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  1. Article: Genome-Wide Methylation Profiling in the Thalamus of Scrapie Sheep.

    Hernaiz, Adelaida / Sanz, Arianne / Sentre, Sara / Ranera, Beatriz / Lopez-Pérez, Oscar / Zaragoza, Pilar / Badiola, Juan J / Filali, Hicham / Bolea, Rosa / Toivonen, Janne M / Martín-Burriel, Inmaculada

    Frontiers in veterinary science

    2022  Volume 9, Page(s) 824677

    Abstract: Scrapie is a neurodegenerative disorder belonging to the group of transmissible spongiform encephalopathy (TSE). Scrapie occurs in sheep and goats, which are considered good natural animal models of these TSE. Changes in DNA methylation occur in the ... ...

    Abstract Scrapie is a neurodegenerative disorder belonging to the group of transmissible spongiform encephalopathy (TSE). Scrapie occurs in sheep and goats, which are considered good natural animal models of these TSE. Changes in DNA methylation occur in the central nervous system (CNS) of patients suffering from prion-like neurodegenerative diseases, such as Alzheimer's disease. Nevertheless, potential DNA methylation alterations have not yet been investigated in the CNS of any prion disease model or naturally infected cases, neither in humans nor in animals. Genome-wide DNA methylation patterns were studied in the thalamus obtained from sheep naturally infected with scrapie at a clinical stage (
    Language English
    Publishing date 2022-02-16
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2834243-4
    ISSN 2297-1769
    ISSN 2297-1769
    DOI 10.3389/fvets.2022.824677
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Cerebrospinal Fluid and Plasma Small Extracellular Vesicles and miRNAs as Biomarkers for Prion Diseases.

    López-Pérez, Óscar / Sanz-Rubio, David / Hernaiz, Adelaida / Betancor, Marina / Otero, Alicia / Castilla, Joaquín / Andréoletti, Olivier / Badiola, Juan José / Zaragoza, Pilar / Bolea, Rosa / Toivonen, Janne M / Martín-Burriel, Inmaculada

    International journal of molecular sciences

    2021  Volume 22, Issue 13

    Abstract: Diagnosis of transmissible spongiform encephalopathies (TSEs), or prion diseases, is based on the detection of proteinase K (PK)-resistant ... ...

    Abstract Diagnosis of transmissible spongiform encephalopathies (TSEs), or prion diseases, is based on the detection of proteinase K (PK)-resistant PrP
    MeSH term(s) Biomarkers ; Exosomes/metabolism ; Extracellular Vesicles/metabolism ; Extracellular Vesicles/ultrastructure ; MicroRNAs/blood ; MicroRNAs/cerebrospinal fluid ; MicroRNAs/genetics ; Prion Diseases/blood ; Prion Diseases/cerebrospinal fluid ; Prion Diseases/genetics ; Prion Diseases/metabolism
    Chemical Substances Biomarkers ; MicroRNAs
    Language English
    Publishing date 2021-06-25
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms22136822
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Circulating Cytokines Could Not Be Good Prognostic Biomarkers in a Mouse Model of Amyotrophic Lateral Sclerosis.

    Moreno-Martínez, Laura / de la Torre, Miriam / Toivonen, Janne M / Zaragoza, Pilar / García-Redondo, Alberto / Calvo, Ana Cristina / Osta, Rosario

    Frontiers in immunology

    2019  Volume 10, Page(s) 801

    Abstract: Background: ...

    Abstract Background:
    MeSH term(s) Amyotrophic Lateral Sclerosis/blood ; Amyotrophic Lateral Sclerosis/diagnosis ; Amyotrophic Lateral Sclerosis/mortality ; Animals ; Biomarkers ; Cytokines/blood ; Disease Models, Animal ; Disease Progression ; Female ; Male ; Mice ; Mice, Transgenic ; Prognosis
    Chemical Substances Biomarkers ; Cytokines
    Language English
    Publishing date 2019-04-12
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2019.00801
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Endocrine regulation of aging and reproduction in Drosophila.

    Toivonen, Janne M / Partridge, Linda

    Molecular and cellular endocrinology

    2008  Volume 299, Issue 1, Page(s) 39–50

    Abstract: Hormonal signals can modulate lifespan and reproductive capacity across the animal kingdom. The use of model organisms such as worms, flies and mice has been fundamentally important for aging research in the discovery of genetic alterations that can ... ...

