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Portillo R, Abad C, Synova T, Kastner P, Heblik D, Kucera R, Karahoda R, Staud F. Cannabidiol disrupts tryptophan metabolism in the human term placenta. Toxicology 2024; 505:153813. [PMID: 38663822 DOI: 10.1016/j.tox.2024.153813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/08/2024] [Accepted: 04/22/2024] [Indexed: 04/30/2024]
Abstract
The increasing use of cannabis during pregnancy raises concerns about its impact on fetal development. While cannabidiol (CBD) shows therapeutic promise, its effects during pregnancy remain uncertain. We investigated CBD's influence on tryptophan (TRP) metabolism in the human placenta. TRP is an essential amino acid that is metabolized via the serotonin and kynurenine (KYN) pathways, which are critical for fetal neurodevelopment. We used human term villous placental explants, an advanced ex vivo model, to study CBD's impact on key TRP metabolic enzymes. In addition, vesicles isolated from the microvillous membrane (MVM) of the human placenta were used to assess CBD's effect on placental serotonin uptake. Explants were exposed to CBD at therapeutic (0.1, 1, 2.5 μg/ml) and non-therapeutic (20 and 40 μg/ml) concentrations to determine its effects on the gene and protein expression of key enzymes in TRP metabolism and metabolite release. CBD upregulated TRP hydroxylase (TPH) and downregulated monoamine oxidase (MAO-A), resulting in reduced levels of 5-hydroxyindoleacetic acid (HIAA). It also downregulated serotonin transporter expression and inhibited serotonin transport across the MVM by up to 60% while simultaneously enhancing TRP metabolism via the kynurenine pathway by upregulating indoleamine-pyrrole 2,3-dioxygenase (IDO-1). Among kynurenine pathway enzymes, kynurenine 3 monooxygenase (KMO) was upregulated while kynurenine aminotransferase 1 (KAT-1) was downregulated; the former is associated with neurotoxic metabolite production, while the latter is linked to reduced neuroprotective metabolite levels. Overall, these results indicate that CBD modulates TRP catabolism in the human placenta, potentially disrupting the tightly regulated homeostasis of the serotonin and KYN pathways.
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Affiliation(s)
- Ramon Portillo
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Cilia Abad
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Tetiana Synova
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Petr Kastner
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Daniel Heblik
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Radim Kucera
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Rona Karahoda
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Frantisek Staud
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic.
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Chen ST, Ran F, Shi WW, Liu CK, Wang PC, Luo HN, Yang ZM. Tryptophan in the mouse diet is essential for embryo implantation and decidualization. Front Endocrinol (Lausanne) 2024; 15:1356914. [PMID: 38752181 PMCID: PMC11094255 DOI: 10.3389/fendo.2024.1356914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 04/02/2024] [Indexed: 05/18/2024] Open
Abstract
Introduction Nutritional deficiency occurs frequently during pregnancy and breastfeeding. Tryptophan (Trp), an essential amino acid which is critical for protein synthesis, serves as the precursor for serotonin, melatonin, and kynurenine (Kyn). The imbalance between serotonin and kynurenine pathways in Trp metabolism is closely related to inflammation and depression. This study assessed the effects of Trp deficiency on mouse early pregnancy. Methods Embryo implantation and decidualization were analyzed after female mice had been fed diets containing 0.2% Trp (for the control group), 0.062% Trp (for the low Trp group) and 0% Trp (for the Trp-free group) for two months. The uteri of the mice were collected on days 4, 5, and 8 of pregnancy for further analysis. Results On day 8 of pregnancy, the number of implantation sites were found to be similar between the control and the low Trp groups. However, no implantation sites were detected in the Trp-free group. On day 5 of pregnancy, plane polarity- and decidualization-related molecules showed abnormal expression pattern in the Trp-free group. On day 4 of pregnancy, there was no significant difference in uterine receptivity molecules between the low-Trp group and the control group, but uterine receptivity was abnormal in the Trp-free group. At implantation sites of the Trp-free group, IDO and AHR levels were markedly elevated. This potentially increased levels of Kyn, 2-hydroxy estradiol, and 4-hydroxy estradiol to affect decidualization. Conclusions Trp-free diet may impair decidualization via the IDO-KYN-AHR pathway.
