Introduction and multiplication of bovine Babesia in human cells

Area of Science:

• Parasitology
• Cell Biology
• Virology

Background:

• Babesia major is an intraerythrocytic parasite causing babesiosis in cattle.
• Understanding parasite-host interactions is crucial for developing effective treatments.
• Previous studies have explored parasite entry into host cells.

Purpose of the Study:

• To investigate the successful entry and potential multiplication of Babesia major parasites into human HeLa cells.
• To evaluate the efficacy of Sendai virus-mediated cell fusion for parasite transfer.

Main Methods:

• Bovine erythrocytes infected with Babesia major were utilized.
• Sendai virus was employed as a fusogen to induce fusion with human HeLa cells.
• Parasite presence and behavior within HeLa cells were observed over a three-day period.

Main Results:

• Sendai virus successfully mediated the fusion of infected erythrocytes with HeLa cells.
• Babesia major parasites were observed within the cytoplasm of HeLa cells.
• Parasite multiplication was noted in some HeLa cells over the three-day observation period.

Conclusions:

• Cell fusion using Sendai virus is a viable method for introducing Babesia major into non-host cells.
• HeLa cells can support the survival and partial replication of Babesia major parasites.
• This model system offers potential for studying Babesia major biology and host-cell interactions.