What is orthotopic mouse model?

What is orthotopic mouse model?

Orthotopic models involve implantation of tumor cell lines or patient-derived cell xenografts into animal tumor models into the organ or tissue which matches the tumor histotype. This creates a more disease-relevant environment for the assessment of tumor growth, which can be analyzed by optical imaging.

What is orthotopic injection?

Orthotopic injection of breast cancer cells is a powerful model to study all aspects of cancer growth. Implantation of these cells in the mammary fat pad of the mice should be carefully performed in order to prevent variation in tumor growth.

What is a mouse xenograft?

Abstract. Patient-derived xenograft (PDX) mouse models involve the direct transfer of fresh human tumor samples into immunodeficient mice following surgical resection or other medical operations. Gene expression in tumors may be maintained by serial passages of tumors from mouse to mouse.

What is murine cancer models?

The laboratory mouse (Mus musculus) is one of the best model systems for investigations of cancer biology in vivo, ranging from basic models such as xenograft tumours derived from tumour cell lines or explants, to highly complex genetically engineered mice (GEM).

What is orthotopic surgery?

Orthotopic procedures (from Greek orthos, straight + topos, place) are those occurring at the normal place. Examples include: Orthotopic liver transplantation, in which the previous liver is removed and the transplant is placed at that location in the body.

What are PDX models?

Patient-derived xenografts (PDX) are models of cancer where the tissue or cells from a patient’s tumor are implanted into an immunedeficient or humanized mouse. PDX models simulate human tumor biology allowing for natural cancer progression, and offer the most translational research model for evaluating efficacy.

What is syngeneic mouse model?

Syngeneic mouse models, also known as Allograft mouse tumor systems, consist of tumor tissues derived from the same genetic background as a given mouse strain. As the syngeneic mice retain intact immune systems, they are particularly relevant for studies of immunotherapies.

What is a patient derived xenograft model?

What is a xenograft in medical terms?

(ZEE-noh-graft) The transplant of an organ, tissue, or cells to an individual of another species.

What is a murine model?

Murine models have been used to study persistent viral infection and tumorigenesis induced by HTLV-1 protein expression through the use of transgenics, xenografts, and infection of humanized mice with the virus (73).

What is an orthotopic graft?

Orthotopic transplantation of ovarian tissue is defined as the surgical procedure in which the ovarian graft is transplanted back to the pelvic cavity where ovaries naturally reside.

What is orthotopic heart transplantation?

Orthotopic heart transplantation (OHT) is a well established and commonly utilized procedure for end-stage heart failure patients. Heterotopic heart transplantation (HHT) is a surgical procedure that allows the graft to be connected to the native heart in a parallel fashion.