Hybridoma Cell Line Optimization Introduction

If the antibody productivity of the only remaining hybridoma cell line is low and there is no alternative hybridoma cell line available, then hybridoma cell line optimization to produce more antibodies is one of the most important ways to perform hybridoma rescue. Our advanced hybridoma platform at Creative Biolabs can provide you with quality hybridoma cell line optimization services to protect your research.

Hybridoma Cell Line Optimization Based on Physical Stimulation

Optimization of cell lines based on physical stimulation generally includes several aspects such as the detection of contaminants, cell line viability recovery, clonal testing, and subcloning.

First, the most common factor that affects hybridoma cell activity is mycoplasma contamination. Mycoplasma contamination has the potential to cause the failure of hybridoma cell fusion and reduced or even complete loss of antibody secretion capacity. Therefore, for hybridoma cells with low activity, they first need to be bio-assayed to determine whether there is contamination in the cell line. Common contaminations include fungal contamination, yeast contamination, mycoplasma contamination, gummi nigra contamination, viral contamination, and cell cross-contamination. In general, the type of contamination can be specifically screened by microscopic observation of cell morphology, DNA staining, short tandem repeat sequences, and chromosome fraction type.

Second, prolonged freezing or inappropriate freezing methods can affect cell activity. Therefore, the viability of hybridoma cells can be determined by assessing their activity first. If their viability is indeed low, a scientific approach can be taken to restore cell viability and establish a healthy culture.

In general, the clonality of healthy cultures needs to be tested prior to antibody production. When it is determined that the clonality of the cells is high, the subsequent operation is carried out. Otherwise, even if a highly active cell line is obtained, it may result in a low yield of monoclonal antibodies.

Finally, depending on the status of the cells, the correct subcloning method is selected to subclone the hybridoma cells for which clonality has been determined for the production or construction of a cell bank.

Hybridoma Cell Line Optimization Based on Prevention of Cell Line Drift

With long-term use of cell lines, there is a risk that mutations may occur in hybridoma cell lines. Some mutations will have no effect on antibodies, but some may cause hybridoma cells to fail to produce antibodies, thereby threatening the safety of the cell line. Therefore, if hybridoma cells are less active, the cell line phenotype may be tested.

Cell line phenotypic assays include but are not limited to, assays for cell cycle, cell proliferation, cell migration, and cell invasion. Continuous monitoring and cell line authentication are essential to maintain cellular activity.

In addition, related studies have shown that transcriptome changes occur during changes in nutrient and metabolite concentrations, and cells are cultured in batch or fed-batch cultures. Therefore, during the experiment, we should strictly control the conditions and operation of the cell culture. The occurrence of cell line drift is reduced by careful and conscientious manipulation to ensure the activity of hybridoma cells.

Creative Biolabs is excited to share with you the key points and experiences in hybridoma cell line optimization to facilitate the smooth running of your project.

All listed services and products are For Research Use Only. Do Not use in any diagnostic or therapeutic applications.

Online Inquiry

	USA: Europe: Germany:
	Call us at: USA: UK: Germany:
	Fax:
	Email: