Martina Iannaccone, Federica Titta, Enrica Serretiello, Marco Monfregola, Vittorio Gentile
{"title":"Possible physiopathological effects of the transglutaminase activity on the molecular mechanisms responsible for human neurodegenerative diseases.","authors":"Martina Iannaccone, Federica Titta, Enrica Serretiello, Marco Monfregola, Vittorio Gentile","doi":"10.2174/1574889809666141111160124","DOIUrl":"https://doi.org/10.2174/1574889809666141111160124","url":null,"abstract":"<p><p>Transglutaminases are a class of ubiquitous enzymes which catalyze post-translational modifications of proteins. The main activity of these enzymes is the cross-linking of glutaminyl residues of a protein/peptide substrate to lysyl residues of a protein/peptide co-substrate. In addition to lysyl residues, other second nucleophilic co-substrates may include monoamines or polyamines (to form mono- or bi-substituted /crosslinked adducts) or -OH groups (to form ester linkages). In absence of co-substrates, the nucleophile may be water, resulting in the net deamidation of the glutaminyl residue. Transglutaminase activity has been suggested to be involved in molecular mechanisms responsible for both physiological or pathological processes. Recently, transglutaminase activity has been shown to be responsible for a widespread human autoimmune disease, the Celiac Disease. Interestingly, neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, supranuclear palsy, Huntington's disease and other polyglutamine diseases, are characterized in part by aberrant cerebral transglutaminase activity and by increased cross-linked proteins in affected brains. This review focuses on the possible molecular mechanisms responsible for such diseases and on the possible therapeutic effects of transglutaminase inhibitors for patients with diseases characterized by aberrant transglutaminase activity. </p>","PeriodicalId":87737,"journal":{"name":"Recent patents on CNS drug discovery","volume":"9 2","pages":"76-84"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32806515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Orietta Staltari, Christian Leporini, Benedetto Caroleo, Emilio Russo, Antonio Siniscalchi, Giovambattista De Sarro, Luca Gallelli
{"title":"Drug-drug interactions: antiretroviral drugs and recreational drugs.","authors":"Orietta Staltari, Christian Leporini, Benedetto Caroleo, Emilio Russo, Antonio Siniscalchi, Giovambattista De Sarro, Luca Gallelli","doi":"10.2174/1574889809666141127101623","DOIUrl":"https://doi.org/10.2174/1574889809666141127101623","url":null,"abstract":"<p><p>With the advances in antiretroviral (ARV) therapy, patients with Human Immunodeficiency Virus (HIV) infection are living longer, however, some patients encounter co- morbidities which sometimes require treatment. Therefore, during the treatment with ARV drugs these patients could take several recreational drugs (e.g. amphetamines, hallucinogenes, opiates, or alcohol) with a possible development of drug-drug interactions (DDIs). In particular, Nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs/NtRTIs) are mainly excreted through the kidney and are not substrates of the cytochrome P450 or P-glycoprotein, therefore the DDIs during this treatment are minimal. In contrast, the other ARV drugs (i.e. non-nucleoside reversetranscriptase inhibitors, Protease inhibitors, Integrase inhibitors, chemokine receptor 5 antagonists and HIV-fusion inhibitors) are an important class of antiretroviral medications that are frequent components of HAART regimens but show several DDIs related to interaction with the cytochrome P450 or P-glycoprotein. In this paper we will review data concerning the possibility of DDI in HIV patients treated with ARV and taking recreational drugs. </p>","PeriodicalId":87737,"journal":{"name":"Recent patents on CNS drug discovery","volume":"9 3","pages":"153-63"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32841668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rafael Gonzalo-Gobernado, Lucia Calatrava-Ferreras, Juan Perucho, Diana Reimers, MarIa J Casarejos, Antonio S Herranz, Adriano Jimenez-Escrig, Juan J Diaz-Gil, Eulalia Bazan
