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Paper-scoped peptide mentionSequence reported

Myoki

PMC12935919::PEP000001

Source publication

The therapeutic potential of Myoki, a novel peptide in muscle atrophy: mechanisms and applications.

Frontiers in Pharmacology · 2026

Sequence status
reported
Standardization
Sequence ready
Source location
unknown
Activity records
26

Sequence evidence

Reported molecular identity

EAEYEHL

EAEYEHL

Resolved peptide links

Experimental observations

Records linked to this mention

ToxicityCytotoxicNegative / threshold
Record detail

Section 3.1 / Figure 1A: 'Myoki does not exhibit cytotoxicity at concentrations below 500 μM' and 'negligible reduction in cell viability at concentrations up to 500 μM'.

Measure
cell_viability
Value
no cytotoxicity up to 500 μM
Target
Mus musculus
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Section 3.1 / Figure 1C: 'On Day 6, the 100 μM Myoki-treated group exhibited a statistically significant increase in myotube length by 200% ± 33.88% compared to the control.'

Measure
fold_change
Value
200% ± 33.88%
Target
Mus musculus
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Figure 1C caption: 'Quantification of Day 6 myotube morphology, including relative myotube length and relative myotube thickness... *p < 0.05, **p < 0.01, ***p < 0.001 vs. DM group.'

Measure
fold_change
Value
significant increase (p<0.05 to p<0.001) at 50 and 100 μM
Target
Mus musculus
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Section 3.2 / Figure 2C: 'treatment with 100 μM Myoki significantly increased MyoD and MYH3 expressions by 190% ± 46.28% and 191% ± 10.66%, respectively, compared to the control.'

Measure
fold_change
Value
190% ± 46.28%
Target
Mus musculus
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Section 3.2 / Figure 2D: 'treatment with 100 μM Myoki significantly increased MyoD and MYH3 expressions by 190% ± 46.28% and 191% ± 10.66%, respectively, compared to the control.'

Measure
fold_change
Value
191% ± 10.66%
Target
Mus musculus
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Section 3.2 / Figure 2D: 'the fluorescence-based fusion index increased from 9.80% ± 0.85% in the control group to ... 13.66% ± 1.62% in the Myoki-treated groups'.

Measure
other
Value
13.66% ± 1.62% (percent)
Target
Mus musculus
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Section 3.2 / Figure 3A: 'On Day 6, Western blot analysis of the 100 μM Myoki treated group showed that the expression levels of alpha-actinin and MYH3 significantly increased by 818% and 307%, respectively.'

Measure
fold_change
Value
818%
Target
Mus musculus
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Section 3.2 / Figure 3A: 'On Day 6, Western blot analysis of the 100 μM Myoki treated group showed that the expression levels of alpha-actinin and MYH3 significantly increased by 818% and 307%, respectively.'

Measure
fold_change
Value
307%
Target
Mus musculus
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Section 3.2 / Figure 3B: 'Fluorescence staining of MYH3 on Day 6 also confirmed a significant increase of 153% compared to the control.'

Measure
fold_change
Value
153%
Target
Mus musculus
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Section 3.2 / Figure 3B: 'the Day 6 fusion index increased from 22.54% ± 3.42% in the control group to ... 35.16% ± 3.97% in the Myoki-treated groups'.

Measure
other
Value
35.16% ± 3.97% (percent)
Target
Mus musculus
Assay
Not reported by source
Source publication
OtherOtherNegative / threshold
Record detail

Section 3.3 / Figure 4D: 'Myoki significantly enhanced myostatin binding by more than 150% compared to the control, which was observed at concentrations ≥62.5 μM.'

Measure
other
Value
more than 150% (percent)
Target
myostatin/GDF-8
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Section 3.4 / Figure 5C: 'In the Myoki-treated group, collagen deposition in Gas decreased from 291% ± 19.72% to 194% ± 22.84% (normalized to SAMR1 = 100%).'

Measure
other
Value
194% ± 22.84% (percent)
Target
Mus musculus
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Section 3.4 / Figure 5C: 'In Quad, collagen deposition decreased from 185% ± 10.61% to 151% ± 28.82%, although this difference did not reach the level of statistical significance.'

