Respiratory diseases are a diverse group of illnesses involving the respiratory system from the nose to the lungs. Common types include colds and flu (caused by viruses), bronchitis (inflammation of the bronchial tubes), asthma (chronic inflammatory lung disease), chronic obstructive pulmonary disease (COPD, which includes chronic bronchitis and emphysema), pneumonia (infection of the lungs), tuberculosis (a contagious disease caused by the bacterium Mycobacterium tuberculosis), and lung cancer (a malignant tumor of the lungs). These diseases can be caused by viruses, bacteria, allergens, pollutants, smoking, and other environmental factors.
Currently, drug development for respiratory diseases is focused on the following areas:

Measured by its binding ability in a functional ELISA. Immobilized PD-1 at 2 μg/ml can bind Anti-PD-1 recombinant antibody, the EC50 of human PD-1 protein is 6.087-7.854 ng/ml.

Measured by its binding ability in a functional ELISA. Immobilized PD-L1 at 2 μg/ml can bind Anti- PD-L1 mouse monoclonal antibody (CSB-MA878942A1m, antigen from E.coli), the EC50 of human PD-L1 protein is 1.252-1.653 ng/mL

Human EGF protein captured on COOH chip can bind Human EGFR protein, his and Myc tag (CSB-MP007479HU) with an affinity constant of 11.9nM as detected by LSPR Assay.

SARS-CoV-2 Spike protein RBD his/sumostar tag (CSB-YP3324GMY1) captured on COOH chip can bind Human ACE2 protein Fc tag (CSB-MP866317HU) with an affinity constant of 100 nM as detected by LSPR Assay.

Measured in cell activity assay using U937 cells, the EC50 for this effect is 190.2-298.6 ng/ml.

Measured by its binding ability in a functional ELISA. Immobilized CD152 at 2 μg/ml can bind Anti-CD152 rabbit monoclonal antibody (CSB-RA213310A0HU), the EC50 of human CD152 protein is 27.14-34.82 ng/ml.

Measured by its binding ability in a functional ELISA. Immobilized Human IL4 (CSB-MP011659HU) at 2μg/mL can bind biotinylated Human IL4R,the EC50 is 12.68-14.23 ng/mL.

Measured by its binding ability in a functional ELISA. Immobilized HER2 at 2 μg/ml can bind Trastuzumab, the EC50 is 2.179-2.825 ng/ml.

HEK293T/Human CLDN6 Stable Cell Line
CSB-SC005508HU
Untransfected HEK293T cells (green line) and transfected Human CLDN6 HEK293T stable cells (red line) were stained with anti-CLDN6/9 antibody (CSB-RA005508MA1HU) (2µg/1*106 cells), washed and then followed by FITC-conjugated anti-Human IgG Fc antibody and analyzed with flow cytometry.

CT26/Human ROR1 Stable Cell Line
CSB-SC020067HU
Untransfected CT26 cells (green line) and transfected Human ROR1 CT26 stable cells (red line) were stained with anti-ROR1 antibody (CSB-RA020067A1HU) (2µg/1*106 cells), washed and then followed by FITC-conjugated anti-Human IgG Fc antibody and analyzed with flow cytometry.

HEK293F/Human DLL3 Stable Cell Line
CSB-SC882142HU
Untransfected HEK293 cells (green line) and transfected Human DLL3 HEK293 stable cells (red line) were stained with anti-DLL3 antibody (rovalpituzumab-like) (2µg/1*106 cells), washed and then followed by FITC-conjugated anti-Human IgG1 Fc antibody and analyzed with flow cytometry.
Overlay Peak curve showing Hela cells surface stained with CSB-RA878942MA1HU (red line) at 1:100.
Overlay histogram showing Jurkat cells stained with CSB-RA159341A0HU (red line) at 1:50.
Overlay Peak curve showing Jurkat cells surface stained with CSB-RA244537A0HU (red line) at 1:50.
Overlay Peak curve showing JK cells surface stained with CSB-RA006163MA1HU (red line) at 1:50.
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