    Abstract Hormonal signals can modulate lifespan and reproductive capacity across the animal kingdom. The use of model organisms such as worms, flies and mice has been fundamentally important for aging research in the discovery of genetic alterations that can extend healthy lifespan. The effects of mutations in the insulin and insulin-like growth factor-like signaling (IIS) pathways are evolutionarily conserved in that they can increase lifespan in all three animal models. Additionally, steroids and other lipophilic signaling molecules modulate lifespan in diverse organisms. Here we shall review how major hormonal pathways in the fruit fly Drosophila melanogaster interact to influence reproductive capacity and aging.
    MeSH term(s) Aging/physiology ; Animals ; Biogenic Amines/physiology ; Drosophila/physiology ; Endocrine System/physiology ; Insulin/physiology ; Models, Animal ; Models, Biological ; Reproduction/physiology ; Signal Transduction/physiology ; Somatomedins/physiology
    Chemical Substances Biogenic Amines ; Insulin ; Somatomedins
    Language English
    Publishing date 2008-07-17
    Publishing country Ireland
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 187438-x
    ISSN 1872-8057 ; 0303-7207
    ISSN (online) 1872-8057
    ISSN 0303-7207
    DOI 10.1016/j.mce.2008.07.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: MicroRNA Alterations in a Tg501 Mouse Model of Prion Disease.

    Toivonen, Janne M / Sanz-Rubio, David / López-Pérez, Óscar / Marín-Moreno, Alba / Bolea, Rosa / Osta, Rosario / Badiola, Juan J / Zaragoza, Pilar / Espinosa, Juan-Carlos / Torres, Juan-Maria / Martín-Burriel, Inmaculada

    Biomolecules

    2020  Volume 10, Issue 6

    Abstract: MicroRNAs (miRNAs) may contribute to the development and pathology of many neurodegenerative diseases, including prion diseases. They are also promising biomarker candidates due to their stability in body fluids. We investigated miRNA alterations in a ... ...

    Abstract MicroRNAs (miRNAs) may contribute to the development and pathology of many neurodegenerative diseases, including prion diseases. They are also promising biomarker candidates due to their stability in body fluids. We investigated miRNA alterations in a Tg501 mouse model of prion diseases that expresses a transgene encoding the goat prion protein (
    MeSH term(s) Animals ; Disease Models, Animal ; Gene Expression Profiling ; Gene Expression Regulation ; Gene Regulatory Networks ; Goat Diseases/genetics ; Goat Diseases/pathology ; Goats ; Mice ; Mice, Transgenic ; MicroRNAs/genetics ; Prion Diseases/genetics ; Prion Diseases/pathology ; Prion Diseases/veterinary ; Sequence Analysis, RNA
    Chemical Substances MicroRNAs
    Language English
    Publishing date 2020-06-15
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2701262-1
    ISSN 2218-273X ; 2218-273X
    ISSN (online) 2218-273X
    ISSN 2218-273X
    DOI 10.3390/biom10060908
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Xenobiotics that affect oxidative phosphorylation alter differentiation of human adipose-derived stem cells at concentrations that are found in human blood.

    Llobet, Laura / Toivonen, Janne M / Montoya, Julio / Ruiz-Pesini, Eduardo / López-Gallardo, Ester

    Disease models & mechanisms

    2015  Volume 8, Issue 11, Page(s) 1441–1455

    Abstract: Adipogenesis is accompanied by differentiation of adipose tissue-derived stem cells to adipocytes. As part of this differentiation, biogenesis of the oxidative phosphorylation system occurs. Many chemical compounds used in medicine, agriculture or other ... ...

