44 research outputs found
Table_1_ANXA2P2: A Potential Immunological and Prognostic Signature in Ovarian Serous Cystadenocarcinoma via Pan-Carcinoma Synthesis.xlsx
BackgroundAlthough the effect of pseudogene ANXA2P2 on some tumors has been reported in a few literatures, the therapeutic potential and prognostic value of ANXA2P2 in ovarian serous cystadenocarcinoma (OV) have not been elucidated.MethodsThe correlation for ANXA2P2 expression patterns to prognostic characteristics, tumor immune microenvironment, immune cell infiltration level, tumor mutation burden (TMB), tumor microsatellite instability (MSI), drug sensitivity, and pathway function enrichment were investigated in pan-carcinoma via TCGA and GTEx databases. Subsequently, the role of ANXA2P2 expression levels in the pathway enrichments and prognosis prediction in OV were further explored using weighted correlation network analysis (WGCNA) analysis, gene mutation analysis, and risk-independent prognostic analysis.ResultsANXA2P2 was frequently overexpressed in a variety of tumors compared with normal tissues. The correlation analysis for prognostic characteristics, tumor immune microenvironment, immune cell infiltration level, TMB, MSI, drug sensitivity, and pathway function enrichment revealed that ANXA2P2 expression patterns might deal a significant impact on the pathogenesis, development, and prognosis of various tumors. Then, GSVA, GSEA, WGCNA, gene mutation, and independent prognostic analysis for OV have indicated that high expression in ANXA2P2 could be mostly enriched in TNF-α signaling-via-NF-κB, epithelial-mesenchymal transition, apical junction, IL-6-JAK STAT3 signaling, etc., which were also proved to act as crucial factors on tumorigenesis, development, invasion, and metastasis. The mutation of TP53 (94%), TTN (24%), and CSMD3 (9%) in the biological process of tumor had been confirmed by relevant studies. Finally, the independent prognostic analysis demonstrated that ANXA2P2 expression in OV contributes greatly to the dependability of 3- and 5-year survival prediction.ConclusionIn summary, our findings might provide a helpful foundation for prospective explorative researches, afford new strategies for the clinical treatment, deal prognosis prediction, and give new hope for OV patients.</p
Table_2_ANXA2P2: A Potential Immunological and Prognostic Signature in Ovarian Serous Cystadenocarcinoma via Pan-Carcinoma Synthesis.xlsx
BackgroundAlthough the effect of pseudogene ANXA2P2 on some tumors has been reported in a few literatures, the therapeutic potential and prognostic value of ANXA2P2 in ovarian serous cystadenocarcinoma (OV) have not been elucidated.MethodsThe correlation for ANXA2P2 expression patterns to prognostic characteristics, tumor immune microenvironment, immune cell infiltration level, tumor mutation burden (TMB), tumor microsatellite instability (MSI), drug sensitivity, and pathway function enrichment were investigated in pan-carcinoma via TCGA and GTEx databases. Subsequently, the role of ANXA2P2 expression levels in the pathway enrichments and prognosis prediction in OV were further explored using weighted correlation network analysis (WGCNA) analysis, gene mutation analysis, and risk-independent prognostic analysis.ResultsANXA2P2 was frequently overexpressed in a variety of tumors compared with normal tissues. The correlation analysis for prognostic characteristics, tumor immune microenvironment, immune cell infiltration level, TMB, MSI, drug sensitivity, and pathway function enrichment revealed that ANXA2P2 expression patterns might deal a significant impact on the pathogenesis, development, and prognosis of various tumors. Then, GSVA, GSEA, WGCNA, gene mutation, and independent prognostic analysis for OV have indicated that high expression in ANXA2P2 could be mostly enriched in TNF-α signaling-via-NF-κB, epithelial-mesenchymal transition, apical junction, IL-6-JAK STAT3 signaling, etc., which were also proved to act as crucial factors on tumorigenesis, development, invasion, and metastasis. The mutation of TP53 (94%), TTN (24%), and CSMD3 (9%) in the biological process of tumor had been confirmed by relevant studies. Finally, the independent prognostic analysis demonstrated that ANXA2P2 expression in OV contributes greatly to the dependability of 3- and 5-year survival prediction.ConclusionIn summary, our findings might provide a helpful foundation for prospective explorative researches, afford new strategies for the clinical treatment, deal prognosis prediction, and give new hope for OV patients.</p
A Colorimetric and Fluorescent Dual-Signal Sensor for Detecting Lipase Activity Based on Inner Filter Effect
We developed a colorimetric and fluorescence dual-signal sensor for detecting lipase activity based on methyl thioglycolate (MT) functionalized gold nanoparticles (MT-AuNPs) and CdS quantum dots (CdS QDs). It is the first time that was developed a dual-signal sensing strategy for lipase activity based on the inner-filter effect (IFE) between MT-AuNPs and CdS QDs. This probe system (MT AuNPs + CdS QDs) is sensitive and has selective response to the concentration of the lipase, and MT-AuNPs and CdS QDs played as transducer and fluorescer, respectively. The addition of lipase triggered the accumulation and change of color in CdS QDs and MT-AuNPs solution, it also makes the fluorescence intesity of CdS QDs significantly recover. The limit of detection (LOD) was as low as 0.039 μg mL-1 for colorimetric detection as well as 0.012 μg mL-1 for the fluorescence method. This method has been successfully used in the detection of commercial lipases. We believe it would open up a new path for the sensitive and high throughput lipase assay using nanobiosensor.</div
