Abstract
Dengue is an acute arboviral infection common in tropical and subtropical countries. Dengue has been highlighted as a public health concern in the last five decades, affecting almost 50% of the population in developing nations. Dengue infection results in a complex symptomatic disease that ranges from headache, fever, and skin rash to extreme hemorrhage fever and liver dysfunction. The diagnosis of the disease is essential for effective treatment. The early onset of the infection can be detected through viral structural peptides that act as markers for detection, including Pre-Membrane (Pre-M) protein. In the currently proposed research, the structural gene obtained from local isolates was targeted for studies. For this purpose, recombinant structural protein Pre-M was amplified, cloned, and expressed in the bacterial expression system. The expression of the structural protein (Pre-M) was scrutinized by Sodium Dodecyl Sulphate-Polyacrylamide Gel Electrophoresis (SDS-PAGE) and validated by western blot and dot blot, and afterwards, the antigen was purified. The purified Pre-M protein carries the potential for the development of in-house diagnostic assay as well as for vaccine production. This study aimed to develop a highly specific, sensitive, and cost-effective in-house enzyme-linked immunoassay (ELISA) for the detection of antibodies of Pakistani most prevalent dengue virus serotype 2 (DENV-2). The success of this research would also pave the way toward developing novel vaccines for the future prevention of dengue infection.
Published Version
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