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Invasiveness and metastasis of retinoblastoma in an orthotopic zebrafish tumor model
Sun Yat Sen University, Peoples R China; Karolinska Institute, Sweden.
Karolinska Institute, Sweden; Shandong University, Peoples R China.
Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Karolinska Institute, Sweden.
Karolinska Institute, Sweden.
Vise andre og tillknytning
2015 (engelsk)Inngår i: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 5, nr 10351Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Retinoblastoma is a highly invasive malignant tumor that often invades the brain and metastasizes to distal organs through the blood stream. Invasiveness and metastasis of retinoblastoma can occur at the early stage of tumor development. However, an optimal preclinical model to study retinoblastoma invasiveness and metastasis in relation to drug treatment has not been developed. Here, we developed an orthotopic zebrafish model in which retinoblastoma invasion and metastasis can be monitored at a single cell level. We took the advantages of immune privilege and transparent nature of developing zebrafish embryos. Intravitreal implantation of color-coded retinoblastoma cells allowed us to kinetically monitor tumor cell invasion and metastasis. Further, interactions between retinoblastoma cells and surrounding microvasculatures were studied using a transgenic zebrafish that exhibited green fluorescent signals in blood vessels. We discovered that tumor cells invaded neighboring tissues and blood stream when primary tumors were at the microscopic sizes. These findings demonstrate that retinoblastoma metastasis occurs at the early stage and antiangiogenic drugs such as Vegf morpholino and sunitinib could potentially interfere with tumor invasiveness and metastasis. Thus, this orthotopic retinoblastoma model offers a new and unique opportunity to study the early events of tumor invasion, metastasis and drug responses.

sted, utgiver, år, opplag, sider
Nature Publishing Group: Open Access Journals - Option C / Nature Publishing Group , 2015. Vol. 5, nr 10351
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Identifikatorer
URN: urn:nbn:se:liu:diva-120338DOI: 10.1038/srep10351ISI: 000357861300001PubMedID: 26169357OAI: oai:DiVA.org:liu-120338DiVA, id: diva2:843906
Merknad

Funding Agencies|Swedish Research Council; Swedish Cancer Foundation; Karolinska Institute Foundation; Karolinska Institute distinguished professor award; Torsten Soderbergs foundation; Novo Nordisk Foundation; European Research Council (ERC) advanced grant ANGIOFAT [250021]

Tilgjengelig fra: 2015-07-31 Laget: 2015-07-31 Sist oppdatert: 2017-12-04

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