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Affiliation(s)
- Si-Ting Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountain Region, College of Animal Science, Guizhou University, Guiyang, China
| | - Feng Ran
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountain Region, College of Animal Science, Guizhou University, Guiyang, China
| | - Wen-Wen Shi
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Cheng-Kan Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Peng-Chao Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China
| | - Hui-Na Luo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zeng-Ming Yang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountain Region, College of Animal Science, Guizhou University, Guiyang, China
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Zhang J, Wang L, Li C, Zhang H, Li R, Li M. Letrozole promotes the expression of integrin αvβ3 and HOXA10 in endometrium of endometriosis. Syst Biol Reprod Med 2021; 68:121-128. [PMID: 34962452 DOI: 10.1080/19396368.2021.2013577] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Endometriosis is a common estrogen-dependent chronic inflammatory disease that leads to infertility in women of reproductive age. Perhaps infertility reflects the reduced expression of integrin αvβ3 and HOXA10 in endometriosis. Previous studies have shown that administration of letrozole, a non-steroidal aromatase inhibitor for cancer treatment, increased the clinical pregnancy rate in women with endometriosis, but the mechanisms remain to be determined. In this communication, a rat model of endometriosis was established. Animals were treated with letrozole at 2ug/kg of body weight, intragastric administration for 15 consecutive days. Letrozole increased the expression of αvβ3 and HOXA10 in the endometriosis model and endometrial receptivity.Abbreviations: WOI: window of implantation; RGD: Arg-Gly-Asp; HOX: homeobox; E2: estradiol; SPF: specific pathogen-free.
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Affiliation(s)
- Jing Zhang
- Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Lihui Wang
- Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Chunyan Li
- Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Hui Zhang
- Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Rui Li
- Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Mingjiang Li
- Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
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Romero-Reyes J, Molina-Hernández A, Díaz NF, Camacho-Arroyo I. Role of serotonin in vertebrate embryo development. Reprod Biol 2020; 21:100475. [PMID: 33370653 DOI: 10.1016/j.repbio.2020.100475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 12/08/2020] [Accepted: 12/12/2020] [Indexed: 12/22/2022]
Abstract
Since its discovery in 1937, serotonin (5-HT) has become one of the most studied biogenic amines due to its predominant role in regulating several physiological processes such as mood, sleep, and food intake. This amine and the main components of the serotoninergic system are in almost all cells of the body. The presence of 5-HT and the serotoninergic system has been observed in oocytes and in different embryo development stages of fish, amphibians, birds, and mammals. In several classes of vertebrates, the change in the concentration of 5-HT or the alteration of the serotoninergic system, interfere with early embryo development. These data suggest that 5-HT participates in embryo development of vertebrates.
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Affiliation(s)
- Jessica Romero-Reyes
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México. Mexico City, Mexico
| | | | - Néstor Fabián Díaz
- Departamento de Fisiología y Desarrollo Celular, Instituto Nacional de Perinatología, Mexico.
| | - Ignacio Camacho-Arroyo
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México. Mexico City, Mexico.
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Mathew DJ, Sánchez JM, Passaro C, Charpigny G, Behura SK, Spencer TE, Lonergan P. Interferon tau-dependent and independent effects of the bovine conceptus on the endometrial transcriptome†. Biol Reprod 2020; 100:365-380. [PMID: 30203055 DOI: 10.1093/biolre/ioy199] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 08/14/2018] [Accepted: 09/07/2018] [Indexed: 12/21/2022] Open
Abstract
This study investigated bovine conceptus-induced modifications to the endometrial transcriptome related to effects of interferon tau (IFNT), conceptus origin (in vivo vs. in vitro), and conceptus sex. In vitro (IVF) or in vivo (superovulation and artificial insemination, AI) produced blastocysts were transferred into recipient heifers on day 7 of the estrous cycle. On day 15, IVF- or AI-derived conceptuses were obtained by uterine flushing and individually placed on endometrial explants in media for 6 h. Explants were also cultured with media alone as a control or media containing 100 ng/mL IFNT. Total explant RNA was analyzed by RNA-Seq. Incubation of endometrium with IFNT or IVF- or AI-derived conceptuses changed (P ≤ 0.001) expression of 491, 498, and 576 transcripts, respectively, compared to the control. Further, 369 differentially expressed genes (DEGs) were common between explants exposed to IFNT or a conceptus. A total of 240 DEGs were uniquely altered by conceptuses (IVF- and AI-derived) but not IFNT. Of these transcripts, 46 were shared between the IVF and AI groups, while 61 and 133 were specific to IVF and AI conceptuses, respectively. Five genes [melanophilin (MLPH), prominin-2 (PROM2), myeloid associated differentiation marker (MYADM), vomeronasal 1 receptor 4 like (VN1R4L) and 5-hydroxytryptamine receptor 1A (HTR1A)] were more abundant in endometrium exposed to female compared to male conceptuses (P < 0.001). A single gene [ADP-ribosylation factor like GTPase 4C (ARL4C)] was more abundant in response to male conceptuses (P < 0.001) than female conceptuses. These data support the hypothesis that conceptus regulation of gene expression in the endometrium is complex and involves factors other than IFNT that may have a biological role in pregnancy establishment.
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Affiliation(s)
- Daniel J Mathew
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland.,Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, West Virginia, USA
| | - José M Sánchez
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - Claudia Passaro
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - Gilles Charpigny
- INRA, Biologie du Développement et Reproduction, Jouy en Josas, France
| | - Susanta K Behura
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
| | - Thomas E Spencer
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
| | - Patrick Lonergan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
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Jiang SQ, Gou ZY, Lin XJ, Li L. Effects of dietary tryptophan levels on performance and biochemical variables of plasma and intestinal mucosa in yellow-feathered broiler breeders. J Anim Physiol Anim Nutr (Berl) 2017; 102:e387-e394. [PMID: 29152793 DOI: 10.1111/jpn.12757] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Accepted: 04/28/2017] [Indexed: 01/06/2023]
Abstract
The effects of dietary tryptophan (Trp) levels on performance and biochemical variables of plasma and intestinal mucosa in broiler breeder hens were investigated in this study. A total of 780 Lingnan yellow-feathered broiler breeder hens were randomly assigned in one of five dietary treatments with six replicates per treatment (26 birds per replicate). The breeder hens were fed either the basal diet (0.11% Trp) or the basal diet supplemented to 0.15%, 0.19%, 0.23% and 0.27% Trp, from 197 to 259 days of age. Graded levels of Trp from 0.11% to 0.27% in the diet produced quadratic (p < .05) responses in laying rate, average daily egg production, and feed conversion ratio, and quadratic (p < .01) responses in total large follicle weight and average large follicle weight. An increase in fertilization rate of total eggs was observed in breeders fed 0.27% Trp, and hatchability was higher in breeders fed 0.23% and 0.27% Trp than with 0.19% Trp (p < .05). The content of uric acid N decreased with 0.15% and 0.23% dietary Trp (p < .05). The content of GSH and the GSH-to-GSSG ratio in plasma were reduced by 0.15%, 0.19% and 0.27% Trp diets (p < .05). A higher activity of GST in plasma was observed with 0.15% Trp in relation to 0.23% and 0.27% Trp (p < .05). The activity of Na+ -K+ -ATPase of plasma in birds fed 0.27% Trp was lower than in those fed 0.15% Trp and the control birds (p < .05). There were significant influences of dietary Trp levels on S6K1, B0 AT1, Nrf2, TLR4, TNF-α and IL-6 transcripts of ileal mucosa (p < .05). The optimal dietary Trp level was 0.203% or 254 mg per hen per day, for Chinese yellow-feathered broiler breeder hens aged from 197 to 259 days.
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Affiliation(s)
- S Q Jiang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangzhou, China
| | - Z Y Gou
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangzhou, China
| | - X J Lin
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangzhou, China
| | - L Li
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangzhou, China
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Yu CP, Song YL, Zhu ZM, Huang B, Xiao YQ, Luo DY. Targeting TDO in cancer immunotherapy. Med Oncol 2017; 34:73. [PMID: 28357780 DOI: 10.1007/s12032-017-0933-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 03/25/2017] [Indexed: 12/21/2022]
Abstract
Tryptophan-2,3-dioxygenase (TDO) is a homotetrameric heme-containing protein catalyzing the initial step in the kynurenine pathway, which oxidates the 2,3-double bond of the indole ring in L-tryptophan and catalyzes it into kynurenine (KYN). The upregulation of TDO results in a decrease in tryptophan and the accumulation of KYN and its metabolites. These metabolites can affect the proliferation of T cells. Increasing evidence demonstrates that TDO is a promising therapeutic target in the anti-tumor process. Despite its growing popularity, there are only a few reviews focusing on TDO in tumors. Hence, we herein review the biological features and regulatory mechanisms of TDO. Additionally, we focus on the role of TDO in the anti-tumor immune response in different tumors. Finally, we also provide our viewpoint regarding the future developmental directions of TDO in cancer research, especially in relation to the development and application of TDO inhibitors as novel cancer treatments.
