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https://www.readbyqxmd.com/read/27906027/antiretroviral-treatment-regardless-of-cd4-count-the-universal-answer-to-a-contextual-question
#1
REVIEW
Serge P Eholié, Anani Badje, Gérard M Kouame, Jean-Baptiste N'takpe, Raoul Moh, Christine Danel, Xavier Anglaret
After a period where it was recommended to start antiretroviral therapy (ART) early, the CD4 threshold for treating asymptomatic adults dropped to 200/mm(3) at the beginning of the 2000s. This was mostly due to a great prudence with regards to drug toxicity. The ART-start CD4 threshold in most international guidelines was then raised to 350/mm(3) in 2006-2009 and to 500/mm(3) in 2009-2013. Between 2012 and 2015, international guidelines went the last step further and recommended treating all HIV-infected adults regardless of their CD4 count...
July 26, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27904275/hidden-pictures-of-kaposi-s-sarcoma-in-psoriatic-lesions-a-diagnostic-challenge
#2
Jisook Yoo, Mingyul Jo, Min-Soo Kim, Kwang-Hyun Choi, Hyang-Joon Park, Mihn-Sook Jue
Kaposi's sarcoma is a multifocal proliferative vascular tumor involving the skin and other organ and psoriasis is a chronic cutaneous disease with papules and plaques with white scale. Development of Kaposi's sarcoma in psoriasis patients has been reported rarely. A 71-year-old man presented with multiple brownish to violaceous plaques on both feet and arms which were found 4 months ago. The biopsy confirmed Kaposi's sarcoma. The patient was diagnosed with psoriasis vulgaris 10 years ago and Kaposi's sarcoma lesions developed between psoriatic plaques...
December 2016: Annals of Dermatology
https://www.readbyqxmd.com/read/27902811/topical-diphencyprone-immunotherapy-for-painful-nodular-acral-recurrence-of-kaposi-sarcoma
#3
Calogero Pagliarello, Ignazio Stanganelli, Giuseppe Fabrizi, Claudio Feliciani, Sergio Di Nuzzo
No abstract text is available yet for this article.
November 30, 2016: JAMA Dermatology
https://www.readbyqxmd.com/read/27902590/genotypic-distribution-of-hhv-8-in-aids-individuals-without-and-with-kaposi-sarcoma-is-genotype-b-associated-with-better-prognosis-of-aids-ks
#4
Tania Regina Tozetto-Mendoza, Karim Yaqub Ibrahim, Adriana Fumie Tateno, Cristiane Mendes de Oliveira, Laura Massami Sumita, Maria Carmem Arroyo Sanchez, Expedito José Luna, Ligia Camara Pierrotti, Jan Felix Drexler, Paulo Henrique Braz-Silva, Claudio Sérgio Pannuti, Camila Malta Romano
AIDS-associated Kaposi's sarcoma (AIDS-KS) caused by human herpes virus 8 (HHV-8) is the most severe and resistant form of KS tumor. Our aim was to verify whether there is an association between HHV-8 variability and development of AIDS-KS in Brazil by comparing the HHV-8 variability between individuals without and with KS. Saliva samples and blood, when available, were analyzed by polymerase chain reaction (PCR) techniques for detection of the fragments of ORF K1 of HHV-8, which were then genotyped and analyzed regarding the genetic variability...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27893813/azidothymidine-sensitizes-primary-effusion-lymphoma-cells-to-kaposi-sarcoma-associated-herpesvirus-specific-cd4-t-cell-control-and-inhibits-virf3-function
#5
Samantha J Williamson, Samantha M Nicol, Michael Stürzl, Shereen Sabbah, Andrew D Hislop
Kaposi sarcoma-associated herpesvirus (KSHV) is linked with the development of Kaposi sarcoma and the B lymphocyte disorders primary effusion lymphoma (PEL) and multi-centric Castleman disease. T cell immunity limits KSHV infection and disease, however the virus employs multiple mechanisms to inhibit efficient control by these effectors. Thus KSHV-specific CD4+ T cells poorly recognize most PEL cells and even where they can, they are unable to kill them. To make KSHV-infected cells more sensitive to T cell control we treated PEL cells with the thymidine analogue azidothymidine (AZT), which sensitizes PEL lines to Fas-ligand and TRAIL challenge; effector mechanisms which T cells use...
