Why does persistent signaling via the NF-κB pathway, activated by inflammatory cytokines, increase the risk of tumor development in tissues experiencing chronic inflammation?

💡 Explanation

NF-κB activation by cytokines leads to increased expression of anti-apoptotic proteins and pro-proliferation factors; because NF-κB regulates genes involved in cell survival and division, its persistent activation promotes uncontrolled cell growth. Therefore, the risk of tumor development rises, rather than cell cycle arrest, DNA repair, or antioxidant responses mitigating the effect.

• Which risk increases as prior Streptococcus pyogenes infection causes rheumatic fever?
• If a patient consistently excretes highly concentrated urine with elevated calcium oxalate levels despite normal fluid intake, which consequence relating to renal function is most likely?
• Why does vision blur at near distances in presbyopia, despite sufficient light?
• If a marathon runner only consumes sports drinks high in electrolytes without adequate water intake, which consequence follows regarding their plasma osmolality?
• Why does repeated administration of synthetic GnRH agonists, intended to stimulate ovulation, paradoxically inhibit reproductive function?
• If a patient with asthma experiences a severe allergic reaction after accidental exposure to peanuts, which consequence is most likely regarding airway constriction?