Donald R. Menick, Ph.D.

Principal Investigator at the Gazes Cardiac Research Institute
Professor of Medicine, Professor of Biochemistry & Molecular Biology
Director, Molecular and Cellular Biology and Pathobiology Program

Room 203, Gazes / Thurmond Building
114 Doughty St., Charleton, SC 29403

Phone: (843) 876 - 5045 / Fax: (843) 876 - 5068
E-mail: menickd@musc.edu

Dr. Menick's Family Website

EDUCATION:

1975 B.A. (Biology); Westmont College, Santa Barbara, CA, 93103

1983 M.A. (Biology); Humboldt State University, Arcata, CA, 95521

1986 Ph.D. (Biochemistry); Utah State University, Logan, UT, 84321

Postgraduate Education

1984-1987 Postdoctoral Fellow; Department of Biochemistry, Roche Institute of Molecular Biology, H.R. Kaback, M.D.

Research Interest:

     My laboratory is involved in the analysis of gene regulation in cardiac hypertrophy and failure. Hypertrophy is one of the major compensatory mechanisms utilized by the heart for sustaining chronic hemodynamic overloads and consists of both changes in the expression of specific proteins and a quantitative increase in total cardiac protein. The cardiac hypertrophic response is characterized by an increase in cardiac mass, contractile protein content and size of the individual cardiocyte. This response provides an initial means for the heart to compensate for hemodynamic insults. But, if the pathological stimulus is prolonged or sufficiently severe, and the increase in mass is insufficient to normalize ventricular wall stress, decompensated hypertrophy or heart failure will occur. One of the main goals in the study of hypertrophy is to elucidate the components and pathways responsible for the development and maintenance of adaptive responses and distinguish them, if possible, from those responsible for the potentially pathological changes in cardiocyte morphology and physiology that characterize the failing heart. During hypertrophy there is a coordinate increase in the overall level of transcription and translation and in particular an increase in contractile protein content. This results in increased myofilaments and improved contractile function. But along with these compensatory changes, there is upregulation of genes which are normally expressed in the embryonic heart. Importantly, the upregulation or, in some cases, down-regulation of many of these genes is associated with distinct pathophysiological phenotypes in the hypertrophying and failing heart. Identifying the signaling components, nuclear factors, and cis-elements mediating the change in the expression of these genes could lead to the identification of new therapeutic targets specific to the failing heart.


Joachim Mueller examined the role of MAP Kinases in the regulation of the Na+-Ca2+ exchanger gene expression, and its role in transgenic mice.
     Our work is focused on the pathways through which signals are transduced to the nucleus mediating the change in expression of one of these genes, the Na+-Ca2+ exchanger. The Na+-Ca2+ exchanger is the principal Ca2+ efflux mechanism in cardiocytes and plays a major role in Ca2+ homeostasis and tension development in the heart. We have observed that the Na+-Ca2+ exchanger is upregulated in many forms of hypertrophy and failure. Along with exchanger upregulation, there is also the down-regulation of the SR Ca2+-ATPase. This altered pattern of expression recapitulates that which is seen in the fetal heart and has been demonstrated to contribute to the reduced contractile calcium transients and prolonged [Ca2+]i peak decay seen in late hypertrophy and failure. Importantly, our laboratory has focused for the last several years on identifying the molecular mechanism regulating the expression and activity of the Na+-Ca2+ exchanger in the normal and hypertrophied myocardium. We have identified the cis-elements and some of the nuclear factors responsible for regulating the expression of the Na+-Ca2+ exchanger gene. Therefore, we are in an ideal position to now examine the signaling pathways mediating the change in the Na+-Ca2+ exchanger expression which are activated by hemodynamic load.




Lin Xu is examining the role of p38 in the regulation of the Na+-Ca2+ exchanger gene expression.
Beth Neilsen is examining the role of tubulin in trasport and its affects in cardiac hypertrophy.

Laboratory Members

Avery Buchholz
Christy Kappler
Ludivine Renaud
Liisa Valppu
Lin Xu, M.D., Ph.D.

