The VICC.ORG Directory of Doctors, Healthcare Providers & Researchers
Samuel A. Santoro, M.D. , Ph.D.
Professor and Chair of Pathology
Professor of Biochemistry
VICC Member
Researcher
Contact Information:
Vanderbilt University Medical Center
C-3322 MCN, 1161 21st Ave
Nashville, TN 37232-2561
615-322-3234
Fax: 615-322-5551
Research Specialty
Structure and biology of integrin adhesive receptors for extracellular matrix proteins
Research Description
The molecular mechanisms of cell-substrate adhesion and the biologic roles of cellular adhesion are the foci of our research program. Most of our studies are centered on the alpha 2/beta 1 integrin, a cell surface receptor for collagen that was originally identified and characterized in our laboratory. Current efforts are devoted to elucidation of the structural basis of ligand recognition by the integrin, the structural basis of integrin activation and the roles of the alpha 2/beta 1 and related integrins in complex biological processes such as differentiation, development, wound healing and repair, tumor cell invasion and metastasis, and hemostasis and thrombosis.
Ongoing projects include: 1) elucidation of the structural basis by which the integrin recognizes and binds both collagenous and noncollagenous ligands, 2) elucidation of the structural basis of integrin activation that permits higher affinity binding of some ligands or that is required for the binding of other ligands, 3) exploration of the role of altered integrin expression in the invasive and metastatic behavior of tumor cells, 4) definition of the structural and biologic basis of MMP-1 (matrix metalloproteinase-1) interactions with the integrin and the role of the interaction in regulating cell surface matrix metalloproteinase activity in wound repair and related events, 5) examination of the role of integrin-mediated cell-matrix interactions in the establishment and maintenance of the differentiated epithelial phenotype, and 6) and elucidation of the structural basis and pathbiologic function of the alpha 2/beta 1 integrin as a receptor for echoviruses and reoviruses. In addition, we continue to identify new ligands that implicate the alpha 2/beta 1 integrin in novel facets of biology and pathology.
Our studies combine the application of modern protein and peptide biochemistry, immunochemical and molecular genetic approaches (including knockout mice) to address the fundamental roles and mechanisms of cellular adhesion in complex cell biological processes. .
Publications
- Wright, S, Parham, C, Lee, B, Clarke, D, Auckland, L, Johnston, J, Lawrence, AL, Dickeson, SK, Santoro, SA, Griswold-Prenner, I, Bix, G Perlecan domain V inhibits α2 integrin-mediated amyloid-β neurotoxicity. Neurobiol Aging, 2010.
- Zou, Z, Schmaier, AA, Cheng, L, Mericko, P, Dickeson, SK, Stricker, TP, Santoro, SA, Kahn, ML Negative regulation of activated alpha-2 integrins during thrombopoiesis. Blood, 113(25), 6428-39, 2009.
- Marjoram, RJ, Voss, B, Pan, Y, Dickeson, SK, Zutter, MM, Hamm, HE, Santoro, SA Suboptimal activation of protease-activated receptors enhances alpha2beta1 integrin-mediated platelet adhesion to collagen. J Biol Chem, 284(50), 34640-7, 2009.
- Santoro, SA, Mosse, CA, Young, PP The MD/PhD pathway to a career in laboratory medicine. Clin Lab Med, 27(2), 425-34; abstract ix, 2007.
- Grenache, DG, Zhang, Z, Wells, LE, Santoro, SA, Davidson, JM, Zutter, MM Wound healing in the alpha2beta1 integrin-deficient mouse: altered keratinocyte biology and dysregulated matrix metalloproteinase expression. J Invest Dermatol, 127(2), 455-66, 2007.
- Maginnis, MS, Forrest, JC, Kopecky-Bromberg, SA, Dickeson, SK, Santoro, SA, Zutter, MM, Nemerow, GR, Bergelson, JM, Dermody, TS Beta1 integrin mediates internalization of mammalian reovirus. J Virol, 80(6), 2760-70, 2006.
- Edelson, BT, Stricker, TP, Li, Z, Dickeson, SK, Shepherd, VL, Santoro, SA, Zutter, MM Novel collectin/C1q receptor mediates mast cell activation and innate immunity. Blood, 107(1), 143-50, 2006.
