphology of glomerular visceral epithelial cells (podocytes).
1. We have identified the target antigen in human membranous nephropathy as the phospholipase A2 receptor (PLA2R) and shown that about 75% of patients have circulating ant-PLA2R autoantibodies. Current work is directed at defining the mechanisms of podocyte injury induced by anti-PLA2R using a combination of in vitro, in vivo and human genetic techniques. Additional studies will explore the role of anti-PLA2R in the development of recurrent membranous nephropathy post renal transplantation.
2. Ongoing interests include the role of podocyte-specific antibodies, and the effects of complement-mediated injury on podocyte structure, composition of the filtration slit diaphragm and its attachment to the cytoskeleton, and on cell-matrix adhesion using animal models, cell biological and immunochemical methodologies.
Mechanisms of post-inflammatory renal fibrogenesis
We have also developed a murine model of antibody-dependent rapidly progressive glomerulonephritis in which necrotizing and crescentic glomerulonephritis is associated with the activation of chemokine and interstitial-type collagen genes, followed by the development of interstitial fibrosis and renal failure. Since interstitial fibrosis and tubular atrophy are common to all forms of chronic progressive renal diseases and are the most reliable pathological indicators of an adverse long-term prognosis in humans, this mouse model in which the onset of immune injury is rapidly followed (within 5 days) by the induction and proliferation of interstitial cells expressing high levels of mRNA for type I collagen affords a unique opportunity to study the mechanisms of post-inflammatory renal fibrogenesis
- Section Chief of Medicine in Nephrology, Nephrology, Medicine, Boston University School of Medicine
- Professor, Pathology & Laboratory Medicine, Boston University School of Medicine
- Graduate Faculty (Primary Mentor of Grad Students), Boston University School of Medicine, Graduate Medical Sciences
- Active Staff Privileges, Nephrology, Medicine, Boston Medical Center
- University of the Witwatersrand, MBBCh
- Published on 5/9/2019
Belghasem ME, A'amar O, Roth D, Walker J, Arinze N, Richards SM, Francis JM, Salant DJ, Chitalia VC, Bigio IJ. Towards minimally-invasive, quantitative assessment of chronic kidney disease using optical spectroscopy. Sci Rep. 2019 May 09; 9(1):7168. PMID: 31073168.
- Published on 1/1/2019
Salant DJ. Unmet challenges in membranous nephropathy. Curr Opin Nephrol Hypertens. 2019 01; 28(1):70-76. PMID: 30451735.
- Published on 12/3/2018
Kasinath V, Yilmam OA, Uehara M, Jiang L, Ordikhani F, Li X, Salant DJ, Abdi R. Activation of fibroblastic reticular cells in kidney lymph node during crescentic glomerulonephritis. Kidney Int. 2019 Feb; 95(2):310-320. PMID: 30522766.
- Published on 11/1/2018
Beck LH, Salant DJ. Deep pockets are not necessarily a good thing in membranous nephropathy: evidence for a modifier allele. Kidney Int. 2018 11; 94(5):855-857. PMID: 30348302.
- Published on 6/21/2018
Estrada CC, Paladugu P, Guo Y, Pace J, Revelo MP, Salant DJ, Shankland SJ, D'Agati VD, Mehrotra A, Cardona S, Bialkowska AB, Yang VW, He JC, Mallipattu SK. Krüppel-like factor 4 is a negative regulator of STAT3-induced glomerular epithelial cell proliferation. JCI Insight. 2018 Jun 21; 3(12). PMID: 29925693.
- Published on 5/23/2018
Caster DJ, Korte EA, Tan M, Barati MT, Tandon S, Creed TM, Salant DJ, Hata JL, Epstein PN, Huang H, Powell DW, McLeish KR. Neutrophil exocytosis induces podocyte cytoskeletal reorganization and proteinuria in experimental glomerulonephritis. Am J Physiol Renal Physiol. 2018 Sep 01; 315(3):F595-F606. PMID: 29790391.
- Published on 1/11/2018
Kolachalama VB, Singh P, Lin CQ, Mun D, Belghasem ME, Henderson JM, Francis JM, Salant DJ, Chitalia VC. Association of Pathological Fibrosis With Renal Survival Using Deep Neural Networks. Kidney Int Rep. 2018 Mar; 3(2):464-475. PMID: 29725651.
- Published on 10/26/2017
Larsen CP, Trivin-Avillach C, Coles P, Collins AB, Merchant M, Ma H, Wilkey DW, Ambruzs JM, Messias NC, Cossey LN, Rosales IA, Wooldridge T, Walker PD, Colvin RB, Klein J, Salant DJ, Beck LH. LDL Receptor-Related Protein 2 (Megalin) as a Target Antigen in Human Kidney Anti-Brush Border Antibody Disease. J Am Soc Nephrol. 2018 Feb; 29(2):644-653. PMID: 29074737.
- Published on 9/19/2017
Korte EA, Caster DJ, Barati MT, Tan M, Zheng S, Berthier CC, Brosius FC, Vieyra MB, Sheehan RM, Kosiewicz M, Wysoczynski M, Gaffney PM, Salant DJ, McLeish KR, Powell DW. ABIN1 Determines Severity of Glomerulonephritis via Activation of Intrinsic Glomerular Inflammation. Am J Pathol. 2017 Dec; 187(12):2799-2810. PMID: 28935578.
- Published on 8/19/2017
Al-Rabadi L, Quillen K, Shashar M, Al Marji C, Jaberi A, Chitalia V, Henderson J, Salant D, Beck LH. Concurrent Presentation of Thrombotic Thrombocytopenic Purpura and Membranous Nephropathy. Kidney Int Rep. 2018 Mar; 3(2):476-481. PMID: 29725652.
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