November 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27893764/virus-mediated-alterations-in-mirna-factors-and-degradation-of-viral-mirnas-by-mcpip1
#6
Christine Happel, Dhivya Ramalingam, Joseph M Ziegelbauer
Kaposi's sarcoma-associated herpesvirus (KSHV), the causative agent of Kaposi's sarcoma, encodes 25 mature viral miRNAs. MCP-1-induced protein-1 (MCPIP1), a critical regulator of immune homeostasis, has been shown to suppress miRNA biosynthesis via cleavage of precursor miRNAs through its RNase domain. We demonstrate that MCPIP1 can directly cleave KSHV and EBV precursor miRNAs and that MCPIP1 expression is repressed following de novo KSHV infection. In addition, repression with siRNAs to MCPIP1 in KSHV-infected cells increased IL-6 and KSHV miRNA expression, supporting a role for MCPIP1 in IL-6 and KSHV miRNA regulation...
November 2016: PLoS Biology
https://www.readbyqxmd.com/read/27890943/recapitulation-of-acquired-immuno-deficiency-syndrome-associated-kaposi-s-sarcoma
#7
REVIEW
Balaji Govindan
Acquired immuno deficiency syndrome (AIDS) associated Kaposi's sarcoma (KS) is one of the clinical forms of KS. KS is caused by human herpes viruses 8 or KS associated herpes virus (KSHV). In India, till now, only 16 cases of AIDS associated KS was reported. Of all the clinical forms of KS, AIDS associated KS is distinct in many ways viz.; cutaneous manifestations commonly affects face and trunk rather than lower limbs, more mucosal lesions, rapidly progressive, and early systemic involvement. When human immunodeficiency virus (HIV) is co-infected with KSHV, in addition to the other pathogenic factors for the development of KS, HIV Tat protein promotes the proliferation of cytokine-activated endothelial cells and stimulates KS...
July 2016: Indian Journal of Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27885868/a-case-report-of-iatrogenic-cutaneous-kaposi-sarcoma-due-to-rituximab-therapy-for-thrombotic-thrombocytopenic-purpura
#8
Kimberly Jerdan, Joshua Brownell, Manu Singh, Marylee Braniecki, Lawrence Chan
No abstract text is available yet for this article.
November 25, 2016: Acta Oncologica
https://www.readbyqxmd.com/read/27882054/risk-of-cancer-among-commercially-insured-hiv-infected-adults-on-antiretroviral-therapy
#9
Jeannette Y Lee, Ishwori Dhakal, Corey Casper, Ariela Noy, Joel M Palefsky, Missak Haigentz, Susan E Krown, Richard F Ambinder, Ronald T Mitsuyasu
The objective of this study was to explore the cancer incidence rates among HIV-infected persons with commercial insurance who were on antiretroviral therapy and compare them with those rates in the general population. Paid health insurance claims for 63,221 individuals 18 years or older, with at least one claim with a diagnostic code for HIV and at least one filled prescription for an antiretroviral medication between January 1, 2006, and September 30, 2012, were obtained from the LifeLink® Health Plan Claims Database...
2016: Journal of Cancer Epidemiology
https://www.readbyqxmd.com/read/27872774/pulmonary-kaposi-sarcoma-an-uncommon-cause-of-respiratory-failure-in-the-era-of-highly-active-antiretroviral-therapy-case-report-and-review-of-the-literature
#10
Stanley M Nwabudike, Stefan Hemmings, Yonette Paul, Yordanis Habtegebriel, Octavius Polk, Alem Mehari
Kaposi Sarcoma (KS) is the most common malignancy associated with Acquired Immune Deficiency Syndrome (AIDS) and is caused by Human Herpesvirus 8 (HHV 8) or Kaposi Sarcoma Herpesvirus (KSHV). In about 90% of cases Kaposi Sarcoma is associated with cutaneous lesions; however visceral disease can occur in the absence of cutaneous involvement. In the era of Highly Active Antiretroviral Therapy (HAART), the incidence of KS has declined. Clinical features of pulmonary KS might be difficult to distinguish from pneumonia in the immunocompromised patients and could lead to diagnostic challenges...
