A phase I trial of pomalidomide in combination with liposomal doxorubicin in patients with Kaposi sarcoma with or without other KSHV-associated diseases.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 11552-11552
Author(s):  
Ramya Ramaswami ◽  
Kathryn Anne Lurain ◽  
Anaida Widell ◽  
Priscila Hermont Goncalves ◽  
Irene Ekwede ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Liposomal Doxorubicin ◽  
Therapy Group ◽  
Human Herpesvirus ◽  
Kaposi Sarcoma ◽  
Castleman Disease ◽  
Primary Objective ◽  
Associated Diseases ◽  
Group I ◽  
Grade 3

11552 Background: Kaposi sarcoma herpesvirus (KSHV, also known as human herpesvirus 8 [HHV-8]), is the causative agent of Kaposi sarcoma (KS), a multicentric angioproliferative tumor, a form of multicentric Castleman disease (KSHV-MCD), and KSHV inflammatory cytokine syndrome (KICS). KS can be difficult to treat when it occurs with KSHV-MCD or KICS; resulting in high mortality rates. Liposomal doxorubicin (LD) is an FDA-approved treatment for KS. Pomalidomide, an oral immunomodulatory drug, is safe and has demonstrated activity in KS, but the activity of the combination (pomalidomide+LD) in KS alone or with KSHV-associated diseases is unknown. Methods: The primary objective was to evaluate safety and tolerability of pomalidomide+LD in two groups of patients with KS requiring systemic therapy: Group I (GI)- KS alone; Group II (GII)- KS with concurrent KSHV-MCD or KICS. Patients received LD at 20 mg/m2 intravenously on day 1 of a 28-day cycle combined with pomalidomide once daily on days 1 to 21 at escalating dose levels (DL) (I - 2mg, II - 3mg, or III- 4mg) in a 3+3 design until plateau of response or other pre-specified criteria. Patients received 81mg of aspirin daily as thromboprophylaxis. KS responses were evaluated using the modified AIDS Clinical Trial Group criteria. Results: Thirty-four cisgender men, all with T1-stage KS [21 patients (62%) in GI and 13 patients (38%) in GII] were treated; 32 (94%) were HIV-infected and 22 (65%) had prior chemotherapy for KS (15/21 GI and 7/13 GII). There were no dose-limiting toxicities (DLTs) at DLIII for GI, and additional patients were treated at DLIII. In GII, grade 3 rash and pharyngeal edema were DLTs observed at 3mg of pomalidomide. Overall a median of 6 cycles were administered; the most common grade 3/4 toxicity was neutropenia. Among evaluable patients receiving >2 cycles,17/21 patients in GI had a response (all partial) (81% [95% confidence interval (CI) 58-95%]) and 5/10 patients in GII had a response (4 partial and 1 complete) (50% [95% CI 19-81%]). Conclusions: Pomalidomide+LD was well-tolerated and active in heavily pretreated patients with KS alone. In patients with KS and other KSHV-associated diseases, activity was noted but less well-tolerated. Clinical trial information: NCT02659930 .

Coexistence of disseminated Kaposi sarcoma and multicentric Castleman disease in an HIV-infected patient under viral suppression

2021 ◽  
Vol 32 (3) ◽  
pp. 286-289
Author(s):  
I-Fan Lin ◽  
Jiun-Nong Lin ◽  
Tsung-Heng Tsai ◽  
Chao-Tien Hsu ◽  
Yu-Ying Wu ◽  
...  
Keyword(s):  
Viral Load ◽  
Viral Suppression ◽  
Liposomal Doxorubicin ◽  
Kaposi Sarcoma ◽  
Castleman Disease ◽  
Severe Thrombocytopenia ◽  
Multicentric Castleman Disease ◽  
Progressive Pancytopenia ◽  
One Year ◽  
Cd4 T Cell Count

Coexistence of multicentric Castleman disease and Kaposi sarcoma is rare and might be missed without an experienced pathologists’ interpretation. A 46-year-old man had been diagnosed with HIV infection and treated with combination antiretroviral therapy of dolutegravir/abacavir/lamivudine (Triumeq) for one year. The latest viral load was 49 copies/mL and CD4 T-cell count was 192 cells/uL. He was admitted due to fever off and on, splenomegaly, general lymphadenopathy, and severe thrombocytopenia for two months. Biopsy of a purplish skin lesion and gastric tissue showed Kaposi sarcoma. The pathology of inguinal lymph nodes revealed coexistence of Kaposi sarcoma and multicentric Castleman disease. The plasma Kaposi sarcoma herpesvirus viral load was 365,000 copies/mL. During hospitalization, progressive pancytopenia and spiking fever persisted, and he died of multi-organ failure before completion of chemotherapeutic treatments with rituximab plus liposomal doxorubicin.

