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Patrick Aebischer

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Publications associées (172)

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Survival of encapsulated human primary fibroblasts and erythropoietin expression under xenogeneic conditions

Patrick Aebischer, Bernard Schneider, Nicole Déglon

Allogeneic cells are the most attractive source for cell transplantation, as the use of xenogeneic cells is hampered by safety concerns and the use of autologous cells involves practical difficulties. The immune rejection of allogeneic cells can be overcom ...

2004

An in vivo culture system for human embryos using an encapsulation technology: a pilot study

Patrick Aebischer, Nicolas Bouche

ACKGROUND: Animal studies have demonstrated better embryo development in vivo than in vitro. This pilot study tested the feasibility of using a novel in utero culture system (IUCS) to obtain normal human fertilization and embryo development. METHODS: The I ...

Oxford University Press2009

Progressive and selective striatal degeneration in primary neuronal cultures using lentiviral vector coding for a mutant huntingtin fragment

Patrick Aebischer, Nicole Déglon, Diana Zala, Valérie Gafner

A lentiviral vector expressing a mutant huntingtin protein (htt171-82Q) was used to generate a chronic model of Huntington's disease (HD) in rat primary striatal cultures. In this model, the majority of neurons expressed the transgene so that Western blot ...

2005

Long-term host unresponsiveness to encapsulated xenogeneic myoblasts after transient immunosuppression

Patrick Aebischer, Bernard Schneider

BACKGROUND: Encapsulating cells prevents the immune destruction of allogeneic cells in the subcutaneous site as well as allogeneic and xenogeneic cells in the central nervous system. However, when encapsulated xenogeneic cells are implanted s.c., they may ...

2000

Viral vector-mediated gene therapy for Parkinson's disease

Patrick Aebischer, Nicole Déglon

Parkinson's disease (PD) is a progressive neurodegenerative disorder that affects 1% of the population above the age of 60. The cause of the disease remains unknown. The histopathological hallmarks of the disease are intracytoplasmic Lewy bodies and dopami ...

2001

GDNF reduces drug-induced rotational behavior after medial forebrain bundle transection by a mechanism not involving striatal dopamine

Patrick Aebischer

Parkinson's disease (PD) is characterized by the progressive loss of the substantia nigra (SN) dopaminergic neurons projecting to the striatum. Neurotrophic factors may have the potential to prevent or slow down the degenerative process occurring in PD. To ...

1997

Rescue of motoneurons from axotomy-induced cell death by polymer encapsulated cells genetically engineered to release CNTF

Patrick Aebischer, Nicole Déglon

The neurodegenerative disease amyotrophic lateral sclerosis (ALS) results from the progressive loss of motoneurons, leading to death in a few years. Ciliary neurotrophic factor (CNTF), which decreases naturally occurring and axotomy-induced cell death, may ...

1996

Attenuation of 6-OHDA-induced neurotoxicity in glutathione peroxidase transgenic mice

Patrick Aebischer, Jean-Charles Bensadoun

Normal cellular metabolism produces oxidants which are neutralized within cells by antioxidant enzymes and other antioxidants. An imbalance between oxidants and antioxidants has been postulated to lead to the degeneration of specific populations of neurons ...

1998

Viral-based modelling and correction of neurodegenerative diseases by RNA interference

Patrick Aebischer

Experimental recapitulation of recessive human genetic neurodegenerative disease in rodents can be classically addressed through genetic disruption of the related gene. Although very informative, this specific gene targeting is restricted to mice and precl ...

2006

Chronic activation in presymptomatic amyotrophic lateral sclerosis (ALS) mice of a feedback loop involving Fas, Daxx, and FasL

Christel Catherine Françoise Voize, Patrick Aebischer

The reasons for the cellular specificity and slow progression of motoneuron diseases such as ALS are still poorly understood. We previously described a motoneuron-specific cell death pathway downstream of the Fas death receptor, in which synthesis of nitri ...

