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Decreased inward rectifier and voltage-gated K⁺ currents of the right septal coronary artery smooth muscle cells in pulmonary arterial hypertensive rats

Kim SE, Yin MZ, Kim HJ, Vorn R, Yoo HY, Kim SJ

In vascular smooth muscle, K⁺ channels, such as voltage-gated K⁺ channels (Kv), inward-rectifier K⁺ channels (Kir), and big-conductance Ca²⁺-activated K⁺ channels (BK(Ca)), establish a hyperpolarized membrane potential and counterbalance the...
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Analysis of interaction between intracellular spermine and transient receptor potential canonical 4 channel: multiple candidate sites of negatively charged amino acids for the inward rectification of transient receptor potential canonical 4

Kim J, Moon SH, Kim T, Ko J, Jeon YK, Shin YC, Jeon JH, So I

Transient receptor potential canonical 4 (TRPC4) channel is a nonselective calcium-permeable cation channels. In intestinal smooth muscle cells, TRPC4 currents contribute more than 80% to muscarinic cationic current (mIcat). With...
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Overview of Urethral Reconstruction by Tissue Engineering: Current Strategies, Clinical Status and Future Direction

Rashidbenam Z, Jasman MH, Hafez P, Tan GH, Goh EH, Fam XI, Ho CC, Zainuddin , Rajan R, Mohd Nor F, Shuhaili M, Kosai NR, Imran FH, Ng MH

BACKGROUND: Urinary tract is subjected to a variety of disorders such as urethral stricture, which often develops as a result of scarring process. Urethral stricture can be treated by urethral...
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Role of DNA Methylation in the Development and Differentiation of Intestinal Epithelial Cells and Smooth Muscle Cells

Jorgensen , Ro S

  • KMID: 2454636
  • J Neurogastroenterol Motil.
  • 2019 Jul;25(3):377-386.
  • doi: 10.5056/jnm19077
The mammalian intestine contains many different cell types but is comprised of 2 main cell types: epithelial cells and smooth muscle cells. Recent in vivo and in vitro evidence has...
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Benefits of Angiotensin Receptor Blockade: Preventing Smooth Muscle Cell Senescence and Beyond

Song P, Kim JH

No abstract available.
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Angiotensin II Type 1 Receptor Blocker, Fimasartan, Reduces Vascular Smooth Muscle Cell Senescence by Inhibiting the CYR61 Signaling Pathway

Kim I, Park CS, Lee HY

BACKGROUND AND OBJECTIVES: Angiotensin II (Ang II) has been suggested to accelerate vascular senescence, however the molecular mechanism(s) remain unknown. METHODS: We cultured human coronary artery smooth muscle cells (hCSMCs) and...
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Morphology of the human aorta and age-related changes: anatomical facts

Komutrattananont P, Mahakkanukrauh P, Das S

Aorta is the largest artery in the human body. Its starting point is the aortic orifice of the aortic valve and it terminates at the level of the fourth lumbar...
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Stem Cells Seeded on Multilayered Scaffolds Implanted into an Injured Bladder Rat Model Improves Bladder Function

Shrestha K, Jeon SH, Jung AR, Kim IG, Kim GE, Park YH, Kim SH, Lee JY

BACKGROUND: To investigate whether human adipose-derived stem cells (hADSCs) seeded on multilayered poly (L-lactide-co-ε-caprolactone) (PLCL) sheets improve bladder function in a rat model of detrusor smooth muscle-removed bladder. METHODS: Male rats...
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Control of Motility in the Internal Anal Sphincter

Keef KD, Cobine CA

  • KMID: 2449091
  • J Neurogastroenterol Motil.
  • 2019 Apr;25(2):189-204.
  • doi: 10.5056/jnm18172
The internal anal sphincter (IAS) plays an important role in the maintenance of fecal continence since it generates tone and is responsible for > 70% of resting anal pressure. During...
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A Case of Subcutaneous Leiomyosarcoma of the Scalp

Choi ME, Shin HJ, Chang SE, Lee MW, Choi JH, Lee WJ

  • KMID: 2446919
  • Korean J Dermatol.
  • 2019 Mar;57(3):136-139.
Leiomyosarcoma is a rare and aggressive soft tissue sarcoma originating in smooth muscle cells. There are two forms of primary superficial leiomyosarcomas depending on the origin and prognosis, one derived...
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Involvement of immune responses in pulmonary arterial hypertension; lessons from rodent models