    Abstract Adipogenesis is accompanied by differentiation of adipose tissue-derived stem cells to adipocytes. As part of this differentiation, biogenesis of the oxidative phosphorylation system occurs. Many chemical compounds used in medicine, agriculture or other human activities affect oxidative phosphorylation function. Therefore, these xenobiotics could alter adipogenesis. We have analyzed the effects on adipocyte differentiation of some xenobiotics that act on the oxidative phosphorylation system. The tested concentrations have been previously reported in human blood. Our results show that pharmaceutical drugs that decrease mitochondrial DNA replication, such as nucleoside reverse transcriptase inhibitors, or inhibitors of mitochondrial protein synthesis, such as ribosomal antibiotics, diminish adipocyte differentiation and leptin secretion. By contrast, the environmental chemical pollutant tributyltin chloride, which inhibits the ATP synthase of the oxidative phosphorylation system, can promote adipocyte differentiation and leptin secretion, leading to obesity and metabolic syndrome as postulated by the obesogen hypothesis.
    MeSH term(s) Adipocytes/drug effects ; Adipocytes/metabolism ; Adipocytes/secretion ; Adipogenesis/drug effects ; Adipose Tissue/cytology ; Cell Shape/drug effects ; Cells, Cultured ; DNA Replication/drug effects ; DNA, Mitochondrial/biosynthesis ; DNA, Mitochondrial/drug effects ; Humans ; Leptin/secretion ; Mitochondria/drug effects ; Mitochondria/metabolism ; Oxidative Phosphorylation/drug effects ; Phenotype ; Stem Cells/drug effects ; Stem Cells/metabolism ; Stem Cells/secretion ; Time Factors ; Trialkyltin Compounds/toxicity ; Xenobiotics/blood ; Xenobiotics/pharmacology ; Xenobiotics/toxicity
    Chemical Substances DNA, Mitochondrial ; Leptin ; Trialkyltin Compounds ; Xenobiotics ; tributyltin (4XDX163P3D)
    Language English
    Publishing date 2015-11
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1754-8411
    ISSN (online) 1754-8411
    DOI 10.1242/dmm.021774
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Tetanus toxin C-fragment: the courier and the cure?

    Toivonen, Janne M / Oliván, Sara / Osta, Rosario

    Toxins

    2010  Volume 2, Issue 11, Page(s) 2622–2644

    Abstract: In many neurological disorders strategies for a specific delivery of a biological activity from the periphery to the central nervous system (CNS) remains a considerable challenge for successful therapy. Reporter assays have established that the non-toxic ...

    Abstract In many neurological disorders strategies for a specific delivery of a biological activity from the periphery to the central nervous system (CNS) remains a considerable challenge for successful therapy. Reporter assays have established that the non-toxic C-fragment of tetanus toxin (TTC), provided either as protein or encoded by non-viral naked DNA plasmid, binds pre-synaptic motor neuron terminals and can facilitate the retrograde axonal transport of desired therapeutic molecules to the CNS. Alleviated symptoms in animal models of neurological diseases upon delivery of therapeutic molecules offer a hopeful prospect for TTC therapy. This review focuses on what has been learned on TTC-mediated neuronal targeting, and discusses the recent discovery that, instead of being merely a carrier molecule, TTC itself may well harbor neuroprotective properties.
    MeSH term(s) Animals ; Axonal Transport/drug effects ; Disease Models, Animal ; Gene Targeting ; Genetic Therapy ; Humans ; Molecular Targeted Therapy ; Motor Neuron Disease/drug therapy ; Motor Neuron Disease/genetics ; Motor Neurons/drug effects ; Neural Pathways/drug effects ; Neurodegenerative Diseases/drug therapy ; Neurodegenerative Diseases/genetics ; Neuromuscular Junction ; Neuroprotective Agents ; Peptide Fragments/genetics ; Peptide Fragments/therapeutic use ; Presynaptic Terminals/drug effects ; Tetanus Toxin/genetics ; Tetanus Toxin/therapeutic use
    Chemical Substances Neuroprotective Agents ; Peptide Fragments ; Tetanus Toxin ; tetanus toxin fragment C
    Language English
    Publishing date 2010-10-29
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2518395-3
    ISSN 2072-6651 ; 2072-6651
    ISSN (online) 2072-6651
    ISSN 2072-6651
    DOI 10.3390/toxins2112622
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Granulocyte Colony-Stimulating Factor Ameliorates Skeletal Muscle Dysfunction in Amyotrophic Lateral Sclerosis Mice and Improves Proliferation of SOD1-G93A Myoblasts in vitro.

    Rando, Amaya / Gasco, Samanta / de la Torre, Miriam / García-Redondo, Alberto / Zaragoza, Pilar / Toivonen, Janne M / Osta, Rosario

    Neuro-degenerative diseases

    2017  Volume 17, Issue 1, Page(s) 1–13

    Abstract: Background: Amyotrophic lateral sclerosis (ALS) causes loss of upper and lower motor neurons as well as skeletal muscle (SKM) dysfunction and atrophy. SKM is one of the tissues involved in the development of ALS pathology, and studies in a SOD1-G93A ... ...

