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Evaluating the effect of crotoxin-nanostructured silica SBA-15 complex in chronic pain: immunomodulatory, antinociceptive and antiinflammatory aspects

Grant number: 15/01254-1
Support type:Regular Research Grants
Duration: June 01, 2015 - November 30, 2017
Field of knowledge:Biological Sciences - Pharmacology
Principal Investigator:Gisele Picolo
Grantee:Gisele Picolo
Home Institution: Instituto Butantan. Secretaria da Saúde (São Paulo - Estado). São Paulo , SP, Brazil

Abstract

Chronic pain, when compared with other diseases, is one of the most disabling and one type of pain that generates higher costs to healthcare services, becoming a public health problem. This condition may have an inflammatory origin or can be developed due to peripheral nerve injury, and it is often associated with other disorders such as multiple sclerosis (an example of an autoimmune disorder origin). Chronic pain is characterized by sensory alterations (nociception) and other symptoms such as lethargy, depression and anxiety, which features a classic response of systemic disease, suggesting an underlying immune activity. Despite the improvements in chronic pain-related research, its treatment still presents serious difficulties, since, even with the administration of pharmacological treatment there is no complete reversal of the pain condition. In addition, there are constant reports of patients who suffer with undesirable adverse effects. Therefore, studies related to the development of new treatments for this pathology are necessary. It is known that crotoxin, despite the toxic effect, presents at low doses immunomodulatory, anti-inflammatory, antitumor and antinociceptive effects, which makes it a potential drug for the treatment of chronic pain. It is also known that the nanostructured silica SBA-15, when used as an adjuvant, can reduces the toxicity and promotes and increase in the immune response to different compounds. Thus, the aim of this study is to evaluate whether crotoxin, when coupled to silica SBA-15, has its toxic effect decreased and its analgesic effect increased, also evaluating its interference on the immune and inflammatory responses in models of Partial Sciatic Nerve Ligation (PSNL) and Experimental Autoimmune Encephalomyelitis (EAE). (AU)

Articles published in Agência FAPESP Newsletter about the research grant
Novel formulation permits use of toxin extracted from rattlesnake venom to treat chronic pain 
Articles published in other media outlets (41 total):
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Toxina de veneno de cascavel consegue tratar dor crônica 
Nova formulação permite usar toxina do veneno da cascavel para tratar dor crônica 
Nova formulação permite usar toxina do veneno da cascavel para tratar dor crônica 
Nova formulação permite usar toxina do veneno da cascavel para tratar dor crônica 
Veneno de serpiente de cascabel para combatir el dolor crónico 
Novel formulation permits use of toxin from rattlesnake venom to treat chronic pain 
Una innovación hace posible aplicar el veneno de la serpiente de cascabel para tratar el dolor crónico 
Una innovación hace posible aplicar el veneno de la serpiente de cascabel para tratar el dolor crónico 
Veneno de serpiente cascabel para tratar el dolor crónico 
Nueva formulación de Crotoxina para tratar el dolor crónico 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Logran mejor efecto analgésico de la crotoxina al encapsularla en sílice nanoestructurada 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Eurasia Review: Using Toxin From Rattlesnake Venom To Treat Chronic Pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Using Toxin From Rattlesnake Venom To Treat Chronic Pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Novel formulation allows use of toxin from rattlesnake venom to control neuropathic pain 
Using Toxin From Rattlesnake Venom To Treat Chronic Pain 
Novel formulation permits use of toxin from rattlesnake venom to treat chronic pain 
Novel formulation permits use of toxin from rattlesnake venom to treat chronic pain 
Novel formulation permits use of toxin from rattlesnake venom to treat chronic pain 
Novel formulation permits use of toxin from rattlesnake venom to treat chronic pain 
Novel formulation permits use of toxin from rattlesnake venom to treat chronic pain 
Novel formulation permits use of toxin from rattlesnake venom to treat chronic pain 
Novel formulation permits use of toxin from rattlesnake venom to treat chronic pain 

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SANT'ANNA, MORENA BRAZIL; RIBEIRO LOPES, FLAVIA SOUZA; KIMURA, LOUISE FAGGIONATO; GIARDINI, ALINE CAROLINA; SANT'ANNA, OSVALDO AUGUSTO; PICOLO, GISELE. Crotoxin Conjugated to SBA-15 Nanostructured Mesoporous Silica Induces Long-Last Analgesic Effect in the Neuropathic Pain Model in Mice. TOXINS, v. 11, n. 12 DEC 2019. Web of Science Citations: 0.
ZAMBELLI, VANESSA O.; PICOLO, GISELE; FERNANDES, CARLOS A. H.; FONTES, MARCOS R. M.; CURY, YARA. Secreted Phospholipases A(2) from Animal Venoms in Pain and Analgesia. TOXINS, v. 9, n. 12 DEC 2017. Web of Science Citations: 10.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.