- Sarratt, KL, Chen, H, Zutter, MM, Santoro, SA, Hammer, DA, Kahn, ML GPVI and alpha2beta1 play independent critical roles during platelet adhesion and aggregate formation to collagen under flow. Blood, 106(4), 1268-77, 2005.
- Bix, G, Fu, J, Gonzalez, EM, Macro, L, Barker, A, Campbell, S, Zutter, MM, Santoro, SA, Kim, JK, Höök, M, Reed, CC, Iozzo, RV Endorepellin causes endothelial cell disassembly of actin cytoskeleton and focal adhesions through alpha2beta1 integrin. J Cell Biol, 166(1), 97-109, 2004.
- Wang, Hui, Fu, Weili, Im, Jae Hong, Zhou, Zengyi, Santoro, Samuel A., Iyer, Vandana, DiPersio, C. Mike, Yu, Qian-Chun, Quaranta, Vito, Al-Mehdi, Abu, Muschel, Ruth J. Tumor cell {alpha}3{beta}1 integrin and vascular laminin-5 mediate pulmonary arrest and metastasis. J Cell Biol, 164(6), 935-941, 2004.
- Grenache, David G, Coleman, Trey, Semenkovich, Clay F, Santoro, Samuel A, Zutter, Mary M Alpha2beta1 integrin and development of atherosclerosis in a mouse model: assessment of risk. Arterioscler Thromb Vasc Biol, 23(11), 2104-9, 2003.
- He, Li, Pappan, Loretta K, Grenache, David G, Li, Zhengzhi, Tollefsen, Douglas M, Santoro, Samuel A, Zutter, Mary M The contributions of the {alpha}2{beta}1 integrin to vascular thrombosis in vivo. Blood, 102(), 3652-3657, 2003.
- Chen, Jianchun, Diacovo, Thomas G, Grenache, David G, Santoro, Samuel A, Zutter, Mary M The alpha(2) integrin subunit-deficient mouse: a multifaceted phenotype including defects of branching morphogenesis and hemostasis. Am J Pathol, 161337-44, 2002.
- Ohman, T, King, S L, Krithivas, A, Cunningham, J, Dickeson, S K, Santoro, S A, Bergelson, J M Echoviruses 1 and 8 are closely related genetically, and bind to similar determinants within the VLA-2 I domain. Virus Res, 761-8, 2001.
- Klekotka, P A, Santoro, S A, Ho, A, Dowdy, S F, Zutter, M M Mammary epithelial cell-cycle progression via the alpha(2)beta(1) integrin: unique and synergistic roles of the alpha(2) cytoplasmic domain. Am J Pathol, 159983-92, 2001.
- Dumin, J A, Dickeson, S K, Stricker, T P, Bhattacharyya-Pakrasi, M, Roby, J D, Santoro, S A, Parks, W C Pro-collagenase-1 (matrix metalloproteinase-1) binds the alpha(2)beta(1) integrin upon release from keratinocytes migrating on type I collagen. J Biol Chem, 27629368-74, 2001.
- Klekotka, P A, Santoro, S A, Wang, H, Zutter, M M Specific residues within the alpha 2 integrin subunit cytoplasmic domain regulate migration and cell cycle progression via distinct MAPK pathways. J Biol Chem, 27632353-61, 2001.
- Stricker, T P, Dumin, J A, Dickeson, S K, Chung, L, Nagase, H, Parks, W C, Santoro, S A Structural analysis of the alpha(2) integrin I domain/procollagenase-1 (matrix metalloproteinase-1) interaction. J Biol Chem, 27629375-81, 2001.
- Klekotka, P A, Santoro, S A, Zutter, M M alpha 2 integrin subunit cytoplasmic domain-dependent cellular migration requires p38 MAPK. J Biol Chem, 2769503-11, 2001.
- Keene, D R, San Antonio, J D, Mayne, R, McQuillan, D J, Sarris, G, Santoro, S A, Iozzo, R V Decorin binds near the C terminus of type I collagen. J Biol Chem, 27521801-4, 2000.
- Ding, Q, Gladson, C L, Guidry, C R, Santoro, S A, Dickeson, S K, Shin, J T, Thompson, J A Extracellular FGF-1 inhibits cytoskeletal organization and promotes fibroblast motility. Growth Factors, 1893-107, 2000.