{"title":"Liver growth factor as a tissue regenerating factor in neurodegenerative diseases.","authors":"Rafael Gonzalo-Gobernado, Lucia Calatrava-Ferreras, Juan Perucho, Diana Reimers, MarIa J Casarejos, Antonio S Herranz, Adriano Jimenez-Escrig, Juan J Diaz-Gil, Eulalia Bazan","doi":"10.2174/1574889809666141224123303","DOIUrl":"10.2174/1574889809666141224123303","url":null,"abstract":"<p><p>Liver growth factor (LGF) is a hepatic mitogen purified by our group in 1986. In the following years we demonstrated its activity both in \"in vivo\" and \"in vitro\" systems, stimulating hepatocytes mitogenesis as well as liver regeneration in several models of liver injury. Furthermore, we established its chemical composition (albumin-bilirubin complex) and its mitogenic actions in liver. From 2000 onwards we used LGF as a tissue regenerating factor in several models of extrahepatic diseases. The use of Liver growth factor as a neural tissue regenerator has been recently protected (Patent No US 2014/8,642,551 B2). LGF administration stimulates neurogenesis and neuron survival, promotes migration of newly generated neurons, and induces the outgrowth of striatal dopaminergic terminals in 6-hidroxydopamine-lesioned rats. Furthermore, LGF treatment raises striatal dopamine levels and protects dopaminergic neurons in hemiparkinsonian animals. LGF also stimulates survival of grafted foetal neural stem cells in the damaged striatum, reduces rotational behaviour and improves motor coordination. Interestingly, LGF also exerts a neuroprotective role both in an experimental model of cerebellar ataxia and in a model of Friedrich´s ataxia. Microglia seem to be the cellular target of LGF in the CNS. Moreover, the activity of the factor could be mediated by the stimulation of MAPK´s signalling pathway and by regulating critical proteins for cell survival, such as Bcl-2 and phospho-CREB. Since the factor shows neuroprotective and neurorestorative effects we propose LGF as a patented novel therapeutic tool that may be useful for the treatment of Parkinson´s disease and cerebellar ataxias. Currently, our studies have been extended to other neurological disorders such as Alzheimer's disease (Patent No: US 2014/0113859 A1). </p>","PeriodicalId":87737,"journal":{"name":"Recent patents on CNS drug discovery","volume":"9 3","pages":"173-80"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/63/68/RPCN-9-173.PMC4485410.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32930929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Katalin K Szalai, Gyula Beke, János Éles, Tamás Kitka, Péter Kovács, József Nagy, Sándor Farkas, András Boros
{"title":"Recent patents on novel MCH1 receptor antagonists as potential anti-obesity drugs.","authors":"Katalin K Szalai, Gyula Beke, János Éles, Tamás Kitka, Péter Kovács, József Nagy, Sándor Farkas, András Boros","doi":"10.2174/1574889809666140613115426","DOIUrl":"https://doi.org/10.2174/1574889809666140613115426","url":null,"abstract":"<p><p>Today, the 'obesity pandemic' is one of the biggest health issues around the world. Melanin-concentrating hormone (MCH), a hypothalamic neuropeptide, is one of the most potent, central stimulators of feeding and it also attenuates energy expenditure. Inhibitions of the MCH receptor, the melanin-concentrating hormone receptor-1 (MCHR1), has attracted considerable attention as a potential anti-obesity drug, during the last decade. Now, there are a large number of MCHR1 antagonists, pharmacological tools and clinical drug candidates that can provide clues to develop new structures with high potency and good pharmacokinetic profile. The function of MCHR1 in energy homeostasis, obesity, metabolic syndrome, mood disorders and inflammatory bowel disease is discussed. Relevant clinical trials and patent background information of the MCHR1 antagonists over the last 4 years are also reviewed. </p>","PeriodicalId":87737,"journal":{"name":"Recent patents on CNS drug discovery","volume":"9 2","pages":"122-40"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32421054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Da-Yong Lu, Ting-Ren Lu, Jin-Yu Che, Peng-Peng Zhu
{"title":"Genetic and bioinformatic studies of antidepressant drug therapeutic efficacy and toxicity: a current overview.","authors":"Da-Yong Lu, Ting-Ren Lu, Jin-Yu Che, Peng-Peng Zhu","doi":"10.2174/1574889810666150209103931","DOIUrl":"https://doi.org/10.2174/1574889810666150209103931","url":null,"abstract":"<p><p>Antidepressants can relief human depression and reduce human depressive symptoms. Nevertheless, some undesired clinical events, such as suicide have been emerging. As for 2004, the US and European regulatory agencies began implementing verification programs to assess the influence on suicidal behavior from the use of antidepressants such as selective serotonin reuptake inhibitors (SSRIs). With the increasing number of reported cases, several newly developed antidepressants were faced with withdrawal from the markets. Despite unclear cause of suicide, researches focusing on revealing the relationship between efficacy and toxicities of antidepressants have been initiated in China and US. To deal with these undesired clinical consequences, new initiatives and revolutionary ideas have been proposed and verified. Hopefully, therapeutic efficacies and outcomes by different types of antidepressant treatments can be improved for clinical trials in future. </p>","PeriodicalId":87737,"journal":{"name":"Recent patents on CNS drug discovery","volume":"9 3","pages":"193-9"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33372034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Franck C Chatelain, Michel Mazzuca, Marie-Madeleine Larroque, Veronique Rogemond, Jerome Honnorat, Florian Lesage