Kim K, Choi JH

Pulmonary hypertension (PH) is a pathological state with sustained elevation of pulmonary artery (PA) pressure. Since the pathogenesis of PH is mostly irreversible, the disease often comes up with poor...
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Development of Artificial Substitutes for Upper Digestive Tract: Personal Experience of Trials and Errors

Chung EJ

The current treatments for esophageal diseases, such as carcinomas, trauma or congenital malformations, require surgical intervention, and esophageal reconstruction using redundant parts of the gastrointestinal tract. However, the use of...
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Change of voltage-gated potassium channel 1.7 expressions in monocrotaline-induced pulmonary arterial hypertension rat model

Lee H, Kim KC, Hong YM

PURPOSE: Abnormal potassium channels expression affects vessel function, including vascular tone and proliferation rate. Diverse potassium channels, including voltage-gated potassium (Kv) channels, are involved in pathological changes of pulmonary arterial...
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Inhibition of voltage-dependent K⁺ current in rabbit coronary arterial smooth muscle cells by the class Ic antiarrhythmic drug propafenone

An JR, Li H, Seo MS, Park WS

In this study, we demonstrated the inhibitory effect of the Class Ic antiarrhythmic agent propafenone on voltage-dependent K⁺ (Kv) channels using freshly isolated coronary artery smooth muscle cells from rabbits....
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Microarray Analysis in Pulmonary Hypertensive Rat Heart after Simvastatin Treatment

Kim YK, Kim KC, Hong YM

OBJECTIVES: Simvastatin has been reported to attenuate the development of pulmonary hypertension through increased apoptosis as well as reduced proliferation of smooth muscle cells in obstructive vascular lesions. Microarray experiment...
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Overexpression of miR-155-5p Inhibits the Proliferation and Migration of IL-13-Induced Human Bronchial Smooth Muscle Cells by Suppressing TGF-β-Activated Kinase 1/MAP3K7-Binding Protein 2

Shi Y, Fu X, Cao Q, Mao Z, Chen Y, Sun Y, Liu Z, Zhang Q

PURPOSE: Molecular mechanisms leading to asthma is still ill-defined. Though the function of microRNAs (miRNAs) in asthma was previously reported, the involvement of miR-155 in important features of this disease...
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Arginase II inhibition prevents interleukin-8 production through regulation of p38 MAPK phosphorylation activated by loss of mitochondrial membrane potential in nLDL-stimulated hAoSMCs

Koo BH, Yi BG, Jeong MS, Kwon SH, Hoe KL, Kwon YG, Won MH, Kim YM, Ryoo S

Arginase inhibition exhibits beneficial effects in vascular endothelial and smooth muscle cells. In human aortic smooth muscle cells (hAoSMCs), native low-density lipoprotein (nLDL) induced the production of interleukin-8 (IL-8) that...
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rBMSCs/ITGA5B1 Promotes Human Vascular Smooth Muscle Cell Differentiation via Enhancing Nitric Oxide Production

Zhang Y, Ding J, Xu C, Yang H, Xia P, Ma S, Chen H

BACKGROUND AND OBJECTIVES: Previous studies have shown that integrins alpha5beta1 (ITGA5B1) gene-modified rat bone marrow mesenchymal stem cells (rBMSCs) could prevent cell anoikis and increase the nitric oxide (NO) production....
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Effect of Sphingosine-1-Phosphate on Intracellular Free Ca2+ in Cat Esophageal Smooth Muscle Cells

Lee DK, Min YS, Yoo SS, Shim HS, Park SY, Sohn UD

A comprehensive collection of proteins senses local changes in intracellular Ca²⁺ concentrations ([Ca²⁺](i) and transduces these signals into responses to agonists. In the present study, we examined the effect of...
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Effects of corticotropin-releasing hormone on the expression of adenosine triphosphate-sensitive potassium channels (Kir6.1/SUR2B) in human term pregnant myometrium

Kim JY, Wu WH, Jun JH, Sohn J, Seo YS

OBJECTIVE: Corticotropin-releasing hormone (CRH) is a crucial regulator of human pregnancy and parturition. Adenosine triphosphate (ATP)-sensitive potassium (KATP) channels are important for regulating myometrial quiescence during pregnancy. We investigated regulatory...
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