What isCARTdrug The CART peptide, also known as the Cocaine- and Amphetamine-Regulated Transcript peptide, is a significant neuropeptide that plays a crucial role in various physiological processes, particularly those related to reward, appetite, and body weight regulationCocaine-and Amphetamine Regulated Transcript (CART .... Widely distributed throughout the central nervous system (CNS), CART peptides are expressed in brain regions intrinsically linked to reward pathways, influencing behaviors such as food intake and the response to addictive substances. Understanding the functions of this peptide is key to unraveling complex neurological and metabolic processes.
Initially identified in studies investigating the effects of cocaine and amphetamines, the CART peptide has since been recognized for its broader influence. It acts as both a neurotransmitter and a hormone, signaling within the brain and even reaching the periphery via the endocrine and neuroendocrine systems. Its involvement in regulating appetite makes it a critical factor in energy homeostasis and maintaining body weight, with some research labeling it an anorectic peptide—meaning it helps suppress appetite.
The multifaceted roles of CART peptides extend across several critical biological functions:
* Appetite and Body Weight Regulation: As an anorectic peptide, CART is a satiety factor, signaling fullness and influencing food intake. Its regulation by leptin, a hormone involved in energy balance, further underscores its importance in controlling hunger and maintaining a stable body weight.作者：XJ Maddern·2024·被引用次数：13—The neuropeptide cocaine- and amphetamine-regulated transcript (CART) has been implicated in alcohol consumption and reward behaviours, ... The hypothalamus, a key brain region for appetite control, shows significant CART peptide immunoreactivity.CART (Cocaine- and Amphetamine-Regulated Transcript) ...
* Reward and Addiction: Given its name, it's unsurprising that CART peptides are deeply involved in the brain's reward circuitry. They are expressed in areas associated with reward-related behaviors and have been implicated in regulating responses to addictive drugs like cocaine and amphetamines.Cocaine- and amphetamine-regulated transcript, also known as CART,is a neuropeptide proteinthat in humans is encoded by the CARTPT gene. This suggests CART peptides may be important targets for understanding and potentially treating addiction.
* Learning and Memory: Emerging research indicates a role for CART peptides in learning and memory processes, particularly those influenced by drugs. This suggests a nuanced involvement in how the brain encodes and retrieves information, especially in the context of rewarding or aversive stimuli.
* Mood and Stress: CART peptides have also been linked to mood regulation and stress-related behaviorsCommentary: GPR160 De-Orphanization Reveals Critical .... Some studies suggest they may possess anxiolytic (anxiety-reducing) functions, potentially helping to manage aversive moods and uncontrolled drug-seeking behaviors, especially during withdrawal.
* Other Potential Roles: Beyond these primary functions, ongoing research explores CART's involvement in other areas, including potential antioxidant properties, where it might protect cellular components from oxidative damage.
The CART peptide is encoded by the CARTPT gene (Cocaine- and Amphetamine-Regulated Transcript precursor peptide).Cocaine and amphetamine regulated transcript (CART) ... This gene plays a fundamental role in producing the prepropeptide that is then processed into various active CART peptidesCocaine-and Amphetamine Regulated Transcript (CART .... The expression of the CARTPT gene is widespread, contributing to the peptide's diverse presence and function throughout the body, particularly in the central nervous system. Research into the CARTPT receptor is also an active area, aiming to understand how CART peptides exert their effects at a cellular level.
While "CART peptide" is often used as a general term, specific fragments of the peptide, such as CART(55-102), have been studied for distinct functions. While CART(55-102) may not be directly involved in acute pain perception, it appears to modulate spinal pain transmission during inflammatory conditions. The precise biological activity can vary depending on the specific peptide sequence and its concentration.
In summary, the CART peptide is a vital neuropeptide with profound effects on appetite, reward, learning, and mood. Its discovery and ongoing investigation, driven by its connection to addictive substances and its role in fundamental physiological processes, continue to shed light on the complex neurobiology of the brain.
Join the newsletter to receive news, updates, new products and freebies in your inbox.