Zebrafish Cryoinjury
Zebrafish Cryoinjury - Related Videos
11:12
Induction of Myocardial Infarction in Adult Zebrafish Using Cryoinjury
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Cited by 63 •
2012
Zebrafish represents a valuable model to study the mechanisms of heart regeneration in vertebrates. Here, we present a protocol for induction of a heart infarct in adult zebrafish using cryoinjury. This method results in massive cell death within 20% of the ventricular wall, similar to that observed in mammalian infarcts.
07:29
A Cryoinjury Model for Studying Skeletal Muscle Regeneration of the Caudal Peduncle in Adult Zebrafish
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Cited by 2 •
2023
This protocol describes a cryoinjury model to induce profound damage of several caudal myomeres in adult zebrafish. This method provides a new approach for studying skeletal muscle regeneration after severe loss of tissue in non-mammalian vertebrates.
06:29
A Cryoinjury Model to Study Myocardial Infarction in the Mouse
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Cited by 10 •
2019
This article demonstrates a model to study cardiac remodeling after myocardial cryoinjury in mice.
06:55
In vivo Electroporation of Morpholinos into the Adult Zebrafish Retina
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Cited by 42 •
2011
A method to conditionally knockdown a target protein’s expression in the adult zebrafish retina is described, which involves intravitreally injecting antisense morpholinos and electroporating them into the retina. The resulting protein is knocked down for several days, which allows testing the protein’s role in the regenerating or intact retina.
07:58
Nephrotoxin Microinjection in Zebrafish to Model Acute Kidney Injury
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Cited by 8 •
2016
Renal injuries incurred from nephrotoxins, which include drugs ranging from antibiotics to chemotherapeutics, can result in complex disorders whose pathogenesis remains incompletely understood. This protocol demonstrates how zebrafish can be used for disease modeling of these conditions, which can be applied to the identification of renoprotective measures.
FAQs
Localized freezing creates ice within the targeted tissue, producing cellular disruption rather than a diffuse injury throughout the animal. The damaged region then becomes a site of local inflammation, which links the initial physical lesion to subsequent repair responses. This sequence lets investigators examine how tissue reacts immediately after injury and how those responses develop during healing.
After thawing, cells that remain viable and signals recruited to the lesion coordinate wound healing and tissue remodeling. The recovery phase is therefore not simply the disappearance of ice damage; it provides a way to study how surviving cells interact with repair-associated signals as the injured area changes. In cardiac experiments, this phase reveals processes connected to restoration of heart muscle.
Zebrafish cardiac tissue can respond to damage through cardiomyocyte proliferation, meaning surviving heart-muscle cells can contribute to rebuilding the injured myocardium. Adult mammals, by contrast, form a persistent scar after comparable heart damage. This difference makes the model valuable for identifying regeneration mechanisms that are present in zebrafish but not effectively expressed in adult mammalian repair.
Because the lesion is produced in a defined region, researchers can relate observed inflammation, healing, and remodeling to a known site of damage. That spatial control helps distinguish injury-associated changes from unrelated changes elsewhere in the animal. It also supports controlled examination of how nearby surviving tissue participates in repair, particularly when the target is cardiac muscle.
A cryoprobe or chilled instrument is applied to the selected region to cool it rapidly. The tissue then thaws, leaving a localized lesion that can be followed through wound healing and remodeling. This sequence links the physical intervention with later biological observations, while the choice of target region determines which regenerative response is examined.
Zebrafish Cryoinjury is especially suited to studies of cardiac regeneration, repair-associated signaling, and tissue remodeling. By examining responses after a controlled heart lesion, investigators can ask how inflammation is followed by regenerative activity and cardiomyocyte proliferation. These observations support broader investigations of regeneration mechanisms and may inform potential strategies for regenerative medicine.