Silvia Bonanno

I was born in Genoa on February 2, 1985; I gained my Medical Degree in 2009 at the University of Genoa with a thesis about antinflammatory effect of mesnchymal stem cells in Multiple Sclerosis. I attended my post-graduation training at the Neurological Research Institute C. Besta of Milan (Neuroimmunology and Neuromuscular Unit) continuing basic reasearch activity, alongsidemy clinical education; in 2016 I graduated in Neurology at University of Milan Bicocca (UNIMIB) defending a thesis about microRNAs involved in a juvenile motorn neuron disease. As a physician scientist, I aim to bridge the gap between basic research and clinical applications. In this frame, in October 2015, I started the PhD school in Neuroscience at UNIMIB and, since October 2016, I’ve been attending at ALS Weinberg Center, Thomas Jefferson University, Philadelphia (Pennsylvania). Here, under the supervision of Prof. Piera Pasinelli, I’m learning to develop new patient specific in vitro models for the study of Amyotrophic Lateral Sclerosis.

RESEARCH PROJECT

FM19G11 for the treatment of ALS in the G93A-SOD1 mouse model by promoting stem cell-mediated spinal cord regeneration

  • Track: Experimental Neuroscience
  • Tutor: Renato Mantegazza

Amyotrophic lateral sclerosis (ALS) is a fatal untreatable disease caused by motor neuron (MN) degeneration in motor cortex, brainstem and spinal cord. Two forms of ALS are recognized: sporadic (SALS) and familial (FALS), both characterized by similar pathological alterations. 20% of FALS are due to mutations in the SOD1 gene. The G93A-SOD1 mouse over-expresses the human mutated SOD1 gene and presents clinical symptoms and neuropathological features that mimic those of FALS.  

The vulnerability of MN cells arises from a combination of several mechanisms, such as protein misfolding and aggregation, mitochondrial dysfunction, oxidative damage, defective axonal transport, excitotoxicity, and impaired non-neuronal neighboring cells (e.g. astrocytes, microglia, muscle cells) influence. Among all these effectors, there is still no clear definition about which are the primary or secondary players, and the key question about therapeutic interventions remains mostly unresolved.

My project stems from Dr. Moreno-Manzano work about the recently identified compound FM19G11 which showed neuroprotective properties, by preserving neuronal tissue and reducing astroglial reaction in a spinal cord injury (SCI) model. Importantly, in vivo administration of FM19G11 significantly favored functional locomotion recovery in the SCI acute model. The mechanism of action of FM19G11 is related to its metabolic effect by increasing ATP synthesis and improving survival rates of ependymal stem progenitor cells (epSPCs) derived from spinal cord. When epSPCs are activated either by FM19G11 or by the inflammatory mediators, they show a better life-span and an improved MN differentiation rate.

Our group has developed a cell culture model deriving epSPCs from G93A-SOD1 spinal cord.

My project aims are: 1.To investigate in vitro FM19G11 effect on ALS G93A-SOD1-derived epSPCs, focusing on the molecular mechanisms involved in survival rate of stem cells and their MN differentiation rate. 2. To evaluate the efficacy of FM19G11 in modifying the disease progression by fostering MN regeneration in G93A-SOD1 mice; 3. To compare different routes of administration of the FM19G11 compound for the delivery in G93A-SOD1 mice; 4. To define FM19G11 mechanisms of action on stem-cell regeneration in G93A-SOD1 mice al different time points of treatment.

ABROAD PERIOD

In the frame of the PhD program, and of the international mobility project Exchange Extra-UE set up by University of Milano-Bicocca for internships outside Europe, I’ve been working since October 2016 at the laboratory and multidisciplinary clinic of the ALS Weinberg Center at Thomas Jefferson University of Philadelphia (Pennsylvania). Here, ), under the supervision of Prof. Piera Pasinelli , I’m learning techniques to develop new patient specific in vitro models that I envisage will allow meaningful advancements in ALS comprehension and patients-oriented health care.

RECENT PUBLICATIONS AND CONGRESSES

Publications

Congresses

  • Altered expression patterns of neural- and cell cycle-related miRNAs and their predicted target genes in G93A-SOD1 mouse brain regions. Bonanno S, Marcuzzo S, Barzago C, Cavalcante P, Kapetis D, Bernasconi P and Mantegazza R. Poster Presenter at Federation European Neuroscience Society (FENS) Forum Congress. Milan 2014.
  • Diffusion magnetic resonance imaging: a promising novel tool for early detection and monitoring of motor neuron degeneration in ALS. Marcuzzo S, Moreno-Manzano V, Zucca I, Bigini M, Scotti A, Bonanno S, Galbardi B, Kapetis D, Bernasconi P and Mantegazza R. Poster Presenter at International Congress on Neuromuscular Diseases (ICNMD). Nice 2014.
  • Neural stem cell activation in the subventricular zone and hippocampus of G93A-SOD1 mice: the microRNA up-regulation. Bonanno S, Marcuzzo S, Barzago C, Cavalcante P, Kapetis D, Bernasconi P and Mantegazza R. Poster Presenter at Congresso Nazionale Società Italiana di Neuroscienze (SINS). Roma 2013.

FURTHER INFO

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