Influence of hydrogen-occluding-silica on migration and apoptosis in human esophageal cells in vitro.
Qiang Li, Yoshiharu Tanaka, Nobuhiko Miwa · Medical gas research · 2017
Research-use notice
Independent study record
Each H2HUBB study page organizes source-linked research details for educational use. Interpretation should remain proportional to the study design, population, controls, and limitations.
H2HUBB TAKEAWAY
In These findings should provide insights into the mechanism of inhibition of H₂-silica on human cancer cells in vitro, apoptosis-inducing effect on KYSE-70 cells was observed in 10, 300, 600, and 1,200 ppm H₂-silica, and only 1,200 ppm H₂-silica caused a 2.4-fold increase in apoptosis in HEEpiCs compared with the control group as the index of Bax/Bcl-2. The authors concluded that 21 In addition, from the results of the ratios of activated caspase-3 and Bax/Bcl-2 experiment, it was confirmed that H₂ -silica had the effect of inducing and enhancing cancer cellular apoptosis. These findings from a laboratory model add evidence supporting molecular hydrogen's biological and therapeutic potential in the model studied.
What the Findings Mean
H2HUBB reviewed how inhaled hydrogen gas affected the outcomes measured in These findings should provide insights into the mechanism of inhibition of H₂-silica on human cancer cells in vitro. Apoptosis-inducing effect on KYSE-70 cells was observed in 10, 300, 600, and 1,200 ppm H₂-silica, and only 1,200 ppm H₂-silica caused a 2.4-fold increase in apoptosis in HEEpiCs compared with the control group as the index of Bax/Bcl-2.
What the Researchers Studied
The researchers studied These findings should provide insights into the mechanism of inhibition of H₂-silica on human cancer cells in vitro. The study used a in vitro cell-culture laboratory experiment.
What Effects Did Molecular Hydrogen Have?
Reported treatment duration: 3 days. Apoptosis-inducing effect on KYSE-70 cells was observed in 10, 300, 600, and 1,200 ppm H₂-silica, and only 1,200 ppm H₂-silica caused a 2.4-fold increase in apoptosis in HEEpiCs compared with the control group as the index of Bax/Bcl-2. The authors concluded that 21 In addition, from the results of the ratios of activated caspase-3 and Bax/Bcl-2 experiment, it was confirmed that H₂ -silica had the effect of inducing and enhancing cancer cellular apoptosis. Molecular hydrogen has antioxidant and antiapoptotic effects and a preventive effect on oxidative stress-induced cell death.
Why These Findings Matter
These findings from a laboratory model add evidence supporting molecular hydrogen's biological and therapeutic potential in the model studied.
How Strong Is This Evidence?
This is laboratory evidence from a in vitro cell-culture laboratory experiment. It is most informative for the biological mechanisms, cellular responses, or biochemical outcomes directly measured.
Technical Study Details
H2HUBB classifies this publication as laboratory study with laboratory or cellular evidence. The research population or model was These findings should provide insights into the mechanism of inhibition of H₂-silica on human cancer cells in vitro. The study used a in vitro cell-culture laboratory experiment. The hydrogen delivery method was inhaled hydrogen gas. The reported treatment duration was 3 days.
Limitations and Safety
Reported limitations: In the present study, the researchers investigated solidified hydrogen-occluding-silica (H₂-silica) that can release molecular hydrogen into cell culture medium because the use of hydrogen gas has strict handling limitations in hospital and medical facilities and laboratories, owing to its physicochemical characteristics.
Original Study and H2HUBB Research Context
H2HUBB presents this source-grounded research record as one contribution to the broader molecular-hydrogen evidence base.