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Steven R. Houser, PhD, FAHAsteven r houser, phd, faha


Senior Associate Dean for Research

Chair, Department of Physiology

Director, Cardiovascular Research Center

Laura H. Carnell Professor of Physiology

Professor, Medicine

Telephone: 215-707-3278

Fax: 215-707-0170

Office: MERB 1041

Email: srhouser@temple.edu


Dean's Staff

Department of Physiology

Cardiovascular Research Center


Educational Background:



BA, Biology and Chemistry, Eastern College 


PhD, Physiology, Temple University School of Medicine


Postdoctoral Fellowship, Cardiology, Temple University School of Medicine

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Research Interests:


The research in the Houser laboratory is focused on those processes that maintain the electrical and contractile properties of the normal heart and the defects in these processes that lead to electrical instability (arrhythmias and sudden death) and poor cardiac pump performance congestive heart failure). We are currently continuing our studies of the determinants of cellular electrical and mechanical defects in diseased cardiac myocytes. In addition, we are exploring the idea that a major factor that determines the overall state of cardiac myocyte function is a balance between new myocyte formation (cardiac regeneration) and programmed myocyte death (apoptosis).


Our cell physiology studies are exploring the idea that activation of Ca2+ dependent signaling pathways (mainly through CAMKII) regulate Ca2+ handling proteins in diseased myocytes. We have developed techniques in live cells to track Ca2+ dependent activation of NFAT and are characterizing the associated alterations in cell function. These studies are being performed in collaboration with Dr. Jeffrey Molkentin at the University of Cincinnati. The second and third areas of new research are centered on the new idea that there is myocyte turnover in the adult heart. Therefore, we are studying the factors that regulate cell death (mainly through apoptosis, with Dr. Richard Kitsis) and new myocyte formation (via cardiac progenitor cells, with Drs Annarosa Leri and Piero Anversa). We have identified cardiac stem/progenitor cells in feline and human hearts and plan for a rapid expansion of this novel (and controversial) area. We will specifically explore the hypothesis that hypertrophy in response to pressure overload involves new myocyte formation in addition to enlargement of terminally differentiated myocytes. Our newest data shows that expression of T-type Ca2+ channels is linked to differentiation of cardiac stem cells into new cardiac myocytes. Ca2+ influx through these channels also appears to be linked to proliferation of new myocytes.


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Recent Medically Related Publications, Obtained from PubMed (Click on PubMed ID to view abstract)

25684108. Taghavi S, Sharp TE 3rd, Duran JM, Makarewich CA, Berretta RM, Starosta T, Kubo H, Barbe M, Houser SR, Autologous c-Kit+ Mesenchymal Stem Cell Injections Provide Superior Therapeutic Benefit as Compared to c-Kit+ Cardiac-Derived Stem Cells in a Feline Model of Isoproterenol-Induced Cardiomyopathy. Clin Transl Sci :()2015 Feb 11

25600142. McCormick ME, Collins C, Makarewich CA, Chen Z, Rojas M, Willis MS, Houser SR, Tzima E, Platelet endothelial cell adhesion molecule-1 mediates endothelial-cardiomyocyte communication and regulates cardiac function. J Am Heart Assoc 4:1(e001210)2015 Jan 19

25595735. Roof SR, Ho HT, Little SC, Ostler JE, Brundage EA, Periasamy M, Villamena FA, Gy÷rke S, Biesiadecki BJ, Heymes C, Houser SR, Davis JP, Ziolo MT, Obligatory role of neuronal nitric oxide synthase in the heart's antioxidant adaptation with exercise. J Mol Cell Cardiol 81C:(54-61)2015 Jan 14

25480109. Trappanese DM, Liu Y, McCormick RC, Cannavo A, Nanayakkara G, Baskharoun MM, Jarrett H, Woitek FJ, Tillson DM, Dillon AR, Recchia FA, Balligand JL, Houser SR, Koch WJ, Dell'Italia LJ, Tsai EJ, Chronic ▀1-adrenergic blockade enhances myocardial ▀3-adrenergic coupling with nitric oxide-cGMP signaling in a canine model of chronic volume overload: new insight into mechanisms of cardiac benefit with selective ▀1-blocker therapy. Basic Res Cardiol 110:1(456)2015 Jan

