Related Experiment Video
Updated: May 15, 2026

Monitoring eIF4F Assembly by Measuring eIF4E-eIF4G Interaction in Live Cells
Published on: May 1, 2020
[Expression and significance of mRNA and protein of eIF4E, p-eIF4E and MCl-1 in pathological scar]
Wen-Yi Wu1, Li-Ting Zhang, Zhi-Fang Zheng
1Department of Plastic Surgery, the Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, China
Objective:
To study the expression of eIF4E, p-eIF4E (Ser 209) and Mcl-1 gene in the pathological scars and to investigate its role and its probable mechanism in the pathogenesis of abnormal scar.
Methods:
Quantitative real-time PCR and Western Blot was performed to detect the expression and distribution of mRNA and protein of eIF4E and Mcl-1 in hypertrophic scar (10 cases), keloid (10 cases), normal scar (10 cases), and normal skin (10 cases). Western Blot was performed to detect the expression and distribution of protein of p-eIF4E in hypertrophic scar (10 cases), keloid (10 cases), normal scar (10 cases), and normal skin (10 cases).
Results:
The expression of eIF4E mRNA and protein were 1.38 +/- 0.45, 1.23 +/- 0.23 in the normal skin (10 cases); 5.400 +/- 0.450, 5.460 +/- 0.460 in normal scar (10 cases); 0.597 +/- 0.060, 0.590 +/- 0.040 in hypertrophic scar (10 cases) and 0.694 +/- 0.066, 0.697 +/- 0.022 in keloid (10 cases). The expression of p-eIF4E protein in the normal skin (10 cases), normal scar (10 cases), hypertrophic scar (10 cases), and keloid (10 cases) were 0.202 +/- 0.037, 0.216 +/- 0.019, 0.426 +/- 0.026, 0.433 +/- 0.027. The expression of Mcl-1 mRNA and protein were 1.510 +/- 0.660, 1.400 +/- 0.530 in the normal skin (10 cases); 6.65 +/- 0.85, 7.23 +/- 1.53 in normal scar (10 cases); 0.589 +/- 0.059, 0.660 +/- 0.063 in hypertrophic scar (10 cases) and 0.870 +/- 0.118, 0.914 +/- 0.064 in the keloid (10 cases). The positive rate of mRNA and protein of eIF4E and Mcl-1 was not statistically different between the hypertrophic scar and keloid (P > 0.05), while they were all remarkably significant between normal scar and abnormal scar (P < 0.05). The phosphorylation of eIF4E in pathological scar was higher than that in control group. In pathological scar, mRNA and protein of eIF4E and Mcl-1 showed a strong positive correlation.
Conclusions:
The result indicates that the expression of eIF4E, p-eIF4E and Mcl-1 is increased in pathological scar. eIF4E plays an important role in pathological scar. Its activity is regulated by its phosphorylation. Therefore, eIF4E, p-eIF4E and Mcl-1 overexpression may play an important role in the proliferation of fibroblasts and in the pathogenesis of pathological scar.
Related Concept Videos
Leaky Scanning
Regulation of Expression Occurs at Multiple Steps
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
RNA Splicing
Regulation of Expression at Multiple Steps
Nuclear Export of mRNA
mRNA Stability and Gene Expression
Cis-acting Elements involved in mRNA stability

