Synonym |
CCK-8 |
Species |
Human |
Protein Accession |
P06304 |
Purity |
≥ 95% |
Endotoxin Level |
< 1.0 EU per µg |
Biological Activity |
N/A |
Expression System |
Chemical Synthesis |
Fusion Tag |
None |
Predicted Molecular Mass |
1053.2 Da |
Formulation |
Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA |
Reconstitution |
Centrifuge vial before opening. Reconstitute in H₂O to a concentration of 0.1-1.0 mg/ml. Do not
vortex. |
Storage & Stability |
Store at -20°C. Repeated freeze-thaw cycles should be avoided. |
FAQ
What is Boc-Cholecystokinin Octapeptide (3-8) and how does it function in the body?
Boc-Cholecystokinin Octapeptide (3-8) is a synthetic peptide derived from cholecystokinin, a hormone
naturally produced in the gastrointestinal tract. It plays a multifaceted role in the body, primarily
involved in regulating pancreatic secretion and promoting satiety, which is the feeling of fullness
after eating. This peptide is of particular interest to researchers and clinicians due to its potential
implications in both digestive health and the management of disorders related to appetite and satiety.
One of the primary functions of cholecystokinin (CCK) is to facilitate digestion by stimulating the
gallbladder to release bile and prompting the pancreas to release digestive enzymes, thereby aiding in
the breakdown of fats and proteins. Specifically, the octapeptide portion of CCK, known as CCK-8, is
recognized for its activity in binding to specific receptors orchestrating these digestive
processes.
Beyond its digestive roles, cholecystokinin has a significant impact on the central
nervous system, where it acts as a neuropeptide. CCK-8 interacts with CCK receptors located in the
brain, particularly in regions associated with controlling appetite and promoting feelings of satiety.
This interaction plays a crucial role in meal termination and is being explored as a potential
therapeutic target for the management of obesity and eating disorders. The peptide's ability to
communicate between the gut and the brain, often referred to as the gut-brain axis, underscores its
significance in both digestive health and nutritional status.
Furthermore, Boc protection in the
synthetic version of cholecystokinin octapeptide (3-8) denotes the tert-butyloxycarbonyl group, which is
used to protect the reactive amino group during peptide synthesis. This protection is important to
maintain the integrity of the peptide's structure, ensuring its bioactivity is preserved. Researchers
often utilize Boc-Cholecystokinin Octapeptide (3-8) in various experimental and clinical settings to
further understand its potential therapeutic applications and mechanistic pathways within the
body.
What potential therapeutic applications are being researched concerning Boc-Cholecystokinin
Octapeptide (3-8)?
Boc-Cholecystokinin Octapeptide (3-8) is currently the subject of numerous
research initiatives aimed at exploring its therapeutic potential in various medical disciplines. One of
the most prominent areas of investigation is its role in managing obesity and eating disorders. The
peptide's influence on appetite regulation and satiety offers promising avenues for developing new
treatments that can help control food intake and support weight management. By modulating CCK receptor
activity, researchers are exploring how this peptide might help individuals achieve better appetite
control, thereby contributing to weight loss and improved metabolic health.
In addition to its
applications in weight management, Boc-Cholecystokinin Octapeptide (3-8) is being studied for its
potential effects in gastrointestinal disorders. Given its natural role in digestion, there's
significant interest in how it might be used to treat conditions like pancreatic insufficiency or
gallbladder dysfunction. By promoting the release of digestive enzymes and bile, this peptide could
offer therapeutic benefits to individuals with compromised digestive systems, enhancing nutrient
absorption and overall digestive health.
The peptide is also being explored in the context of
neurological disorders. Beyond its influence on appetite, CCK is involved in various brain functions,
including anxiety regulation and pain perception. Preliminary research suggests that Boc-Cholecystokinin
Octapeptide (3-8) could potentially serve as a basis for novel treatments targeting anxiety and related
conditions, given its activity in central nervous system pathways. Furthermore, ongoing studies are
evaluating its analgesic properties, investigating how it may alter pain perception and could eventually
be integrated into pain management protocols.
