“Neurogenesis plays an indispensable role in the formation of the nervous system during development. The discovery that the adult brain still maintains neurogenic niches that allow the continued production of new cells after birth has changed the field of neuroscience. It has also opened a new venue of opportunities for the treatment of central nervous system disorders related to neuronal loss. This chapter has reviewed the studies showing that genetic or pharmacological manipulation of cannabinoid receptors (CB1 and CB2) or the enzymes responsible for endocannabinoid metabolism modify/regulate cell proliferation and neurogenesis during development and in the adult brain. A better characterization of the mechanisms involved in these effects could contribute to the development of new therapeutic alternatives to neurodegenerative and psychiatric disorders.” https://link.springer.com/chapter/10.1007/978-3-319-49343-5_6?fbclid=IwAR1yxGqvrq_9Zva3HLEqjh2WrNRTxPN6Hy_IO8l2IN8v9BCNBG2jDks9N1w]]>
Tag Archives: neurogenesis
Activation of GPR55 induces neuroprotection of hippocampal neurogenesis and immune responses of neural stem cells following chronic, systemic inflammation.
“New neurons are continuously produced by neural stem cells (NSCs) within the adult hippocampus. Numerous diseases, including major depressive disorder and HIV-1 associated neurocognitive disorder, are associated with decreased rates of adult neurogenesis. A hallmark of these conditions is a chronic release of neuroinflammatory mediators by activated resident glia.
Recent studies have shown a neuroprotective role on NSCs of cannabinoid receptor activation. Yet, little is known about the effects of GPR55, a candidate cannabinoid receptor, activation on reductions of neurogenesis in response to inflammatory insult.
In the present study, we examined NSCs exposed to IL-1β in vitro to assess inflammation-caused effects on NSC differentiation and the ability of GPR55 agonists to attenuate NSC injury.
Taken together, these results suggest a neuroprotective role of GPR55 activation on NSCs in vitro and in vivo and that GPR55 provides a novel therapeutic target against negative regulation of hippocampal neurogenesis by inflammatory insult.”
Neural stem cell lineage-specific cannabinoid type-1 receptor regulates neurogenesis and plasticity in the adult mouse hippocampus.
“Neural stem cells (NSCs) in the adult mouse hippocampus occur in a specific neurogenic niche, where a multitude of extracellular signaling molecules converges to regulate NSC proliferation as well as fate and functional integration. However, the underlying mechanisms how NSCs react to extrinsic signals and convert them to intracellular responses still remains elusive.
NSCs contain a functional endocannabinoid system, including the cannabinoid type-1 receptor (CB1).
To decipher whether CB1 regulates adult neurogenesis directly or indirectly in vivo, we performed NSC-specific conditional inactivation of CB1 by using triple-transgenic mice.
These results demonstrate that CB1 expressed in NSCs and their progeny controls neurogenesis in adult mice to regulate the NSC stem cell pool, dendritic morphology, activity-dependent plasticity, and behavior.”
https://www.ncbi.nlm.nih.gov/pubmed/30307491
https://academic.oup.com/cercor/advance-article/doi/10.1093/cercor/bhy258/5126794
“Cannabis has been widely used for various medical purposes since before year 2000 BC. Its effects are mediated by 
“The pathogenesis of Alzheimer’s disease (AD) is somewhat complex and has yet to be fully understood. As the effectiveness of the therapy currently available for AD has proved to be limited, the need for new drugs has become increasingly urgent.
The modulation of the endogenous 
“The endocannabinoid (eCB) signaling system is one of the most extensive of the mammalian brain. Despite the involvement of only few specific ligands and receptors, the system encompasses a vast diversity of triggered mechanisms and driven effects. It mediates a wide range of phenomena, including the regulation of transmitter release, neural excitability, synaptic plasticity, impulse spread, long-term neuronal potentiation, neurogenesis, cell death, lineage segregation, cell migration, inflammation, oxidative stress, nociception and the sleep cycle. It is also known to be involved in the processes of learning and memory formation. This extensive scope of action is attained by combining numerous variables. In a properly functioning brain, the correlations of these variables are kept in a strictly controlled balance; however, this balance is disrupted in many pathological conditions. However, while this balance is known to be disrupted by drugs in the case of addicts, the stimuli and mechanisms influencing the neurodegenerating brain remain elusive. This review examines the multiple factors and phenomena affecting the eCB signaling system in the brain. It evaluates techniques of controlling the eCB system to identify the obstacles in their applications and highlights the crucial interdependent variables that may influence biomedical research outcomes.”
“Repeated injections of cannabidiol (CBD), the major non-psychotomimetic compound present in the