    Abstract Background: Amyotrophic lateral sclerosis (ALS) causes loss of upper and lower motor neurons as well as skeletal muscle (SKM) dysfunction and atrophy. SKM is one of the tissues involved in the development of ALS pathology, and studies in a SOD1-G93A mouse model of ALS have demonstrated alterations in SKM degeneration/regeneration marker expression in vivo and defective mutant myoblast proliferation in vitro. Granulocyte colony-stimulating factor (G-CSF) has been shown to alleviate SOD1-G93A pathology. However, it is unknown whether G-CSF may have a direct effect on SKM or derived myoblasts.
    Objective: To investigate effects of G-CSF and its analog pegfilgrastim (PEGF) on SOD1-G93A- associated SKM markers in vivo and those of G-CSF on myoblast proliferation in vitro.
    Methods: The effect of PEGF treatment on hematopoietic stem cell mobilization, survival, and motor function was determined. RNA expression of SKM markers associated with mutant SOD1 expression was quantified in response to PEGF treatment in vivo, and the effect of G-CSF on the proliferation of myoblasts derived from mutant and control muscles was determined in vitro.
    Results: Positive effects of PEGF on hematopoietic stem cell mobilization, survival, and functional assays in SOD1-G93A animals were confirmed. In vivo PEGF treatment augmented the expression of its receptor Csf3r and alleviated typical markers for mutant SOD1 muscle. Additionally, G-CSF was found to directly increase the proliferation of SOD1-G93A, but not wild-type primary myoblasts in vitro.
    Conclusion: Our results support the beneficial role of the G-CSF analog PEGF in a SOD1-G93A model of ALS. Thus, G-CSF and its analogs may be directly beneficial in diseases where the SKM function is compromised.
    MeSH term(s) Amyotrophic Lateral Sclerosis/drug therapy ; Amyotrophic Lateral Sclerosis/metabolism ; Amyotrophic Lateral Sclerosis/pathology ; Animals ; Cell Proliferation/drug effects ; Cell Proliferation/physiology ; Cell Survival/drug effects ; Cell Survival/physiology ; Cells, Cultured ; Disease Models, Animal ; Female ; Filgrastim ; Granulocyte Colony-Stimulating Factor/pharmacology ; Hematopoietic Stem Cells/drug effects ; Hematopoietic Stem Cells/metabolism ; Humans ; Male ; Mice, Transgenic ; Motor Activity/drug effects ; Motor Activity/physiology ; Muscle, Skeletal/drug effects ; Muscle, Skeletal/metabolism ; Muscle, Skeletal/pathology ; Myoblasts/drug effects ; Myoblasts/metabolism ; Myoblasts/pathology ; Neuromuscular Agents/pharmacology ; Polyethylene Glycols ; Recombinant Proteins/pharmacology ; Superoxide Dismutase-1/genetics ; Superoxide Dismutase-1/metabolism
    Chemical Substances Neuromuscular Agents ; Recombinant Proteins ; SOD1 protein, human ; Granulocyte Colony-Stimulating Factor (143011-72-7) ; Polyethylene Glycols (30IQX730WE) ; pegfilgrastim (3A58010674) ; Superoxide Dismutase-1 (EC 1.15.1.1) ; Filgrastim (PVI5M0M1GW)
    Language English
    Publishing date 2017
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2143569-8
    ISSN 1660-2862 ; 1660-2854
    ISSN (online) 1660-2862
    ISSN 1660-2854
    DOI 10.1159/000446113
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: MicroRNA-206: a potential circulating biomarker candidate for amyotrophic lateral sclerosis.

    Toivonen, Janne M / Manzano, Raquel / Oliván, Sara / Zaragoza, Pilar / García-Redondo, Alberto / Osta, Rosario

    PloS one

    2014  Volume 9, Issue 2, Page(s) e89065

    Abstract: Amyotrophic lateral sclerosis (ALS) is a lethal motor neuron disease that progressively debilitates neuronal cells that control voluntary muscle activity. Biomarkers are urgently needed to facilitate ALS diagnosis and prognosis, and as indicators of ... ...

