Figure 1

Figure 2

Figure 3

Correlation of the 25 identified genes (five common and 20 related) with biological processes, molecular functions, pathways, and diseases associated with COVID-19 complications
| Category | Name | ID | p-value | Genes involved* |
|---|---|---|---|---|
| Molecular function | cytokine binding | GO:0019955 | 1.341E-17 | 11 |
| cytokine receptor binding | GO:0005126 | 2.170E-17 | 13 | |
| cytokine activity | GO:0005125 | 3.580E-15 | 11 | |
| signalling receptor binding | GO:0005102 | 1.187E-11 | 16 | |
| receptor ligand activity | GO:0048018 | 1.952E-11 | 11 | |
| Biological process | inflammatory response | GO:0006954 | 4.830E-28 | 23 |
| cytokine-mediated signalling pathway | GO:0019221 | 1.992E-25 | 19 | |
| cellular response to cytokine stimulus | GO:0071345 | 1.277E-20 | 19 | |
| response to cytokine | GO:0034097 | 9.706E-20 | 19 | |
| leukocyte migration | GO:0050900 | 8.016E-19 | 15 | |
| Pathway | KEGG cytokine receptor interaction | M9809 | 1.039E-30 | 20 |
| reactome interleukin 10 signalling | M27605 | 6.459E-22 | 11 | |
| reactome signalling by interleukins | M874 | 4.294E-18 | 16 | |
| WP SARSCOV2 innate immunity evasion and cell-specific immune response | M40067 | 9.207E-18 | 10 | |
| WP overview of proinflammatory and profibrotic mediators | M42533 | 1.091E-16 | 11 | |
| Disease | susceptibility to HIV infection | 609423 | 6.577E-6 | 3 |
| malaria, susceptibility to | cv:C1836230 | 6.577E-6 | 3 | |
| white blood cell count quantitative trait locus 1 | 611162 | 5.893E-4 | 2 | |
| WHIM syndrome 2 | cv:C1970028 | 5.893E-4 | 2 | |
| Graft-versus-host disease, susceptibility to | 611862 | 2.333E-3 | 1 |
Effects of As, Cd, Pb, Hg, Ni, and Cr on common genes
| Toxic metals | Interactions | CXCL8 | IL10 | IL1B | IL6 | TNF |
|---|---|---|---|---|---|---|
| As | Expression of mRNA | N/A | ↓ | ↓↑ | ↑ | ↓ |
| Protein expression | ↑ | ↑ | ↓↑ | ↑ | ↓↑ | |
| Cd | Expression of mRNA | ↑ | ↓ | ↓↑ | ↓↑ | ↓↑ |
| Protein expression | ↑ | ↑ | ↑ | ↑ | ↑ | |
| Pb | Expression of mRNA | ↑ | N/A | ↑ | N/A | ↑ |
| Protein expression | ↑ | ↓↑ | ↑ | ↑ | ↑ | |
| Hg | Expression of mRNA | N/A | ↑ | ↑ | N/A | ↑ |
| Protein expression | ↑ | N/A | ↑ | ↑ | ↑ | |
| Ni | Expression of mRNA | ↑ | ↑ | ↑ | ↑ | ↑ |
| Protein expression | ↑ | N/A | ↑ | ↑ | ↑ | |
| Cr | Expression of mRNA | ↑ | N/A | N/A | N/A | ↑ |
| Protein expression | N/A | N/A | N/A | ↓ | ↑ |
Genes associated with COVID-19 and the investigated metals (CTD: https://ctdbase_org/)
| Toxic metals | Total number of genes | Genes associated with COVID-19 |
|---|---|---|
| Arsenic (As) | 4997 | ATP11A, BCL11A, CCL2, CCL3, CCR2, CRP, CXCL8, ICAM5, IFNAR2, IL10, IL10RB, IL1B, IL2, IL2RA, IL6, IL7, LZTFL1, MUC1, OAS1, TNF |
| Cadmium (Cd) | 5281 | AGT, CCL2, CCR2, CD209, CRP, CXCL8, F8, HCK, IL10, IL1B, IL2, IL6, IL7, MUC1, OAS1, SELE, TNF, UGCG |
| Lead (Pb) | 3278 | AGT, BSG, CCL2, CCL3, CD209, CRP, CXCL10, CXCL8, ICAM5, IL10, IL1B, IL6, TNF |
| Mercury (Hg) | 635 | CCL3, CCR2, CRP, CXCL8, IL10, IL1B, IL2, IL6, TNF, UGCG |
| Nickel (Ni) | 7665 | ACE2, AGT, BCL11A, BTK, CCL2, CCL3, CCR2, CD209, CRP, CXCL10, CXCL8, FUT2, HCK, IFNAR2, IL10, IL10RB, IL1B, IL2, IL2RA, IL6, IL7, OAS1, PLSCR1, SELE, TMPRSS2, TMPRSS4, TNF |
| Chromium (Cr) | 2353 | AGT, CXCL8, IL10, IL1B, IL6, TNF, UGCG |
| As+Cd+Pb+Hg+Ni+Cr | 5 | CXCL8, IL10, IL1B, IL6, TNF |