Clinically Approved Ferric Maltol: A Potent Nanozyme with Added Effect for High-Efficient Catalytic Disinfection
Nanozyme has been proven to be an attractive and promising
candidate
to alleviate the current pressing medical problems. However, the unknown
clinical safety and limited function beyond the catalysis of the most
reported nanozymes cannot promise an ideal therapeutic outcome in
further clinical application. Herein, we find that ferric maltol (FM),
a clinically approved iron supplement synthesized through a facile
scalable method, exhibits excellent peroxidase-like activity than
natural horseradish peroxidase-like (HRP) and commonly reported Fe-based
nanozymes, and also shows high antibacterial performance for methicillin-resistant Staphylococcus aureus (MRSA) elimination (100%) and
wound disinfection. In addition, with added effects inherited from
contained maltol, FM can accelerate skin barrier recovery. Therefore,
the exploration of FM as a safe and desired nanozyme provides a timely
alternative to current antibiotic therapy against drug-resistant bacteria
Data_Sheet_2_Protective Effect of Recombinant Proteins of Cronobacter Sakazakii During Pregnancy on the Offspring.xlsx
Cronobacter sakazakii is a food-borne pathogen carried in milk powder that can cause severe bacteremia, enterocolitis, and meningitis in newborns, which can lead to death of newborns. Preventing infection by this pathogen is significant to the health of newborns. Since infants and young children are the main target group of C. sakazakii, it is considered that maternal immunity can enhance the protection of newborns. Previous studies showed that two proteins of C. sakazakii (GroEL and OmpX) exhibited high expression levels and elicited strong immune reactions, suggesting their potential as vaccine candidates. In this study, GroEL and OmpX were recombinantly expressed in Escherichia coli and purified as immunogens to immunize pregnant rats. Three days after birth, the progeny were challenged with C. sakazakii to determine the protective effect of maternal immunity on the offspring. The results showed that immunization during pregnancy decreased bacterial load in the brain and blood, reduced brain and intestine damage, and significantly increased specific antibody titers in the offspring. Immunization with the recombinant proteins significantly increased cytokine levels in the serum of the progeny. The group whose mothers were immunized with OmpX produced more IL-4, while the group whose mothers were immunized with GroEL produced more IFN-γ, indicating that the immunogens enhanced the Th2 and Th1 responses, respectively. However, although the immune response was induced by both proteins, only the offspring of the pregnant rats immunized with OmpX or OmpX/GroEL mixture showed delayed death, possibly because immunization with OmpX led to a stronger humoral immune response in the offspring, suggesting that OmpX was a better vaccine candidate than GroEL. This study first reported that exposure to C. sakazakii proteins during pregnancy could improve the offspring's ability to resist infection caused by this pathogen.</p
Data_Sheet_1_Protective Effect of Recombinant Proteins of Cronobacter Sakazakii During Pregnancy on the Offspring.docx
Cronobacter sakazakii is a food-borne pathogen carried in milk powder that can cause severe bacteremia, enterocolitis, and meningitis in newborns, which can lead to death of newborns. Preventing infection by this pathogen is significant to the health of newborns. Since infants and young children are the main target group of C. sakazakii, it is considered that maternal immunity can enhance the protection of newborns. Previous studies showed that two proteins of C. sakazakii (GroEL and OmpX) exhibited high expression levels and elicited strong immune reactions, suggesting their potential as vaccine candidates. In this study, GroEL and OmpX were recombinantly expressed in Escherichia coli and purified as immunogens to immunize pregnant rats. Three days after birth, the progeny were challenged with C. sakazakii to determine the protective effect of maternal immunity on the offspring. The results showed that immunization during pregnancy decreased bacterial load in the brain and blood, reduced brain and intestine damage, and significantly increased specific antibody titers in the offspring. Immunization with the recombinant proteins significantly increased cytokine levels in the serum of the progeny. The group whose mothers were immunized with OmpX produced more IL-4, while the group whose mothers were immunized with GroEL produced more IFN-γ, indicating that the immunogens enhanced the Th2 and Th1 responses, respectively. However, although the immune response was induced by both proteins, only the offspring of the pregnant rats immunized with OmpX or OmpX/GroEL mixture showed delayed death, possibly because immunization with OmpX led to a stronger humoral immune response in the offspring, suggesting that OmpX was a better vaccine candidate than GroEL. This study first reported that exposure to C. sakazakii proteins during pregnancy could improve the offspring's ability to resist infection caused by this pathogen.</p
Antiviral Activity of Graphene Oxide–Silver Nanocomposites by Preventing Viral Entry and Activation of the Antiviral Innate Immune Response
Developing nanomaterials-based
antimicrobial agents has shown a
widespread promise. In this study, silver nanoparticle-modified graphene
oxide (GO-AgNPs) nanocomposites were self-assembled via interfacial
electrostatic force. By using the porcine reproductive and respiratory
syndrome virus (PRRSV) as a pattern, the antiviral effect of the as-prepared
GO-AgNPs nanocomposites on the replication of virus was investigated.
The results indicated that exposure with GO-AgNPs nanocomposites could
obviously suppress PRRSV infection. It was found that GO-AgNPs nanocomposites
exhibited a better inhibitory effect compared with AgNPs and GO. By
selecting the porcine epidemic diarrhea virus (PEDV) as a contrast
virus, GO-AgNPs nanocomposites were proven to have a broad antiviral
activity. Mechanism studies showed that GO-AgNPs nanocomposites might
prevent PRRSV from entering the host cells, with 59.2% inhibition
efficiency. Meanwhile, GO-AgNPs nanocomposite treatment enhances the
production of interferon-α (IFN-α) and IFN-stimulating
genes (ISGs), which can directly inhibit the proliferation of virus.
Taken together, this study reports a new type of antiviral agent and
provides a promising pharmaceutical agent for treating infection by
the highly pathogenic PRRSV. Moreover, it may provide novel ideas
for the research and development of antiviral formulations based on
nanocomposites and extend their applications in biological systems
Dual-Mechanism Tuned Engineered Polyphenols with Cascade Photocatalytic Self-Fenton Reaction for Sustainable Biocidal Coatings
Traditional disposable personal protective equipment
(PPE) only
blocks pathogenic bacteria by mechanical filtration, with the risk
of recontamination and transmission remaining. Herein, inspired by
phenolic-enabled nanotechnology (PEN), we proposed engineered polyphenol
coatings by plant-derived aromatic aldehydes and metal involvement,
denoted as FQM, to obtain the desired photocatalysis-self-Fenton antibacterial
performance. Experiments and theoretical analysis proved the dual
mechanism of Fe-induced enhancement: (1) tuning of molecular structure
realized improved optical properties; (2) Fe(III)/Fe(II) triggered
photocatalytic cascade self-Fenton reaction. Mechanism study reveals
FQM killing bacteria by direct-contact ROS attack and gene regulation.
Further, the FQM was developed as the ideal antibacterial coating
on different fabrics (cloth cotton, polyester, and N95 mask), killing
more than 93% of bacteria after 5 cycles of use. Such photocatalysis-self-Fenton
coatings based on engineered polyphenols endowed with desirable safety,
sustainability, and efficient antibacterial features are promising
solutions to meet the challenges of the currently available PPE
A Multifunctional Janus Electrospun Nanofiber Dressing with Biofluid Draining, Monitoring, and Antibacterial Properties for Wound Healing
Wound healing greatly affects patients’
health and produces
medical burden. Therefore, we developed a multifunctional electrospun
nanofiber dressing, which can inhibit methicillin-resistant Staphylococcus aureus (MRSA), drain excessive biofluid to
promote wound healing, and simultaneously monitor wound pH level.
The polyoxometalate (α-K6P2W18O62·14H2O, P2W18) and oxacillin (OXA) are encapsulated in hydrophobic polylactide
(PLA) nanofiber to synergistically inhibit MRSA. The phenol red (PSP)
is encapsulated in hydrophilic polyacrylonitrile (PAN) nanofiber to
sensitively indicate wound pH in situ. The PSP/PAN
nanofiber is directly electrospun on the patterning OXA/P2W18/PLA nanofiber layer to form a Janus dressing. By taking
advantage of the wettability difference between the two layers, the
excess biofluid can be drained away from the wound. In addition, the
Janus dressing exhibits good biocompatibility and accelerates wound
healing via its antimicrobial activity and skin repairing function.
This multifunctional Janus electrospun nanofiber dressing would be
beneficial for wound management and treatment
Aryne-Mediated [2,3]-Sigmatropic Rearrangement of Tertiary Allylic Amines
A new
strategy has been established for the [2,3]-sigmatropic rearrangement
of quaternary allylic ammonium ylides via in situ activation of tertiary
allylic amines with arynes under mild conditions. Using 2-(trimethylsilyl)aryl
triflates as aryne precursors, a range of tertiary allylic amines
bearing electron-withdrawing groups underwent [2,3]-sigmatropic rearrangement
to furnish structurally diverse homoallylic amines in moderate to
good yields. The reaction enabled construction of quaternary stereocenters
with excellent enantiopurity and functionalized cyclopropanes with
extremely high diastereoselectivity