Measure
other
Value
151% ± 28.82% (percent)
Target
Mus musculus
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Table 2: 'Lean muscle mass (g) ... Treatment (N = 38) 930.8 ... Difference between placebo and treatment (95% CI) 705.8 (433.40 to 978.16) p<0.01'.

Measure
other
Value
930.8 g
Target
Homo sapiens
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Table 2: 'Muscle mass (kg/m²) ... Treatment (N = 38) 0.15 ... Difference between placebo and treatment (95% CI) 0.13 (0.07 to 0.19) p<0.01'.

Measure
other
Value
0.15 kg/m²
Target
Homo sapiens
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Table 2: 'Time to complete 6-meter walk test (TTC-6mWT) (sec) ... Treatment (N = 38) -1.12 ... Difference between placebo and treatment (95% CI) -0.34 (-0.68 to 0.00) p<0.01'.

Measure
other
Value
-1.12 sec
Target
Homo sapiens
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Table 2: 'Hand grip strength test (Left hand) (kg) ... Treatment (N = 38) 1.07 ... Difference between placebo and treatment (95% CI) 0.27 (-0.15 to 0.69) p=0.02'.

Measure
other
Value
1.07 kg
Target
Homo sapiens
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Table 2: 'Hand grip strength test (Right Hand)(kg) ... Treatment (N = 38) 1.27 ... Difference between placebo and treatment (95% CI) 0.43 (-0.04 to 0.89) p=0.04'.

Measure
other
Value
1.27 kg
Target
Homo sapiens
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Table 2: 'IGF-1 (ng/mL) ... Treatment (N = 38) 31.44 ... Difference between placebo and treatment (95% CI) 17.93 (1.00 to 34.87) p=0.038'.

Measure
other
Value
31.44 ng/mL
Target
Homo sapiens
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Table 2: 'Myoglobin (ng/mL) ... Treatment (N = 38) -6.45 ... Difference between placebo and treatment (95% CI) -14.6 (-20.06 to -9.14) p<0.01'.

Measure
other
Value
-6.45 ng/mL
Target
Homo sapiens
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Table 2: 'Creatine kinase (CK-MB) (ng/mL) ... Treatment (N = 38) -0.54 ... Difference between placebo and treatment (95% CI) -3.95 (-6.18 to -1.72) p<0.01'.

Measure
other
Value
-0.54 ng/mL
Target
Homo sapiens
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherPositive observation
Record detail

Table 2: 'Aspartate aminotransferase ... Treatment (N = 38) -2.83 ... Difference between placebo and treatment (95% CI) -5.39 (-10.09 to -0.70) p=0.025'.

Measure
other
Value
-2.83 IU/L
Target
Homo sapiens
Assay
Not reported by source
Source publication
ImmunomodulatoryAnti-inflammatoryNegative / threshold
Record detail

Table 2: 'TNF-alpha (pg/mL) ... Treatment (N = 38) 3.97 ... Difference between placebo and treatment (95% CI) -0.33 (-8.07 to 7.42) p=0.933'.

Measure
other
Value
3.97 pg/mL
Target
Homo sapiens
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherNegative / threshold
Record detail

Table 2: 'Sex hormones (Estrogen) (pg/mL) ... Treatment (N = 38) -2.37 ... Difference between placebo and treatment (95% CI) -0.39 (-8.45 to 7.67) p=0.923'.

Measure
other
Value
-2.37 pg/mL
Target
Homo sapiens
Assay
Not reported by source
Source publication
Metabolic/CardiovascularOtherNegative / threshold
Record detail

Table 2: 'Sex hormones (testosterone) (pg/mL) ... Treatment (N = 38) 46.54 ... Difference between placebo and treatment (95% CI) 76.44 (-18.68 to 171.56) p=0.114'.

Measure
other
Value
46.54 pg/mL
Target
Homo sapiens
Assay
Not reported by source
Source publication
ImmunomodulatoryAnti-inflammatoryNegative / threshold
Record detail

Table 2: 'IL-6 (pg/mL) ... Treatment (N = 38) 0.04 ... Difference between placebo and treatment (95% CI) -1.27 (-4.97 to 2.43) p=0.496'.

Measure
other
Value
0.04 pg/mL
Target
Homo sapiens
Assay
Not reported by source
Source publication

Local peptide labels such as P1, PEP1, or peptide 1 are grouped only within this paper and are not assumed to represent the same molecule across publications.