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Additionally, metformin was also found to be associated with a higher survival outcome in patients with HCC.
Anti-cancer chemotherapy is an effective therapeutic approach. Milk extracellular vesicles (EVs) loaded with chemotherapeutics have a potential anticancer effect by acting as a drug delivery system. Thus, our study aimed to explore the effect of engineered milk extracellular vesicles.
To treat epidermal growth factor receptor (EGFR) expressing solid tumors, we established oxaliplatin-loaded milk EV conjugated with GE11 peptide (
Milk EV
), which has a high affinity to EGFR and assessed their anti-cancer effect in vitro and in vivo.
Drug-loaded
Milk EV
showed significantly higher incorporation into EGFR expressing cancer cells compared with milk EV without GE11 conjugation (Milk EV
), leading to apoptosis of cancer cells.
Milk EV
also inhibited cell viability compared to milk EV
or oxaliplatin alone. In colorectal cancer xenograft murine model,
Milk EV
showed the maximum therapeutic effect on tumor progression. These findings indicate that
Milk EV
suppresses EGFR expressing cancer through GE11 peptide-mediated EGFR targeting and subsequently anti-cancer drug delivery.
Anti-cancer drug-loaded engineered milk EVs might be a novel therapeutic approach for treating patients with EGFR expressing solid tumors.
Anti-cancer drug-loaded engineered milk EVs might be a novel therapeutic approach for treating patients with EGFR expressing solid tumors.
The poor prognosis and chemoresistance of patients with triple-negative breast cancer (TNBC) urge the development of new therapeutic strategies. Snail mucus has shown its ability against inflammation, a process closely related to tumorigenesis, suggesting a potential anti-cancer activity.
The effect and mechanisms of snail mucus on cell viability were determined by IncuCyte Live-cell analysis and molecular biological methods. The anti-cancer fractions of snail mucus were isolated and identified by medium pressure liquid chromatography (MPLC) and nuclear magnetic resonance (NMR) spectrometry analysis.
Snail mucus significantly decreased the viability of TNBC cells with relatively lower cytotoxicity to normal breast epithelial cells and enhanced their response to chemotherapy through activation of Fas signaling by suppressing nucleolin. Two peptide fractions have been identified as the anti-cancer ingredients of the snail mucus.
Snail mucus can induce programmed cell death via the extrinsic apoptotic pathway and has therapeutic potential by achieving a chemo-sensitizing effect in TNBCs.
Snail mucus can induce programmed cell death via the extrinsic apoptotic pathway and has therapeutic potential by achieving a chemo-sensitizing effect in TNBCs.
Chemotherapy is used for recurrent and metastatic colorectal cancer, but the response rate of 5-fluorouracil (5-FU), the standard treatment for colorectal cancer, is low. We hypothesized that thymidine phosphorylase (TYMP) expression, a rate-limiting activating enzyme of 5-FU, is regulated by methylation of the gene promoter region, and demethylation of TYMP would increase sensitivity to 5-FU.
HCT116 colon cancer cells were treated with 5-aza-2'-deoxycytidine, a demethylating agent, and changes in TYMP transcription and sensitivity to 5-FU were evaluated.
TYMP expression increased over 54-fold in HCT116 transfected with TYMP. The cytotoxicity of 5-FU increased up to 5.5-fold. In comparison, in HCT116 treated with 5-aza-2'-deoxycytidine, TYMP expression increased 5.8-fold. However, the cytotoxicity of 5-FU remained unchanged.
Demethylating agent alone did not promote the cytotoxicity of 5-FU against colorectal cancer. To further increase the sensitivity to 5-FU, combination with adjuvant therapy focusing on metabolic pathways other than the TYMP pathway appear necessary.
Demethylating agent alone did not promote the cytotoxicity of 5-FU against colorectal cancer. selleck screening library To further increase the sensitivity to 5-FU, combination with adjuvant therapy focusing on metabolic pathways other than the TYMP pathway appear necessary.
The need to concentrate the anti-tumoral activity of
Y only to the targeted tumor, while minimizing its off-target effects, led to the development of an innovative device (BAT-90) composed of a hydrogel matrix and
Y microspheres.
This in vivo randomized study was planned to assess the efficacy, safety, and biodistribution of BAT-90 in 46 rabbits implanted with a VX2 tumor. The effects of BAT-90 were compared to those of
Y microspheres and the hydrogel matrix.
BAT-90 localized effectively the
Y radiation in the injection site, minimizing dispersion of the microspheres in the target and distant organs of the treated animals.
BAT-90 can be administered as an adjuvant treatment to clear surgical margins from any potential minimal residual disease, or as an alternative to other loco-regional treatments for non-resectable tumors.
BAT-90 can be administered as an adjuvant treatment to clear surgical margins from any potential minimal residual disease, or as an alternative to other loco-regional treatments for non-resectable tumors.
Sarcomatoid renal cell carcinoma (sRCC) is an aggressive subtype of RCC. In the current study, we investigated whether the POLR2A and RUNX2 genes are involved in RCC-related signaling pathway and associated with miR-378.
Thirteen formalin-fixed and paraffin-embedded RCC samples were collected. Three software programs were used to predict the potential gene regulation in RCC by miR-378 and immunohistochemistry analysis was applied to confirm the expression of targeted proteins in FFPE samples. MicroRNA-378 transfection, analysis of mRNA and protein expression via Western Blotting and cell apoptosis analysis via flow cytometry for POLR2A and RUNX2 were further studied in four renal cell carcinoma cell lines.