- Wang, H, Gai, Q, Yang, X, Li, Z, Linders, B, Santoro, S A, Zutter, M M Role of the alpha1 and alpha2 integrin cytoplasmic domains in cell morphology, motility and responsiveness to stimulation by the protein kinase C pathway. Cell Adhes Commun, 7281-97, 2000.
- Zutter, M M, Santoro, S A, Wu, J E, Wakatsuki, T, Dickeson, S K, Elson, E L Collagen receptor control of epithelial morphogenesis and cell cycle progression. Am J Pathol, 155927-40, 1999.
- Dickeson, S K, Mathis, N L, Rahman, M, Bergelson, J M, Santoro, S A Determinants of ligand binding specificity of the alpha(1)beta(1) and alpha(2)beta(1) integrins. J Biol Chem, 27432182-91, 1999.
- Hamerski, D A, Santoro, S A, Integrins and the kidney: biology and pathobiology.. Curr Opin Nephrol Hypertens, 89-14, 1999.
- Santoro, S A Platelet surface collagen receptor polymorphisms: variable receptor expression and thrombotic/hemorrhagic risk. Blood, 933575-7, 1999.
- Xu, J, Zutter, M M, Santoro, S A, Clark, R A A three-dimensional collagen lattice activates NF-kappaB in human fibroblasts: role in integrin alpha2 gene expression and tissue remodeling. J Cell Biol, 140(3), 709-19, 1998.
- Bhattacharyya-Pakrasi, M, Dickeson, S K, Santoro, S A, Alpha2beta1 integrin recognition of the carboxyl-terminal propeptide of type I procollagen: integrin recognition and feed-back regulation of matrix biosynthesis are mediated by distinct sequences.. Matrix Biol, 17223-32, 1998.
- Zutter, M M, Sun, H, Santoro, S A Altered integrin expression and the malignant phenotype: the contribution of multiple integrated integrin receptors. J Mammary Gland Biol Neoplasia, 3191-200, 1998.
- Dickeson, S K, Walsh, J J, Santoro, S A, Binding of the alpha 2 integrin I domain to extracellular matrix ligands: structural and mechanistic differences between collagen and laminin binding.. Cell Adhes Commun, 5273-81, 1998.
- Sun, H, Santoro, S A, Zutter, M M Downstream events in mammary gland morphogenesis mediated by reexpression of the alpha2beta1 integrin: the role of the alpha6 and beta4 integrin subunits. Cancer Res, 58(10), 2224-33, 1998.
- Dickeson, S K, Bhattacharyya-Pakrasi, M, Mathis, N L, Schlesinger, P H, Santoro, S A Ligand binding results in divalent cation displacement from the alpha 2 beta 1 integrin I domain: evidence from terbium luminescence spectroscopy. Biochemistry, 37(32), 11280-8, 1998.
- Dickeson, S K, Santoro, S A Ligand recognition by the I domain-containing integrins. Cell Mol Life Sci, 54(6), 556-66, 1998.
- Zutter, M M, Santoro, S A The ups and downs of alpha 2 beta 1-integrin expression: contributions to epithelial cell differentiation and the malignant phenotype. Curr Top Microbiol Immunol, 231167-85, 1998.
- Dickeson, S K, Walsh, J J, Santoro, S A Contributions of the I and EF hand domains to the divalent cation-dependent collagen binding activity of the alpha2beta1 integrin. J Biol Chem, 272(12), 7661-8, 1997.
- Dieckgraefe, B K, Weems, D M, Santoro, S A, Alpers, D H ERK and p38 MAP kinase pathways are mediators of intestinal epithelial wound-induced signal transduction. Biochem Biophys Res Commun, 233(2), 389-94, 1997.
- Windus, D W, Santoro, S A, Atkinson, R, Royal, H D Effects of antiplatelet drugs on dialysis-associated platelet deposition in polytetrafluoroethylene grafts. Am J Kidney Dis, 29(4), 560-4, 1997.
- Despotis, G J, Ikonomakou, S, Levine, V, Joiner-Maier, D, Santoro, S A, Joist, J H Effects of platelets and white blood cells and antiplatelet agent C7E3 (Reopro) on a new test of PAF procoagulant activity of whole blood. Thromb Res, 86(3), 205-19, 1997.
