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MOTS-c 5mg/vial,10vials/kit

MOTS-c enhances insulin sensitivity throughout the body through muscles (24). Previous studies have revealed that MOTS-c can enhance the insulin sensitivity of skeletal muscle and improve the utilization of glucose (16, 24)
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MOTS-c Overview

MOTS-c is a short peptide encoded in the mitochondrial genome and a member of the larger group of mitochondrial-derived peptides (MDPs). MDPs have recently been found to be bioactive hormones that play important roles in mitochondrial communication and energy regulation. Originally thought to be related to the mitochondria only, new research has revealed that many MDPs are active in the cell nucleus and that some even make their way into the blood stream to have systemic effects. MOTS-c is a newly identified MDP that has, to date, been found to play important roles in metabolism, weight regulation, exercise capacity, longevity, and even processes leading to disease states like osteoporosis. MOTS-c has been found in the nucleus of cells as well as in the general circulation, making it a bonafide natural hormone. The peptide has been targeted for intensive research in the last five years due to its therapeutic potential.

MOTS-c Structure

MOTS-C Structure

 

Sequence: Met-Arg-Trp-Gln-Glu-Met-Gly-Tyr-Ile-Phe-Tyr-Pro-Arg-Lys-Leu-Arg
Molecular Formula: C101H152N28O22S2
Molecular Weight: 2174.64 g/mol
PubChem SID: 255386757
CAS Number: 1627580-64-6
Synonyms: Mitochondrial open reading frame of the 12S rRNA-c, MT-RNR1

MOTS-c Research

Muscle Metabolism

Research in mice indicates the MOTS-c can reverse age-dependent insulin resistance in muscles, thereby improving muscle uptake of glucose. It does this by improving skeletal muscle response to AMPK activation, which in turn increases the expression of glucose transporters[1]. It is important to note that this activation is independent of the insulin pathway and thus offers an alternative means of boosting glucose uptake by muscles when insulin is ineffective or in insufficient quantity. The net result is improved muscle function, enhanced muscle growth, and decreased functional insulin resistance.

Fat Metabolism

Research in mice has shown that low levels of estrogen lead to increased fat mass and dysfunction of normal adipose tissue. This scenario increases the risk of developing insulin resistance and, subsequently, the risk of developing diabetes. Supplementing mice with MOTS-c, however, increases brown fat function and reduces the accumulation of adipose tissue. It also appears that the peptide prevents adipose dysfunction and the adipose inflammation that typically precedes insulin resistance[2].

It appears that at least part of the influence that MOTS-c has on fat metabolism is mediated through activation of the AMPK pathway. This well-defined pathway is turned on when cellular energy levels are low and it drives the uptake of both glucose and fatty acids by cells for metabolism. It is also the pathway that is activated in ketogenic diets, like the Atkin’s diet, which promote fat metabolism while protecting lean body mass. MOTS-c targets the methionine-folate cycle, increases AICAR levels, and activates AMPK.

New research suggests that MOTS-c can actually leave the mitochondria and make its way to the nucleus where the peptide can affect nuclear gene expression. Following metabolic stress, MOTS-c has been shown to regulate nuclear genes involved in glucose restriction and antioxidant responses[3].

MOTS-C Structure

 

MOTS-c has effects in both the mitochondria and the nucleus.
Source: Cell Metabolism

Evidence from mice indicates that MOTS-c, particularly in the setting of obesity, is an important regulator of sphingolipid, monoacylglycerol, and dicarboxylate metabolism. By down-regulating these pathways and increasing beta-oxidation, MOTS-c appears to prevent fat accumulation[4]. Some of these effects are almost certainly mediated via MOTS-c action in the nucleus. Research on MOTS-c has led to a new hypothesis about fat deposition and insulin resistance that is gaining traction in the scientific community and may offer a new means of intervening in the pathophysiology of obesity and diabetes. It appears that dysregulation of fat metabolism in mitochondria may result in a lack of fat oxidation. This leads to higher levels of circulating fat and thus forces the body to boost insulin levels in an effort to clear lipids from the bloodstream. The consequence of this action is increased fat deposition and a homeostatic change in the body as it adapts to (and becomes resistant to) chronically higher levels of insulin[5].

 

MOTS-c supplementation in rats prevents mitochondrial dysfunction and prevents the accumulation of fat even in the setting of a high-fat diet.

 

MOTS-c supplementation in rats prevents mitochondrial dysfunction and prevents the accumulation of fat even in the setting of a high-fat diet.
Source: Cell Metabolism

Insulin Sensitivity

Research measuring MOTS-c levels in insulin sensitive and insulin resistant individuals has shown that the protein is associated with insulin sensitivity only in lean individuals. In other words, MOTS-c appears to be important in the pathogenesis of insulin insensitivity, but not in the maintenance of the condition[6]. Scientists speculate that the peptide maybe a useful means of monitoring pre-diabetic lean individuals and that changes in MOTS-c levels could act as an early warning sign of potential insulin insensitivity. Supplementation with MOTS-c in this setting could help to stave off insulin resistance and thus the development of diabetes. Research in mice thus far has been promising, but more work is needed to understand the full impact of MOTS-c on insulin regulation.

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