25411155. Benjamin I, Brown N, Burke G, Correa A, Houser SR, Jones DW, Loscalzo J, Vasan RS, Whitman GR, American Heart Association cardiovascular genome-phenome study: foundational basis and program. Circulation 131:1(100-12)2015 Jan 6

25332207. Hullmann JE, Grisanti LA, Makarewich CA, Gao E, Gold JI, Chuprun JK, Tilley DG, Houser SR, Koch WJ, GRK5-mediated exacerbation of pathological cardiac hypertrophy involves facilitation of nuclear NFAT activity. Circ Res 115:12(976-85)2014 Dec 5

25205804. Tilley DG, Zhu W, Myers VD, Barr LA, Gao E, Li X, Song J, Carter RL, Makarewich CA, Yu D, Troupes CD, Grisanti LA, Coleman RC, Koch WJ, Houser SR, Cheung JY, Feldman AM, ▀-adrenergic receptor-mediated cardiac contractility is inhibited via vasopressin type 1A-receptor-dependent signaling. Circulation 130:20(1800-11)2014 Nov 11

25077561. Doonan PJ, Chandramoorthy HC, Hoffman NE, Zhang X, Cßrdenas C, Shanmughapriya S, Rajan S, Vallem S, Chen X, Foskett JK, Cheung JY, Houser SR, Madesh M, LETM1-dependent mitochondrial Ca2+ flux modulates cellular bioenergetics and proliferation. FASEB J 28:11(4936-49)2014 Nov

25047165. Makarewich CA, Zhang H, Davis J, Correll RN, Trappanese DM, Hoffman NE, Troupes CD, Berretta RM, Kubo H, Madesh M, Chen X, Gao E, Molkentin JD, Houser SR, Transient receptor potential channels contribute to pathological structural and functional remodeling after myocardial infarction. Circ Res 115:6(567-80)2014 Aug 29

24977749. Taghavi S, Jayarajan SN, Ferrer LM, Vora H, McKee C, Milner RE, Gaughan JP, Dujon J, Sjoholm LO, Pathak A, Rappold JF, Santora TA, Houser SR, Goldberg AJ, "Permissive hypoventilation" in a swine model of hemorrhagic shock. J Trauma Acute Care Surg 77:1(14-9)2014 Jul

24935962. Anderson ME, Goldhaber J, Houser SR, Puceat M, Sussman MA, Embryonic stem cell-derived cardiac myocytes are not ready for human trials. Circ Res 115:3(335-8)2014 Jul 18

24931551. Barr LA, Makarewich CA, Berretta RM, Gao H, Troupes CD, Woitek F, Recchia F, Kubo H, Force T, Houser SR, Imatinib activates pathological hypertrophy by altering myocyte calcium regulation. Clin Transl Sci 7:5(360-7)2014 Oct

24855152. Mitacchione G, Powers JC, Grifoni G, Woitek F, Lam A, Ly L, Settanni F, Makarewich CA, McCormick R, Trovato L, Houser SR, Granata R, Recchia FA, The gut hormone ghrelin partially reverses energy substrate metabolic alterations in the failing heart. Circ Heart Fail 7:4(643-51)2014 Jul

24723657. Houser SR, Role of RyR2 phosphorylation in heart failure and arrhythmias: protein kinase A-mediated hyperphosphorylation of the ryanodine receptor at serine 2808 does not alter cardiac contractility or cause heart failure and arrhythmias. Circ Res 114:8(1320-7; discussion 1327)2014 Apr 11

24718482. Duran JM, Makarewich CA, Trappanese D, Gross P, Husain S, Dunn J, Lal H, Sharp TE, Starosta T, Vagnozzi RJ, Berretta RM, Barbe M, Yu D, Gao E, Kubo H, Force T, Houser SR, Sorafenib cardiotoxicity increases mortality after myocardial infarction. Circ Res 114:11(1700-12)2014 May 23

24703919. Tong CW, Ahmad T, Brittain EL, Bunch TJ, Damp JB, Dardas T, Hijar A, Hill JA, Hilliard AA, Houser SR, Jahangir E, Kates AM, Kim D, Lindman BR, Ryan JJ, Rzeszut AK, Sivaram CA, Valente AM, Freeman AM, Challenges facing early career academic cardiologists. J Am Coll Cardiol 63:21(2199-208)2014 Jun 3

