The effect of hematoporphyrin derivative and human erythrocyte ghost encapsulated hematoporphyrin derivative on a mouse myeloma cell line.
The effect of hematoporphyrin derivative (HPD) in combination with HeNe laser radiation on a mouse myeloma cell line, P3X63Ag8U1, has been examined. The effects of varying doses of radiation and photosensitizer were assessed using both dye exclusion and clonogenic assay systems. Development of photosensitivity by those cells in the presence of hematoporphyrin (HP) and HPD has been examined. In addition, with a view towards assessing erythrocyte encapsulation as a vehicle for an immunotargeting system for HPD, the effect of HPD encapsulated in such a manner, on the mouse myeloma cell line has been examined. From the results obtained from these in vitro experiments the authors believe that this may be a convenient means of packaging HPD for antibody-mediated delivery to tumour cells.更多