Dr. Flamand, a professor and molecular virologist at Université Laval in Quebec city, has written an editorial calling for screening of organ donors for ciHHV-6 status and careful monitoring of recipients of ciHHV-6 donor tissues for signs of active HHV-6 infection and HHV-6 antigen-induced immune rejection. Flamand also questions whether solid organs and stem cells derived from persons with ciHHV-6 should be used in transplantation.
The inherited strain of HHV-6A in an immunosuppressed infant activated and caused hemophagocytic syndrome that was responsive to antiviral treatment. The isolated strain matched that of his ciHHV6 father.
Drs. Ishida and Shiohara from Kyorin University in Tokyo have publised an inportant new study on the dynamics of herpesvirus reactivations during and after severe drug reactions. We asked them their thoughts on the implications of their findings.
Three important tests for HHV-6 will now be available at Coppe Labs, including two that are not available commercially at any other location: the mRNA test for assessing active infection and immunohistochemistry analysis for biopsy samples.
After discovering a novel human receptor (CD134) used by HHV-6B for cellular entry last year, Dr. Yasuko Mori’s group at Kobe University Graduate School of Medicine in Japan has released additional details regarding the interaction of HHV-6B its newly described receptor.
In a recent study published in the European Journal of Allergy and Clinical Immunology, a group from Kyorin University School of Medicine in Tokyo sought to comprehensively record the dynamics of key herpesviruses beyond the acute stage of SJS/TEN. While EBV loads were higher in patients not receiving systemic corticosteroids, CMV and HHV-6 loads were higher in those receiving them.
The HHV-6 Foundation in a non-profit entity founded to encourage scientific exchange between investigators and to provide pilot grants for promising scientific and clinical research on the under- appreciated viruses HHV-6A and HHV-6B. The Foundation sponsors international conferences and supports scientists and clinicians seeking to clarify the role of the two HHV-6 viruses in disease. Since the HHV-6A and HHV-6B can smolder in the brain and other organs without circulating in the peripheral blood or plasma, identifying chronic infection is a challenge.
ciHHV-6 Patient Registry
Except for transplant patients, HHV-6 plasma DNA tests are rarely positive. Any patient testing positive should rule out chromosomally integrated HHV-6, a condition that may be associated with increased HHV-6 reactivation.