24583314. Rafiq K, Kolpakov MA, Seqqat R, Guo J, Guo X, Qi Z, Yu D, Mohapatra B, Zutshi N, An W, Band H, Sanjay A, Houser SR, Sabri A, c-Cbl inhibition improves cardiac function and survival in response to myocardial ischemia. Circulation 129:20(2031-43)2014 May 20

24566221. Grisanti LA, Talarico JA, Carter RL, Yu JE, Repas AA, Radcliffe SW, Tang HA, Makarewich CA, Houser SR, Tilley DG, ▀-Adrenergic receptor-mediated transactivation of epidermal growth factor receptor decreases cardiomyocyte apoptosis through differential subcellular activation of ERK1/2 and Akt. J Mol Cell Cardiol 72:(39-51)2014 Jul

24115067. Molkentin JD, Houser SR, Are resident c-Kit+ cardiac stem cells really all that are needed to mend a broken heart? Circ Res 113:9(1037-9)2013 Oct 12

23801066. Duran JM, Makarewich CA, Sharp TE, Starosta T, Zhu F, Hoffman NE, Chiba Y, Madesh M, Berretta RM, Kubo H, Houser SR, Bone-derived stem cells repair the heart after myocardial infarction through transdifferentiation and paracrine signaling mechanisms. Circ Res 113:5(539-52)2013 Aug 16

23743021. Wang F, Gao H, Kubo H, Fan X, Zhang H, Berretta R, Chen X, Sharp T, Starosta T, Makarewich C, Li Y, Molkentin JD, Houser SR, T-type Ca▓? channels regulate the exit of cardiac myocytes from the cell cycle after birth. J Mol Cell Cardiol 62:(122-30)2013 Sep

23609274. Taghavi S, Jayarajan SN, Khoche S, Duran JM, Cruz-Schiavone GE, Milner RE, Holt-Bright L, Gaughan JP, Rappold JF, Sjoholm LO, Dujon J, Pathak A, Santora TA, Houser SR, Goldberg AJ, Examining prehospital intubation for penetrating trauma in a swine hemorrhagic shock model. J Trauma Acute Care Surg 74:5(1246-51)2013 May

23348743. Gandhirajan RK, Meng S, Chandramoorthy HC, Mallilankaraman K, Mancarella S, Gao H, Razmpour R, Yang XF, Houser SR, Chen J, Koch WJ, Wang H, Soboloff J, Gill DL, Madesh M, Blockade of NOX2 and STIM1 signaling limits lipopolysaccharide-induced vascular inflammation. J Clin Invest 123:2(887-902)2013 Feb

23159931. Mancarella S, Potireddy S, Wang Y, Gao H, Gandhirajan RK, Autieri M, Scalia R, Cheng Z, Wang H, Madesh M, Houser SR, Gill DL, Targeted STIM deletion impairs calcium homeostasis, NFAT activation, and growth of smooth muscle. FASEB J 27:3(893-906)2013 Mar

23067355. Duran JM, Taghavi S, Berretta RM, Makarewich CA, Sharp Iii T, Starosta T, Udeshi F, George JC, Kubo H, Houser SR, A characterization and targeting of the infarct border zone in a swine model of myocardial infarction. Clin Transl Sci 5:5(416-21)2012 Oct

22921230. Gao H, Wang F, Wang W, Makarewich CA, Zhang H, Kubo H, Berretta RM, Barr LA, Molkentin JD, Houser SR, Ca(2+) influx through L-type Ca(2+) channels and transient receptor potential channels activates pathological hypertrophy signaling. J Mol Cell Cardiol 53:5(657-67)2012 Nov

22846936. Taghavi S, Duran JM, Jayarajan S, Cruz-Schiavone GE, Milner RE, Gaughan JP, Sjoholm LO, Pathak A, Santora TA, Houser SR, Goldberg AJ, Still making the case against prehospital intubation: a rat hemorrhagic shock model. J Trauma Acute Care Surg 73:2(332-7; discussion 337)2012 Aug

