Evidence map›Paper›PMID 31763140›Full record

ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2019

Engineered Cardiac Pacemaker Nodes Created by TBX18 Gene Transfer Overcome Source-Sink Mismatch.

Sandra I Grijalva, Jin-Mo Gu, Jun Li, Natasha Fernandez, Jinqi Fan, Jung Hoon Sung, Seung Yup Lee, Conner Herndon, Erin M Buckley, Sung-Jin Park and 2 more

Open access · goldAbstract read
In one paragraph

Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.7field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
  3. Promoting differentiation of human-induced pluripotent stem cells into sinoatrial node-like cells through programmed regulation of AMPK signalling pathway.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2025
    Article
  4. Review
  5. Tissue elasticity modulates cardiac pacemaker cell automaticity.American journal of physiology. Heart and circulatory physiology · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Implementing Biological Pacemakers: Design Criteria for Successful.Circulation. Arrhythmia and electrophysiology · 2021
    Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 2 countries.

Sandra I GrijalvaDepartment of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 USA.ORCID https://orcid.org/0000-0003-2349-5803
Jin-Mo GuDepartment of Pediatrics Emory University Atlanta GA 30322 USA.
Jun LiDepartment of Pediatrics Emory University Atlanta GA 30322 USA.
Natasha FernandezDepartment of Pediatrics Emory University Atlanta GA 30322 USA.
Jinqi FanDepartment of Pediatrics Emory University Atlanta GA 30322 USA.
Jung Hoon SungDepartment of Pediatrics Emory University Atlanta GA 30322 USA.
Seung Yup LeeDepartment of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 USA.
Conner HerndonDepartment of Physics Georgia Institute of Technology Atlanta GA 30332 USA.
Erin M BuckleyDepartment of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 USA.
Sung-Jin ParkDepartment of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 USA.
Flavio H FentonDepartment of Physics Georgia Institute of Technology Atlanta GA 30332 USA.
Hee Cheol ChoDepartment of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 USA.
Georgia Institute of Technology · USEmory University · US

Funding

Integrative High-Resolution Experimental and Multiscale Modeling of Arrhythmias to Optimize Low Energy Anti-fibrillation Pacing (LEAP)R01HL143450 · NHLBI · GEORGIA INSTITUTE OF TECHNOLOGY · PI Flavio H Fenton · 2018 to 2026
$3.2M
Patterning myocardial specification of human pluripotent stem cellsR01HL143065 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI CHO, HEE CHEOL · 2019 to 2022
$2.3M
Molecular determinants of the cardiac pacemaker automaticityR01HL111646 · NHLBI · EMORY UNIVERSITY · PI CHO, HEE CHEOL · 2012 to 2016
$2.0M
Reverse-engineering the sinoatrial node with induced pacemaker cellsF31HL137367 · NHLBI · EMORY UNIVERSITY · PI GONZALEZ, SANDRA IVONNE · 2017 to 2019
$97k
NHLBI NIH HHS F31 HL137367NHLBI NIH HHS R01 HL111646NHLBI NIH HHS R01 HL143065NHLBI NIH HHS R01 HL143450
6 · The paper itself

Abstract

Every heartbeat originates from a tiny tissue in the heart called the sinoatrial node (SAN). The SAN harbors only ≈10 000 cardiac pacemaker cells, initiating an electrical impulse that captures the entire heart, consisting of billions of cardiomyocytes for each cardiac contraction. How these rare cardiac pacemaker cells (the electrical source) can overcome the electrically hyperpolarizing and quiescent myocardium (the electrical sink) is incompletely understood. Due to the scarcity of native pacemaker cells, this concept of source-sink mismatch cannot be tested directly with live cardiac tissue constructs. By exploiting TBX18 induced pacemaker cells by somatic gene transfer, 3D cardiac pacemaker spheroids can be tissue-engineered. The TBX18 induced pacemakers (sphTBX18) pace autonomously and drive the contraction of neighboring myocardium in vitro. TBX18 spheroids demonstrate the need for reduced electrical coupling and physical separation from the neighboring ventricular myocytes, successfully recapitulating a key design principle of the native SAN. β-Adrenergic stimulation as well as electrical uncoupling significantly increase sphTBX18s' ability to pace-and-drive the neighboring myocardium. This model represents the first platform to test design principles of the SAN for mechanistic understanding and to better engineer biological pacemakers for therapeutic translation.

Indexed as

biological pacemakerscell and tissue engineeringsinoatrial nodessource–sink mismatchTBX18

Identifiers

PMID31763140
PMCPMC6864514
OpenAlexW2979176875

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.