{"title":"An ion channel chip for diagnosis and prognosis of autoimmune neurological disorders.","authors":"Franck C Chatelain, Michel Mazzuca, Marie-Madeleine Larroque, Veronique Rogemond, Jerome Honnorat, Florian Lesage","doi":"10.2174/15748898113086660004","DOIUrl":"https://doi.org/10.2174/15748898113086660004","url":null,"abstract":"<p><p>Autoantibodies directed against ion channels and ionotropic receptors are associated with neuromuscular and neurological disorders. Their detection has proven to be useful for diagnosis, prognosis and treatment of these autoimmune syndromes. We have designed an ion channel chip for the systematic and rapid screening of antibodies directed against tens of different ion channels. The chip has been validated by confirming the presence of autoantibodies in patients with anti-NMDA receptor encephalitis. Such a chip will be useful for the diagnosis of already documented disorders, but also to identify new targets of autoimmunity and classification of the corresponding diseases. The article presents some promising patents on the Ion Channel Chip. </p>","PeriodicalId":87737,"journal":{"name":"Recent patents on CNS drug discovery","volume":"8 3","pages":"171-9"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31745086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modulation of the TRPV1 channel: current clinical trials and recent patents with focus on neurological conditions.","authors":"Luciano De Petrocellis, Aniello S Moriello","doi":"10.2174/1574889808666131209124012","DOIUrl":"https://doi.org/10.2174/1574889808666131209124012","url":null,"abstract":"<p><p>The transient receptor potential vanilloid-1 cat ion channel (TRPV1) is a nonspecific cation channel that can be activated by multiple endogenous stimuli and is expressed predominantly in sensory neurons, where it serves as a key nodal point in pain transmission pathways. In mammals, TRPV1 displays a wide tissue and cellular expression including both the peripheral and central nervous system, and in the latter it is now recognized to have a broader distribution and function. The pharmacological modulation of TRPV1 represents a strategy for the treatment of a variety of disease states, particularly those requiring chronic pain management. The validation of the TRPV1 channel as a therapeutic target for the control of pain and inflammatory conditions in a variety of diseases and injury states, has prompted the development of several TRPV1 agonists and antagonists that have entered clinical trials. Studies comparing the analgesic effects of TRPV1 antagonists with and without significant CNS penetration demonstrated that a dual (both peripheral and central) action is required to produce broad-spectrum analgesia. TRPV1 can be considered as a target for next generation analgesics. However, although a number of compounds are in clinical trials, the therapeutic utility of TRPV1 agonist and antagonists is yet to be validated unequivocally. This review summarizes current clinical trials and recent patents with small molecule TRPV1 agonists and antagonists with a focus on neurological conditions. </p>","PeriodicalId":87737,"journal":{"name":"Recent patents on CNS drug discovery","volume":"8 3","pages":"180-204"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31947907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vijay K Sharma, Kusuma Yohanna, Ghulam Kawnayn, Nabin Sarkar, Amit Batra
{"title":"Cerebrovascular ultrasonography for selecting patients for stroke intervention.","authors":"Vijay K Sharma, Kusuma Yohanna, Ghulam Kawnayn, Nabin Sarkar, Amit Batra","doi":"10.2174/1574889808666131209124519","DOIUrl":"https://doi.org/10.2174/1574889808666131209124519","url":null,"abstract":"<p><p>Currently employed diagnostic ultrasonography provides clinically relevant information about cerebral hemodynamic changes in patients with cerebrovascular ischemia. The information thus obtained is often helpful to the physician for establishing or confirming the diagnosis and prognosis as well as in taking appropriate therapeutic decisions. It is associated with a high temporal resolution and can be performed bedside for rapid diagnosis as well as prolonged monitoring. Transcranial Doppler (TCD) ultrasonography is a non-invasive diagnostic modality that provides physiological information regarding various intracranial