Investigating the apoptopic and autophagic effects of Scutellaria Radix in non-small cell lung cancer
04/16/2020 // Evangelyn Rodriguez // Views

Researchers at Kyung Hee University in South Korea investigated the apoptotic and autophagy-inducing effect of Scutellaria radix (SR) in non-small cell lung cancer (NSCLC). Their findings were published in The American Journal of Chinese Medicine.

  • The root of Scutellaria baicalensis (Chinese skullcap) is an herb traditionally used in Asian countries to treat inflammatory diseases.
  • Studies show that SR exhibits anti-cancer activities against various types of tumors.
  • The researchers reported that SR treatment suppressed the viability of two NSCLC cell lines, namely, H358 and H2087 cells.
  • Western blot assays showed that SR increased the expression of key factors of apoptosis, such as Bcl-2-associated X protein (Bax), cleaved-caspase 3 and cleaved-Poly ADP ribose polymerase (PARP).
  • On the other hand, co-treatment with the caspase inhibitor Z-VAD negated the anti-proliferative effect of SR, suggesting that induction of apoptosis is part of SR's mechanism of action.
  • Further experiments also revealed that autophagy is also involved in SR's mode of action.
  • SR treatment caused an increase in the ratio of microtubule-associated protein 1A/1B-light chain 3 (LC3)-II/LC3-I in NSCLC cells, and co-treatment with chloroquinone further increased this ratio. This suggested that SR treatment induces autophagy in NSCLC cells.
  • In contrast, co-treatment with 3-Methyladenine (3-MA) led to the loss of autophagy and the suppression of apoptosis.

Based on these results, the researchers concluded that the root of S. baicalensis induces apoptosis in non-small cell lung cancer via AMPK-dependent autophagy, making it a potential anti-cancer agent against NSCLC.

Journal Reference:

Kim HI, Hong SH, Ku JM, Lim YS, Lee SJ, Song J, Kim TY, Cheon C, Ko S-G. SCUTELLARIA RADIX PROMOTES APOPTOSIS IN NON-SMALL CELL LUNG CANCER CELLS VIA INDUCTION OF AMPK-DEPENDENT AUTOPHAGY. The American Journal of Chinese Medicine. 2019;47(03):691–705. DOI: 10.1142/s0192415x19500368

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