A phase I, open-label, multicenter, single-dose escalation and multi-dose study of a monoclonal antibody targeting CEACAM1 in subjects with selected advanced or recurrent malignancies.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 3094-3094
Author(s):  
Roni Shapira ◽  
Jeffrey S. Weber ◽  
Ravit Geva ◽  
Mario Sznol ◽  
Harriet M. Kluger ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Drug Disposition ◽  
Phase 1 ◽  
Primary Objective ◽  
Immune Checkpoints ◽  
Open Label ◽  
Trial Testing ◽  
Dose Study ◽  
Cea Gene ◽  
Grade 3

3094 Background: The carcinomembryonic antigen cell adhesion molecule 1 (CEACAM1, CD66a) is a member of the CEA gene family. CEACAM1 interacts homophilically and heterophilically with CEACAM5, and is involved in various anti-proliferative activities. CEACAM1 is expressed on a variety of epithelial and hematological cells, including multiple types of cancer and activated lymphocytes. High CEACAM1 expression in some tumor types is known to be associated with poor disease prognosis. Recently it was demonstrated CEACAM1 is co-expressed on exhausted lymphocytes with other immune checkpoints such as TIM-3 and may regulate downstream activity. CM24 is a novel humanized α-CEACAM1-specific antibody with nM affinity to the N terminal domain of CEACAM1, which blocks intercellular CEACAM1 interactions. Methods: The primary objective was to test the safety and tolerability of CM24 in adult patients with advanced or recurrent cancer. Secondary objectives included assessment of CM24 PK and PD profiles, anti-tumor response and the recommended Phase 2 dose. Patient received IV infusion of CM24 at 7 dose levels ranging between 0.01 and 10 mg/kg in a cycle of 4 doses administered q2wks followed by a 6-week observation only period and additional 6 cycles. Results: 27 patients (median pretreatment of 4 prior regimens; range 2-8, 11 colorectal, 7 melanoma, 4 ovarian, 3 gastric, 2 NSCLC; 13 males, 14 females, mean age of 60 years), were included. Treatment with CM-24 was overall well-tolerated without DLTs up to 10 mg/kg. The most frequent AE was grade 1-3 increased alanine aminotransferase (7 subjects) and the most severe AE was grade 3/4 increase in gamma-glutamyltransferase (4 subjects). Drug-related AEs were observed in 63% of the subjects with grade 3-5 occurred in 3.7%. Eight subjects (29.6%) had stable disease as the best overall response. Median overall survival was 4 (3.4, 8.0) and 6.2 (2.7, 10.2) months for the 3 and 10 mg/kg doses, suggesting dose response. Cmax, AUC and t1/2 increased with increasing dose with the longest t1/2 of 11.2 days obtained at 10mg/kg. The average target occupancy of CM24 at 3mg/kg and 10mg/kg were 75% and 93%, respectively. Conclusions: PK and target-mediated drug disposition analysis suggest that doses higher than 10mg/kg are needed for target saturation at a q2 week regimen while a q3 week regimen is less optimal. A phase 1/2 clinical trial testing CM24 in combination with anti-PD-1 therapy in patients with NSCLC including assessment of CEACAM1 expression is warranted. Clinical trial information: NCT02346955 .

scholarly journals IL-13 Expression Characterizes Effusions Associated with Primary Effusion Lymphoma but Not Other Disorders Caused By Kaposi Sarcoma Herpesvirus (KSHV)

Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 4137-4137
Author(s):  
Ramya Ramaswami ◽  
Kathryn Lurain ◽  
Vickie Marshall ◽  
Nazzarena Labo ◽  
Anaida Widell ◽  
...  
Keyword(s):  
T Cells ◽  
Viral Load ◽  
Research Funding ◽  
Primary Effusion Lymphoma ◽  
Human Herpesvirus ◽  
Kaposi Sarcoma ◽  
Cd4 Count ◽  
Rank Test ◽  
Diagnostic Challenge ◽  
Associated Diseases