Past Laboratory Members

Kristie Blade, M.D., Ph.D.
Myra Dawson
Tyson Hagen
Wenjing Jiang
Cassie Leonard
Joachim Mueller, M.D.
Beth Neilsen
Michael O'Quinn
Allister Williams, M.D., Ph.D.
Patrick Withers


Recent Publications:

1. Viitanen, PV, Sarkar, HK, Menick, D, Trumble, WR, Padan, E, McComas, W, Poonian, M, Kaback, HR. Site-directed mutagenesis of the lac Y gene of Escherichia coli. Ann. NY Acad. Sci., 456:307-308 1985

2. Viitanen, PV, Menick, DR, Sarkar, HK, Trumble, WR, Kaback, HR. Site-directed mutagenesis of Cys-148 in the lac permease of Escherichia coli. Effect on transport binding and sulfhydryl inactivation. Biochemistry 1985; 24:7628-7635.

3. Menick, DR; Sarkar, HK, Poonian, MS, Kaback, HRi ?^154 is important for lac permease activity in Escherichia coli- Biochem. Biophys, Res^ Commun. 1985; 132:162-170.

4. Sarkar, HK, Menick, DR, Viitanen, PV, Trumble, WR, Poonian, MS, Kaback, HR- Site- specific mutagenesis ofcysteine-148 to serine of lac permease of Escherichia coli, J, BioL Chem, 1986; 261: 8914-8918.

5. Menick, DR, Lee, JA, Brooker, RJ, Wilson, TH, Kaback, HR (1987) The role ofcysteine residues in the Escherichia coli lac permease as determined by oligonucleotide-directed, site-specific mutagenesis. Biochemistry 1987; 26:1132-1136.

6. Menick, DR, Carrasco, N, Antes, L, Patel, L, Kaback, HR. Lac permease of Escherichia coli; Arginine-302 as a component of the postulated proton relay. Biochemistry 1987^ 26:6638-6644.

7. Costello, MJ, Escaig, J, Matsushita, K, Viitanen, PV, Menick, DR Kaback, HR. Purified lac permease and cytochrome o are functional as monomers. J. BioL Chem. 1987:262:17072-17082.

8. van Iwaarden, PR, Driessen, AJM, Menick, DR, Kaback, HR, Konings, WN. Characterization of purified, reconstituted site-directed cysteine mutants of the lactose permease of Escherichia coli. J. Biol. Chem. 1991; 266:15688-15692.

9. Block, NE, Menick, DR, Robinson KA, Buse, MG. Effect of denervation on the expression of two glucose transporter isoforms in rat hindlimb muscle. J. Clin. Invest. 1991; 88:1546-1552.

11. Gambel, AM, Desrosiers, M, and Menick, DR. Characterization of a P-type Ca2^ ATPase from Flavobacterium odoratum. 1 Biol. Chem. 1992; 267:15923-15931.

12. Menick, DR, Desrosiers, M, Gambel, AM. Transport, hydrolysis and phosphoenzyme formation of a prokaryotic Ca^-ATPase. Ann. NYAcad Sci. 1992; 671:427-429. BIBLIOGRAPHY (Continued)

13. Balashov, SP, Govindjee, R, Kono, Mi Imasheva, E, Lukashov, E, Ebrey, TG, Crouch^ RK^ Menick, DR, and FengÈ Y. Effect of the arginine-82 to alanine mutation in bacteriorhodopsin on dark adaptation, proton release and the photochemical cycle. ^Biochemistry1993, 32:10331-10343.

14. Gambel, AM, Menick, DR. Phosphorylation and reaction intermediates of the prokaryotic Ca^-ATPase. J. BioL Chem. 1993; 268:20590-20597.

15. Kent, RL, Rozich, JD, McCollam, PL, McDermott, DE, Thacker UF, Menick, DR, McDermott, PJ, Cooper, G IV. Rapid expression of the Na^Ca2^ exchanger in response to cardiac pressure overload. Am. J. Physiol. 1993; 265 (Heart Circ. Physiol. 34): H1024- 1029.

