Faculty

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Ching Ling Lien, PhD
Associate Professor Surgery and Biochemistry & Molecular Medicine
Pediatrics
CHL MailStop137 Off Campus Los Angeles
+1 323 361 8377

Overview

Heart disease is among the leading causes of death for both adults and children. Mammalian hearts have very limited regenerative capacity and heal by scarring and hypertrophy after heart injury, which results in decreased cardiac performance. By contrast, zebrafish have remarkable regenerative capacity. The molecular mechanisms of zebrafish heart regeneration are not understood. The goal of my lab is to define the molecular and cellular mechanisms of heart regeneration in zebrafish with the long-term goal of enhancing regenerative capacity and replacing defective tissues in diseased human hearts.

We use genetic and genomic approaches to dissect the process of zebrafish heart regeneration. Using gene expression profiling, we identified a set of genes that are differentially expressed during heart regeneration. We would like to address the following basic questions: How do these genes contribute to heart regeneration in zebrafish? Does regeneration recapitulate the developmental process? Are stem cells also involved in this regeneration process? The functions of these genes will be characterized in cultured cardiomyocytes in vitro, zebrafish embryos and regenerating hearts in vivo.

Most zebrafish genes are highly conserved with mammalian homologues. However, zebrafish can regenerate heart but mammals can't. We would like to test the two possibilities that contribute to the incapability of regeneration: 1 mammalian hearts fail to express these genes upon injuries at the right time and place; 2. mammalian cardiomyocytes response to stimuli differently from zebrafish cardiomyocytes.

Our work may lead to discovery of important factors/pathways that can contribute to pharmaceutical or cellular therapies for ischemic or congenital heart diseases.

Publications

Frequency of mononuclear diploid cardiomyocytes underlies natural variation in heart regeneration. Nat Genet. 2017 Sep; 49(9):1346-1353. View in: PubMed

Intestinal adaptation in proximal and distal segments: Two epithelial responses diverge after intestinal separation. Surgery. 2017 Apr; 161(4):1016-1027. View in: PubMed

Inhibition of Fgf signaling in short bowel syndrome increases weight loss and epithelial proliferation. Surgery. 2017 Mar; 161(3):694-703. View in: PubMed

Short bowel syndrome results in increased gene expression associated with proliferation, inflammation, bile acid synthesis and immune system activation: RNA sequencing a zebrafish SBS model. BMC Genomics. 2017 Jan 25; 18(1):23. View in: PubMed

Epidermal growth factor suppresses intestinal epithelial cell shedding through a MAPK-dependent pathway. J Cell Sci. 2017 Jan 01; 130(1):90-96. View in: PubMed

Intestinal adaptation in proximal and distal segments: Two epithelial responses diverge after intestinal separation. Surgery. 2016 Dec 20. View in: PubMed

Inhibition of Fgf signaling in short bowel syndrome increases weight loss and epithelial proliferation. Surgery. 2016 Oct 19. View in: PubMed

Recent advancements in understanding endogenous heart regeneration-insights from adult zebrafish and neonatal mice. Semin Cell Dev Biol. 2016 Oct; 58:34-40. View in: PubMed

Epidermal growth factor suppresses intestinal epithelial cell shedding through a MAPK-dependent pathway. J Cell Sci. 2016 Mar 29. View in: PubMed

Adult zebrafish intestine resection: a novel model of short bowel syndrome, adaptation, and intestinal stem cell regeneration. Am J Physiol Gastrointest Liver Physiol. 2015 Aug 1; 309(3):G135-45. View in: PubMed

Adult zebrafish intestine resection: a novel model of short bowel syndrome, adaptation, and intestinal stem cell regeneration. Am J Physiol Gastrointest Liver Physiol. 2015 Aug 01; 309(3):G135-45. View in: PubMed

Chemokine-guided angiogenesis directs coronary vasculature formation in zebrafish. Dev Cell. 2015 May 26; 33(4):442-54. View in: PubMed

