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https://www.readbyqxmd.com/read/29652189/a-review-and-update-on-papillary-immature-metaplasia-of-the-uterine-cervix-a-distinct-subset-of-low-grade-squamous-intraepithelial-lesion-proposing-a-possible-cell-of-origin
#1
Soon Auck Hong, Su Hyun Yoo, Jene Choi, Stanley J Robboy, Kyu-Rae Kim
CONTEXT: - Papillary immature metaplasia (PIM) is a known papillary cervical lesion associated with low-risk human papilloma virus (LR-HPV). OBJECTIVE: - To evaluate additional clinicopathologic features and the HPV genotypes of PIM and discuss the presumptive cell of origin. DESIGN: - A total of 26 PIM cases were evaluated by p16INK4a , cytokeratin (CK) 7, and CK17 immunohistochemical stainings. Human papilloma virus genotyping was performed, by using HPV DNA Chip, HPV polymerase chain reaction (PCR), and real-time PCR...
April 13, 2018: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/29455474/aging-impacts-cd103-cd8-t-cell-presence-and-induction-by-dendritic-cells-in-the-genital-tract
#2
Marta Rodriguez-Garcia, Jared M Fortier, Fiona D Barr, Charles R Wira
As women age, susceptibility to systemic and genital infections increases. Tissue-resident memory T cells (TRMs) are CD103+ CD8+ long-lived lymphocytes that provide critical mucosal immune protection. Mucosal dendritic cells (DCs) are known to induce CD103 expression on CD8+ T cells. While CD103+ CD8+ T cells are found throughout the female reproductive tract (FRT), the extent to which aging impacts their presence and induction by DCs remains unknown. Using hysterectomy tissues, we found that endometrial CD103+ CD8+ T cells were increased in postmenopausal compared to premenopausal women...
February 18, 2018: Aging Cell
https://www.readbyqxmd.com/read/29358619/novel-therapeutic-strategy-for-cervical-cancer-harboring-fgfr3-tacc3-fusions
#3
Ryo Tamura, Kosuke Yoshihara, Tetsuya Saito, Ryosuke Ishimura, Juan Emmanuel Martínez-Ledesma, Hu Xin, Tatsuya Ishiguro, Yutaro Mori, Kaoru Yamawaki, Kazuaki Suda, Seiya Sato, Hiroaki Itamochi, Teiichi Motoyama, Yoichi Aoki, Shujiro Okuda, Cristine R Casingal, Hirofumi Nakaoka, Ituro Inoue, Roel G W Verhaak, Masaaki Komatsu, Takayuki Enomoto
We previously found that therapeutic targetable fusions are detected across various cancers. To identify therapeutic targetable fusion in uterine cervical cancer, for which no effective gene targeted therapy has yet been clinically applied, we analyzed RNA sequencing data from 306 cervical cancer samples. We detected 445 high confidence fusion transcripts and identified four samples that harbored FGFR3-TACC3 fusion as an attractive therapeutic target. The frequency of FGFR3-TACC3-fusion-positive cervical cancer is also 1...
January 23, 2018: Oncogenesis
https://www.readbyqxmd.com/read/28691360/effect-of-lidocaine-spray-during-colposcopy-directed-cervical-biopsy-a-randomized-controlled-trial
#4
Tanyalak Wongluecha, Charuwan Tantipalakorn, Kittipat Charoenkwan, Jatupol Srisomboon
AIM: We aimed to examine the effect of lidocaine spray in reducing pain during colposcopy-directed cervical biopsy (CDB). METHODS: Two hundred women with abnormal cervical screening test results and abnormal colposcopic findings that required a CDB during April to December 2015 were enrolled. The participants were randomly assigned into one of two groups. For group 1 (lidocaine group), 10% lidocaine spray was applied thoroughly to the ectocervix. For group 2, no anesthesia was given...
July 10, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28460993/cervical-ectropion-may-be-a-cause-of-desquamative-inflammatory-vaginitis
#5
Leia Mitchell, Michelle King, Heather Brillhart, Andrew Goldstein
Desquamative inflammatory vaginitis is a poorly understood chronic vaginitis with an unknown etiology. Symptoms of desquamative inflammatory vaginitis include copious yellowish discharge, vulvovaginal discomfort, and dyspareunia. Cervical ectropion, the presence of glandular columnar cells on the ectocervix, has not been reported as a cause of desquamative inflammatory vaginitis. Although cervical ectropion can be a normal clinical finding, it has been reported to cause leukorrhea, metrorrhagia, dyspareunia, and vulvovaginal irritation...
September 2017: Sexual Medicine
https://www.readbyqxmd.com/read/28374904/cervical-collagen-is-reduced-in-non-pregnant-women-with-a-history-of-cervical-insufficiency-and-a-short-cervix
#6
Iben Sundtoft, Jens Langhoff-Roos, Puk Sandager, Steffen Sommer, Niels Uldbjerg
INTRODUCTION: Preterm cervical shortening and cervical insufficiency may be caused by a constitutional weakness of the cervix. The aim of this study was to assess the cervical collagen concentration in non-pregnant women with a history of cervical insufficiency or of a short cervix in the second trimester of pregnancy. MATERIAL AND METHODS: In this case-control study we included non-pregnant women one year or more after pregnancy: 55 controls with a history of normal delivery; 27 women with a history of cervical insufficiency; and 10 women with a history of a short cervix (<5th percentile) and 10 women with a history of a long cervix (>95th percentile) at gestational weeks 18-20...
August 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28368028/tenofovir-inhibits-wound-healing-of-epithelial-cells-and-fibroblasts-from-the-upper-and-lower-human-female-reproductive-tract
#7
Marta Rodriguez-Garcia, Mickey V Patel, Zheng Shen, Jack Bodwell, Richard M Rossoll, Charles R Wira
Disruption of the epithelium in the female reproductive tract (FRT) is hypothesized to increase HIV infection risk by interfering with barrier protection and facilitating HIV-target cell recruitment. Here we determined whether Tenofovir (TFV), used vaginally in HIV prevention trials, and Tenofovir alafenamide (TAF), an improved prodrug of TFV, interfere with wound healing in the human FRT. TFV treatment of primary epithelial cells and fibroblasts from the endometrium (EM), endocervix (CX) and ectocervix (ECX) significantly delayed wound closure...
April 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/27611224/the-effect-of-commonly-used-excipients-on-the-epithelial-integrity-of-human-cervicovaginal-tissue
#8
Minlu Hu, Tian Zhou, Charlene S Dezzutti, Lisa C Rohan
Pharmaceutical excipients are widely used in vaginal drug products. The epithelial integrity of the cervicovaginal tissue is important for HIV-1 prevention. However, the effects of excipients on cervicovaginal epithelium remain unknown. This study aims at assessing the effects of vaginal product excipients on the integrity of human cervicovaginal epithelium and on a lead HIV prevention antiretroviral drug, tenofovir (TFV). In the current study, nine excipients commonly used in vaginal formulations were incubated for 6 h with excised human ectocervical tissue...
October 2016: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/27547239/variability-of-high-risk-hpv-genotypes-among-hiv-infected-women-in-mwanza-tanzania-the-need-for-evaluation-of-current-vaccine-effectiveness-in-developing-countries
#9
Fridolin Mujuni, Mariam M Mirambo, Peter Rambau, Korn Klaus, Muller Andreas, Dismas Matovelo, Mtebe Majigo, Christa Kasang, Stephen E Mshana
BACKGROUND: High risk (HR) human papilloma Virus (HPV) genotypes have been associated with cervical cancer. In Tanzania there is a limited data on the epidemiology of HPV and genotypes distribution among HIV infected women. Here we document varieties of HPV genotypes associated with cervical squamous intraepithelial lesions (SIL) among HIV- infected women at Bugando Medical Centre, Mwanza-Tanzania. METHODS: A cross sectional hospital based study involving HIV infected women was conducted between August and October, 2014...
2016: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/27480259/association-of-tgf%C3%AE-signaling-with-the-maintenance-of-a-quiescent-stem-cell-niche-in-human-oral-mucosa
#10
Claudia D Andl, Grégoire F Le Bras, Holli Loomans, Annette S Kim, Linli Zhou, Yuhang Zhang, Thomas Andl
A dogma in squamous epithelial biology is that proliferation occurs in the basal cell layer. Notable exceptions are squamous epithelia of the human oral cavity, esophagus, ectocervix, and vagina. In these human epithelia, proliferation is rare in the basal cell layer, and the vast majority of cells positive for Ki67 and other proliferation markers are found in para- and suprabasal cell layers. This unique human feature of a generally quiescent basal cell layer overlaid by highly proliferative cells offers the rare opportunity to study the molecular features of undifferentiated, quiescent, putative stem cells in their natural context...
November 2016: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/27321759/menopausal-status-influences-the-expression-of-programmed-death-pd-1-and-its-ligand-pd-l1-on-immune-cells-from-the-human-female-reproductive-tract
#11
Zheng Shen, Marta Rodriguez-Garcia, Mickey V Patel, Fiona D Barr, Charles R Wira
PROBLEM: The programmed death 1 (PD-1)/PD-L1 pathway regulates peripheral tolerance, immune responses, and is up-regulated in chronic viral infections, including HIV infection. However, expression of PD-1/PD-L1 on immune cells from the human female reproductive tract (FRT) and possible regulation by menopause and sex hormones are poorly understood. METHOD OF STUDY: PD-1/PD-L1 expression was analyzed on CD4(+) and CD8(+) T cells, CD163(+) macrophages, and CD11c(+) dendritic cells (DC) from endometrium (EM), endocervix (CX) and ectocervix (ECX)...
August 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27280882/prevalence-predictors-and-same-day-treatment-of-positive-via-enhanced-by-digital-cervicography-and-histopathology-results-in-a-cervical-cancer-prevention-program-in-cameroon
#12
Geneva A DeGregorio, Leslie S Bradford, Simon Manga, Pius M Tih, Richard Wamai, Rebecca Ogembo, Zacharie Sando, Yuxin Liu, Constance Schwaiger, Sowmya R Rao, Karen Kalmakis, Lisa Kennedy Sheldon, Kathleen Nulah, Edith Welty, Thomas Welty, Javier Gordon Ogembo
BACKGROUND: In 2007, the Cameroon Baptist Convention Health Services (CBCHS) implemented a screen-and-treat cervical cancer prevention program using visual inspection with acetic acid enhanced by digital cervicography (VIA-DC). METHODS: We retrospectively analyzed 46,048 medical records of women who received care through the CBCHS Women's Health Program from 2007 through 2014 to determine the prevalence and predictors of positive VIA-DC, rates of same day treatment, and cohort prevalence of invasive cervical cancer (ICC)...
2016: PloS One
https://www.readbyqxmd.com/read/26864031/mucosal-humoral-immune-response-to-sivmac239%C3%A2-nef-vaccination-and-vaginal-challenge
#13
Ming Zeng, Anthony J Smith, Liang Shang, Stephen W Wietgrefe, James E Voss, John V Carlis, Qingsheng Li, Michael Piatak, Jeffrey D Lifson, R Paul Johnson, Ashley T Haase
Live attenuated vaccines such as SIV with a deleted nef gene have provided the most robust protection against subsequent vaginal challenge with wild-type (WT) SIV in the SIV-rhesus macaque model of HIV-1 transmission to women. Hence, identifying correlates of this protection could enable design of an effective HIV-1 vaccine. One such prechallenge correlate of protection from vaginal challenge has recently been identified as a system with three components: 1) IgG Abs reacting with the viral envelope glycoprotein trimeric gp41; 2) produced by plasma cells in the submucosa and ectopic tertiary lymphoid follicles in the ectocervix and vagina; and 3) concentrated on the path of virus entry by the neonatal FcR in the overlying epithelium...
March 15, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/26864001/changes-in-ectocervical-surface-area-in-women-throughout-pregnancy-compared-to-non-pregnant-and-postpartum-states
#14
COMPARATIVE STUDY
Xueya Qian, Yanmin Jiang, Lei Liu, Shao-Qing Shi, Robert E Garfield, Huishu Liu
OBJECTIVE: The objective of this study is to estimate changes in the surface area of the ectocervix (CA) in women during pregnancy and compare this to postpartum and non-pregnant states. METHODS: CA was evaluated in 210 normal nulliparous women divided into groups from early to late gestation, 40 postpartum women, and 25 non-pregnant women. CA in cm(2) was estimated from analysis of images taken with an endoscope of the cervical face and an mm scale. An mm scale was also used to determine fornix length and fornix area computed...
November 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/26750085/comparison-of-follicular-and-luteal-phase-mucosal-markers-of-hiv-susceptibility-in-healthy-women
#15
Andrea Ries Thurman, Neelima Chandra, Nazita Yousefieh, Irina Zalenskaya, Thomas Kimble, Susana Asin, Christiane Rollenhagen, Sharon M Anderson, Betsy Herold, Pedro M M Mesquita, Nicola Richardson-Harman, Tina Cunningham, Jill L Schwartz, Gustavo F Doncel
The purpose of this study was to evaluate differences in vaginal immune cell populations, vaginal tissue gene expression, antimicrobial activity of the cervicovaginal (CV) lavage (CVL), vaginal flora, and p24 antigen production from CV tissues after ex vivo human immunodeficiency virus (HIV) infection between follicular (FOL) and luteal (LUT) phases of the menstrual cycle. CV tissue biopsies, CV secretions, and blood samples were obtained as part of two longitudinal clinical trials of healthy women (CONRAD D11-119 and A12-124 studies)...
June 2016: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/26605514/a-phase-1-randomized-placebo-controlled-safety-and-pharmacokinetic-trial-of-a-tenofovir-disoproxil-fumarate-vaginal-ring
#16
RANDOMIZED CONTROLLED TRIAL
Marla J Keller, Pedro M Mesquita, Mark A Marzinke, Ryan Teller, Lilia Espinoza, Jessica M Atrio, Yungtai Lo, Bruce Frank, Sujatha Srinivasan, David N Fredricks, Lorna Rabe, Peter L Anderson, Craig W Hendrix, Patrick F Kiser, Betsy C Herold
BACKGROUND: Tenofovir disoproxil fumarate (TDF), a prodrug of tenofovir (TFV), may be ideal for topical HIV preexposure prophylaxis because it has higher tissue and cell permeability than TFV; is not adversely impacted by seminal proteins; and its active metabolite, TFV-diphosphate (TFV-DP), has a long intracellular half-life. We engineered a TDF eluting polyurethane reservoir intravaginal ring (IVR) to provide near constant mucosal antiretroviral concentrations. METHODS: A first-in-human randomized placebo-controlled trial was conducted to assess the safety and pharmacokinetics of the TDF IVR in healthy, sexually abstinent women (15 TDF and 15 placebo)...
March 13, 2016: AIDS
https://www.readbyqxmd.com/read/26484333/an-interesting-finding-in-the-uterine-cervix-schistosoma-hematobium-calcified-eggs
#17
Alexia Toller, Ana Carolina Scopin, Vanessa Apfel, Karla Calaça Kabbach Prigenzi, Fernanda Kesselring Tso, Gustavo Rubino de Azevedo Focchi, Neila Speck, Julisa Ribalta
Schistosoma hematobium infection is an endemic parasitic disease in Africa, which is frequently associated with urinary schistosomiasis. The parasite infection causes epithelial changes and disruption, facilitating the infection by the human papilloma virus and human immunodeficiency virus (HIV). The authors report the case of a 44-year-old African HIV-positive woman who presented an abnormal routine Pap smear. Colposcopy examination revealed dense acetowhite micropapillary epithelium covering the ectocervix, iodine-negative, an erosion area in endocervical canal, and atypical vessels...
April 2015: Autopsy & Case Reports
https://www.readbyqxmd.com/read/26172445/periluminal-distribution-of-hiv-binding-target-cells-and-gp340-in-the-oral-cervical-and-sigmoid-rectal-mucosae-a-mapping-study
#18
Mariia Patyka, Daniel Malamud, Drew Weissman, William R Abrams, Zoya Kurago
Studies have shown that the transmission of HIV is most likely to occur via rectal or vaginal routes, and rarely through oral exposure. However, the mechanisms of virus entry at mucosal surfaces remain incompletely understood. Prophylactic strategies against HIV infection may be attainable once gaps in current knowledge are filled. To address these gaps, we evaluated essentially normal epithelial surfaces and mapped the periluminal distribution of CD4+ HIV target cells, including T cells and antigen-presenting cells, and an HIV-binding molecule gp340 that can be expressed by epithelial cells in secreted and cell-associated forms...
2015: PloS One
https://www.readbyqxmd.com/read/26102284/expression-of-genes-for-drug-transporters-in-the-human-female-genital-tract-and-modulatory-effect-of-antiretroviral-drugs
#19
COMPARATIVE STUDY
Karolin Hijazi, Anna M Cuppone, Kieron Smith, Maria A Stincarelli, Julia Ekeruche-Makinde, Giulia De Falco, Georgina L Hold, Robin Shattock, Charles G Kelly, Gianni Pozzi, Francesco Iannelli
Anti-retroviral (ARV) -based microbicides are one of the strategies pursued to prevent HIV-1 transmission. Delivery of ARV drugs to subepithelial CD4+ T cells at concentrations for protection is likely determined by drug transporters expressed in the cervicovaginal epithelium. To define the role of drug transporters in mucosal disposition of topically applied ARV-based microbicides, these must be tested in epithelial cell line-based biopharmaceutical assays factoring the effect of relevant drug transporters...
2015: PloS One
https://www.readbyqxmd.com/read/26077739/a-pilot-study-measuring-the-distribution-and-permeability-of-a-vaginal-hiv-microbicide-gel-vehicle-using-magnetic-resonance-imaging-single-photon-emission-computed-tomography-computed-tomography-and-a-radiolabeled-small-molecule
#20
COMPARATIVE STUDY
Edward J Fuchs, Jill L Schwartz, David R Friend, Jenell S Coleman, Craig W Hendrix
Vaginal microbicide gels containing tenofovir have proven effective in HIV prevention, offering the advantage of reduced systemic toxicity. We studied the vaginal distribution and effect on mucosal permeability of a gel vehicle. Six premenopausal women were enrolled. In Phase 1, a spreading gel containing (99m)technetium-DTPA ((99m)Tc) radiolabel and gadolinium contrast for magnetic resonance imaging (MRI) was dosed intravaginally. MRI was obtained at 0.5, 4, and 24 h, and single photon emission computed tomography with conventional computed tomography (SPECT/CT) at 1...
November 2015: AIDS Research and Human Retroviruses
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