SDC1 and HIV infectious disease: The role of syndecan-1 has been investigated during other virus infections including Kaposi's sarcoma-associated herpesvirus [49], [50], human papillomaviruses [51], and human immunodeficiency virus (HIV) infection, where, in the case of HIV infection, syndecan-1 has been shown to be involved in capturing and transmitting the virus to permissive cells [52].