Axonal Lysosomal Assays for Characterizing the Effects of LRRK2 G2019S

The degeneration of axon terminals before the soma, referred to as "dying back", is a feature of Parkinson's disease (PD). Axonal assays are needed to model early PD pathogenesis as well as identify protective therapeutics. We hypothesized that defects in axon lysosomal trafficking as well as injury repair might be important contributing factors to "dying back" pathology in PD. Since primary human PD neurons are inaccessible, we developed assays to quantify axonal trafficking and injury repair using induced pluripotent stem cell (iPSC)-derived neurons with LRRK2 G2019S, which is one of the most common known PD mutations, and isogenic controls. We observed a subtle axonal trafficking phenotype that was partially rescued by a LRRK2 inhibitor. Mutant LRRK2 neurons showed increased phosphorylated Rab10-positive lysosomes, and lysosomal membrane damage increased LRRK2-dependent Rab10 phosphorylation. Neurons with mutant LRRK2 showed a transient increase in lysosomes at axotomy injury sites. This was a pilot study that used two patient-derived lines to develop its methodology; we observed subtle phenotypes that might correlate with heterogeneity in LRRK2-PD patients. Further analysis using additional iPSC lines is needed. Therefore, our axonal lysosomal assays can potentially be used to characterize early PD pathogenesis and test possible therapeutics.

Hellenic Alliance for Metastatic Breast Cancer: A Platform of Support, a Platform for Life

Background and context: W4O-Hellas (Women for Oncology-Hellas, a network of women professionals in oncology) and K.E.F.I. (an association of cancer patients) joined forces to create the “Hellenic Alliance for Metastatic Breast Cancer”, a project awarded through the SPARC initiative. The project is consisting among others, on creating, promoting and maintaining a Web-based platform of education, information, communication, advocacy and support for MBC patients in Greece. Aim: The aim of the platform is to provide education at patients and caregivers on various aspects concerning the disease, from diagnosis to palliative care, the available medical facilities, social services, benefits and allowances, clinical trials and issues concerning quality of life and psychological support. Strategy/Tactics: The development of an innovative Web-based tool was included in the “Hellenic Alliance for Metastatic Breast Cancer” project. It was overseen by a steering committee with W4O-Hellas and K.E.F.I. representatives, journalists, health economics advisors and state representatives. A support team was also created, to run and update the platform. Program/Policy process: The platform (“w4life.gr” reading “women for life” or “life for women with stage 4 disease”) is functional since June 2016 and was officially presented to the public on November 2016. The site´s structure is consisting of the main sections and an online forum. The sections contain information about the disease, the access to doctors, medical facilities, social services and patient groups, quality of life, nutrition and exercise issues, patient guidance and clinical trials available in Greece. The online forum is accessible 24 hours per day, and provides information and update about the network´s actions and upcoming seminars and forums. There is also a patient support direct line available on weekdays and access to other useful links. An online survey measuring quality of life data are running through the platform and the results will be presented in the near future. Since last year, a mobile application was also created aiming to an easier and user friendly access. Outcomes: By March 2018, the platform had 27,018 page views, 10,416 users who completed 13,020 sessions, with average session duration 2:23 minutes and bounce rate 74.54%. w4life received two awards from the Boussias-Health Care Business Awards-2017. The Gold Award, in the e-Health category digital applications for information and integrated patient care and a Silver Award for actions aimed at information, awareness, and prevention. What was learned: During the severe Hellenic socioeconomic crisis we have found that an alternative approach, as the above described, of dedicated oncologists toward their patients is needed, easy to use, helpful and sustainable and can provide important information and comfort to women with mBC their families and caregivers.