hemodynamic alterations in patients with cerebrovascular ischemia. Extended applications of TCD are useful in understanding various pathophysiological mechanisms responsible for the clinical manifestations of cerebrovascular ischemia. Thus, TCD is aptly called as the 'stethoscope' of a stroke neurologist. Cerebrovascular ultrasonography is considered as an essential component of a comprehensive stroke center. We have reviewed various recent patents pertaining to the applications of cerebrovascular ultrasonography employed in the selection of stroke patients for various therapeutic interventions. </p>","PeriodicalId":87737,"journal":{"name":"Recent patents on CNS drug discovery","volume":"8 3","pages":"205-19"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31947908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Martina Iannaccone, Federica Titta, Enrica Serretiello, Giulia De Vivo, Antonio Martin, Vittorio Gentile
{"title":"Transglutaminase activity as a possible therapeutical target in neurodegenerative diseases.","authors":"Martina Iannaccone, Federica Titta, Enrica Serretiello, Giulia De Vivo, Antonio Martin, Vittorio Gentile","doi":"10.2174/1574889808666131128105630","DOIUrl":"https://doi.org/10.2174/1574889808666131128105630","url":null,"abstract":"<p><p>Transglutaminases are ubiquitous enzymes which catalyze post-translational modifications of proteins. The main activity of these enzymes is the cross-linking of glutaminyl residues of a protein/peptide substrate to lysyl residues of a protein/peptide co-substrate. In addition to lysyl residues, other second nucleophilic co-substrates may include monoamines or polyamines (to form mono- or bi-substituted /crosslinked adducts) or -OH groups (to form ester linkages). In absence of co-substrates, the nucleophile may be water, resulting in the net deamidation of the glutaminyl residue. Transglutaminase activity has been suggested to be involved in molecular mechanisms responsible for both physiological or pathological processes. For example, neurodegenerative diseases, such as Alzheimer's Disease, Parkinson's Disease, supranuclear palsy, Huntington's Disease and other polyglutamine diseases, are characterized in part by aberrant cerebral transglutaminase activity and by increased cross-linked proteins in affected brains. This review focuses on the possible molecular mechanisms responsible for such diseases and on the possible therapeutic effects of selective transglutaminase inhibitors for patients with diseases characterized by aberrant transglutaminase activity. The article presents some promising patents on the transglutaminase activity. </p>","PeriodicalId":87737,"journal":{"name":"Recent patents on CNS drug discovery","volume":"8 3","pages":"235-42"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31911413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Monica Gulati, Dimple S Chopra, Sachin K Singh, Vikrant Saluja, Purnima Pathak, Parikshit Bansal
{"title":"Patents on brain permeable nanoparticles.","authors":"Monica Gulati, Dimple S Chopra, Sachin K Singh, Vikrant Saluja, Purnima Pathak, Parikshit Bansal","doi":"10.2174/1574889808666131128105141","DOIUrl":"https://doi.org/10.2174/1574889808666131128105141","url":null,"abstract":"<p><p>The blood-brain barrier (BBB) presents a combination of physical and electrostatic barriers. It is a highly complex structure that tightly regulates the movement of molecules from the blood to brain, protecting it from injuries and diseases. However, the BBB also significantly precludes the delivery of drugs to the brain, thus, preventing the therapy of a number of neurological disorders like brain cancer, epilepsy, Alzheimer's disease, schizophrenia etc. Numerous drug delivery strategies have been developed to circumvent this barrier. Out of those, one popular approach is the use of nanoparticles. Nanoparticles form solid, colloidal drug delivery system that consists of macromolecular materials in which the active principle is dissolved, entrapped or encapsulated or onto which the active principle is adsorbed or attached. Brain targeted polymeric nanoparticles have been found to increase the therapeutic efficacy and reduce the toxicity for a large number of drugs. By coating the nanoparticles with surfactants, higher concentrations of the drugs can be delivered. The article presents various approaches used in design and delivery of nanoparticles to brain. It also reviews various patents that describe the use of nanoparticles to deliver various neurotherapeutics to brain. </p>","PeriodicalId":87737,"journal":{"name":"Recent patents on CNS drug discovery","volume":"8 3","pages":"220-34"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31911414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}