Abstract BACKGROUND: Kaposi sarcoma herpesvirus (KSHV, also called human herpesvirus-8) is the causative agent of 3 disorders: primary effusion lymphoma (PEL), Kaposi sarcoma (KS), and a plasmablastic form of multicentric Castleman disease (KSHV-MCD). It also causes KSHV inflammatory cytokine syndrome (KICS), which is characterized by inflammatory symptoms and an elevated KSHV viral load. Multiple KSHV-associated diseases, which usually develop in HIV-infected patients, can present together in the same patient. Effusions can occur in each of these diseases, thereby presenting a diagnostic challenge. Identifying PEL is especially crucial as prompt treatment with multi-agent chemotherapy can be curative. We analyzed effusions from patients with KICS, PEL, and KSHV-MCD to identify distinct immunologic characteristics and virologic profiles that may aid diagnosis, inform treatment and elucidate pathogenesis. PATIENTS AND METHODS: We identified 22 HIV-infected patients with effusions [pleural effusions (20), ascites (1) and pericardial effusion (1)] with diagnoses of PEL (9 patients), KICS (8 patients), or KSHV-MCD (5 patients). All patients had a concurrent diagnosis of KS. We obtained clinical and immunologic characteristics from effusions and paired serum samples at the same timepoint for each patient. Serum and effusion cytokine levels of interleukin (IL)-1ß, IL-2, IL-4, IL-6, IL-8, IL-10, IL-13, and IL-12p70; interferon gamma (IFN-g); tumor necrosis factor alpha (TNF-a); vascular endothelial growth factor (VEGF); and inducible protein 10 (IP-10) were evaluated using a commercial multiplex assay. Peripheral blood mononuclear cell (PBMC) and effusion- associated KSHV and Epstein Barr virus (EBV) viral DNA (KSHV-VL, EBV-VL) in PBMC and cells were quantified using PCR with primers to KSHV K6 and EBV pol. Effusion and serum immunologic and virologic characteristics were compared within each disease and separately between diseases using the Wilcoxon sign rank test and Wilcoxon rank sum test, respectively. In these exploratory analyses with few patients, no correction was made for multiple comparisons. RESULTS: In patients with PEL, the median (med) age was 42 years with med CD4+ count of 54 T-cells/μL and HIV viral load (VL) of 325 copies/mL. In those with KICS, the med age was 32 years, with a med CD4+ count of 119 T-cells/μL and HIV VL of 48 copies/mL. In patients with KSHV-MCD, the med age was 31 years, med CD4+ count of 118 T-cells/μL and HIV VL was 75 copies/mL. IL-13 was substantially higher in PEL effusions as compared to serum levels (med 16.9 vs. <0.12 ng/ml; p=0.007). In addition, patients with PEL had significantly higher levels of 6 other cytokines (IL-12p70, IL-1ß, IL-2, IL-4, IL-6 and IP-10) in effusions as compared with serum (Table 1, p<0.05). In both KSHV-MCD and KICS, IL-12p70, IL-2 and IL-4 levels were higher in the effusion as compared with serum (p<0.05). In analyses comparing serum and cytokine differences among diseases, effusions from patients with PEL had detectable levels of IL-13 (med 16.9 ng/ml; interquartile range 9.7-26.9 ng/ml) compared to patients with KSHV-MCD (med <0.114 ng/ml; p=0.0037) or KICS (med <0.114 ng/ml; p=0.0003). PEL effusions had higher IL-1ß levels as compared with KICS effusions (p=0.0028). Serum IL-10 levels were also higher in PEL as compared with KICS (med 51.6 vs. 2.5ng/mL; p=0.0015). KSHV VL levels were significantly higher in PEL effusions as compared to KICS effusions (med 31,428,571 vs. 569 copies/mL; p=0.0005) and KSHV-MCD (med 231,884 copies/mL; p=0.02). CONCLUSIONS: In HIV-infected patients, effusions can indicate a diagnosis of PEL, KSHV-MCD and/or KICS. Quantifying KSHV VL in the effusion may be useful in the diagnosis of PEL. Effusions in PEL had a distinct profile compared to the circulation or other KSHV-associated diseases, particularly with regard to elevated IL-13, which may aid in diagnosis. In contrast, the inflammatory and virologic findings in KSHV-MCD and KICS effusions roughly paralleled the levels seen in the circulation. This study suggests that KSHV upregulation of IL-13 is a unique feature of PEL, which may contribute to PEL pathogenesis through STAT6 activation and be a potential future therapeutic target. Disclosures Uldrick: Celgene: Patents & Royalties: 10,001,483 B2; Celgene: Research Funding; Merck: Research Funding. Yarchoan:Celgene Corp.: Research Funding; NIH: Patents & Royalties: Patents on IL-12 for KS and cereblon-binding drugs for KSHV diseases. Spouse has patent on KSHV IL-6. Patents assigned to DHHS/NIH..

scholarly journals Kaposi sarcoma–associated herpesvirus/human herpesvirus 8–associated lymphoproliferative disorders

Blood ◽  
2019 ◽  
Vol 133 (11) ◽  
pp. 1186-1190 ◽  
Author(s):  
Eric Oksenhendler ◽  
David Boutboul ◽  
Lionel Galicier
Keyword(s):  
B Cells ◽  
Primary Effusion Lymphoma ◽  
Human Herpesvirus ◽  
Kaposi Sarcoma ◽  
Castleman Disease ◽  
Lymphoproliferative Disorders ◽  
Human Herpesvirus 8 ◽  
Herpesvirus 8 ◽  
Multicentric Castleman Disease ◽  
Infected Cells

Abstract Kaposi sarcoma–associated herpesvirus/human herpesvirus 8 is associated with multicentric Castleman disease (MCD) and primary effusion lymphoma (PEL). In MCD, infected B cells, although polyclonal, express a monotypic immunoglobulin Mλ phenotype, probably through editing toward λ light chain in mature B cells. They are considered to originate from pre–germinal center (GC) naive B cells. Both viral and human interleukin-6 contribute to the plasmacytic differentiation of these cells, and viral replication can be observed in some infected cells. PEL cells are clonal B cells considered as GC/post-GC B cells. One can also hypothesize that they originate from the same infected naive B cells and that additional factors could be responsible for their peculiar phenotype.

Phase I trial of pegylated liposomal doxorubicin and lapatinib in the treatment of metastatic breast cancer (MBC): Final results.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 610-610
Author(s):  
Mary E. Cianfrocca ◽  
Virginia G. Kaklamani ◽  
Steven T. Rosen ◽  
Jamie H. Von Roenn ◽  
Alfred Rademaker ◽  
...  
Keyword(s):  
Phase I ◽  
Liposomal Doxorubicin ◽  
Cardiac Toxicity ◽  
Metastatic Breast ◽  
Pegylated Liposomal Doxorubicin ◽  
Left Ventricular ◽  
Primary Objective ◽  
Left Ventricular Ejection ◽  
Ventricular Ejection Fraction ◽  
Grade 3

610 Background: Liposomal formulations including pegylated liposomal doxorubicin (PLD) were developed to improve the therapeutic index of anthracyclines (A). Lapatinib (L) is a selective, highly competitive inhibitor of ErbB1 and ErbB2 tyrosine kinases. Conventional doxorubicin plus trastuzumab was effective but with unacceptable cardiac toxicity. PLD plus L may be effective with less cardiac risk. Methods: This is a phase I, dose-escalation trial of PLD 20, 30, 45 and 60 mg/m2 IV every 4 weeks (maximum of 8 doses) and L, 1500 mg po daily until progression in patients (pts) with MBC. ErbB2 positivity was not required. Prior chemotherapy, endocrine therapy and trastuzumab were allowed. A subsequent amendment allowed prior L. Prior A use was limited to 240 mg/m2 of doxorubicin or 600 mg/m2 of epirubicin. Concomitant CYP3A4 inducers/ inhibitors were not allowed. A left ventricular ejection fraction (LVEF) of > 50% was required. The primary objective was to evaluate the safety (particularly cardiac), tolerability and feasibility of PLD and L. Results: 23 pts (PLD: 20 mg/m2 - 4 pts; 30 mg/m2 - 3 pts; 45 mg/m2 – 13 pts; 60 mg/m2- 3 pts) have been treated; total of 73 treatment cycles. Dose-limiting toxicity (DLT) was not reached. One pt had an LVEF drop to < 50% after 4 cycles accompanied by a pericardial effusion due to progressive disease. Treatment-related grade III/IV adverse events included: 4 pts with hand-foot-syndrome (HFS), 2 pts each with leukopenia, infection, and skin changes, 1 pt each with pain, fatigue, diarrhea, mucositis, hypoalbuminemia, anemia, cough, pleural effusion, and edema. Grade 3 HFS occurred in 2 of 3 pts in the 60 mg/m2 cohort. Response data in 21 evaluable pts: 4 PR, 5 SD, and 12 PD. Preliminary pharmacokinetic (PK) analyses (7 pts) indicate L has no effect on PLD (45 mg/m2) concentrations, but L concentrations were approximately 2-fold higher the day of PLD dosing. Conclusions: In 23 pts treated, PLD plus L was well tolerated with manageable toxicities and no treatment-related cardiac toxicity. DLT was not reached however grade 3 HFS occurred in 2 of 3 pts in the 60 mg/m2 cohort. Preliminary PK analyses demonstrate no effect of L on PLD, but an effect of PLD on L the day of PLD dosing.