Another promising research avenue is the peptide's
potential in cancer treatment. CCK receptors have been identified in certain cancer cell lines, and
studies are underway to determine whether Boc-Cholecystokinin Octapeptide (3-8) or its derivatives might
inhibit cancer progression or enhance the effectiveness of existing treatments. By targeting these
receptors, researchers hope to develop more targeted and effective therapies that minimize harm to
healthy tissues while combating malignant cells.
How does Boc-Cholecystokinin Octapeptide (3-8)
differ from natural cholecystokinin?
Boc-Cholecystokinin Octapeptide (3-8) represents a synthetic
analog of a naturally occurring peptide hormone called cholecystokinin (CCK). The main difference lies
in its structure and form, specifically tailored for stability and research purposes, as opposed to the
naturally circulating hormone within the body. Natural cholecystokinin is found in various lengths, but
the CCK-8 fragment is most frequently studied due to its strong affinity for CCK receptors and its
significant physiological effects.
The 'Boc' in Boc-Cholecystokinin Octapeptide stands for
tert-butyloxycarbonyl, a protective group used in peptide synthesis. This protective group is not
present in the natural form and is primarily employed to preserve the peptide's integrity during
synthesis and storage. By safeguarding the reactive amine group, the Boc group helps prevent degradation
and unwanted side reactions, facilitating research and clinical application.
Natural
cholecystokinin is secreted by specialized cells in the small intestine in response to food intake,
especially fatty and protein-rich meals. Upon release, CCK interacts with receptors primarily located in
the gastrointestinal tract and the central nervous system, stimulating bile secretion, pancreatic enzyme
release, and contributing to the sensation of satiety. By contrast, Boc-Cholecystokinin Octapeptide
(3-8) is synthesized in laboratories and utilized in controlled experimental and research settings.
The synthetic derivative's formulation allows for targeted research on specific receptor
interactions and physiological responses, which might be more challenging with the naturally occurring
full-length hormone due to its diverse roles and widespread distribution in the body. As such,
Boc-Cholecystokinin Octapeptide (3-8) provides a useful tool for delineating pathways specific to the
octapeptide function and exploring its therapeutic potential in a more controlled
environment.
Moreover, because it is synthesized, Boc-Cholecystokinin Octapeptide can be produced
in high purity and controlled quantity, which is crucial for experimental consistency and reliability.
Researchers can therefore perform detailed studies to investigate how alterations in this peptide affect
biological systems, potentially paving the way for the development of new drugs or therapeutic
approaches. However, it must be noted that while both natural CCK and its synthetic derivative interact
with the same receptor types, the concentration, stability, and specific receptor modulations can differ
significantly between the two, leading to different outcomes under varied biological
conditions.
What safety considerations are associated with the use of Boc-Cholecystokinin
Octapeptide (3-8)?
When exploring the use of Boc-Cholecystokinin Octapeptide (3-8) in research or
potential therapeutic applications, several safety considerations must be taken into account. As with
any biologically active compound, it is crucial to understand its pharmacokinetics, potential side
effects, and interactions within the biological system.
Firstly, the administration route of
Boc-Cholecystokinin Octapeptide (3-8) can greatly influence its safety profile. Depending on whether it
is administered intravenously, subcutaneously, or orally (though peptides are typically not orally
bioavailable), different pharmacokinetic properties, such as absorption rate, half-life, and
bioavailability, are observed. Researchers need to tailor the administration method to the specific
experimental setup to ensure accurate results without compromising the safety of the subjects involved,
whether in vitro or in vivo studies.
Secondly, dosing is a critical factor in ensuring safety.
Determining the optimal dosage range, where therapeutic effects are maximized while minimizing adverse
reactions, requires extensive preclinical studies. Given that Boc-Cholecystokinin Octapeptide (3-8) can
influence diverse biological processes, including appetite, digestion, and even neurological functions,
understanding the dose-dependent effects is essential for predicting both therapeutic outcomes and
potential toxicity.