Both the mRNA and protein expression levels of POLR2A and RUNX2 in sRCC cell lines and were significantly higher than those in other subtypes of RCC, and similar results were obtained in clinical samples (p<0.01). Second, overexpression of miR-378 significantly suppressed the expression of POLR2A and RUNX2 in sRCC cells (p<0.01) and enhanced apoptosis (p<0.05).
miR-378 significantly inhibits the expression of POLR2A and RUNX2 in sRCC and further promotes apoptosis of sRCC cells. We speculated that the apoptosis mechanism in sRCC occurs via regulation of the ERK2 and PI3K/AKT pathways, which might distinguish it from other subtypes of RCC.
miR-378 significantly inhibits the expression of POLR2A and RUNX2 in sRCC and further promotes apoptosis of sRCC cells. We speculated that the apoptosis mechanism in sRCC occurs via regulation of the ERK2 and PI3K/AKT pathways, which might distinguish it from other subtypes of RCC.
Current treatment strategies for advanced melanoma require serial assessment of disease status in affected patients. In this study, we sought to examine the relationship between radiographic tumour burden and blood borne biomarkers including plasma cfDNA, serum LDH, plasma VEGF, PD-L1 and IFN-γ in advanced melanoma patients receiving immunotherapy. We hypothesized that a combination of these explanatory variables in a suitable regression analysis model may predict changes in tumour burden during patient treatment.
We extracted and quantified circulating cfDNA, LDH, VEGF, PD-L1, and IFN-γ from thirty patients with stage IV melanoma at baseline and at six months. All participating patients were evaluated with paired blood sample collection and CT scan assessments during treatment.
Changes in radiographic tumour burden correlated with changes in levels of cfDNA (p≤0.001), LDH (p≤0.001), VEGF (p≤0.001), and PD-L1 (p<0.05) during treatment. Multiple regression analysis consisting of the follow-up to baseline assessment ratios of cfDNA, LDH, VEGF and PD-L1 explained changes in tumour burden (F (4, 23)=32.05, p<0.001); with an R
of 0.8479 (Y=β0+β1*B+β2*C+β3*D+β4*E).
A quantitative measure of cfDNA, LDH, VEGF and PD-L1 may complement current methods of assessing tumour burden in advanced melanoma patients.
A quantitative measure of cfDNA, LDH, VEGF and PD-L1 may complement current methods of assessing tumour burden in advanced melanoma patients.
We previously observed higher prevalence of high-grade pancreatic intraepithelial neoplasia (PanIN) in LSL-Kras
; Pdx1
(KC-Crmp4
) mice than LSL-Kras
; Pdx1
; Crmp4
(KC-Crmp4
) mice. This study investigated the relationship between collapsin response mediator protein 4 (CRMP4) and immune cell infiltration in pancreatic cancer.
PanIN was induced by intraperitoneal injection of caerulein into KC-Crmp4
and KC-Crmp4
mice, and immune cells in PanIN lesions were compared. Subcutaneous tumors were created by injecting Pan02 cells, and tumor diameter was compared between Crmp4
and Crmp4
mice every 7 days. Peritumoral immune cells were examined immunohisto chemically.
High-grade PanIN in KC mice showed statistically significantly high expression of CD163 (p=0.031) and CD11b (p=0.027). Following subcutaneous injection of Pan02 cells, tumor diameter was greater in Crmp4
mice than Crmp4
mice. Crmp4
mice exhibited higher CD163 and CD11b expression than Crmp4
mice in tumors (p<0.001).
CRMP4 might promote pancreatic cancer by up-regulating M2 macrophages and myeloid-derived suppressor cells.
CRMP4 might promote pancreatic cancer by up-regulating M2 macrophages and myeloid-derived suppressor cells.
Bortezomib, used for the treatment of multiple myeloma, has been reported to induce potent neurotoxicity. The present study investigated whether eight popular polyphenols inhibit bortezomib-induced neurotoxicity without affecting its anticancer activity.
Viable cell number was determined with the MTT method. Tumor-specificity was determined by the relative cytotoxicity in human oral squamous cell carcinoma vs. normal oral cells. Neurotoxicity was determined by the relative cytotoxicity in differentiated rat neuronal PC12 cells vs. normal cells. Apoptotic cells were quantified by cell cycle analysis.
Bortezomib induced cell shrinkage, disruption of neurites, and accumulation of PC-12 cells in subG1. Only chlorogenic acid and caffeic acid protected PC-12 cells from bortezomib-induced neurotoxicity. Ferulic acid that has one of the two hydroxyl groups replaced by a methoxy group showed a significantly reduced neuroprotective effect. Caffeic acid and the chlorogenic acid also neutralized the anticancer potential of bortezomib.
Caffeic acid and the chlorogenic acid may reduce the biological activity of bortezomib by forming a conjugate.
Caffeic acid and the chlorogenic acid may reduce the biological activity of bortezomib by forming a conjugate.
About 40% of patients with diffuse large cell lymphoma (DLBCL) still have a poor prognosis. Additionally, DLBCL patients treated with doxorubicin are at risk of cardiac failure. Growing evidence suggests an antitumor and cardioprotective activity exerted by estrogen via its binding to estrogen receptor (ER) β. The aim of this study was to evaluate the anticancer activity of the phytoestrogen silibinin, an ERβ selective agonist, on DLBCL growth, and its potential cardioprotective effect.
DLBCL cell lines SUDHL-8, SUDHL-6, and RIVA were used. The anti-tumor activity of silibinin was also evaluated in vivo in NOD/SCID/IL2Rg-/- (NSG) xenografted mice. AC16 human ventricular cardiomyocytes were used to investigate the cardioprotective effects of silibinin.
In vitro silibinin induced apoptosis and autophagy, and blocked tumor cell proliferation, also protecting AC16 cardiomyocytes from doxorubicin-induced toxicity. In vivo silibinin induced cell death and autophagy, and reduced tumor volume.
Silibinin represents a promising therapeutic tool.
Read More: https://www.selleckchem.com/
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