22628578. Zhang D, Fang P, Jiang X, Nelson J, Moore JK, Kruger WD, Berretta RM, Houser SR, Yang X, Wang H, Severe hyperhomocysteinemia promotes bone marrow-derived and resident inflammatory monocyte differentiation and atherosclerosis in LDLr/CBS-deficient mice. Circ Res 111:1(37-49)2012 Jun 22

22611476. Taghavi S, Duran JM, Berretta RM, Makarewich CA, Udeshi F, Sharp TE, Kubo H, Houser SR, George JC, Validation of transcatheter left ventricular electromechanical mapping for assessment of cardiac function and targeted transendocardial injection in a porcine ischemia-reperfusion model. Am J Transl Res 4:2(240-6)2012

22609523. Seqqat R, Guo X, Rafiq K, Kolpakov MA, Guo J, Koch WJ, Houser SR, Dell'italia LJ, Sabri A, Beta1-adrenergic receptors promote focal adhesion signaling downregulation and myocyte apoptosis in acute volume overload. J Mol Cell Cardiol 53:2(240-9)2012 Aug

22302787. Makarewich CA, Correll RN, Gao H, Zhang H, Yang B, Berretta RM, Rizzo V, Molkentin JD, Houser SR, A caveolae-targeted L-type Ca▓+ channel antagonist inhibits hypertrophic signaling without reducing cardiac contractility. Circ Res 110:5(669-74)2012 Mar 2

22302785. Zhang H, Makarewich CA, Kubo H, Wang W, Duran JM, Li Y, Berretta RM, Koch WJ, Chen X, Gao E, Valdivia HH, Houser SR, Hyperphosphorylation of the cardiac ryanodine receptor at serine 2808 is not involved in cardiac dysfunction after myocardial infarction. Circ Res 110:6(831-40)2012 Mar 16

22203672. Rafiq K, Guo J, Vlasenko L, Guo X, Kolpakov MA, Sanjay A, Houser SR, Sabri A, c-Cbl ubiquitin ligase regulates focal adhesion protein turnover and myofibril degeneration induced by neutrophil protease cathepsin G. J Biol Chem 287:8(5327-39)2012 Feb 17

21746883. Irrinki KM, Mallilankaraman K, Thapa RJ, Chandramoorthy HC, Smith FJ, Jog NR, Gandhirajan RK, Kelsen SG, Houser SR, May MJ, Balachandran S, Madesh M, Requirement of FADD, NEMO, and BAX/BAK for aberrant mitochondrial function in tumor necrosis factor alpha-induced necrosis. Mol Cell Biol 31:18(3745-58)2011 Sep

21454756. Angert D, Berretta RM, Kubo H, Zhang H, Chen X, Wang W, Ogorek B, Barbe M, Houser SR, Repair of the injured adult heart involves new myocytes potentially derived from resident cardiac stem cells. Circ Res 108:10(1226-37)2011 May 13

21111744. Chen X, Nakayama H, Zhang X, Ai X, Harris DM, Tang M, Zhang H, Szeto C, Stockbower K, Berretta RM, Eckhart AD, Koch WJ, Molkentin JD, Houser SR, Calcium influx through Cav1.2 is a proximal signal for pathological cardiomyocyte hypertrophy. J Mol Cell Cardiol 50:3(460-70)2011 Mar

20671241. Zhang H, Chen X, Gao E, MacDonnell SM, Wang W, Kolpakov M, Nakayama H, Zhang X, Jaleel N, Harris DM, Li Y, Tang M, Berretta R, Leri A, Kajstura J, Sabri A, Koch WJ, Molkentin JD, Houser SR, Increasing cardiac contractility after myocardial infarction exacerbates cardiac injury and pump dysfunction. Circ Res 107:6(800-9)2010 Sep 17

19716828. Kolpakov MA, Seqqat R, Rafiq K, Xi H, Margulies KB, Libonati JR, Powel P, Houser SR, Dell'italia LJ, Sabri A, Pleiotropic effects of neutrophils on myocyte apoptosis and left ventricular remodeling during early volume overload. J Mol Cell Cardiol 47:5(634-45)2009 Nov