- Despotis, G J, Levine, V, Joist, H, Santoro, S A, Mendeloff, E Multiple episodes of thrombosis with biventricular support devices with inadequate anticoagulation and evidence of accelerated intravascular coagulation. J Thorac Cardiovasc Surg, 113(2), 419-22, 1997.
- Staatz, W D, Walsh, J J, Santoro, S A The alpha 2 beta 1 integrin binds to the CB4 peptide of the alpha 2(I) collagen chain. Biochem Mol Biol Int, 42(3), 577-82, 1997.
- Despotis, G J, Joist, J H, Goodnough, L T, Santoro, S A, Spitznagel, E Whole blood heparin concentration measurements by automated protamine titration agree with plasma anti-Xa measurements. J Thorac Cardiovasc Surg, 113(3), 611-3, 1997.
- Wu, J E, Santoro, S A Differential expression of integrin alpha subunits supports distinct roles during lung branching morphogenesis. Dev Dyn, 206(2), 169-81, 1996.
- Despotis, G J, Levine, V, Filos, K S, Santoro, S A, Joist, J H, Spitznagel, E, Goodnough, L T Evaluation of a new point-of-care test that measures PAF-mediated acceleration of coagulation in cardiac surgical patients. Anesthesiology, 85(6), 1311-23, 1996.
- Despotis, G J, Alsoufiev, A, Hogue, C W, Zoys, T N, Goodnough, L T, Santoro, S A, Kater, K M, Barnes, P, Lappas, D G Evaluation of complete blood count results from a new, on-site hemocytometer compared with a laboratory-based hemocytometer. Crit Care Med, 24(7), 1163-7, 1996.
- Dieckgraefe, B K, Santoro, S A, Alpers, D H Immunolocalization of alpha-integrin subunits and extracellular matrix components during human colonic organogenesis. Gastroenterology, 110(1), 58-71, 1996.
- Despotis, G J, Joist, J H, Hogue, C W, Alsoufiev, A, Joiner-Maier, D, Santoro, S A, Spitznagel, E, Weitz, J I, Goodnough, L T More effective suppression of hemostatic system activation in patients undergoing cardiac surgery by heparin dosing based on heparin blood concentrations rather than ACT. Thromb Haemost, 76(6), 902-8, 1996.
- Xu, J, Zutter, M M, Santoro, S A, Clark, R A PDGF induction of alpha 2 integrin gene expression is mediated by protein kinase C-zeta. J Cell Biol, 134(5), 1301-11, 1996.
- Windus, DW, Atkinson, R, Santoro, S The effects of hemodialysis on platelet activation with new and reprocessed regenerated cellulose dialyzers. Am J Kidney Dis, 27(3), 387-93, 1996.
- Keely, P J, Fong, A M, Zutter, M M, Santoro, S A Alteration of collagen-dependent adhesion, motility, and morphogenesis by the expression of antisense alpha 2 integrin mRNA in mammary cells. J Cell Sci, 108 ( Pt 2)595-607, 1995.
- Despotis, G J, Joist, J H, Joiner-Maier, D, Alsoufiev, A L, Triantafillou, A N, Goodnough, L T, Santoro, S A, Lappas, D G Effect of aprotinin on activated clotting time, whole blood and plasma heparin measurements. Ann Thorac Surg, 59(1), 106-11, 1995.
- Despotis, G J, Hogue, C W, Santoro, S A, Joist, J H, Barnes, P W, Lappas, D G Effect of heparin on whole blood activated partial thromboplastin time using a portable, whole blood coagulation monitor. Crit Care Med, 23(10), 1674-9, 1995.
- Saelman, E U, Keely, P J, Santoro, S A Loss of MDCK cell alpha 2 beta 1 integrin expression results in reduced cyst formation, failure of hepatocyte growth factor/scatter factor-induced branching morphogenesis, and increased apoptosis. J Cell Sci, 108 ( Pt 11)3531-40, 1995.
- Zutter, M M, Santoro, S A, Staatz, W D, Tsung, Y L Re-expression of the alpha 2 beta 1 integrin abrogates the malignant phenotype of breast carcinoma cells. Proc Natl Acad Sci U S A, 92(16), 7411-5, 1995.
