Synonym |
(Thr4,Gly7)-Oxytocin |
Species |
Human |
Protein Accession |
P01178 |
Purity |
Greater than 95% as determined by SDS-PAGE |
Endotoxin Level |
Less than 1 EU/µg |
Biological Activity |
Fully biologically active when compared to standard. |
Expression System |
E. coli |
Fusion Tag |
None |
Predicted Molecular Mass |
1003.1 Da |
Formulation |
Lyophilized from a 0.2 µm filtered solution of 20mM PB,150mM NaCl,pH 7.2 |
Reconstitution |
It is recommended to reconstitute the lyophilized (Thr4,Gly7)-Oxytocin in sterile 18MΩ-cm H2O
not less than 100µg/ml, which can then be further diluted to other aqueous solutions. |
Storage & Stability |
Lyophilized (Thr4,Gly7)-Oxytocin although stable at room temperature for 3 weeks, should be
stored desiccated below -18°C. Upon reconstitution (Thr4,Gly7)-Oxytocin should be stored at 4°C
between 2-7 days and for future use below -18°C. |
FAQ
What is (Thr4,Gly7)-Oxytocin, and how does it differ from regular oxytocin?
(Thr4,Gly7)-Oxytocin
is a modified analogue of the naturally occurring hormone oxytocin. In the peptide chain of oxytocin,
modifications have been made at the fourth and seventh positions, with threonine and glycine
respectively. These subtle yet significant changes in the molecular structure can result in differences
in how the peptide interacts with oxytocin receptors in the body. Oxytocin, primarily known for its
roles in labor and lactation, is also a significant player in social bonding, emotional regulation, and
various other physiological processes. The modifications present in (Thr4,Gly7)-Oxytocin can potentially
alter these interaction profiles, leading to variations in efficacy, duration of action, and receptor
affinity compared to regular oxytocin. Scientific research indicates that such analogues are designed to
enhance stability, bioavailability, or target specificity, which can make them suitable for specific
therapeutic applications where regular oxytocin might not be as effective. Additionally, these
modifications might also influence the side effect profile, offering a potentially safer or more
suitable alternative for certain populations. However, the exact nature of these potential differences
remains subject to ongoing research, and anyone considering the implications of such modifications
should keep abreast of the latest scientific findings and clinical trials to gain a comprehensive
understanding of how (Thr4,Gly7)-Oxytocin could be utilized in practice.
What potential
therapeutic applications does (Thr4,Gly7)-Oxytocin have?
While oxytocin itself has a range of
established therapeutic applications, including use in obstetrics to induce labor or control postpartum
bleeding, its analogues like (Thr4,Gly7)-Oxytocin may be explored for an array of other medical
purposes. The modifications in (Thr4,Gly7)-Oxytocin may offer enhanced therapeutic benefits by improving
the peptide's stability, receptor selectivity, and activity duration. This can be especially valuable
when considering oxytocin's growing interest in the treatment of psychological and psychiatric
conditions. Research suggests that oxytocin and its derivatives may play a role in modulating social
behaviors, making them potentially useful in managing conditions such as autism spectrum disorder,
social anxiety disorder, and depression. By acting on the brain’s oxytocin receptors,
(Thr4,Gly7)-Oxytocin could facilitate more positive social interactions, enhance trust, or reduce
anxiety in social situations. Furthermore, with its potential enhanced stability and efficacy,
(Thr4,Gly7)-Oxytocin might be an ideal candidate for chronic conditions where long-term use of
traditional oxytocin might be limited by degradation or clearance rates. Preclinical studies may also
explore its applications in cardiovascular and metabolic health, including possibilities such as
managing vasodilation or influencing lipid metabolism. Continued research and clinical trials will be
paramount to fully understanding the scope of (Thr4,Gly7)-Oxytocin's therapeutic potential and
establishing it as a viable treatment option across diverse medical fields.
How does the
modification in (Thr4,Gly7)-Oxytocin affect its interaction with oxytocin receptors?
