The Claim
Smoking increases CXCL12 production by choroidal pericytes, leading to recruitment of CD8+ T cells expressing CXCR4 into choroidal neovascularization lesions, and pharmacological blockade of the CXCL12-CXCR4 interaction reduces CD8+ T cell infiltration and the severity of choroidal neovascularization in mice.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Smoking causes choroidal pericytes to produce more CXCL12, which attracts CD8+ T cells with CXCR4 receptors into abnormal blood vessel growth in the eye, and blocking this signal reduces T cell presence and disease severity in mice.
See the scientific wording
Smoking increases CXCL12 production by choroidal pericytes, which recruits CD8+ T cells expressing CXCR4 into the choroidal neovascularization lesion, and blocking this interaction with a CXCR4 antagonist reduces T cell infiltration and CNV severity in mice.
Smoking causes cells in the eye called pericytes to release a chemical signal that attracts a specific type of immune cell into damaged blood vessel areas. These immune cells stick to the pericytes and trigger a chain reaction that makes the pericytes contract and produce stiff structural material, which breaks down the blood vessel walls and causes abnormal new blood vessels to grow.
What the research says
1 studySmoking makes eye cells release a signal that pulls in harmful immune cells, worsening eye damage — and blocking that signal helps reduce the damage. The study found this exact process happens in mice and humans.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.