19627664. Angert D, Houser SR, Stem cell therapy for heart failure. Curr Treat Options Cardiovasc Med 11:4(316-27)2009 Aug

19608982. MacDonnell SM, Weisser-Thomas J, Kubo H, Hanscome M, Liu Q, Jaleel N, Berretta R, Chen X, Brown JH, Sabri AK, Molkentin JD, Houser SR, CaMKII negatively regulates calcineurin-NFAT signaling in cardiac myocytes. Circ Res 105:4(316-25)2009 Aug 14

20443864. Kubo H, Berretta RM, Jaleel N, Angert D, Houser SR, c-Kit+ bone marrow stem cells differentiate into functional cardiac myocytes. Clin Transl Sci 2:1(26-32)2009 Feb

19065545. Molina EJ, Palma J, Gupta D, Torres D, Gaughan JP, Houser S, Macha M, Reverse remodeling is associated with changes in extracellular matrix proteases and tissue inhibitors after mesenchymal stem cell (MSC) treatment of pressure overload hypertrophy. J Tissue Eng Regen Med 3:2(85-91)2009 Feb

18993028. Molina EJ, Palma J, Gupta D, Gaughan JP, Houser S, Macha M, Right ventricular effects of intracoronary delivery of mesenchymal stem cells (MSC) in an animal model of pressure overload heart failure. Biomed Pharmacother 63:10(767-72)2009 Dec

18855260. Kolwicz SC, MacDonnell SM, Kendrick ZV, Houser SR, Libonati JR, Voluntary wheel running and pacing-induced dysfunction in hypertension. Clin Exp Hypertens 30:7(565-73)2008 Oct

18832749. Jaleel N, Nakayama H, Chen X, Kubo H, MacDonnell S, Zhang H, Berretta R, Robbins J, Cribbs L, Molkentin JD, Houser SR, Ca2+ influx through T- and L-type Ca2+ channels have different effects on myocyte contractility and induce unique cardiac phenotypes. Circ Res 103:10(1109-19)2008 Nov 7

18755480. Molina EJ, Gupta D, Palma J, Torres D, Gaughan JP, Houser S, Macha M, Novel experimental model of pressure overload hypertrophy in rats. J Surg Res 153:2(287-94)2009 May 15

18645055. Kubo H, Jaleel N, Kumarapeli A, Berretta RM, Bratinov G, Shan X, Wang H, Houser SR, Margulies KB, Increased cardiac myocyte progenitors in failing human hearts. Circulation 118:6(649-57)2008 Aug 5

18577756. Houser SR, Molkentin JD, Does contractile Ca2+ control calcineurin-NFAT signaling and pathological hypertrophy in cardiac myocytes? Sci Signal 1:25(pe31)2008 Jun 24

18388322. MacDonnell SM, GarcÝa-Rivas G, Scherman JA, Kubo H, Chen X, Valdivia H, Houser SR, Adrenergic regulation of cardiac contractility does not involve phosphorylation of the cardiac ryanodine receptor at serine 2808. Circ Res 102:8(e65-72)2008 Apr 25

18359894. Chen X, Zhang X, Harris DM, Piacentino V 3rd, Berretta RM, Margulies KB, Houser SR, Reduced effects of BAY K 8644 on L-type Ca2+ current in failing human cardiac myocytes are related to abnormal adrenergic regulation. Am J Physiol Heart Circ Physiol 294:5(H2257-67)2008 May

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Postdoctoral Fellows

Lab phone number 215-707-3275

Hui Gao                                    hui.gau@temple.edu

Hajime Kubo, PhD                 hajime.kubo@temple.edu

Hongyu Zhang                        hongyu.zhang@temple.edu


Graduate Students

Larry Barr                                  larry.barr@temple.edu

Jason Duran                            jason.duran@temple.edu

Catherine Makarewich           cat.makarewish@gmail.com

Thomas Sharp                        tuc72715@temple.edu

Fang Wang                               tub50225@temple.edu

Hongyu Zhang                         hongyu.zhang@temple.edu


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laboratory personnel:


Remus Berretta

Lab Manager

T:  215-707-6501

F:  215-707-0170

Email address:  remus.berretta@temple.edu


Tim Starosta

Laboratory Assistant

Email address: tua92387@temple.edu


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