Effect of chronic obstructive pulmonary disease on calcium pump ATPase expression in human diaphragm.
Effect of chronic obstructive pulmonary disease on calcium pump ATPase expression in human diaphragm.
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慢性阻塞性肺疾病对人膈肌钙泵 ATP 酶表达的影响。
DOI:
10.1152/japplphysiol.00767.2004
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发表时间:
2005
期刊:
影响因子:
--
通讯作者:
Levine,Sanford
中科院分区:
文献类型:
--
作者:
Nguyen,Taitan;Rubinstein,NealA;Vijayasarathy,Camasamudram;Rome,LawrenceC;Kaiser,LarryR;Shrager,JosephB;Levine,Sanford
We have previously demonstrated that human diaphragm remodeling elicited by severe chronic obstructive pulmonary disease (COPD) is characterized by a fast-to-slow myosin heavy chain isoform transformation. To test the hypothesis that COPD-induced diaphragm remodeling also elicits a fast-to-slow isoform shift in the sarcoendoplasmic reticulum Ca2+ATPase (SERCA), the other major ATPase in skeletal muscle, we obtained intraoperative biopsies of the costal diaphragm from 10 severe COPD patients and 10 control subjects. We then used isoform-specific monoclonal antibodies to characterize diaphragm fibers with respect to the expression of SERCA isoforms. Compared with control diaphragms, COPD diaphragms exhibited a 63% decrease in fibers expressing only fast SERCA (i.e., SERCA1;P< 0.001), a 190% increase in fibers containing both fast and slow SERCA isoforms (P< 0.01), and a 19% increase (P< 0.05) in fibers expressing only the slow SERCA isoform (i.e., SERCA2). Additionally, immunoblot experiments carried out on diaphragm homogenates indicated that COPD diaphragms expressed only one-third the SERCA1 content noted in control diaphragms; in contrast, COPD and control diaphragms did not differ with respect to SERCA2 content. The combination of these histological and immunoblot results is consistent with the hypothesis that diaphragm remodeling elicited by severe COPD is characterized by a fast-to-slow SERCA isoform transformation. Moreover, the combination of these SERCA data and our previously reported myosin heavy chain isoform data (Levine S, Nguyen T, Kaiser LR, Rubinstein NA, Maislin G, Gregory C, Rome LC, Dudley GA, Sieck GC, and Shrager JB.Am J Respir Crit Care Med168: 706–713, 2003) suggests that diaphragm remodeling elicited by severe COPD should decrease ATP utilization by the diaphragm.
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DOI:
10.1111/j.1432-1033.1984.tb08154.x
发表时间:
1984
期刊:
European journal of biochemistry
影响因子:
--
作者:
Dux,L;Martonosi,A
通讯作者:
Martonosi,A
影响因子:
5.7
作者:
S. Levine;Taitan Nguyen;J. Shrager;Larry R. Kaiser;V. Camasamudram;Neal Rubinstein
通讯作者:
Neal Rubinstein
DOI:
--
发表时间:
1988
期刊:
Journal of Neurological Sciences
影响因子:
--
作者:
L. Larsson;C. Skogsberg
通讯作者:
C. Skogsberg
DOI:
10.1164/arrd.1983.128.1.54
发表时间:
1983-01-01
期刊:
AMERICAN REVIEW OF RESPIRATORY DISEASE
影响因子:
--
作者:
SHORE, SA;HUK, O;MARTIN, JG
通讯作者:
MARTIN, JG
影响因子:
2.7
作者:
E. Zubrzycka;B. Korczak;H. Osińska;M. G. Sarzała
通讯作者:
M. G. Sarzała