CXCL12 Signaling Is Essential for Maturation of the Ventricular Coronary Endothelial Plexus and Establishment of Functional Coronary Circulation. Dev Cell. 2015 May 26; 33(4):469-77. View in: PubMed

Dry-contact microelectrode membranes for wireless detection of electrical phenotypes in neonatal mouse hearts. Biomed Microdevices. 2015 Apr; 17(2):40. View in: PubMed

Dry-contact microelectrode membranes for wireless detection of electrical phenotypes in neonatal mouse hearts. Biomed Microdevices. 2015 Apr; 17(2):9912. View in: PubMed

Extracardiac control of embryonic cardiomyocyte proliferation and ventricular wall expansion. Cardiovasc Res. 2015 Mar 1; 105(3):271-8. View in: PubMed

Extracardiac control of embryonic cardiomyocyte proliferation and ventricular wall expansion. Cardiovasc Res. 2015 Mar 01; 105(3):271-8. View in: PubMed

Differential regenerative capacity of neonatal mouse hearts after cryoinjury. Dev Biol. 2015 Mar 01; 399(1):91-9. View in: PubMed

Differential regenerative capacity of neonatal mouse hearts after cryoinjury. Dev Biol. 2015 Mar 1; 399(1):91-9. View in: PubMed

High-frequency dual mode pulsed wave Doppler imaging for monitoring the functional regeneration of adult zebrafish hearts. J R Soc Interface. 2015 Feb 06; 12(103). View in: PubMed

High-frequency dual mode pulsed wave Doppler imaging for monitoring the functional regeneration of adult zebrafish hearts. J R Soc Interface. 2015 Feb 6; 12(103). View in: PubMed

Shear stress-activated Wnt-angiopoietin-2 signaling recapitulates vascular repair in zebrafish embryos. Arterioscler Thromb Vasc Biol. 2014 Oct; 34(10):2268-75. View in: PubMed

Wearable multi-channel microelectrode membranes for elucidating electrophysiological phenotypes of injured myocardium. Integr Biol (Camb). 2014 Aug; 6(8):789-95. View in: PubMed

Wearable multi-channel microelectrode membranes for elucidating electrophysiological phenotypes of injured myocardium. Integr Biol (Camb). 2014 Jul 21; 6(8):789-95. View in: PubMed

Cardiac regeneration in model organisms. Curr Treat Options Cardiovasc Med. 2014 Mar; 16(3):288. View in: PubMed

High frequency photoacoustic imaging for in vivo visualizing blood flow of zebrafish heart. Opt Express. 2013 Jun 17; 21(12):14636-42. View in: PubMed

Ultrasound bio-microscopic image segmentation for evaluation of zebrafish cardiac function. IEEE Trans Ultrason Ferroelectr Freq Control. 2013 Apr; 60(4):718-26. View in: PubMed

Pulse inversion chirp coded tissue harmonic imaging (PI-CTHI) of Zebrafish heart using high frame rate ultrasound biomicroscopy. Ann Biomed Eng. 2013 Jan; 41(1):41-52. View in: PubMed

Igf Signaling is Required for Cardiomyocyte Proliferation during Zebrafish Heart Development and Regeneration. PLoS One. 2013; 8(6):e67266. View in: PubMed

Moving domain computational fluid dynamics to interface with an embryonic model of cardiac morphogenesis. PLoS One. 2013; 8(8):e72924. View in: PubMed

Heart repair and regeneration: recent insights from zebrafish studies. Wound Repair Regen. 2012 Sep-Oct; 20(5):638-46. View in: PubMed

Heart repair and regeneration: Recent insights from zebrafish studies. Wound Repair Regen. 2012 Sep; 20(5):638-46. View in: PubMed

Acoustic radiation force impulse (ARFI) imaging of zebrafish embryo by high-frequency coded excitation sequence. Ann Biomed Eng. 2012 Apr; 40(4):907-15. View in: PubMed

