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Loss of Sfrp2 contributes to the neurological disorders related with morphine withdrawal via Wnt/β-catenin signaling
- Source :
- Behavioural Brain Research. 359:609-618
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Morphine administration is a medical problem characterized by compulsive opioid use that causes terrible negative consequences. The exact mechanisms of morphine-induced dependence and morphine withdrawal symptoms remain unclear. Recent studies have revealed that the upregulation of Wnt/β-catenin signaling plays important roles in morphine exposure and morphine withdrawal. Secreted frizzled-related protein 2 (Sfrp2) can prevent the activation of Wnt/β-catenin signaling by competing with the Frizzled receptor for Wnt ligands. We conducted this study aimed to evaluate the effect of iatrogenic trauma induced by stereotactic surgery and the protective effect of stereotaxic Sfrp2 injection on morphine withdrawal symptoms in Male Sprague Dawley (SD) rats. Many techniques including western blot analysis and immunoprecipitation were used. Anxiety-related behaviors, morphine withdrawal syndrome, and dendritic spines were also examined in male SD rats after morphine treatment and stereotaxic injection of Sfrp2. Western blot results suggested that Wnt signaling was activated in the nucleus accumbens of SD rats suffering from morphine withdrawal and that Sfrp2 attenuated the overexpression of Wnt signaling. Similarly, the withdrawal-like symptoms of morphine dependent rats were abrogated by intracerebral Sfrp2 injection. The iatrogenic trauma induced by stereotactic surgery showed no influence on the Wnt signaling and withdrawal-like symptoms. Moreover, the results of Golgi-cox staining and DiI staining indicated that the damage on proximal spine density caused by morphine treatment was restored by intracerebral Sfrp2 injection. Together, the data presented here indicated that Sfrp2 abrogated the neurological disorders and loss of proximal spine related with morphine withdrawal via Wnt/β-catenin signaling.
- Subjects :
- Male
Narcotics
medicine.medical_specialty
Frizzled
Dendritic spine
Immunoprecipitation
Dendritic Spines
Primary Cell Culture
Nucleus accumbens
Nucleus Accumbens
Rats, Sprague-Dawley
03 medical and health sciences
Behavioral Neuroscience
0302 clinical medicine
Western blot
Downregulation and upregulation
Internal medicine
medicine
Animals
Wnt Signaling Pathway
Cells, Cultured
beta Catenin
030304 developmental biology
0303 health sciences
Morphine
medicine.diagnostic_test
business.industry
Wnt signaling pathway
Membrane Proteins
Substance Withdrawal Syndrome
Endocrinology
Gene Expression Regulation
business
Morphine Dependence
030217 neurology & neurosurgery
medicine.drug
Subjects
Details
- ISSN :
- 01664328
- Volume :
- 359
- Database :
- OpenAIRE
- Journal :
- Behavioural Brain Research
- Accession number :
- edsair.doi.dedup.....80d43afa7fabb5e4d1c65d7c8a2cc6bb