- Santoro, S A, Zutter, M M The alpha 2 beta 1 integrin: a collagen receptor on platelets and other cells. Thromb Haemost, 74(3), 813-21, 1995.
- Windus, DW, Santoro, S, Royal, HD The effects of hemodialysis on platelet deposition in prosthetic graft fistulas. Am J Kidney Dis, 26(4), 614-21, 1995.
- Despotis, G J, Joist, J H, Hogue, C W, Alsoufiev, A, Kater, K, Goodnough, L T, Santoro, S A, Spitznagel, E, Rosenblum, M, Lappas, D G The impact of heparin concentration and activated clotting time monitoring on blood conservation. A prospective, randomized evaluation in patients undergoing cardiac operation. J Thorac Cardiovasc Surg, 110(1), 46-54, 1995.
- Keely, P J, Wu, J E, Santoro, S A The spatial and temporal expression of the alpha 2 beta 1 integrin and its ligands, collagen I, collagen IV, and laminin, suggest important roles in mouse mammary morphogenesis. Differentiation, 59(1), 1-13, 1995.
- Santoro, S A, Zutter, M M, Wu, J E, Staatz, W D, Saelman, E U, Keely, P J Analysis of collagen receptors. Methods Enzymol, 245147-83, 1994.
- Santoro, S A Antiphospholipid antibodies and thrombotic predisposition: underlying pathogenetic mechanisms. Blood, 83(9), 2389-91, 1994.
- Despotis, G J, Summerfield, A L, Joist, J H, Goodnough, L T, Santoro, S A, Spitznagel, E, Cox, J L, Lappas, D G Comparison of activated coagulation time and whole blood heparin measurements with laboratory plasma anti-Xa heparin concentration in patients having cardiac operations. J Thorac Cardiovasc Surg, 108(6), 1076-82, 1994.
- Wu, J E, Santoro, S A Complex patterns of expression suggest extensive roles for the alpha 2 beta 1 integrin in murine development. Dev Dyn, 199(4), 292-314, 1994.
- Despotis, G J, Summerfield, A L, Joist, J H, Goodnough, L T, Santoro, S A, Zimmermann, J J, Lappas, D G In vitro reversal of heparin effect with heparinase: evaluation with whole blood prothrombin time and activated partial thromboplastin time in cardiac surgical patients. Anesth Analg, 79(4), 670-4, 1994.
- Choi, ET, Engel, L, Callow, AD, Sun, S, Trachtenberg, J, Santoro, S, Ryan, US Inhibition of neointimal hyperplasia by blocking alpha V beta 3 integrin with a small peptide antagonist GpenGRGDSPCA. J Vasc Surg, 19(1), 125-34, 1994.
- Despotis, G J, Santoro, S A, Spitznagel, E, Kater, K M, Barnes, P, Cox, J L, Lappas, D G On-site prothrombin time, activated partial thromboplastin time, and platelet count. A comparison between whole blood and laboratory assays with coagulation factor analysis in patients presenting for cardiac surgery. Anesthesiology, 80(2), 338-51, 1994.
- Despotis, G J, Santoro, S A, Spitznagel, E, Kater, K M, Cox, J L, Barnes, P, Lappas, D G Prospective evaluation and clinical utility of on-site monitoring of coagulation in patients undergoing cardiac operation. J Thorac Cardiovasc Surg, 107(1), 271-9, 1994.
- Zutter, M M, Santoro, S A, Painter, A S, Tsung, Y L, Gafford, A The human alpha 2 integrin gene promoter. Identification of positive and negative regulatory elements important for cell-type and developmentally restricted gene expression. J Biol Chem, 269(1), 463-9, 1994.
- Fong, A M, Santoro, S A Transcriptional regulation of alpha IIb integrin gene expression during megakaryocytic differentiation of K562 cells. Role of a silencer element. J Biol Chem, 269(28), 18441-7, 1994.
- Zutter, M M, Krigman, H R, Santoro, S A Altered integrin expression in adenocarcinoma of the breast. Analysis by in situ hybridization. Am J Pathol, 142(5), 1439-48, 1993.
- Winters, K J, Walsh, J J, Rubin, B G, Santoro, S A Platelet interactions with fibronectin: divalent cation-independent platelet adhesion to the gelatin-binding domain of fibronectin. Blood, 81(7), 1778-86, 1993.