2016: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/27871174/viral-inhibition-of-prr-mediated-innate-immune-response-learning-from-kshv-evasion-strategies
#11
REVIEW
Hye-Ra Lee, Un Yung Choi, Sung-Woo Hwang, Stephanie Kim, Jae U Jung
The innate immune system has evolved to detect and destroy invading pathogens before they can establish systemic infection. To successfully eradicate pathogens, including viruses, host innate immunity is activated through diverse pattern recognition receptors (PRRs) which detect conserved viral signatures and trigger the production of type I interferon (IFN) and pro-inflammatory cytokines to mediate viral clearance. Viral persistence requires that viruses co-opt cellular pathways and activities for their benefit...
November 30, 2016: Molecules and Cells
https://www.readbyqxmd.com/read/27870005/hiv-protease-inhibitors-for-the-treatment-of-cancer-repositioning-hiv-protease-inhibitors-while-developing-more-potent-no-hybridized-derivatives
#12
REVIEW
Danijela Maksimovic-Ivanic, Paolo Fagone, James McCubrey, Klaus Bendtzen, Sanja Mijatovic, Ferdinando Nicoletti
The possible use of HIV protease inhibitors (HIV-PI) as new therapeutic option for the treatment of cancer primarily originated from their success in treating HIV-related Kaposi's sarcoma (KS). While these findings were initially attributed to immune reconstitution and better control of oncogenic viral infections, the number of reports on solid tumors, KS, lymphoma, fibrosarcoma, multiple myeloma, and prostate cancer suggest other mechanisms for the anti-neoplastic activity of PIs. However, a major drawback for the possible adoption of HIV-PIs in the therapy of cancer relies on their relatively weak anticancer potency, and important side effects...
November 21, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27863194/pomalidomide-for-symptomatic-kaposi-s-sarcoma-in-people-with-and-without-hiv-infection-a-phase-i-ii-study
#13
Mark N Polizzotto, Thomas S Uldrick, Kathleen M Wyvill, Karen Aleman, Cody J Peer, Margaret Bevans, Irini Sereti, Frank Maldarelli, Denise Whitby, Vickie Marshall, Priscila H Goncalves, Vikram Khetani, William D Figg, Seth M Steinberg, Jerome B Zeldis, Robert Yarchoan
Purpose Kaposi's sarcoma (KS) is a multicentric tumor caused by Kaposi's sarcoma-associated herpesvirus. Unmet needs include therapies that are oral, anthracycline sparing, and deliverable in resource-limited settings. We evaluated pomalidomide, an oral immune modulatory agent, in patients with symptomatic KS. Methods The primary objectives were to assess tolerability, pharmacokinetics, and activity. Initial dosage level was 5 mg once per day for 21 days per 28-day cycle, with a de-escalated level of 3 mg if not tolerable, and aspirin 81 mg once per day thromboprophylaxis...
December 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27861579/correction-genipin-enhances-kaposi-s-sarcoma-associated-herpesvirus-genome-maintenance
#14
Miyeon Cho, Seok Won Jung, Soomin Lee, Kuwon Son, Gyu Hwan Park, Jong-Wha Jung, Yu Su Shin, Taegun Seo, Hyosun Cho, Hyojeung Kang
[This corrects the article DOI: 10.1371/journal.pone.0163693.].
2016: PloS One
https://www.readbyqxmd.com/read/27854239/kshv-entry-and-trafficking-in-target-cells-hijacking-of-cell-signal-pathways-actin-and-membrane-dynamics
#15
REVIEW
Binod Kumar, Bala Chandran
Kaposi's sarcoma associated herpesvirus (KSHV) is etiologically associated with human endothelial cell hyperplastic Kaposi's sarcoma and B-cell primary effusion lymphoma. KSHV infection of adherent endothelial and fibroblast cells are used as in vitro models for infection and KSHV enters these cells by host membrane bleb and actin mediated macropinocytosis or clathrin endocytosis pathways, respectively. Infection in endothelial and fibroblast cells is initiated by the interactions between multiple viral envelope glycoproteins and cell surface associated heparan sulfate (HS), integrins (α3β1, αVβ3 and αVβ5), and EphA2 receptor tyrosine kinase (EphA2R)...