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Affiliation(s)
- Cheng-Peng Yu
- The Second Clinic Medical College, School of Medicine, Nanchang University, Nanchang, China
| | - Yun-Lei Song
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanchang University, Nanchang, China
| | - Zheng-Ming Zhu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Bo Huang
- Department of Pathology, The Affiliated Infectious Diseases Hospital of Nanchang University, Nanchang, China
| | - Ying-Qun Xiao
- Department of Pathology, The Affiliated Infectious Diseases Hospital of Nanchang University, Nanchang, China
| | - Da-Ya Luo
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanchang University, Nanchang, China. .,Jiangxi Province Key Laboratory of Tumor Pathogens and Molecular Pathology, Nanchang University, Nanchang, China.
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Zamorina SA, Timganova VP, Bochkova MS, Khramtsov PV, Raev MB. Effect of pregnancy-specific β1-glycoprotein on indoleamine-2,3-dioxygenase activity in human monocytes. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2016; 469:206-8. [PMID: 27595833 DOI: 10.1134/s0012496616040165] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Indexed: 11/23/2022]
Abstract
The role of heterogenic human pregnancy-specific glycoprotein (PSG), obtained by the authors' technology, in the regulation of the indoleamine-2,3-dioxygenase (IDO) activity in female blood monocytes has been studied in vitro. PSG stimulated IDO activity under the conditions of induction of the monocytes by interferon-γ. Upon the induction of cell proliferation by lipopolysaccharides, the stimulating effect was obtained only with 10 μg/mL of PSG. Enhanced IDO activity is probably a factor of peripheral immunological tolerance and antimicrobial protection against intracellular infections in the gestation period.
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Affiliation(s)
- S A Zamorina
- Institute of Ecology and Genetics of Microorganisms, Ural Division, Russian Academy of Sciences, Perm, Russia. .,Perm State National Research University, Perm, Russia.
| | - V P Timganova
- Institute of Ecology and Genetics of Microorganisms, Ural Division, Russian Academy of Sciences, Perm, Russia
| | - M S Bochkova
- Institute of Ecology and Genetics of Microorganisms, Ural Division, Russian Academy of Sciences, Perm, Russia
| | - P V Khramtsov
- Perm State National Research University, Perm, Russia
| | - M B Raev
- Institute of Ecology and Genetics of Microorganisms, Ural Division, Russian Academy of Sciences, Perm, Russia.,Yeltsin Ural Federal University, Yekaterinburg, Russia
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Badawy AAB. Tryptophan metabolism, disposition and utilization in pregnancy. Biosci Rep 2015; 35:e00261. [PMID: 26381576 PMCID: PMC4626867 DOI: 10.1042/bsr20150197] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 08/27/2015] [Accepted: 09/16/2015] [Indexed: 12/26/2022] Open
Abstract
Tryptophan (Trp) requirements in pregnancy are several-fold: (1) the need for increased protein synthesis by mother and for fetal growth and development; (2) serotonin (5-HT) for signalling pathways; (3) kynurenic acid (KA) for neuronal protection; (4) quinolinic acid (QA) for NAD(+) synthesis (5) other kynurenines (Ks) for suppressing fetal rejection. These goals could not be achieved if maternal plasma [Trp] is depleted. Although plasma total (free + albumin-bound) Trp is decreased in pregnancy, free Trp is elevated. The above requirements are best expressed in terms of a Trp utilization concept. Briefly, Trp is utilized as follows: (1) In early and mid-pregnancy, emphasis is on increased maternal Trp availability to meet the demand for protein synthesis and fetal development, most probably mediated by maternal liver Trp 2,3-dioxygenase (TDO) inhibition by progesterone and oestrogens. (2) In mid- and late pregnancy, Trp availability is maintained and enhanced by the release of albumin-bound Trp by albumin depletion and non-esterified fatty acid (NEFA) elevation, leading to increased flux of Trp down the K pathway to elevate immunosuppressive Ks. An excessive release of free Trp could undermine pregnancy by abolishing T-cell suppression by Ks. Detailed assessment of parameters of Trp metabolism and disposition and related measures (free and total Trp, albumin, NEFA, K and its metabolites and pro- and anti-inflammatory cytokines in maternal blood and, where appropriate, placental and fetal material) in normal and abnormal pregnancies may establish missing gaps in our knowledge of the Trp status in pregnancy and help identify appropriate intervention strategies.
