BK virus-associated hemorrhagic cystitis (HC) is frequent in patients undergoing bone marrow transplantation, but it rarely occurs among other immunosuppressed patients particularly in those who are receiving chemotherapy for hematologic malignancies. Herein, we report three children with malignancies suffering from hemorrhagic cystitis due to BK virus infection who were successfully improved. ...

The BK virus a member of the Polyomaviruses family was first isolated from the urine of the kidney recipient. Infection with this virus and infection usually occurs in childhood (5-9 years) but most of the time (90%) of sera are positive and without symptoms. Polyomaviruses including the BK virus have also been suggested to be a contributing factor to some cancers in humans such as brain tumors...

background bk virus (bkv) belongs to the human polyomaviridae and the primary bkv infection is occurred during childhood then the virus could be latent through life, especially in the kidneys and urinary system. it became reactive after an immunocompromised status, such as pregnancy or transplantation. isolated bkv from different locations of the world is grouped into four subtypes using serolo...

Background: Primary infection with BK virus (BKV) is occurred during childhood and usually asymptomatic, but after initial infection, BKV may persist lifelong in the kidney and genitourinary tract. Reactivation may occur in individuals with compromised immunity such as renal transplant recipients. Due to the role of BKV in BK virus-associated nephropathy (BKVAN) and po...

background: primary infection with bk virus (bkv) is occurred during childhood and usually asymptomatic, but after initial infection, bkv may persist lifelong in the kidney and genitourinary tract. reactivation may occur in individuals with compromised immunity such as renal transplant recipients. due to the role of bkv in bk virus-associated nephropathy (bkvan) and potentially renal allograft ...

We present a review of the clinically oriented literature about BK virus, a relative of JC virus, which is the etiologic agent of progressive multifocal leukoencephalopathy (PML). The kidney, lung, eye, liver, and brain have been proposed as sites of BK virus-associated disease, both primary and reactivated. BK virus has also been detected in tissue specimens from a variety of neoplasms. We bel...

Primary hamster kidney cells were transformed by BK virus, a new human papovavirus. Transformed (HKBK) cell produced BK virus T antigen and induced tumors in hamsters that developed antibodies to BK virus T antigen. BK virus was rescued from HKBK cells by Sendai virus-assisted fusion with permissive cells. One out of six cell lines derived from HKBK cell-induced tumors showed the same character...