In vitro culture of epicardial cells from adult zebrafish heart on a fibrin matrix. Nat Protoc. 2012 Jan 19; 7(2):247-55. View in: PubMed

In vitro culture of epicardial cells from adult zebrafish heart on a fibrin matrix. Nat Protoc. 2012; 7(2):247-55. View in: PubMed

Restraint of angiogenesis by zinc finger transcription factor CTCF-dependent chromatin insulation. Proc Natl Acad Sci U S A. 2011 Sep 13; 108(37):15231-6. View in: PubMed

PDGF signaling is required for epicardial function and blood vessel formation in regenerating zebrafish hearts. Proc Natl Acad Sci U S A. 2010 Oct 5; 107(40):17206-10. View in: PubMed

PDGF signaling is required for epicardial function and blood vessel formation in regenerating zebrafish hearts. Proc Natl Acad Sci U S A. 2010 Oct 05; 107(40):17206-10. View in: PubMed

Platelet-derived growth factor receptor beta is critical for zebrafish intersegmental vessel formation. PLoS One. 2010 Jun 25; 5(6):e11324. View in: PubMed

Platelet-derived growth factor receptor beta is critical for zebrafish intersegmental vessel formation. PLoS One. 2010; 5(6):e11324. View in: PubMed

Micro-electrocardiograms to study post-ventricular amputation of zebrafish heart. Ann Biomed Eng. 2009 May; 37(5):890-901. View in: PubMed

In vivo cardiac imaging of adult zebrafish using high frequency ultrasound (45-75 MHz). Ultrasound Med Biol. 2008 Jan; 34(1):31-9. View in: PubMed

Developmental origin of a bipotential myocardial and smooth muscle cell precursor in the mammalian heart. Cell. 2006 Dec 15; 127(6):1137-50. View in: PubMed

Gene expression analysis of zebrafish heart regeneration. PLoS Biol. 2006 Aug; 4(8):e260. View in: PubMed

A threshold of GATA4 and GATA6 expression is required for cardiovascular development. Proc Natl Acad Sci U S A. 2006 Jul 25; 103(30):11189-94. View in: PubMed

Transcriptional profiling of caudal fin regeneration in zebrafish. ScientificWorldJournal. 2006 Jun 02; 6 Suppl 1:38-54. View in: PubMed

Transcriptional profiling of caudal fin regeneration in zebrafish. ScientificWorldJournal. 2006; 6 Suppl 1:38-54. View in: PubMed

fgf20 is essential for initiating zebrafish fin regeneration. Science. 2005 Dec 23; 310(5756):1957-60. View in: PubMed

Heat-shock protein 60 is required for blastema formation and maintenance during regeneration. Proc Natl Acad Sci U S A. 2005 Oct 11; 102(41):14599-604. View in: PubMed

Target gene-specific modulation of myocardin activity by GATA transcription factors. Mol Cell Biol. 2004 Oct; 24(19):8519-28. View in: PubMed

Cardiac-specific activity of an Nkx2-5 enhancer requires an evolutionarily conserved Smad binding site. Dev Biol. 2002 Apr 15; 244(2):257-66. View in: PubMed

The Gas7 gene encodes two protein isoforms differentially expressed within the brain. Genomics. 1999 Nov 01; 61(3):298-306. View in: PubMed

The Gas7 gene encodes two protein isoforms differentially expressed within the brain. Genomics. 1999 Nov 1; 61(3):298-306. View in: PubMed

Control of early cardiac-specific transcription of Nkx2-5 by a GATA-dependent enhancer. Development. 1999 Jan; 126(1):75-84. View in: PubMed

The myogenic regulatory gene Mef2 is a direct target for transcriptional activation by Twist during Drosophila myogenesis. Genes Dev. 1998 Feb 01; 12(3):422-34. View in: PubMed

The myogenic regulatory gene Mef2 is a direct target for transcriptional activation by Twist during Drosophila myogenesis. Genes Dev. 1998 Feb 1; 12(3):422-34. View in: PubMed

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