Apoptosis Imaging in Oncology by Means of Positron Emission Tomography: A Review.

To date, a wide variety of potential PET-apoptosis imaging radiopharmaceuticals targeting apoptosis-induced cell membrane asymmetry and acidification, as well as caspase 3 activation (substrates and inhibitors) have been developed with the purpose of rapidly assessing the response to treatment in cancer patients. Many of these probes were shown to specifically bind to their apoptotic target in vitro and their uptake to be enhanced in the in vivo-xenografted tumours in mice treated by means of chemotherapy, however, to a significantly variable degree. This may, in part, relate to the tumour model used given the fact that different tumour cell lines bear a different sensitivity to a similar chemotherapeutic agent, to differences in the chemotherapeutic concentration and exposure time, as well as to the different timing of imaging performed post-treatment.

PSMA expression on neovasculature of solid tumors.

The use of prostate specific membrane antigen (PSMA) binding agents, labelled with diagnostic and therapeutic radio-isotopes is opening the potential for a new era of personalized management of prostate carcinoma. A wide variety of immunohistochemistry studies have shown PSMA also to be upregulated on the endothelial cells of the neovasculature of a wide variety of other solid tumors where it may facilitate endothelial cell sprouting and invasion through its regulation of lytic proteases that have the ability to cleave the extracellular matrix. Similar to the introduction of PSMA-targeting theranostics in prostate carcinoma, overexpression of PSMA on newly formed tumor vessels may serve as a target for imaging and subsequent treatment of cancer through the use of agents that are capable of blocking PSMA in its function or through PSMA-mediated delivery of chemotherapeutics or radiation agents.

PSMA-Targeting Positron Emission Agents for Imaging Solid Tumors Other Than Non-Prostate Carcinoma: A Systematic Review.

Despite its name, prostate-specific membrane antigen (PSMA) has been shown using immunohistochemistry (IHC) to also be over-expressed in the tumor neovasculature of a wide variety of solid tumors other than prostate carcinoma. Accordingly, positron-emitting radiolabeled small molecules targeting PSMA, initially developed for positron emission tomography in prostate carcinomas, are currently being explored for their staging and restaging potential as an alternative imaging modality in other solid tumor types where 18-F-fluorodeoxyglucose (FDG)-PET imaging has low diagnostic accuracy. In this paper, the currently available literature in this field is reviewed.

An observational pilot study to evaluate the feasibility and quality of oncological home-hospitalization.

Purpose: The objective of this pilot study was to evaluate the feasibility of oncological home-hospitalization and to compare its quality with standard ambulatory hospital care in terms of patient-reported quality of life and related endpoints by means of a set of validated patient-reported outcome measures (PROMs).

Methods: An observational cohort study (clinicaltrials.gov identifier: NCT03073499) was conducted, allocating patients to (partial) home-hospitalization or standard ambulatory hospital care.

Organization, quality and cost of oncological home-hospitalization: A systematic review.

Background: Home-hospitalization might be a patient-centred approach facing the increasing burden of cancer on societies. This systematic review assessed how oncological home-hospitalization has been organized and to what extent its quality and costs were evaluated.

Results: Twenty-four papers describing parenteral cancer drug administration to adult patients in their homes were included.