National Academy of Sciences2006

Glial cell line-derived neurotrophic factor released by synthetic guidance channels promotes facial nerve regeneration in the rat

Patrick Aebischer, Nicolas Bouche

Regeneration of the human facial nerve after lesion is often limited, leading to severe functional impairments, in particular when repair is delayed for several months, when cross-facial nerve grafts have to be performed, or in elderly patients. To improve ...

2002

An in vivo ultrahigh field 14.1 T (1) H-MRS study on 6-OHDA and α-synuclein-based rat models of Parkinson's disease: GABA as an early disease marker

Rolf Gruetter, Patrick Aebischer, Bernard Schneider, Mélanie Craveiro, Philippe Guillaume Coune, Meret Gaugler

The detection of Parkinson's disease (PD) in its preclinical stages prior to outright neurodegeneration is essential to the development of neuroprotective therapies and could reduce the number of misdiagnosed patients. However, early diagnosis is currently ...

Wiley-Blackwell2013

Neuroprotection by Hsp104 and Hsp27 in lentiviral-based rat models of Huntington's disease

Patrick Aebischer, Nicole Déglon, Valérie Gafner

Huntington's disease (HD) is an inherited neurodegenerative disorder caused by an expansion of glutamine repeats in the huntingtin (htt) protein. Abnormal protein folding and the accumulation of mutated htt are hallmarks of HD neuropathology. Heat-shock pr ...

Elsevier2007

Parkinson's Disease: Gene Therapies

Patrick Aebischer, Bernard Schneider, Philippe Guillaume Coune

With the recent development of effective gene delivery systems, gene therapy for the central nervous system is finding novel applications. Here, we review existing viral vectors and discuss gene therapy strategies that have been proposed for Parkinson's di ...

Cold Spring Harbor Lab Press, Publications Dept2012

Prevention of the initial host immuno-inflammatory response determines the long-term survival of encapsulated myoblasts genetically engineered for erythropoietin delivery

Patrick Aebischer, Bernard Schneider

The present study investigates the respective roles of both the host immune response and the metabolic requirements in determining the long-term survival of erythropoietin-secreting myoblasts within encapsulating polymer membranes. Hollow-fiber capsules lo ...

2003

Implication of the JNK pathway in a rat model of Huntington's disease

Patrick Aebischer, Nicole Déglon

Huntington's disease (HD) is a neurodegenerative disorder resulting from the expansion of a glutamine repeat (polyQ) in the N-terminus of the huntingtin (htt) protein. Expression of polyQ-containing proteins has been previously shown to induce various cell ...

2009

Human neural progenitors deliver glial cell line-derived neurotrophic factor to parkinsonian rodents and aged primates

Patrick Aebischer, Bernard Schneider

Glial cell line-derived neurotrophic factor (GDNF) has been shown to increase the survival and functioning of dopamine neurons in a variety of animal models and some recent human trials. However, delivery of any protein to the brain remains a challenge due ...

2006

Laminin oligopeptide derivatized agarose gels allow three-dimensional neurite extension in vitro

Patrick Aebischer

The phenotypic expression of various neural cells is influenced by extracellular matrix (ECM) molecules. This study aims to develop a three-dimensional gel tailored to support neurite extension from neural cells. Laminin-derived (LN) oligopeptides CDP-GYIG ...

1995

Embryonic substantia nigra grafts in the mesencephalon send neurites to the host striatum in non-human primate after overexpression of GDNF

Patrick Aebischer

In spite of partial success in treating Parkinson's disease by using ectopically placed grafts of dopamine-producing cells, restoration of the original neuroanatomical circuits, if possible, might work better. Previous evidence of normal anatomic projectio ...

2009

The mitophagy activator urolithin A is safe and induces a molecular signature of improved mitochondrial and cellular health in humans

Johan Auwerx, Patrick Aebischer, Dongryeol Ryu, Pénélope Andreux

Urolithin A (UA) is a natural dietary, microflora-derived metabolite shown to stimulate mitophagy and improve muscle health in old animals and in preclinical models of aging(1). Here, we report the results of a first-in-human clinical trial in which we adm ...

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