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This study investigated the mechanism by which fucoxanthin acts as a novel ferroptosis inducer to inhibit tongue cancer. The MTT assay was used to detect the inhibitory effects of fucoxanthin on SCC−25 human tongue squamous carcinoma cells. The levels of reactive oxygen species (ROS), mitochondrial membrane potential (MMP), glutathione (GSH), superoxide dismutase (SOD), malondialdehyde (MDA), and total iron were measured. Reverse transcription–quantitative polymerase chain reaction (RT−qPCR) and Western blotting were used to assess glutathione peroxidase 4 (GPX4), nuclear factor erythroid 2−related factor 2 (Nrf2), Keap1, solute carrier family 7 member 11 (SLC7A11), transferrin receptor protein 1 (TFR1), p53, and heme oxygenase 1 (HO−1) expression. Molecular docking was performed to validate interactions. Compared with the control group, the activity of fucoxanthin−treated SCC−25 cells significantly decreased in a dose− and time−dependent manner. The levels of MMP, GSH, and SOD significantly decreased in fucoxanthin−treated SCC−25 cells; the levels of ROS, MDA, and total iron significantly increased. mRNA and protein expression levels of Keap1, GPX4, Nrf2, and HO−1 in fucoxanthin−treated cells were significantly decreased, whereas levels of TFR1 and p53 were significantly increased, in a concentration−dependent manner. Molecular docking analysis revealed that binding free energies of fucoxanthin with p53, SLC7A11, GPX4, Nrf2, Keap1, HO−1, and TFR1 were below −5 kcal/mol, primarily based on active site hydrogen bonding. Our findings suggest that fucoxanthin can induce ferroptosis in SCC−25 cells, highlighting its potential as a treatment for tongue cancer. [ABSTRACT FROM AUTHOR]

This study investigated the mechanism by which fucoxanthin acts as a novel ferroptosis inducer to inhibit tongue cancer. The MTT assay was used to detect the inhibitory effects of fucoxanthin on SCC-25 human tongue squamous carcinoma cells. The levels of reactive oxygen species (ROS), mitochondrial membrane potential (MMP), glutathione (GSH), superoxide dismutase (SOD), malondialdehyde (MDA), and total iron were measured. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and Western blotting were used to assess glutathione peroxidase 4 (GPX4), nuclear factor erythroid 2-related factor 2 (Nrf2), Keap1, solute carrier family 7 member 11 (SLC7A11), transferrin receptor protein 1 (TFR1), p53, and heme oxygenase 1 (HO-1) expression. Molecular docking was performed to validate interactions. Compared with the control group, the activity of fucoxanthin-treated SCC-25 cells significantly decreased in a dose- and time-dependent manner. The levels of MMP, GSH, and SOD significantly decreased in fucoxanthin-treated SCC-25 cells; the levels of ROS, MDA, and total iron significantly increased. mRNA and protein expression levels of Keap1, GPX4, Nrf2, and HO-1 in fucoxanthin-treated cells were significantly decreased, whereas levels of TFR1 and p53 were significantly increased, in a concentration-dependent manner. Molecular docking analysis revealed that binding free energies of fucoxanthin with p53, SLC7A11, GPX4, Nrf2, Keap1, HO-1, and TFR1 were below -5 kcal/mol, primarily based on active site hydrogen bonding. Our findings suggest that fucoxanthin can induce ferroptosis in SCC-25 cells, highlighting its potential as a treatment for tongue cancer.

In the title compound, C17H22ClNO·0.5H2O, the water mol-ecule O atom resides on a twofold rotation axis. In the organic mol-ecule, the phenol group forms an intra-molecular O-H⋯N hydrogen bond. In the crystal, pairs of organic mol-ecules are hydrogen bonded through bridging solvent water mol-ecules, forming chains along the b-axis direction.

In the title compound, C(17)H(21)N, the dihedral angle between the benzene ring and the imine group (-N=) is 5.1 (4)°. In the adamantane group, the C-C-C bond angles range from 107.88 (19) to 111.33 (17)°. Only weak van der Waals inter-actions contribute to the contribute to the packing of the molecules in the crystal..

The Schiff base (E)-4-chloro-2-[(pyridin-2-yl-imino)-meth-yl]phenol was reacted with InCl(3)·4H(2)O, generating the title molecular salt, (C(5)H(7)N(2))(3)[InCl(6)]. The octa-hedral hexa-chlorido-indate(III) anion is located on an inversion centre, and one half of the anion and two crystallographically independent cations form the asymmetric unit. One of the cations is located on a twofold rotation axis and its intra-ring C and N atoms simulate this symmetry by exchanging their positions in statistical disorder. In the crystal, weak N-H⋯Cl hydrogen bonds and two types of π-π interactions with centroid-centroid separations of 4.047 (3) and 4.202 (3) Å are observed.

A novel Schiff base compound, C(20)H(27)NO(2), was obtained by a condensation of rimantadine and 2-hy-droxy-4-meth-oxy-benzaldehyde. An intra-molecular O-H⋯N hydrogen bond supports the phenol-imine tautomeric form. The adamantane and imino-methyl-4-meth-oxy-phenol units are arranged in a folded conformation [C-N-C-C torsion angle = 110.9 (3)°]. In the crystal, highly hydro-phobic adamantane moieties are inserted between the imino-methyl-4-meth-oxy-phenol units in a sandwich-like arrangement along the c axis.

Objective: To identify the predictors of massive blood transfusion in liver transplantation for patients with benign end-stage liver disease (ESLD)., Methods: The clinical data of 268 patients with ESLD mainly caused by hepatitis B who were to receive cadaver liver transplantation performed by 5 groups of anesthesiologists respectively were retrospectively reviewed. The patients were divided into 2 groups according to the transfusion amount: massive blood transfusion (MBT) group (n = 120) receiving the blood transfusion of more than 12 units of red blood cells (RBCs) during the operation, and non-massive blood transfusion (NBT) group (n = 148). Univariate analysis and stepwise logistic regression were used. The influence of anesthesiologists on administration of blood cells was analyzed., Results: During the liver transplantation, 98.13% of the patients received RBC transfusion of the mean dose of 13.32 units. Different group of anesthesiologists exerted no influence on the amount of RBC transfusion. Logistic regression showed that the preoperative MELD score, hemoglobin, platelet, interactional normalized ratio of prothrombin time, kaolin partial thromboplastin time, total protein, serum creatinine, total bilirubin, ascite, and severity of hepatitis were risk factors of MBT. Multivariable logistic regression showed that 2 independent predictors of MBT were identified: preoperative MELD score and hemoglobin. Accordingly, MBT during liver transplantation was predicted by 0.593 - 0.049 x preoperative hemoglobin + 0.137 x preoperative MELD score, with a cut off value of -0.67, a sensitivity of 84.1% and a specify of 71.2%. The area under receiver operating characteristic curves of prognostic score was 0.832., Conclusion: MBT during liver transplantation can be predicted by preoperative MELD score and hemoglobin value in patients with ESLD secondary to type B hepatitis.