The
modifications present in (Thr4,Gly7)-Oxytocin, particularly at the fourth and seventh amino acid
positions, can have significant implications for how the peptide interacts with oxytocin receptors in
the body. These receptors, predominantly located in the brain, uterus, and mammary glands, are
responsible for mediating the physiological effects of oxytocin. By altering specific sites on the
peptide chain, the affinity and selectivity toward these receptors can change. For example, replacing
certain amino acids may enhance the peptide's ability to bind more tightly or selectively to its
receptors, leading to a more potent response or prolonged action. This in turn can amplify or prolong
the hormone's effects on emotional regulation, social bonding, or uterine contraction, depending on the
target tissues involved. Importantly, these modifications can also affect the analog's degradation and
metabolism. A more stable peptide might have an extended half-life, allowing for less frequent dosing
and sustained receptor activation compared to regular oxytocin. Conversely, these modifications may also
influence how the analogue interacts with receptors outside the typical oxytocin receptor sites,
potentially leading to novel effects or a broader range of therapeutic applications. The overall effect
on receptor interaction will ultimately depend on the structural nuances conferred by the modifications,
and scientific studies including binding assays and receptor localization analyses are crucial to
dissect these interactions further.
In what ways could (Thr4,Gly7)-Oxytocin influence modern
treatments in mental health?
Mental health fields are increasingly examining the role of
neuropeptides like oxytocin in emotional and social regulation, which makes modified analogues such as
(Thr4,Gly7)-Oxytocin subject to investigation. Oxytocin’s influence on areas like trust, empathy, and
prosocial behavior underlines its potential utility in treating mental health conditions characterized
by deficits in these areas. (Thr4,Gly7)-Oxytocin, potentially having enhanced properties due to its
modifications, might offer promising avenues for therapeutic intervention. Conditions such as autism
spectrum disorder, schizophrenia, and certain types of depression or anxiety, which involve significant
social interaction and relational challenges, could benefit from the modulating effects of such a
peptide. Enhanced receptor affinity and stability might mean (Thr4,Gly7)-Oxytocin can exert more
substantial or lasting effects, which is pivotal for chronic mental health conditions requiring
long-term management. Additionally, the potential modification of side effects and reduced degradation
rates might reduce dosage frequency or side effect profiles, making treatment more tolerable for
sensitive individuals. While the exact mechanisms through which oxytocin and its analogues affect brain
function are complex and under continued study, preclinical and early clinical trials often explore
alterations in neurotransmitter release, stress response modulation, and changes in neural connectivity.
Further research in such therapeutic contexts will be essential to verify efficacy, optimize dosing
strategies, and refine understanding of how (Thr4,Gly7)-Oxytocin can influence mental health treatment
paradigms.
What are the considerations for using (Thr4,Gly7)-Oxytocin in clinical
settings?
As with any pharmaceutical agent, several considerations must be taken into account
before implementing (Thr4,Gly7)-Oxytocin in clinical settings. Primarily, the safety profile of the
modified peptide is crucial. While modifications may enhance efficacy or reduce side effects, they can
also introduce unforeseen adverse reactions or interactions with other drugs. Rigorous clinical trials
are needed to assess the safety, optimal dosing, administration routes, and potential contraindications
of (Thr4,Gly7)-Oxytocin in diverse patient populations. Understanding the pharmacokinetics and
pharmacodynamics is also vital to ensure that the modified peptide is effectively absorbed, distributed,
metabolized, and eliminated from the body. Furthermore, the impact of such modifications on pregnant or
breastfeeding women must be carefully evaluated due to the hormone's roles in labor and lactation. For
non-obstetric applications, especially emerging ones in mental health or chronic disease management,
tailoring treatment protocols that consider age, gender, comorbid conditions, and concurrent medications
can enhance treatment efficacy and minimize risk. Lastly, clinician education and awareness are pivotal
to integrate new therapies safely and effectively into patient care. This includes understanding the
scientific rationale behind analogue development, potential benefits over existing treatments, and
nuances in patient response. Coordinated post-marketing surveillance and patient monitoring can further
ensure the timely identification of any long-term risks or complications associated with the clinical
use of (Thr4,Gly7)-Oxytocin, thereby safeguarding patient health and enhancing clinical outcomes.