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Affiliation(s)
- Abdulla A-B Badawy
- School of Health Sciences, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, Wales, U.K.
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10
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Li DD, Yin YH, Wu JY, Yang ZQ, Cao H, Zhang QL, Guo B, Yue ZP. Effects of Ido1 on mouse decidualization. Mol Biol 2015. [DOI: 10.1134/s0026893315030127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Ivashkin E, Khabarova MY, Melnikova V, Nezlin LP, Kharchenko O, Voronezhskaya EE, Adameyko I. Serotonin Mediates Maternal Effects and Directs Developmental and Behavioral Changes in the Progeny of Snails. Cell Rep 2015; 12:1144-58. [PMID: 26257175 DOI: 10.1016/j.celrep.2015.07.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 05/27/2015] [Accepted: 07/13/2015] [Indexed: 10/23/2022] Open
Abstract
Many organisms survive in constantly changing environments, including cycling seasons. Developing embryos show remarkable instant adaptations to the variable environmental challenges they encounter during their adult life, despite having no direct contact with the changing environment until after birth or hatching. The mechanisms by which such non-genetic information is transferred to the developing embryos are largely unknown. Here, we address this question by using a freshwater pond snail (Lymnaea stagnalis) as a model system. This snail normally lives in a seasonal climate, and the seasons define its locomotion, feeding, and reproductive behavior. We discovered that the serotonergic system plays a crucial role in transmitting a non-genetic instructive signal from mother to progeny. This maternal serotonin-based signal functions in embryos during a short time window at exclusively early pre-neural developmental stages and modulates the dynamics of embryonic and juvenile growth, feeding behavior, and locomotion.
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Affiliation(s)
- Evgeny Ivashkin
- Department of Experimental Neurocytology, Brain Research Branch, Scientific Center of Neurology, Russian Academy of Medical Sciences, 105064 Moscow, Russia; Department of Physiology and Pharmacology, Karolinska Institutet, 17177 Solna, Sweden
| | - Marina Yu Khabarova
- Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Victoria Melnikova
- Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Leonid P Nezlin
- Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Olga Kharchenko
- Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Elena E Voronezhskaya
- Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia.
| | - Igor Adameyko
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177 Solna, Sweden; Department of Molecular Neurosciences, Center of Brain Research, Medical University of Vienna, 1090 Vienna, Austria.
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Doherty LF, Taylor HS. Leiomyoma-derived transforming growth factor-β impairs bone morphogenetic protein-2-mediated endometrial receptivity. Fertil Steril 2015; 103:845-52. [PMID: 25596622 PMCID: PMC4363085 DOI: 10.1016/j.fertnstert.2014.12.099] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 11/15/2014] [Accepted: 12/08/2014] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To determine whether transforming growth factor (TGF)-β3 is a paracrine signal secreted by leiomyoma that inhibits bone morphogenetic protein (BMP)-mediated endometrial receptivity and decidualization. DESIGN Experimental. SETTING Laboratory. PATIENT(S) Women with symptomatic leiomyomas. INTERVENTION(S) Endometrial stromal cells (ESCs) and leiomyoma cells were isolated from surgical specimens. Leiomyoma-conditioned media (LCM) was applied to cultured ESC. The TGF-β was blocked by two approaches: TGF-β pan-specific antibody or transfection with a mutant TGF-β receptor type II. Cells were then treated with recombinant human BMP-2 to assess BMP responsiveness. MAIN OUTCOME MEASURE(S) Expression of BMP receptor types 1A, 1B, 2, as well as endometrial receptivity mediators HOXA10 and leukemia inhibitory factor (LIF). RESULT(S) Enzyme-linked immunosorbent assay showed elevated TGF-β levels in LCM. LCM treatment of ESC reduced expression of BMP receptor types 1B and 2 to approximately 60% of pretreatment levels. Preincubation of LCM with TGF-β neutralizing antibody or mutant TGF receptor, but not respective controls, prevented repression of BMP receptors. HOXA10 and LIF expression was repressed in recombinant human BMP-2 treated, LCM exposed ESC. Pretreatment of LCM with TGF-β antibody or transfection with mutant TGF receptor prevented HOXA10 and LIF repression. CONCLUSION(S) Leiomyoma-derived TGF-β was necessary and sufficient to alter endometrial BMP-2 responsiveness. Blockade of TGF-β prevents repression of BMP-2 receptors and restores BMP-2-stimulated expression of HOXA10 and LIF. Blockade of TGF signaling is a potential strategy to improve infertility and pregnancy loss associated with uterine leiomyoma.
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Affiliation(s)
- Leo F Doherty
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Hugh S Taylor
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut.
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HIV and the gut microbiota, partners in crime: breaking the vicious cycle to unearth new therapeutic targets. J Immunol Res 2015; 2015:614127. [PMID: 25759844 PMCID: PMC4352503 DOI: 10.1155/2015/614127] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 10/22/2014] [Indexed: 12/13/2022] Open
Abstract
The gut microbiota plays a key role in health and immune system education and surveillance. The delicate balance between microbial growth and containment is controlled by the immune system. However, this balance is disrupted in cases of chronic viral infections such as HIV. This virus is capable of drastically altering the immune system and gastrointestinal environment leading to significant changes to the gut microbiota and mucosal permeability resulting in microbial translocation from the gut into the peripheral blood. The changes made locally in the gut have far-reaching consequences on the other organs of the body starting in the liver, where microbes and their products are normally filtered out, and extending to the blood and even brain. Microbial translocation and their downstream effects such as increased indolamine 2,3-dioxygenase (IDO) enzyme expression and activity create a self-sustaining feedback loop which enhances HIV disease progression and constitute a vicious cycle of inflammation and immune activation combining viral and bacterial factors. Understanding this self-perpetuating cycle could be a key element in developing new therapies aimed at the gut microbiota and its fallout after infection.
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Differential expression and regulation of Ido2 in the mouse uterus during peri-implantation period. In Vitro Cell Dev Biol Anim 2014; 51:264-72. [PMID: 25408380 DOI: 10.1007/s11626-014-9833-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 10/01/2014] [Indexed: 10/24/2022]
Abstract
Ido2 is involved in tryptophan catabolism and immunity, but its physiological functions remain poorly understood. This study was undertaken to examine the expression and regulation of Ido2 gene in mouse uterus during the peri-implantation period. The results showed that Ido2 mRNA was highly expressed on day 4 of pregnancy and in the delayed implantation uterus. On days 5-8 of pregnancy, a low level of Ido2 expression was observed in the uteri. Simultaneously, Ido2 mRNA was also lowly expressed in the decidualized uterus. In the uterine stromal cells, 8-Br-cAMP could inhibit the expression of Ido2 mRNA. Moreover, Ido2 mRNA expression was gradually decreased after the stromal cells were treated with estrogen and progesterone and reached a nadir at 96 h. Further study found that overexpression of Ido2 could downregulate the expression of decidualization marker genes PRL, IGFBP1, and Dtprp under in vitro decidualization, while inhibition of Ido2 with devo-1-methyl-tryptophan (D-1-MT) could upregulate the expression of these marker genes. Under in vitro decidualization, overexpression of Ido2 could suppress the proliferation of uterine stromal cells and elevate the expression of Bax and MMP2 genes. On the contrary, Ido2 inhibitor D-1-MT could enhance the proliferation of stromal cells and expression of Bcl2 gene but decline the Bax/Bcl2 ratio. In the uterine stromal cells, estrogen and progesterone could induce the expression of Ido2 mRNA. These data indicate that Ido2 may be important for mouse embryo implantation and decidualization.
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Urata Y, Koga K, