4 research outputs found
Table_1_Identification of immune cell function in breast cancer by integrating multiple single-cell data.xlsx
Breast cancer has now become the most commonly diagnosed cancer worldwide. It is a highly complex and heterogeneous disease that comprises distinct histological features and treatment response. With the development of molecular biology and immunology, immunotherapy has become a new field of breast cancer treatment. Identifying cell-type-specific genes critical to the immune microenvironment contributes to breast cancer treatment. Single-cell RNA sequencing (scRNA-seq) technology could serve as a powerful tool to analyze cellular genetic information at single-cell resolution and to uncover the gene expression status of each cell, thus allowing comprehensive assessment of intercellular heterogeneity. Because of the influence of sample size and sequencing depth, the specificity of genes in different cell types for breast cancer cannot be fully revealed. Therefore, the present study integrated two public breast cancer scRNA-seq datasets aiming to investigate the functions of different type of immune cells in tumor microenvironment. We identified total five significant differential expressed genes of B cells, T cells and macrophage and explored their functions and immune mechanisms in breast cancer. Finally, we performed functional annotation analyses using the top fifteen differentially expressed genes in each immune cell type to discover the immune-related pathways and gene ontology (GO) terms.</p
Robust Superhydrophobic Carbon Nanotube Film with Lotus Leaf Mimetic Multiscale Hierarchical Structures
Superhydrophobic
carbon nanotube (CNT) films have demonstrated
many fascinating performances in versatile applications, especially
for those involving solid/liquid interfacial processes, because of
their ability to affect the material/energy transfer at interfaces.
Thus, developing superhydrophobic CNTs has attracted extensive research
interests in the past decades, and it could be achieved either by
surface coating of low-free energy materials or by constructing micro/nanohierarchical
structures via various complicated processes. So far, developing a
simple approach to fabricate stable superhydrophobic CNTs remains
a challenge because the capillary force induced coalescence frequently
happens when interacting with liquid. Herein, drawing inspirations
from the lotus leaf, we proposed a simple one-step chemical vapor
deposition approach with programmable controlled gas flow to directly
fabricate a CNT film with rather stable superhydrophobicity, which
can effectively prevent even small water droplets from permeating
into the film. The robust superhydrophobicity was attributable to
typical lotus-leaf-like micro/nanoscale hierarchical surface structures
of the CNT film, where many microscale clusters composed of entangled
nanotubes randomly protrude out of the under-layer aligned nanotubes.
Consequently, dual-scale air pockets were trapped within each microscale
CNT cluster and between, which could largely reduce the liquid/solid
interface, leading to a Cassie state. Moreover, the superhydrophobicity
of the CNT film showed excellent durability after long time exposure
to air and even to corrosive liquids with a wide range of pH values.
We envision that the approach developed is advantageous for versatile
physicochemical interfacial processes, such as drag reduction, electrochemical
catalysis, anti-icing, and biosensors
Data_Sheet_1_Strategies targeting hemagglutinin cocktail as a potential universal influenza vaccine.ZIP
Vaccination is the most effective means of protecting people from influenza virus infection. The effectiveness of existing vaccines is very limited due to antigenic drift of the influenza virus. Therefore, there is a requirement to develop a universal vaccine that provides broad and long-lasting protection against influenza. CD8+ T-cell response played a vital role in controlling influenza virus infection, reducing viral load, and less clinical syndrome. In this study, we optimized the HA sequences of human seasonal influenza viruses (H1N1, H3N2, Victoria, and Yamagata) by designing multivalent vaccine antigen sets using a mosaic vaccine design strategy and genetic algorithms, and designed an HA mosaic cocktail containing the most potential CTL epitopes of seasonal influenza viruses. We then tested the recombinant mosaic antigen, which has a significant number of potential T-cell epitopes. Results from genetic evolutionary analyses and 3D structural simulations demonstrated its potential to be an effective immunogen. In addition, we have modified an existing neutralizing antibody-based seasonal influenza virus vaccine to include a component that activates cross-protective T cells, which would provide an attractive strategy for improving human protection against seasonal influenza virus drift and mutation and provide an idea for the development of a rationally designed influenza vaccine targeting T lymphocyte immunity.</p
General Strategy to Fabricate Highly Filled Microcomposite Hydrogels with High Mechanical Strength and Stiffness
Conventional
synthetic hydrogels are intrinsically soft and brittle, which severely
limits the scope of their applications. A variety of approaches have
been proposed to improve the mechanical strength of hydrogels. However,
a facile and ubiquitous strategy to prepare hydrogels with high mechanical
strength and stiffness is still a challenge. Here, we report a general
strategy to prepare highly filled microcomposite hydrogels with high
mechanical performance using an ultrasonic assisted strategy. The
microparticles were dispersed in the polymer network evenly, resulting
in homogeneous and closely packed structures. The as-prepared hydrogels
with extraordinary mechanical performance can endure compressive stress
up to 20 MPa (at 75% strain) and exhibit high stiffness (elastic modulus
is around 18 MPa). By using our comprehensive strategy, different
hydrogels can enhance their mechanical strength and stiffness by doping
various microparticles, leading to a much wider variety of applications