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See detailFrom the Clinics to the Bench and back to the Clinics: design of a medical treatment for Cervical Intraepithelial Neoplasia (CIN)
Jost, Maud; Frankenne, Francis; Maillard, Catherine ULg et al

Conference (2011, May 20)

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See detailMeningoradiculoneuritis due to acyclovir-resistant varicella zoster virus in an acquired immune deficiency syndrome patient
Snoeck, R.; Gérard, M.; Sadzot-Delvaux, Catherine ULg et al

in Journal of Medical Virology (1994), 42(4), 338-347

Varicella zoster virus (VZV) is recognized as one of the major viral pathogens reactivated in patients with the acquired immune deficiency syndrome (AIDS). We report the case of meningoradiculoneuritis in ... [more ▼]

Varicella zoster virus (VZV) is recognized as one of the major viral pathogens reactivated in patients with the acquired immune deficiency syndrome (AIDS). We report the case of meningoradiculoneuritis in an AIDS patient, associated with the isolation in the cerebrospinal fluid (CSF) of a thymidine kinase (TK)-deficient, acyclovir (ACV)-resistant strain of VZV. Although the virus was sensitive in vitro to phosphonoformate (PFA), the patient did not improve during PFA therapy and finally died. Several VZV strains isolated from this patient (including two isolates from the patient's CSF) were analyzed for their TK activity and subsequently the viral TK gene was sequenced showing a major deletion leading to a truncated protein. Their susceptibility to several antiviral agents including ACV, PFA, (E)-5-(2-bromovinyl)-2'-deoxyuridine (BVDU), 9-beta-D-arabinofuranosyladenine (vidarabine), (S)-1-(3-hydroxy-2-phosphonylmethoxypropyl) cytosine (HPMPC), and (S)-9-(3-hydroxy-2-phosphonylmethoxypropyl)adenine (HPMPA) was evaluated. All the virus strains isolated from this patient remained sensitive to HPMPA and HPMPC, pointing to the potential usefulness of these acyclic nucleoside phosphonates for the treatment of ACV-resistant VZV infections in immunocompromised patients. (C) 1994 Wiley-Liss, Inc. [less ▲]

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See detailSuccessful treatment of progressive mucocutaneous infection due to acyclovir- and foscarnet-resistant herpes simplex virus with (S)-1-(3-hydroxy-2-phosphonylmethoxypropyl)cytosine (HPMPC).
Snoeck, R.; Andrei, G.; Gerard, Marie-Christine ULg et al

in Clinical Infectious Diseases : An Official Publication of the Infectious Diseases Society of America (1994), 18(4), 570-8

The acyclic nucleoside phosphonate (S)-1-(3-hydroxy-2-phosphonylmethoxypropyl)cytosine (HPMPC) was used topically for the treatment of persistent mucocutaneous infections in two cases. One patient with ... [more ▼]

The acyclic nucleoside phosphonate (S)-1-(3-hydroxy-2-phosphonylmethoxypropyl)cytosine (HPMPC) was used topically for the treatment of persistent mucocutaneous infections in two cases. One patient with AIDS suffered from a perineal lesion due to infection with herpes simplex virus type 2 (HSV-2) and did not respond to acyclovir and was intolerant of foscarnet. A bone marrow transplant recipient developed orofacial lesions due to infection with herpes simplex virus type 1 (HSV-1) that failed to respond to therapy with both acyclovir and foscarnet. After topical application of HPMPC, the HSV-2 lesions completely resolved. However, the lesions recurred 3 weeks later, and, upon subsequent treatment with HPMPC, regressed. On recurrence, the virus was found to be sensitive to acyclovir, which the patient was given. Again HSV-2, which was resistant to acyclovir, emerged; similar observations were made after another cycle of HPMPC therapy. The HSV-1 isolates were resistant to acyclovir and foscarnet. Following local HPMPC treatment, the lesions regressed, but after 1 week, a second course of topical HPMPC therapy had to be instituted for recurrent infection. The lesions again regressed, and as the recurrent virus was sensitive to acyclovir, the patient was successfully treated with the drug. The results of this study point to the potential usefulness of topical HPMPC in the treatment of immunocompromised patients with HSV-related mucocutaneous infections that are refractory to therapy with acyclovir and/or foscarnet. [less ▲]

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See detailA new topical treatment for resistant herpes simplex infections.
Snoeck, R.; Andrei, G.; De Clercq, E. et al

in New England Journal of Medicine [=NEJM] (1993), 329(13), 968-9

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See detailMeningoradiculoneuritis due to acyclovir-resistant varicella-zoster virus in a patient with aids
Snoeck, R.; Gerard, M.; Sadzot-Delvaux, Catherine ULg et al

in Journal of Infectious Diseases (1993), 168(5), 1330-1331

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See detailFlow cytometric method for the detection of gpI antigens of varicella zoster virus and evaluation of anti-VZV agents
Snoeck, R.; Schols, D.; Sadzot-Delvaux, Catherine ULg et al

in Journal of Virological Methods (1992), 38(2), 243-254

Varicella zoster virus (VZV) is responsible for a primary infection (varicella.) and, upon reactivation, zoster, which in immunocompromised patients, may both lead to life-threatening disseminated disease ... [more ▼]

Varicella zoster virus (VZV) is responsible for a primary infection (varicella.) and, upon reactivation, zoster, which in immunocompromised patients, may both lead to life-threatening disseminated disease. There is a great need for antiviral compounds that are effective inhibitors of VZV replication and for rapid and accurate methods for evaluating viral sensitivity to candidate anti-VZV drugs. With the monoclonal antibody (mAb) (VL8), which is directed against the gpI of VZV, and using the fluorescence-activated cell sorter (FACS) we could readily demonstrate expression of the VZV gpI antigen at 3-4 days after VZV infection. (E)-5-(2-Bromovinyl)-2'-deoxyuridine (BVDU), (S)-9-(3-hydroxy-2-phosphonylmethoxypropyl)adenine (HPMPA) and (S)-1-(3-hydro-xy-2-phosphonylmethoxypropyl)cytosine (HPMC) were shown to be potent inhibitors of VZV replication by this assay. HPMPA and HPMPC were also active against thymidine kinase-deficient (TK-) VZV whereas BVDU was not. The flow cytometric method based on the use of mAb VL8 may be of considerable help for the early diagnosis of VZV infection and evaluation of viral sensitivity to antiviral drugs. [less ▲]

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