16. Didyk, RB, Anton, EE, Robinson, KA, Menick, DR, Buse, MG. Effect of immobilization on glucose transporter expression in rat hindlimb muscles. Metabolism 1994; 43: 1389- 1394.

17. Feng, Y, Menick, DR, Katz, BM, Beischel, CJ, Hazard, ES, Misra S, Ebrey TG, Crouch, RK. Probing of retinal binding site of bacteriorhodopsin by affinity labeling. ^Biochemistry 1994; 33:11624-11630-

18.; Balashov, SP, Govindjee, R, Imasheva, ES, Misra, S, Ebrey, TG, Feng, Y, Crouch, RK, Menick, DR. The two pKa's of aspartate-85 and control of thermal isomerization and proton release in the arginine-82 to lysine mutant of bacteriorhodopsin. Biochemistry ; 1^34:S820-È88;^:f

19. Desrosiers, MG, Gately, LJ, Gambel, AM, Menick, DR. Purification and characterization of the Ca2+-ATPase of Flavobacterium odoratum. J. Biol. Chem. 1996; 271:3945-3951.

20. Peiffer, WE, Desrosiers, MG, Menick, DR. Cloning and expression of the unique Ca2+-ATPase from Flavobacterium odoratum. J. Biol. Chem. 1996; 271:5095-5100.

21. Menick, DR, Barnes, KV, Thacker, UF, Dawson, MM, McDermott, DE, Rozich, JD, Kent, RL, Cooper G IV. The exchanger and cardiac hypertrophy. Ann. NY Acad. Sci. 1996; 779:489-501.

22. Barnes, KV, Dawson, MM, Menick, DR. Initial characterization of the feline sodium- calcium exchanger gene. Ann. NY Acad. Sci. 1996; 779:121-125.

23. Govindjee, R, Misra, S, Balashov, SP, Ebrey, TG, Crouch, RK, Menick DR. Arginine-82 regulates the pKa of the group responsible for the light-driven proton release in bacteriorhodopsin. Biophys. J. 1996; 71:1011-1023.

24. Menick, DR, Barnes, KV, Dawson, MM, Kent, RL, Cooper, G IV. Gene expression of the Na-Ca exchanger in cardiac hypertrophy. J. Cardiac Failure 1996; 2(4S):569- 576.

25. Govindjee, R, Imasheva, ES, Misra, S, Balashov, SP, Ebrey, TG, Chen, N, Menick, DR, Crouch, RK. Mutation of a surface residue, lysine-129, reverses the order of proton release and uptake in bacteriorhodopsin; guanidine hydrochloride restores it. Biophys. J. 1997, 72:886-898.

26. Kuppuswamy, D, Kerr, C, Narishige, T, Kasi, VS, Menick, DR, Cooper, G IV. Association of tyrosine-phosphorylated c-Src with the cytoskeleton of hypertrophying myocardium. J. Biol. Chem. 1997, 272:4500-4508.

27. Barnes, KV, Cheng, G, Dawson, MM, Menick, DR. Cloning of the cardiac, kidney, and brain promoters of the feline ncx1 gene. J. Biol. Chem. 1997, 272:11510-11517.

28. Balashov, SP, Imasheva, ES, Ebrey, TG, Chen, N, Menick, DR, Crouch, RK. Glutamate-194 to cysteine mutation inhibits fast light-induced proton release in bacteriorhodopsin. Biochemistry 36:8671-8676, 1997 (Accelerated publication).

29. Misra, S, Ebrey, TG, Crouch, RK, Menick, DR. Charge movements in the 13-cis photocycles of the bacteriorhodopsin mutants R82K and R82Q. Photochem. Photobiol. 65:1039-1044, 1997.

30. Misra, S, Martin, C, Kwon, O-H, Ebrey, TG, Chen, N, Crouch, RK, Menick, DR. Mutation of arginine 134 to lysine alters the pKas of key groups involved in proton pumping by bacteriorhodopsin. Photchem. Photobiol. 66:774-783, 1997.