Early safety from a phase 1, multicenter, open-label clinical trial of talimogene laherparepvec (T-VEC) injected into liver tumors.

2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 438-438 ◽  
Author(s):  
J. Randolph Hecht ◽  
Miklos Pless ◽  
Antonio Cubillo ◽  
Aitana Calvo ◽  
Steven Raman ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Liver Tumors ◽  
Disease Incidence ◽  
Phase 1 ◽  
Cell Cancer ◽  
Maximum Tolerated Dose ◽  
Primary Objective ◽  
Open Label ◽  
Dose Escalation Study ◽  
Grade 3

438 Background: T-VEC is a genetically modified HSV-1 oncolytic immunotherapy designed to preferentially replicate in tumors, produce GM-CSF, and stimulate anti-tumor immune responses. This study evaluates the safety of intrahepatic injection (inj) of T-VEC in patients (pts) with hepatocellular carcinoma (HCC) or liver metastases (mets). Methods: The primary objective is to assess the maximum tolerated dose. Eligible pts were ≥ 18 years (y) old, had progressive HCC or breast cancer (BC), colorectal cancer (CRC), gastroesophageal cancer, melanoma, non-small cell lung cancer, or renal cell cancer with liver mets, with measurable liver tumors suitable for inj. This dose escalation study comprised 2 groups: A (non-HCC) and B (HCC). T-VEC was given initially at 106 plaque-forming units (PFU)/mL followed by up to 4 mL of 107 PFU/mL (cohort 1) or 108 PFU/mL (cohort 2) every 21 (±3) days (Q21D), or up to 8 mL of the maximum tolerated concentration (MTC) Q21D (cohort 3). Inj volume was based on lesion size. Results: Results from cohorts 1 and 2 of group A are reported. 14 pts were treated; 12 (3 BC, 9 CRC) were DLT-evaluable: Median age was 65.5 y (range: 33, 73); median number of inj was 3; 1 pt received all 12 inj. MTC was 108 PFU/mL. There was 1 DLT, grade 3 aspartate aminotransferase (AST)/grade 2 bilirubin increase (inc), after 1 dose. In all treated pts, 4 (28.6%) had grade 3/4 treatment-related adverse events (TRAEs): anemia and inc gamma-glutamyltransferase, alanine aminotransferase (ALT), and AST. There were 2 deaths attributable to disease. Incidence of serious AEs (SAEs) is shown (Table). Conclusions: The MTC was 108 PFU/mL Q21D after initial inj at 106 PFU/mL. Repeated intrahepatic inj of T-VEC at the FDA-approved concentration for intralesional inj of melanoma was deemed tolerable and feasible in pts with liver mets. Additional investigation in combination with a PD-1 inhibitor is planned. Clinical trial information: NCT02509507. [Table: see text]

Enzalutamide and metformin combination therapy to overcome autophagy resistance in castration resistant prostate cancer (CRPC): Current results from a phase I study.

2018 ◽  
Vol 36 (6_suppl) ◽  
pp. 281-281 ◽  
Author(s):  
Mamta Parikh ◽  
Jasmine C Hyunh ◽  
Primo Lara ◽  
Chong-xian Pan ◽  
Daniel Robles ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Abdominal Pain ◽  
Phase I ◽  
Resistance Mechanism ◽  
Maximum Tolerated Dose ◽  
Primary Objective ◽  
Castration Resistant Prostate Cancer ◽  
Initial Cohort ◽  
Psa Response ◽  
Grade 3