Another crucial aspect is the potential for allergic reactions or immune
responses. As with other peptide-based interventions, there is a risk of immunogenicity, where the
immune system might recognize the peptide as foreign and mount an immune response, potentially leading
to adverse effects. Therefore, ongoing monitoring and evaluation of any immune reactions during
experimental trials is necessary to mitigate this risk.
Additionally, unintended off-target
effects are a concern, particularly because cholecystokinin has receptors in multiple body systems, and
improper modulation could lead to undesirable outcomes. For example, while the primary research focus
may be on appetite regulation, unforeseen interactions with other CCK receptors could potentially impact
gastrointestinal motility or central nervous system functions, necessitating comprehensive risk
assessments and monitoring protocols.
Moreover, ethical considerations, particularly in human
studies, demand rigorous Institutional Review Board (IRB) approvals and adherence to ethical guidelines
to ensure volunteer safety and informed consent. This includes providing participants with comprehensive
information about the potential risks and benefits and ensuring that participation is entirely
voluntary.
In conclusion, while Boc-Cholecystokinin Octapeptide (3-8) holds promise for various
therapeutic applications, comprehensive studies on its safety profile are mandatory. Researchers must
prioritize rigorous investigation into its pharmacodynamics, pharmacokinetics, and toxicology while
adhering to stringent ethical standards to ensure safe and effective applications. These considerations
are integral to advancing from preliminary research to potential clinical trials and eventual
therapeutic use.
How does Boc-Cholecystokinin Octapeptide (3-8) influence appetite regulation,
and what are its implications for weight management?
Boc-Cholecystokinin Octapeptide (3-8) plays a
significant role in the regulation of appetite, primarily by emulating the physiological actions of its
natural analogue, cholecystokinin (CCK), in the body. Within the context of appetite regulation, CCK is
known for its ability to induce satiety, the feeling of fullness, thus signaling the cessation of
eating. This satiety effect is one of the peptide's most promising applications in the realm of weight
management and obesity treatment.
The mechanisms through which Boc-Cholecystokinin Octapeptide
(3-8) influences appetite involve complex interactions with CCK receptors located both in the
gastrointestinal tract and the central nervous system. Upon activation by CCK-8, these receptors
initiate signaling pathways that communicate with the brain's appetite-control centers, particularly in
the hypothalamus, to reduce feelings of hunger. This reduction in hunger is partly due to increased
vagal afferent activity, as the vagus nerve transmits signals from the gut to the brain in response to
increased CCK levels.
The implications for weight management are substantial. By enhancing the
body's natural satiety signals, Boc-Cholecystokinin Octapeptide (3-8) may help individuals reduce
overall food intake, an essential factor in managing body weight and combating obesity. Many studies are
focusing on this peptide's potential to control portion sizes and minimize overeating without
necessitating the drastic lifestyle changes that often accompany traditional weight loss
interventions.
Furthermore, understanding how Boc-Cholecystokinin Octapeptide (3-8) affects
appetite can also aid in addressing metabolic disorders often associated with obesity, such as Type 2
Diabetes. By regulating food intake, this peptide could contribute to improved glycemic control and
better overall metabolic health.
However, while the potential benefits are significant, it is
crucial to consider the complexity of appetite regulation and the numerous factors that influence eating
behavior. These factors include emotional, psychological, and environmental triggers, which means that
Boc-Cholecystokinin Octapeptide (3-8), like any other appetite-regulating treatment, would likely need
to be part of a comprehensive weight-management program that includes dietary, behavioral, and lifestyle
interventions.
In summary, Boc-Cholecystokinin Octapeptide (3-8)'s modulation of appetite
regulation underscores its potential as a therapeutic aid in weight management. By leveraging the body's
intrinsic satiety pathways, this peptide offers a promising avenue for research and development of
weight control therapies, though its application must be carefully studied and integrated with holistic
health strategies to maximize its benefits and ensure sustainable outcomes.