Research Paper Volume 16, Issue 10 pp 8922—8943
Potential marker genes for chronic obstructive pulmonary disease revealed based on single-cell sequencing and Mendelian randomization analysis
Figure 5. Analysis of immune cell infiltration in COPD samples. (A) Relative percentages of immune cell subpopulations. (B) Correlation between immune cell subpopulations, where red represents positive correlation and blue represents negative correlation. (C) Differences in immune cell content between COPD and control samples. (D) Correlation between 4 key genes and immune cells. Where red represents a positive correlation and blue represents a negative correlation, the larger black solid circle represents a more statistically significant difference.