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2017 ; 9
(4
): 431-441
Nephropedia Template TP
gab.com Text
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English Wikipedia
The Sydney Heart Bank: improving translational research while eliminating or
reducing the use of animal models of human heart disease
#MMPMID28808947
Dos Remedios CG
; Lal SP
; Li A
; McNamara J
; Keogh A
; Macdonald PS
; Cooke R
; Ehler E
; Knöll R
; Marston SB
; Stelzer J
; Granzier H
; Bezzina C
; van Dijk S
; De Man F
; Stienen GJM
; Odeberg J
; Pontén F
; Linke WA
; Linke W
; van der Velden J
Biophys Rev
2017[Aug]; 9
(4
): 431-441
PMID28808947
show ga
The Sydney Heart Bank (SHB) is one of the largest human heart tissue banks in
existence. Its mission is to provide high-quality human heart tissue for research
into the molecular basis of human heart failure by working collaboratively with
experts in this field. We argue that, by comparing tissues from failing human
hearts with age-matched non-failing healthy donor hearts, the results will be
more relevant than research using animal models, particularly if their physiology
is very different from humans. Tissue from heart surgery must generally be used
soon after collection or it significantly deteriorates. Freezing is an option but
it raises concerns that freezing causes substantial damage at the cellular and
molecular level. The SHB contains failing samples from heart transplant patients
and others who provided informed consent for the use of their tissue for
research. All samples are cryopreserved in liquid nitrogen within 40 min of their
removal from the patient, and in less than 5-10 min in the case of coronary
arteries and left ventricle samples. To date, the SHB has collected tissue from
about 450 failing hearts (>15,000 samples) from patients with a wide range of
etiologies as well as increasing numbers of cardiomyectomy samples from patients
with hypertrophic cardiomyopathy. The Bank also has hearts from over 120 healthy
organ donors whose hearts, for a variety of reasons (mainly tissue-type
incompatibility with waiting heart transplant recipients), could not be used for
transplantation. Donor hearts were collected by the St Vincent's Hospital Heart
and Lung transplantation team from local hospitals or within a 4-h jet flight
from Sydney. They were flushed with chilled cardioplegic solution and transported
to Sydney where they were quickly cryopreserved in small samples. Failing and/or
donor samples have been used by more than 60 research teams around the world, and
have resulted in more than 100 research papers. The tissues most commonly
requested are from donor left ventricles, but right ventricles, atria,
interventricular system, and coronary arteries vessels have also been reported.
All tissues are stored for long-term use in liquid N or vapor (170-180 °C), and
are shipped under nitrogen vapor to avoid degradation of sensitive molecules such
as RNAs and giant proteins. We present evidence that the availability of these
human heart samples has contributed to a reduction in the use of animal models of
human heart failure.