- Rubin, B G, Santoro, S A, Sicard, G A Platelet interactions with the vessel wall and prosthetic grafts. Ann Vasc Surg, 7(2), 200-7, 1993.
- Pacifici, R, Basilico, C, Roman, J, Zutter, M M, Santoro, S A, McCracken, R Collagen-induced release of interleukin 1 from human blood mononuclear cells. Potentiation by fibronectin binding to the alpha 5 beta 1 integrin. J Clin Invest, 89(1), 61-7, 1992.
- Zutter, M M, Fong, A M, Krigman, H R, Santoro, S A Differential regulation of the alpha 2 beta 1 and alpha IIb beta 3 integrin genes during megakaryocytic differentiation of pluripotential K562 cells. J Biol Chem, 267(28), 20233-8, 1992.
- Burger, S R, Zutter, M M, Sturgill-Koszycki, S, Santoro, S A Induced cell surface expression of functional alpha 2 beta 1 integrin during megakaryocytic differentiation of K562 leukemic cells. Exp Cell Res, 202(1), 28-35, 1992.
- Rubin, B G, McGraw, D J, Sicard, G A, Santoro, S A New RGD analogue inhibits human platelet adhesion and aggregation and eliminates platelet deposition on canine vascular grafts. J Vasc Surg, 15(4), 683-91; discussion 691-2, 1992.
- Hortin, G L, Staatz, W D, Santoro, S A Preparation of soluble peptide libraries: application to studies of platelet adhesion sequences. Biochem Int, 26(4), 731-8, 1992.
- Pacifici, R, Carano, A, Santoro, S A, Rifas, L, Jeffrey, J J, Malone, J D, McCracken, R, Avioli, L V Bone matrix constituents stimulate interleukin-1 release from human blood mononuclear cells. J Clin Invest, 87(1), 221-8, 1991.
- Santoro, S A, Walsh, J J, Staatz, W D, Baranski, K J Distinct determinants on collagen support alpha 2 beta 1 integrin-mediated platelet adhesion and platelet activation. Cell Regul, 2(11), 905-13, 1991.
- Staatz, W D, Fok, K F, Zutter, M M, Adams, S P, Rodriguez, B A, Santoro, S A Identification of a tetrapeptide recognition sequence for the alpha 2 beta 1 integrin in collagen. J Biol Chem, 266(12), 7363-7, 1991.
- Winters, K J, Santoro, S A, Miletich, J P, Eisenberg, P R Relative importance of thrombin compared with plasmin-mediated platelet activation in response to plasminogen activation with streptokinase. Circulation, 84(4), 1552-60, 1991.
- Love, P E, Santoro, S A Antiphospholipid antibodies: anticardiolipin and the lupus anticoagulant in systemic lupus erythematosus (SLE) and in non-SLE disorders. Prevalence and clinical significance. Ann Intern Med, 112(9), 682-98, 1990.
- Zutter, M M, Mazoujian, G, Santoro, S A Decreased expression of integrin adhesive protein receptors in adenocarcinoma of the breast. Am J Pathol, 137(4), 863-70, 1990.
- Winters, K J, Eisenberg, P R, Jaffe, A S, Santoro, S A Dependence of plasmin-mediated degradation of platelet adhesive receptors on temperature and Ca2+. Blood, 76(8), 1546-57, 1990.
- Staatz, W D, Peters, K J, Santoro, S A Divalent cation-dependent structure in the platelet membrane glycoprotein Ia-IIa (VLA-2) complex. Biochem Biophys Res Commun, 168(1), 107-14, 1990.
- Staatz, W D, Walsh, J J, Pexton, T, Santoro, S A The alpha 2 beta 1 integrin cell surface collagen receptor binds to the alpha 1 (I)-CB3 peptide of collagen. J Biol Chem, 265(9), 4778-81, 1990.
- Torr, S R, Winters, K J, Santoro, S A, Sobel, B E The nature of interactions between tissue-type plasminogen activator and platelets. Thromb Res, 59(2), 279-93, 1990.
- Zutter, M M, Santoro, S A Widespread histologic distribution of the alpha 2 beta 1 integrin cell-surface collagen receptor. Am J Pathol, 137(1), 113-20, 1990.
