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https://www.readbyqxmd.com/read/28453298/primary-ovarian-insufficiency-with-t-5-13-a-case-report-and-literature-review-on-disrupted-genes
#1
F Mohamadhashem, M Rafati, F Hoseininasab, S Rostami, R Tabatabaie, S Rezai, M Keramatipour, S R Ghaffari
OBJECTIVES: To report a woman with primary ovarian insufficiency (POI) with reciprocal translocation between chromosomes 5 and 13. METHODS: Chromosomal analysis (G-banding) of a 39-year-old woman with elevated gonadotropin levels and secondary amenorrhea and review of the literature with a special focus on disrupted genes at the reported breakpoints. RESULTS: A reciprocal translocation between the long arms of chromosomes 5 and 13 was identified in the patient (46,XX,t(5;13)(q13;q14))...
April 28, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28442641/regulation-of-uridine-diphosphate-glucuronosyltransferase-2b15-expression-during-ovulation-in-the-rat
#2
Phuong T M Dam, You-Jee Jang, Jae-Il Park, Bum-Chae Choi, Sang-Jin Song, Sang-Young Chun
Uridine diphosphate-glucuronosyltransferase 2B15 (UGT2B15) conjugates 5α-androstane-3α, 17β-diol (3α-diol) to 3α-diol glucuronide (3α-diol G) in steroid target tissues. The present study investigated the regulation of UGT2B15 expression during the ovulatory process in the rat. Real-time PCR analysis revealed that treatment of immature rats with equine chorionic gonadotropin followed by human chorionic gonadotropin transiently stimulated UGT2B15 gene expression in granulosa cells of preovulatory follicles within 6 h...
April 22, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28441047/distribution-of-t-cell-markers-cd4-and-cd8%C3%AE-in-lymphoid-organs-of-healthy-newborn-juvenile-and-adult-highland-plateau-yaks
#3
Qian Zhang, Kun Yang, Yufeng Huang, Junfeng He, Sijiu Yu, Yan Cui
OBJECTIVE: To investigate the distribution of T-cell markers (CD4 and CD8α) in lymphoid organs of newborn, juvenile, and adult yaks. ANIMALS: 15 healthy male yaks of various ages from highland plateaus. PROCEDURES: Yaks were allocated to groups on the basis of age (newborn [1 to 7 days old; n = 5], juvenile [5 to 7 months old; 5], and adult [3 to 4 years old; 5]). The thymus, spleen, 5 mesenteric lymph nodes, and 5 hemal nodes were harvested from each yak within 10 minutes after euthanasia...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28438898/cytotoxic-t-cell-functions-accumulate-when-cd4-is-downregulated-by-cd4-t-cells-in-african-green-monkeys
#4
Carol L Vinton, Alexandra M Ortiz, Nina Calantone, Joseph C Mudd, Claire Deleage, David R Morcock, Sonya Whitted, Jacob D Estes, Vanessa M Hirsch, Jason M Brenchley
African green monkeys (AGMs) are a natural host of SIV that do not develop simian AIDS. Adult AGMs naturally have low numbers of CD4(+) T cells and a large population of MHC class II-restricted CD8αα T cells that are generated through CD4 downregulation in CD4(+) T cells. In this article, we study the functional profiles and SIV infection status in vivo of CD4(+) T cells, CD8αα T cells, and CD8αβ T cells in lymph nodes, peripheral blood, and bronchoalveolar lavage fluid of AGMs and rhesus macaques (in which CD4 downregulation is not observed)...
April 24, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28433748/the-repertoire-of-epithelial-morphogenesis-on-display-progressive-elaboration-of-drosophila-egg-structure
#5
REVIEW
Juan Carlos Duhart, Travis T Parsons, Laurel A Raftery
Epithelial structures are foundational for tissue organization in all metazoans. Sheets of epithelial cells form lateral adhesive junctions and acquire apico-basal polarity perpendicular to the surface of the sheet. Genetic analyses in the insect model, Drosophila melanogaster, have greatly advanced our understanding of how epithelial organization is established, and how it is modulated during tissue morphogenesis. Major insights into collective cell migrations have come from analyses of morphogenetic movements within the adult follicular epithelium that cooperates with female germ cells to build a mature egg...
April 19, 2017: Mechanisms of Development
https://www.readbyqxmd.com/read/28432872/human-effector-memory-t-helper-cells-engage-with-mouse-macrophages-and-cause-graft-versus-host-like-pathology-in-skin-of-humanized-mice-used-in-a-nonclinical-immunization-study
#6
Bala S Sundarasetty, Valery Volk, Sebastian J Theobald, Susanne Rittinghausen, Dirk Schaudien, Vanessa Neuhaus, Constanca Figueiredo, Andreas Schneider, Laura Gerasch, Adele Mucci, Thomas Moritz, Constantin von Kaisenberg, Loukia M Spineli, Katherina Sewald, Armin Braun, Henning Weigt, Arnold Ganser, Renata Stripecke
Humanized mice engrafted with human hematopoietic stem cells and developing functional human T-cell adaptive responses are in critical demand to test human-specific therapeutics. We previously showed that humanized mice immunized with long-lived induced-dendritic cells loaded with the pp65 viral antigen (iDCpp65) exhibited a faster development and maturation of T cells. Herein, we evaluated these effects in a long-term (36 weeks) nonclinical model using two stem cell donors to assess efficacy and safety. Relative to baseline, iDCpp65 immunization boosted the output of effector memory CD4(+) T cells in peripheral blood and lymph nodes...
April 19, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28429464/inflammatory-features-of-frontal-fibrosing-alopecia
#7
Sophia A Ma, Sotonye Imadojemu, Kenneth Beer, John T Seykora
INTRODUCTION: Frontal fibrosing alopecia (FFA) is a cicatricial alopecia typically occurring in post-menopausal women. The etiology and pathophysiology of FFA is poorly understood but thought to be immune mediated. This study aims to further explore the extent of fibrosis and the inflammatory microenvironment by characterizing Langerhans cells (LCs), helper T cells, cytotoxic T cells, and B cells near hair follicles in FFA. METHODS: 11 paraffin-embedded tissues from patients with a clinical and histopathologic diagnosis of FFA were selected for immunohistochemical studies using CD3, CD4, CD8, CD1a, and CD20...
April 21, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28423200/cd80cd86-deficiency-disrupts-regulatory-cd4-foxp3-t-cell-homeostasis-and-induces-autoimmune-like-alopecia
#8
Ji-Hyun Bae, Woo-Sung Hwang, Yoo-Jin Jang, Yoon-Hoo Lee, Da-Eun Jang, Jung-Sik Kim, Su-Cheong Yeom
Alopecia areata (AA) is an autoimmune disease that results in spot baldness in humans. Adequate animal models for AA are currently lacking. The objective of this study was to elucidate the mechanism of autoimmune-like alopecia (ALA) in C57BL/6.CD80CD86-deficient (B6.CD80CD86(-/-) ) mice. Incidence and severity of alopecia were analyzed in 58 B6.CD80CD86(-/-) mice by using histological examination, flow cytometry, multiplex enzyme-linked immunosorbent assay, quantitative RT-PCR, and CD25 inhibition test. Both male and female B6...
April 19, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28420756/microbes-stimulate-hair-follicles
#9
Annalisa M VanHook
Commensal microbes induce hair follicles to release a chemokine that recruits regulatory T cells into neonatal skin.
April 18, 2017: Science Signaling
https://www.readbyqxmd.com/read/28418931/socs3-treatment-prevents-the-development-of-alopecia-areata-by-inhibiting-cd8-t-cell-mediated-autoimmune-destruction
#10
Zhen Gao, Yu-Qing Jin, Wei Wu
Alopecia areata is one of the most common autoimmune diseases resulting from T cell-mediated damage of hair follicles. CD8+ T cells infiltrate hair follicles and are responsible for destruction of hair follicles. However the underlying mechanisms for hair loss remain still obscure. In the present study, we identified that suppressor of cytokine signaling-3 (SOCS3), a classical inhibitor of cytokine signaling, significantly inhibits CD8+T cell maturation, interferon-γ (IFN-γ) production and alopecia areata...
March 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28410456/use-of-bone-morphogenetic-protein-15-polymorphisms-to-predict-ovarian-stimulation-outcomes-in-infertile-brazilian-women
#11
Carla Peluso, Cecilia Goldman, Viviane Cavalcanti, Guilherme Gastaldo, Camila Martins Trevisan, Denise Maria Christofolini, Caio Parente Barbosa, Bianca Bianco
AIMS: Polymorphisms in the gene encoding bone morphogenetic protein 15 (BMP15) can result in inhibited secretion or lowered bioactivity of the BMP15 protein. BMP15 levels are associated with follicle-stimulating hormone receptor (FSHR) action on granulosa cells, wherein FSHR increases the sensitivity of ovarian follicles to follicle-stimulating hormone (FSH). In this study we evaluated the BMP15 polymorphisms A905 > G/rs3897937, C901 > T/rs17003221, and C-9 > G/rs3810682 in infertile Brazilian women in terms of anti-Mullerian hormone (AMH), FSH, and estradiol serum levels, as well as controlled ovarian hyperstimulation response and assisted reproduction outcomes...
April 14, 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28407479/living-in-peace-host-microbiota-mutualism-in-the-skin
#12
Daniel J Campbell, Meghan A Koch
Commensal microbes colonize the skin where they promote immune development and prevent infection without inducing damaging inflammatory responses. In this issue of Cell Host & Microbe, Scharschmidt et al. (2017) show that during hair follicle development, commensals induce regulatory T cell migration to the skin to ensure cutaneous homeostasis.
April 12, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28401443/prevalence-of-hypophysitis-in-a-cohort-of-patients-with-metastatic-melanoma-and-prostate-cancer-treated-with-ipilimumab
#13
Lucia Brilli, Riccardo Danielli, Cristina Ciuoli, Luana Calabrò, Anna Maria Di Giacomo, Alfonso Cerase, Patrizia Paffetti, Fausta Sestini, Brunetta Porcelli, Michele Maio, Furio Pacini
OBJECTIVE: Ipilimumab is a human monoclonal antibody directed against cytotoxic T-lymphocyte antigen-4, that has been shown to significantly improve survival in patients with metastatic melanoma. Blocking cytotoxic T-lymphocyte antigen-4 elicits T cell activation, proliferation and anti-tumor response, but can also trigger immune-related adverse events. Among immune-related endocrinopathies, hypophysitis represents the most frequent, with an incidence up to 17% in patients treated with ipilimumab...
April 12, 2017: Endocrine
https://www.readbyqxmd.com/read/28400635/oral-and-cutaneous-lymphomas-other-than-mycosis-fungoides-and-s%C3%A3-zary-syndrome-in-a-mexican-cohort-recategorization-and-evaluation-of-international-geographical-disparities
#14
Amparo Hernández-Salazar, Jorge Andrés García-Vera, Yann Charli-Joseph, Guadalupe Ortiz-Pedroza, Silvia Méndez-Flores, Rocío Orozco-Topete, Ana Lilia Morales-Leyte, Judith Domínguez-Cherit, Carmen Lome-Maldonado
BACKGROUND: Nonmycosis fungoides/Sézary syndrome (non-MF/SS) primary cutaneous lymphomas (PCL) are currently categorized under the 2005-World Health Organization/European Organization for Research and Treatment of Cancer (WHO-EORTC) classification for PCL. These differ in behavior from secondary cutaneous lymphomas (SCL) and to lymphomas limited to the oral cavity (primary oral lymphomas [POL]) both categorized under the 2016-WHO classification for lymphoid neoplasms. AIMS: This study aims to report the first series of non-MF/SS PCL, SCL, and POL in a Mexican cohort, examine the applicability of current classification systems and compare our findings with those from foreign cohorts...
March 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28400072/notch-signaling-pathway-promotes-the-development-of-ovine-ovarian-follicular-granulosa-cells
#15
Jiongjie Jing, Xiaolong Jiang, Jianwei Chen, Xiaolei Yao, Miaomiao Zhao, Pengfei Li, Yangyang Pan, Youshe Ren, Wenzhong Liu, Lihua Lyu
The Notch signaling pathway regulates cell proliferation, differentiation and apoptosis involved in development of the organs and tissues such as nervous system, cartilage, lungs, kidneys and prostate as well as the ovarian follicles. This study aimed to investigate the mRNA expression and localization of NOTCH2, as the key factor in Notch signaling pathway. This was determined by PCR, real-time PCR and immunohistochemistry. Additionally, the effects of inhibiting Notch signaling pathway with different concentrations (5μM, 10μM and 20μM) of N-[N-(3, 5-Difuorophenacetyl)-l-alanyl]-S-phenylglycine t-butyl ester (DAPT), an inhibitor of Notch signaling pathway, on ovine granulosa cells was determined in vitro by detecting estradiol production using enzyme linked immunosorbent assay and expressions of the genes related to the cell cycle and apoptosis using real-time polymerase chain reaction (PCR)...
March 28, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28392642/the-contributory-roles-of-th17-lymphocyte-and-cytotoxic-t-lymphocyte-at-the-hair-bulge-region-as-well-as-the-hair-bulb-area-in-the-chronic-alopecia-areata-patients
#16
Jin-Woo Hong, Chae-Young Lee, Seung-Min Ha, Seung-Hwan Choi, Tae-Hoon Kim, Ki-Hoon Song, Ki-Ho Kim
BACKGROUND: Alopecia areata (AA) is a T cell-mediated autoimmune disease that targets hair follicles and interrupts hair regrowth. The microenvironment of the effector T cells and their related cytokines may affect immunopathogenesis around the hair bulb/bulge. OBJECTIVE: To determine the contributory roles of the effector T cell subsets and related cytokines to the pathogenesis of AA. METHODS: We investigated the correlation between histopathological grades and four clinical prognostic factors in 331 patients with AA, and analyzed the topography of T cell infiltrates and related cytokines around the hair bulb/bulge according to histopathological grades through immunohistochemical and double immunofluorescence studies on a subset of AA specimens...
April 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28369800/ageing-adversely-affects-the-migration-and-function-of-marginal-zone-b-cells
#17
Vivian M Turner, Neil A Mabbott
Marginal zone (MZ) B cells are positioned within the spleen to capture blood-borne Ag and immune complexes and deliver them to follicular dendritic cells in the B cell follicles. We show that within the spleens of aged mice antigen (Ag) capture by MZ B cells, and their ability to shuttle between the follicle and MZ were impaired. The ability of aged MZ B cells to migrate towards the MZ chemoattractant sphingosine 1-phosphate was increased, suggesting that aged MZ B cells had a greater propensity to be retained within the MZ...
April 2, 2017: Immunology
https://www.readbyqxmd.com/read/28368475/the-adequate-corpus-luteum-mir-96-promotes-luteal-cell-survival-and-progesterone-production
#18
Bushra T Mohammed, Sadanand D Sontakke, Jason Ioannidis, W Colin Duncan, F Xavier Donadeu
Context: Inadequate progesterone production from the corpus luteum is associated with pregnancy loss. Data available in model species suggest important roles of miRNAs in luteal development and maintenance. Objective: To comprehensively investigate the involvement of miRNAs during the ovarian follicle-luteal transition. Design: The effects of specific miRNAs on survival and steroid production by human luteinized granulosa cells (hLGCs) were tested using specific miRNA inhibitors...
March 20, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28367148/reduction-of-t-helper-cell-responses-to-recall-antigen-mediated-by-codelivery-with-peptidoglycan-via-the-intestinal-nanomineral-antigen-pathway
#19
Rachel E Hewitt, Jack Robertson, Carolin T Haas, Laetitia C Pele, Jonathan J Powell
Naturally occurring intestinal nanomineral particles constituently form in the mammalian gut and trap luminal protein and microbial components. These cargo loaded nanominerals are actively scavenged by M cells of intestinal immune follicles, such as Peyer's patches and are passed to antigen-presenting cells. Using peripheral blood mononuclear cell populations as an in vitro model of nanomineral uptake and antigen presentation, we show that monocytes avidly phagocytose nanomineral particles bearing antigen and peptidoglycan (PGN), and that the presence of PGN within particles downregulates their cell surface MHC class II and upregulates programmed death receptor ligand 1...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28366629/affinity-chromatography-of-a-binder-of-1-methyladenine-the-maturation-inducing-hormone-for-starfish-oocytes
#20
Tetsuo Toraya, Atsushi Kuyama, Seiichi Tanaka, Masatoyo Yamamoto, Tadamasa Ohmiya, Yuri Saito, Tomoko Tanabe
Starfish oocytes are arrested at the prophase stage of the first meiotic division in the ovary. They resume meiosis by the stimulus of 1-methyladenine (1-MeAde), the maturation-inducing hormone for starfish oocytes. Putative 1-MeAde receptors have been suggested to be present on the oocyte surface, but not yet been characterized biochemically. As reported recently (T. Toraya, T. Kida, A. Kuyama, S. Matsuda, S. Tanaka, Y. Komatsu, T. Tsurukai, Biochem. Biophys. Res. Commun. 485 (2017) 41-46), it became possible to detect unknown 1-MeAde binders of starfish oocytes by immunophotoaffinity labeling, i...
May 13, 2017: Biochemical and Biophysical Research Communications
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