November 14, 2016: Viruses
https://www.readbyqxmd.com/read/27853834/proliferation-status-defines-functional-properties-of-endothelial-cells
#16
Christoph Lipps, Muhammad Badar, Milada Butueva, Tatyana Dubich, Vivek Vikram Singh, Sophie Rau, Axel Weber, Michael Kracht, Mario Köster, Tobias May, Thomas F Schulz, Hansjörg Hauser, Dagmar Wirth
Homeostasis of solid tissue is characterized by a low proliferative activity of differentiated cells while special conditions like tissue damage induce regeneration and proliferation. For some cell types it has been shown that various tissue-specific functions are missing in the proliferating state, raising the possibility that their proliferation is not compatible with a fully differentiated state. While endothelial cells are important players in regenerating tissue as well as in the vascularization of tumors, the impact of proliferation on their features remains elusive...
November 16, 2016: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/27852859/kshv-micrornas-target-gadd45b-to-protect-infected-cells-from-cell-cycle-arrest-and-apoptosis
#17
Xiaoyan Liu, Christine Happel, Joseph M Ziegelbauer
: Kaposi's sarcoma is one of the most common malignancies in HIV-infected individuals. The responsible agent, Kaposi's sarcoma-associated herpesvirus (KSHV, HHV8) expresses multiple microRNAs (miRNAs), but the targets and functions of these miRNAs are not completely understood. After infection in primary endothelial cells with KSHV, growth arrest DNA damage-inducible gene 45 beta (GADD45B) is one of the most repressed genes using genomic expression profiling. GADD45B was also repressed in mRNA expression profiling experiments when KSHV miRNAs were introduced to uninfected cells...
November 16, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27849632/malignancies-in-women-with-hiv-infection
#18
Nora T Oliver, Elizabeth Y Chiao
PURPOSE OF REVIEW: To review current knowledge of different cancer states affecting women with HIV infection. RECENT FINDINGS: With improved survival of persons with HIV in the post-cART era, the landscape of malignancies in this population has greatly changed with fewer AIDS-defining malignancies (ADM) and a growing number of non-AIDS defining malignancies (NADM). Women, however, continue to represent a vulnerable population at risk for certain ADM and NADM such as cervical, anal, and breast cancer...
January 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/27837274/regulation-of-the-viral-life-cycle-by-murine-gammaherpesvirus-68-micrornas
#19
Soowon Kang, Chanoh Jeon, Kyungtaek Im, Moon Jung Song, Hyeyoung Min
γ-Herpesviruses (γHV) such as Epstein-Barr virus and Kaposi's sarcoma-associated herpesvirus are important human pathogens involved in lymphoproliferation and tumorigenesis. Murine gammaherpesvirus 68 (MHV-68, γHV-68) is an effective model for the study of γHV pathogenesis and host-virus interaction because it is closely related to human γHV. Similarly to human γHV, MHV-68 encodes 15 microRNAs (miRNAs). Although their functions remain unknown, they are thought to regulate the viral life cycle or host-virus interactions, similarly to other human γHV...
November 11, 2016: Archives of Virology
https://www.readbyqxmd.com/read/27832802/classic-kaposi-s-sarcoma-complete-response-to-radiation-therapy-a-case-report
#20
Kennet Ramírez, José Zavala, David Morán, Diana Hernández, Alberto Jiménez
BACKGROUND: Classic Kaposi's sarcoma is a lymphatic endothelial cell neoplasm usually present on the skin of the upper and lower extremities. Although it commonly affects human immunodeficiency virus positive patients, there have been some human immunodeficiency virus negative cases reported. We report an uncommon presentation of stage IV classic Kaposi's sarcoma in an human immunodeficiency virus negative patient in Latin America with complete clinical response using only radiation therapy treatment...
November 10, 2016: Journal of Medical Case Reports
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