281 Background: Preclinical models have shown that autophagy is a resistance mechanism of enzalutamide (enza), a small molecule suppressing the androgen pathway approved for treatment of CRPC. Metformin, an autophagy inhibitor, enhances preclinical therapeutic responses when combined with Enza, thus prompting a Phase I clinical trial evaluating the combination. We present results to date. Methods: Eligible patients (pts) had established CRPC, ECOG 0-2, adequate hematologic and organ function, and ≤ 2 prior treatments for CRPC. Major exclusion criteria included prior enza or metformin treatment, presence of brain metastases, history of DM2 or seizures. An initial cohort of 3 pts were treated with enza 160 mg PO qdaily and metformin 500 mg PO bid (DL1), with metformin dose escalated to 1000 mg PO bid (DL2) in subsequent 3 pts if dose-limiting toxicity (DLT) was observed in ≤1 pt in DL1. Primary objective was to establish the maximum tolerated dose (MTD), with secondary objectives of evaluating PSA response of ≥ 50%, PSA progression, and safety. Results: A total of 12 pts have been enrolled to date; mean age was 77 (range 60-95). No DLTs were observed at DL1; 1 DLT due to Grade 3 abdominal pain was observed at DL2, with an additional 6 pts subsequently enrolled in expansion. The only adverse effects ≥ Grade 3 were: syncope (1/12), hallucinations (1/12), and abdominal pain (2/12). One pt withdrew consent, 2 required dose reduction of metformin, and 1 died of progressive disease. Of 10 evaluable pts, PSA response was seen in 8 pts. Conclusions: The combination of enza 160 mg qdaily and metformin 1000 mg PO bid is safe and well-tolerated. Efficacy results to date support continued study of the combination in pts with CRPC. Clinical trial information: NCT02339168.

Molecular evidence of organ-related transmission of Kaposi sarcoma–associated herpesvirus or human herpesvirus-8 in transplant patients

Blood ◽  
2000 ◽  
Vol 96 (9) ◽  
pp. 3279-3281
Author(s):  
Mario Luppi ◽  
Patrizia Barozzi ◽  
Gaia Santagostino ◽  
Raffaella Trovato ◽  
Thomas F. Schulz ◽  
...  
Keyword(s):  
Genetic Relatedness ◽  
Primary Effusion Lymphoma ◽  
Human Herpesvirus ◽  
Kaposi Sarcoma ◽  
Castleman Disease ◽  
Human Herpesvirus 8 ◽  
Molecular Evidence ◽  
Herpesvirus 8 ◽  
Transplant Patients ◽  
High Level

In transplant patients, Kaposi sarcoma (KS)-associated herpesvirus or human herpesvirus-8 (HHV-8) infection is associated with the development of KS, primary effusion lymphoma and Castleman disease. Whether HHV-8 is either reactivated in the recipient or transmitted by the donor has been investigated so far only by serologic studies. Thus, we addressed the issue of HHV-8 transmission in the transplantation setting by molecular methods. We exploited the high level variability of the orf-K1 gene and the polymorphism of theorf-73 gene of the HHV-8 genome to assess the genetic relatedness of the HHV-8 strains identified in the posttransplant KS lesions that developed, simultaneously, 20 months after transplantation, in 2 recipients of twin kidneys from the same cadaver donor. The 100% identity of nucleotide sequence of the most variable viral region and the presence of the same, singleorf-73 type in both patients provides strong molecular evidence of organ-related transmission of HHV-8 in the setting of transplantation.

Molecular evidence of organ-related transmission of Kaposi sarcoma–associated herpesvirus or human herpesvirus-8 in transplant patients

Blood ◽  
2000 ◽  
Vol 96 (9) ◽  
pp. 3279-3281 ◽  
Author(s):  
Mario Luppi ◽  
Patrizia Barozzi ◽  
Gaia Santagostino ◽  
Raffaella Trovato ◽  
Thomas F. Schulz ◽  
...  
Keyword(s):  
Genetic Relatedness ◽  
Primary Effusion Lymphoma ◽  
Human Herpesvirus ◽  
Kaposi Sarcoma ◽  
Castleman Disease ◽  
Human Herpesvirus 8 ◽  
Molecular Evidence ◽  
Herpesvirus 8 ◽  
Transplant Patients ◽  
High Level

Abstract In transplant patients, Kaposi sarcoma (KS)-associated herpesvirus or human herpesvirus-8 (HHV-8) infection is associated with the development of KS, primary effusion lymphoma and Castleman disease. Whether HHV-8 is either reactivated in the recipient or transmitted by the donor has been investigated so far only by serologic studies. Thus, we addressed the issue of HHV-8 transmission in the transplantation setting by molecular methods. We exploited the high level variability of the orf-K1 gene and the polymorphism of theorf-73 gene of the HHV-8 genome to assess the genetic relatedness of the HHV-8 strains identified in the posttransplant KS lesions that developed, simultaneously, 20 months after transplantation, in 2 recipients of twin kidneys from the same cadaver donor. The 100% identity of nucleotide sequence of the most variable viral region and the presence of the same, singleorf-73 type in both patients provides strong molecular evidence of organ-related transmission of HHV-8 in the setting of transplantation.

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