- Hawrylowicz, C M, Santoro, S A, Platt, F M, Unanue, E R Activated platelets express IL-1 activity. J Immunol, 143(12), 4015-8, 1989.
- Santoro, S A Inhibition of platelet adhesion to fibronectin, fibrinogen, and von Willebrand factor substrates by complex gangliosides. Blood, 73(2), 484-9, 1989.
- McGoff, M A, Allen, B T, Der, T, Sicard, G A, Santoro, S A Mechanisms of vascular graft thrombosis: role of altered canine platelet sensitivity to thromboxane. Thromb Res, 55(6), 695-707, 1989.
- Santoro, S A, Lawing, W J Modulation of an RGDS binding site on the platelet membrane glycoprotein IIb-IIIa complex. Biochem Biophys Res Commun, 160(1), 189-95, 1989.
- Staatz, W D, Rajpara, S M, Wayner, E A, Carter, W G, Santoro, S A The membrane glycoprotein Ia-IIa (VLA-2) complex mediates the Mg++-dependent adhesion of platelets to collagen. J Cell Biol, 108(5), 1917-24, 1989.
- Hortin, G L, Tollefsen, D M, Santoro, S A Assessment of interference by heparin cofactor II in the DuPont aca antithrombin-III assay. Am J Clin Pathol, 89(4), 515-7, 1988.
- Bourey, R E, Santoro, S A Interactions of exercise, coagulation, platelets, and fibrinolysis--a brief review. Med Sci Sports Exerc, 20(5), 439-46, 1988.
- Santoro, S A, Rajpara, S M, Staatz, W D, Woods, V L Isolation and characterization of a platelet surface collagen binding complex related to VLA-2. Biochem Biophys Res Commun, 153(1), 217-23, 1988.
- Santoro, S A Molecular basis of platelet adhesion to collagen. Prog Clin Biol Res, 283291-314, 1988.
- Santoro, S A, Lawing, W J Competition for related but nonidentical binding sites on the glycoprotein IIb-IIIa complex by peptides derived from platelet adhesive proteins. Cell, 48(5), 867-73, 1987.
- Santoro, S A, Frazier, W A Isolation and characterization of thrombospondin. Methods Enzymol, 144438-46, 1987.
- Santoro, S A The dualistic mechanisms of platelet adhesion to von Willebrand factor substrates. Exp Cell Res, 173(2), 413-24, 1987.
- Santoro, S A Thrombospondin and the adhesive behavior of platelets. Semin Thromb Hemost, 13(3), 290-7, 1987.
- Santoro, S A Identification of a 160,000 dalton platelet membrane protein that mediates the initial divalent cation-dependent adhesion of platelets to collagen. Cell, 46(6), 913-20, 1986.
- Santoro, S A, Cowan, J F Thrombin enhanced adhesion of platelets to von Willebrand factor substrates. Thromb Res, 43(1), 57-72, 1986.
- Dixit, V M, Haverstick, D M, O''Rourke, K M, Hennessy, S W, Grant, G A, Santoro, S A, Frazier, W A A monoclonal antibody against human thrombospondin inhibits platelet aggregation. Proc Natl Acad Sci U S A, 82(10), 3472-6, 1985.
- Haverstick, D M, Dixit, V M, Grant, G A, Frazier, W A, Santoro, S A Characterization of the platelet agglutinating activity of thrombospondin. Biochemistry, 24(13), 3128-34, 1985.
- Cornelison, G S, Rollins, A, Santoro, S A Duplicate coagulation assays warranted. Am J Clin Pathol, 84(2), 261-2, 1985.
- Dixit, V M, Haverstick, D M, O''Rourke, K M, Hennessy, S W, Grant, G A, Santoro, S A, Frazier, W A Effects of anti-thrombospondin monoclonal antibodies on the agglutination of erythrocytes and fixed, activated platelets by purified thrombospondin. Biochemistry, 24(16), 4270-5, 1985.
- Haverstick, D M, Cowan, J F, Yamada, K M, Santoro, S A Inhibition of platelet adhesion to fibronectin, fibrinogen, and von Willebrand factor substrates by a synthetic tetrapeptide derived from the cell-binding domain of fibronectin. Blood, 66(4), 946-52, 1985.
