The impact of propranolol on apoptosis in cutaneous squamous cell carcinomas

Çelik, Ebru; Kaplan, Halil Mahir; Şingirik, Ergin

doi:10.4149/bll_2020_131

Cited by 1 publication

(1 citation statement)

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“…In a mouse model of ovarian cancer, it was shown that propranolol treatment reversed the β-adrenergic activation-induced tumor angiogenesis by blocking cAMP-PKA signaling pathway (40). Propranolol exerts its antitumorigenic effects not only by blocking angiogenesis but also through triggering apoptosis and/or suppressing anti-apoptotic mediators and inhibiting proliferation, invasion/metastasis of tumor cells (41,42).…”

Section: Discussionmentioning

confidence: 99%

Anti-proliferative effects of beta-blocker propranolol on human lung cancer and noncancer cells

Terzi̇¹,

Urhan-Kucuk²

2023

BLL

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OBJECTIVE: Propranolol (PRO) has been recently discovered to possess anti-tumorigenic effects in cancer patients. So, we aimed to enlighten the in vitro effects of propranolol in A549 lung cancer cells and BEAS2B nontumoral lung cells. METHODS: The gene expression levels of apoptotic proteins; caspases 3, 8, and 9 (CASP3, 8, 9), apoptosis inducing factor (AIF), and DNA damage inducible transcript 3 (DDIT3) and cell cycle regulatory proteins; WEE1 G2 checkpoint kinase (WEE1) and cyclin dependent kinase inhibitor 1A (CDKN1A) were analyzed with quantitative reverse-transcription PCR to assess the effect of PRO on A549 tumor and BEAS2B nontumoral cells. The protein levels of caspase 3 and AIF1 were detected with Western blot. RESULTS: PRO exerted its anti-tumorigenic effects against A549 cells by arresting cell cycle via CDNK1A and by inducing apoptosis via caspase-dependent (CASP3) and -independent pathways (AIF, DDIT3). As to nontumoral BEAS2B cells, PRO decreased the cell viability at a lesser extent compared to tumoral cells. In contrast to tumor cells, PRO reduced the protein levels of CASP3 and AIF1. Notably, at 48th hour of PRO treatment, we observed a sustained expression of elevated DDIT3 mRNA levels at 24h in BEAS2B cells unlike in A549 cells. CONCLUSION: We suggest that D DIT3 and CDKN1A play a critical role during cell fate decision after PRO treatment by protecting nontumoral cells against apoptosis and by triggering apoptosis in tumor cells. The selective action mechanism of PRO with less cytotoxicity in nontumoral lung cells puts it forward as a promising adjuvant agent in lung cancer therapy (Tab. 1, Fig. 26, Ref. 50).

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Section: Discussionmentioning

confidence: 99%