Bioanalytical Services

Custom Model Generation Services
Preclinical Testing Services
Bioanalytical ServicesPhenotyping ServicesAnti-Tumor Drug Efficacy EvaluationNon-GLP Toxicity Assessment ServicesMetabolic Disease Efficacy EvaluationAutoimmune Disease Efficacy EvaluationNeurodegenerative Disease Efficacy EvaluationCell Therapy & Gene Therapy Efficacy Evaluation
Germ-Free and Microbiome Services
Mouse-Derived Gut Microbiota LibraryCustomized Germ-free ServicesEvaluation of Anti-tumor Effect of Gut MicrobiotaMicrobiota Extraction and TransplantationGerm-free Rederivation and BreedingMicrobial Strain Culture and Colonization
Cell Lines and Customization Services
Cell Line Customization ServicesSyngeneic Cell LinesReporter Cell LinesCDX Cell Lines
Custom Breeding Services
Customized Mice Breeding ServicesCryopreservation and ResuscitationAssisted ReproductionMouse Rederivation Service
Animal Quality Testing Services
SNP Testing ServicesMicrobiology Testing ServicesGenetic IntegrityAnimal HealthAnimal Welfare
Assay Capabilities
Molecular PlatformPK/PD PlatformPathological Diagnosis PlatformCell-based Service PlatformFlow Cytometry PlatformImaging and Analysis PlatformBehavioral Analysis Platform
NeoMab Fully-Human Antibody Discovery Service
Other Services
Animal Facility and HusbandryReproductive and Embryology Services Isolation of Embryonic Fibroblasts

Our in vitro platform provides comprehensive testing services, including both a flow cytometry platform and a cell analysis platform. The flow cytometry platform is equipped with a Thermo Attune NxT flow cytometer (up to 14 channels) and a GentleMACS tissue processor. GemPharmatech offers in vivo services such as mouse immune cell typing, tumor-infiltrating lymphocytes (TILs) analysis, immune reconstitution in humanized mice, as well as cell-based testing services, including antibody binding assays, anti-cancer drug target screening, and cell proliferation assays.


Service specifications

1. Standard murine FACs panel 

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Murine Spleen Immune Cell Gating Strategy

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Spleen immune cell population of C57BL/6


2. TILs Analysis

By analyzing the infiltration of immune cells from tumours, Tumor-Infiltrating lymphocytes (TILs) analysis assesses the pathways by which drugs exert their anti-tumor effects.

TILs Analysis of Syngeneic Mouse Models 

Standard Murine TIL Panel

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Murine TIL Gating Strategy

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3. Antibody binding assay

Used to evaluate the binding efficiency of antibody-based drugs with targets corresponding to humanized cell lines and humanized mice, this method compares the effects between the test article and the positive control, providing a reference for in vivo effects of the test article.


3.1 Cetuximab binding with A431 cells


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Following the increasing concentration of Cetuximab at a low level, the amount of the drug bound to the cells increased, resulting in higher fluorescent signal detection. Further increase of the drug concentration after reaching the saturation concentration did not enhance the fluorescence signal detection.


3.2 Tecentriq binding with MC38-hPDL1 cells

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Tecentriq is a hPDL1-targeting antibody drug. After incubation of Tecentriq with MC38-hPDL1 (a cell line modified by GemPharmatech), Anti-human IgG fluorescent secondary antibody was added to detect the binding efficiency between the drug and the cells by flow cytometry.

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