    Abstract Amyotrophic lateral sclerosis (ALS) is a lethal motor neuron disease that progressively debilitates neuronal cells that control voluntary muscle activity. Biomarkers are urgently needed to facilitate ALS diagnosis and prognosis, and as indicators of therapeutic response in clinical trials. microRNAs (miRNAs), small posttranscriptional modifiers of gene expression, are frequently altered in disease conditions. Besides their important regulatory role in variety of biological processes, miRNAs can also be released into the circulation by pathologically affected tissues and display remarkable stability in body fluids. In a mouse model of ALS that expresses mutated human superoxide dismutase 1 (SOD1-G93A) skeletal muscle is one of the tissues affected early by mutant SOD1 toxicity. To find biomarkers for ALS, we studied miRNA alterations from skeletal muscle and plasma of SOD1-G93A mice, and subsequently tested the levels of the affected miRNAs in the serum from human ALS patients. Fast-twitch and slow-twitch muscles from symptomatic SOD1-G93A mice (age 90 days) and their control littermates were first studied using miRNA microarrays and then evaluated with quantitative PCR from five age groups from neonatal to the terminal disease stage (10-120 days). Among those miRNA changed in various age/gender/muscle groups (miR-206, -1, -133a, -133b, -145, -21, -24), miR-206 was the only one consistently altered during the course of the disease pathology. In both sexes, mature miR-206 was increased in fast-twitch muscles preferably affected in the SOD1-G93A model, with highest expression towards the most severely affected animals. Importantly, miR-206 was also increased in the circulation of symptomatic animals and in a group of 12 definite ALS patients tested. We conclude that miR-206 is elevated in the circulation of symptomatic SOD1-G93A mice and possibly in human ALS patients. Although larger scale studies on ALS patients are warranted, miR-206 is a promising candidate biomarker for this motor neuron disease.
    MeSH term(s) Amyotrophic Lateral Sclerosis/blood ; Amyotrophic Lateral Sclerosis/genetics ; Animals ; Biomarkers/blood ; Female ; Gene Expression Regulation ; Humans ; Male ; Mice ; Mice, Transgenic ; MicroRNAs/blood ; MicroRNAs/genetics ; Middle Aged ; Muscle Fibers, Fast-Twitch/metabolism ; Muscle Fibers, Slow-Twitch/metabolism ; Superoxide Dismutase/genetics ; Superoxide Dismutase-1
    Chemical Substances Biomarkers ; MicroRNAs ; Mirn206 microRNA, mouse ; SOD1 protein, human ; Sod1 protein, mouse (EC 1.15.1.1) ; Superoxide Dismutase (EC 1.15.1.1) ; Superoxide Dismutase-1 (EC 1.15.1.1)
    Language English
    Publishing date 2014-02-20
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0089065
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Chemotherapeutic agent 5-fluorouracil increases survival of SOD1 mouse model of ALS.

    Rando, Amaya / de la Torre, Miriam / Martinez-Muriana, Anna / Zaragoza, Pilar / Musaro, Antonio / Hernández, Sara / Navarro, Xavier / Toivonen, Janne M / Osta, Rosario

    PloS one

    2019  Volume 14, Issue 1, Page(s) e0210752

    Abstract: Amyotrophic lateral sclerosis (ALS) is a lethal motor neuron disease with no cure. Currently there are only two ALS drugs approved by the FDA, both with a limited therapeutic effect. In the search for drug candidates for ALS, we studied the effect of ... ...

    Abstract Amyotrophic lateral sclerosis (ALS) is a lethal motor neuron disease with no cure. Currently there are only two ALS drugs approved by the FDA, both with a limited therapeutic effect. In the search for drug candidates for ALS, we studied the effect of known stem cell mobilizing agents (treatment) and antimetabolite 5-fluorouracil (5-FU) (anti-treatment) in SOD1G93A model of ALS. Surprisingly, we found that anti-cancer drug 5-FU increases lifespan, delays the disease onset and improves motor performance in ALS mice. Although we were not able to demonstrate the mechanistic basis of the beneficial 5-FU action in ALS mice, our findings suggest that 5-FU or similar drugs are possible drug candidates for the treatment of motor neuron diseases through drug repurposing.
    MeSH term(s) Amyotrophic Lateral Sclerosis/drug therapy ; Amyotrophic Lateral Sclerosis/genetics ; Amyotrophic Lateral Sclerosis/physiopathology ; Animals ; Antimetabolites, Antineoplastic/therapeutic use ; Bone Marrow Cells/drug effects ; Disease Models, Animal ; Drug Repositioning ; Female ; Fluorouracil/therapeutic use ; Humans ; Leukocyte Count ; Male ; Mice ; Mice, Transgenic ; Motor Activity/drug effects ; Motor Neurons/drug effects ; Motor Neurons/pathology ; Motor Neurons/physiology ; Muscles/drug effects ; Muscles/physiopathology ; Superoxide Dismutase/genetics
    Chemical Substances Antimetabolites, Antineoplastic ; SOD1 G93A protein (EC 1.15.1.1) ; Superoxide Dismutase (EC 1.15.1.1) ; Fluorouracil (U3P01618RT)
    Language English
    Publishing date 2019-01-14
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0210752
    Database MEDical Literature Analysis and Retrieval System OnLINE

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