- Dixit, V M, Haverstick, D M, O''Rourke, K, Hennessy, S W, Broekelmann, T J, McDonald, J A, Grant, G A, Santoro, S A, Frazier, W A Inhibition of platelet aggregation by a monoclonal antibody against human fibronectin. Proc Natl Acad Sci U S A, 82(11), 3844-8, 1985.
- Galvin, N J, Dixit, V M, O''Rourke, K M, Santoro, S A, Grant, G A, Frazier, W A Mapping of epitopes for monoclonal antibodies against human platelet thrombospondin with electron microscopy and high sensitivity amino acid sequencing. J Cell Biol, 101(4), 1434-41, 1985.
- Roberts, D D, Haverstick, D M, Dixit, V M, Frazier, W A, Santoro, S A, Ginsburg, V The platelet glycoprotein thrombospondin binds specifically to sulfated glycolipids. J Biol Chem, 260(16), 9405-11, 1985.
- Dixit, V M, Grant, G A, Santoro, S A, Frazier, W A Isolation and characterization of a heparin-binding domain from the amino terminus of platelet thrombospondin. J Biol Chem, 259(16), 10100-5, 1984.
- Dixit, V M, Grant, G A, Frazier, W A, Santoro, S A Isolation of the fibrinogen-binding region of platelet thrombospondin. Biochem Biophys Res Commun, 119(3), 1075-81, 1984.
- Haverstick, D M, Dixit, V M, Grant, G A, Frazier, W A, Santoro, S A Localization of the hemagglutinating activity of platelet thrombospondin to a 140 000-dalton thermolytic fragment. Biochemistry, 23(23), 5597-603, 1984.
- Santoro, S A, Cowan, J F Mechanism of inhibition by trinitrophenylation of the ristocetin cofactor activity of von Willebrand factor. Biochim Biophys Acta, 797(2), 178-85, 1984.
- Shafer, K E, Santoro, S A, Sobel, B E, Jaffe, A S Monitoring activity of fibrinolytic agents. A therapeutic challenge. Am J Med, 76(5), 879-86, 1984.
- Santoro, S A Differential effects of concanavalin A and succinyl concanavalin A on the macromolecular events of platelet activation. Biochim Biophys Acta, 757(1), 101-10, 1983.
- Santoro, S A Inhibition of platelet aggregation by fibronectin. Biochem Biophys Res Commun, 116(1), 135-40, 1983.
- Santoro, S A Preferential binding of high molecular weight forms of von Willebrand factor to fibrillar collagen. Biochim Biophys Acta, 756(1), 123-6, 1983.
- Santoro, S A, Cowan, J F Adsorption of von Willebrand factor by fibrillar collagen--implications concerning the adhesion of platelets to collagen. Coll Relat Res, 2(1), 31-43, 1982.
- Santoro, S A Amino group modification inhibits ristocetin cofactor activity of human von Willebrand factor. Biochem Biophys Res Commun, 108(2), 479-85, 1982.
- Santoro, S A, Cunningham, L W Platelet-collagen adhesion. Methods Enzymol, 82 Pt A509-13, 1982.
- Santoro, S A Adsorption of von Willebrand factor/factor VIII by the genetically distinct interstitial collagens. Thromb Res, 21(6), 689-91, 1981.
- Santoro, S A, Cunningham, L W Platelet-collagen adhesion-membrane fluidity and the development of high affinity adhesion through multiple interacting sites. Coll Relat Res, 1(6), 517-26, 1981.
- Santoro, S A, Cunningham, L W Collagen-mediated platelet aggregation: the role of multiple interactions between the platelet surface and collagen. Thromb Haemost, 43(2), 158-62, 1980.
- Santoro, S A, Cunningham, L W Fibronectin and the multiple interaction model for platelet-collagen adhesion. Proc Natl Acad Sci U S A, 76(6), 2644-8, 1979.
- Cunningham, LW, Santoro, S, Davies, H Primary hemostasis (collagen-platelet interaction): introduction. Suppl Thromb Haemost, 63205-13, 1978.
- Santoro, S A, Cunningham, L W Collagen-mediated platelet aggregation. Evidence for multivalent interactions of intermediate specificity between collagen and platelets. J Clin Invest, 60(5), 1054-60, 1977.
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