31. Sato, H, Nagai, T, Kuppuswamy, D, Narishige, T, Koide, M, Menick, DR, Cooper, G. Microtubule stabilization in pressure overload cardiac hypertrophy. J. Cell Biol. 139:963-973, 1997.

32. Müller, JG, Nemoto, S, Laser, M, Carabello, BA, Menick, DR. Calcineurin inhibition and cardiac hypertrophy. Science 282:1007a, 1998.

33. Cheng, G, Hagen, T, Barnes, KV, Dawson, M, Menick, DR. The role of GATA, SRF and a novel element in the regulation of cardiac expression of the Na+-Ca2+ exchanger gene. J Biol Chem 274:12819-12826. 1999.

34. Balashov, SP, Lu, M, Imasheva, ES, Govindjee, R, Othersen, B, III, Crouch, RK, Menick, DR. The proton release group of bacteriorhodopsin controls the rate of the final step of its photocycle at low pH. Biochemistry 38:2026-2039, 1999.

35. Narishige, T, Blade, KL, Ishibashi, Y, Nagai, T, Hamawaki, M, Menick, DR, Kuppuswamy, D, Cooper, G. Cardiac hypertrophic and developmental regulation of the b-tubulin multigene family. J Biol Chem. 274:9692-7 1999.

36. Blade, K, Menick, DR, Cabral, F. Overexpression of class I, II, or IVb b-tubulin isotypes in CHO cells is insufficient to confer resistance to paclitaxel. J. Cell Science, Jul;112 ( Pt 13):2213-21 1999.

37. Gonzalez-Garay, ML, Chang, L, Blade, K, Menick, DR, Cabral, F. A leucine cluster in b-tubulin that is involved in paclitaxel resistance. J. Biol. Chem. 274(34):23875-82 1999.

38. Imasheva, ES, Balashov, SP, Ebrey, TG, Chen, N, Crouch, RK, Menick, DR.Two groups control light-induced Schiff base deprotonation and the affinity of asp(85) in the Arg(82)His mutant of bacteriorhodopsin. Biophys. J., 77:2750-2763 1999.

39. Lu, M, Balashov, SP, Ebrey, TG, Chen, N, Menick, Crouch, RK.Evidence for the reate of the final step in the bacteriorhodpsin photocycle being controlled by the proton release group: R134H mutant Biochemistry, 39:2325-2331 2000.

40. Laser, M., Willey, C.D., Jiang, W., Cooper, G. 4th, Menick, D.R., Zile, M.R., Kuppuswamy, D. Integrin activation and focal complex formation in cardiac hypertrophy. J Biol Chem. Nov 10; 275 (45): 35624-30 (2000).

41. Imasheva, ES, Lu, M, Balashov, SP, Ebrey, TG, Chen, Y, Ablonczy, Z, Menick, DR, Crouch, RK.Exploring the function of Tyr83 in bacteriorhodopsin: features of the Y83F and Y83N mutants. Biochemistry, 40:13320-13330 2001.

42. Müller, JG, Isomatsu, Y, Koushik, SV, O'Quinn, M, Xu, L, Kappler, CS, Hapke, E, Zile, MR, Conway, SJ, Menick, DR.Cardiac-specific expression and hypertrophic upregulation of Exon H1 of feline Na+-Ca2+ exchanger-promoter in transgenic mouse model. Circ. Res., 90:(In Press) 2002.

43. Menick, DR, Xu, L, Kappler, C, Jiang, W, Withers, PR, Shepherd, N, Conway, SJ, Müller, JG.Pathways regulating Na+-Ca2+ exchanger expression in the heart. N.Y. Acad. Sci., In Press

44. Xu, L, Müller, JG, Withers, PR, Kappler, C, Jiang, W, Menick, DR, Role of MAP kinases in the Na+-Ca2+ exchanger gene expression in feline adult cardiocytes N.Y. Acad. Sci., In Press

45. Müller, JG, Thompson, JT, Rackley, MS, McQuinn, TC, Menick, DR, O'Brien, TX.Co-regulation of Nkx2-5 and serum response factor induced activation of the cardiac Na+-Ca2+ exchanger promoter, Submitted




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