Anesthetic effects of isoflurane and the molecular mechanism underlying isoflurane‑inhibited aggressiveness of hepatic carcinoma

Abstract

Anesthesia is produced by drugs or other methods, and refers to the attenuation of pain via reversible suppression of neuronal transmission in the central and peripheral nervous systems, during surgery. Clinical investigations have indicated that the anesthetic action of isoflurane is efficient to alleviate pain during tumor resection clinical trials. In addition, it has been reported that isoflurane can induce caspase-3 activation and is associated with apoptosis of tumor cells. The present study investigated the anesthetic effects and molecular mechanisms underlying isoflurane-induced apoptosis in patients with hepatic carcinoma. Furthermore, the pain of patients with hepatic carcinoma was evaluated during the perioperative period according to the pain index. The apoptotic rate of hepatic carcinoma cells was analyzed in tumor tissues using TUNEL assay. The expression levels of apoptosis-associated proteins were detected in liver cancer cells following anesthesia in patients. Phosphoinositide 3-kinase/protein kinase B (PI3K/AKT) and nuclear factor (NF)-κB signaling pathways were also analyzed in liver cancer cells following treatment with isoflurane. The results demonstrated that isoflurane inhibited growth and decreased viability of liver cancer cells in vitro and in vivo. In addition, the apoptotic rate was increased in cells obtained from isoflurane-treated patients. The results also demonstrated that isoflurane upregulated the expression levels of proapoptotic genes and downregulated anti-apoptotic mRNA expression. In addition, a molecular mechanism analysis indicated that isoflurane inhibited PI3K and AKT expression in liver cancer cells. Isoflurane also induced caspase-3 activation in liver cancer cells. Furthermore, isoflurane treatment attenuated NF-κB activity and inhibited migration and invasion of liver cancer cells. In conclusion, these findings indicated that isoflurane treatment efficiently attenuated surgical pain and inhibited tumor aggressiveness via regulation of NF-κB activity and the PI3K/AKT signaling pathway, thus suggesting that isoflurane is an efficient anesthetic drug that induces pain remission and promotes apoptosis of liver cancer cells.

Sevoflurane Modulates Akt Isoforms In Triple Negative Breast Cancer Cell Line

“…To elucidate the underlying mechanism, we examined the effects of sevoflurane on AKT isoforms, which were reported to be involved in major cellular processes [17][18][19][20][21][22][23][24][25][26][27][28]. The overexpression of AKT isoforms in different types of malignancies is well documented [51].…”

<p>The Role of Inhaled Anesthetics in Tumorigenesis and Tumor Immunity</p>

“…Isoflurane is a volatile general anesthetic that can be used to induce and maintain general anesthesia to eliminate behavioral response in patients undergoing tumor resection. 39 A survival investigation indicated that the use of isoflurane or desflurane alone during glioblastoma surgery did not affect overall survival (OS) or progression-free survival (PFS) at 1 or 5 years. 5 Postoperatively, the plasma levels of IL-6 and IL-10 in 35 patients with colorectal cancer after surgery treated with isoflurane were significantly higher than baseline values before surgery.…”

“…Isoflurane inhibited cell proliferation and reduced cell viability in HCC. 39 Furthermore, migration and invasion abilities of liver cancer cells were inhibited by isoflurane by attenuating nuclear factor-kappaB (NF-κB) activity. 39 These results uncovered that isoflurane plays an inhibitory role in liver oncogenesis (Table 2, Figure 3).…”

“…39 Furthermore, migration and invasion abilities of liver cancer cells were inhibited by isoflurane by attenuating nuclear factor-kappaB (NF-κB) activity. 39 These results uncovered that isoflurane plays an inhibitory role in liver oncogenesis (Table 2, Figure 3). In summary, these phenomena suggest that treatment with isoflurane might be a promoting factor in the progression of most types of cancers.…”

“…Promotes ovarian cancer cells migration and angiogenesis [47] Suppress oncogenesis Downregulates NF-κB Inhibits liver cancer cells migration and invasion [39] Abbreviations: HIF, hypoxia-inducible factor; RCC, renal cell carcinoma; Akt, protein kinase B; mTOR, mammalian target of rapamycin; NSCLC, non-small cell lung cancer; MMP, matrix metalloproteinase; NF-κB, nuclear factor-kappaB. versus 5.8%), and increased postoperative metastasis rate (43.5% versus 13.4%) than propofol anesthesia group regardless of tumor node metastasis (TNM) stages during the 10 years' follow-up.…”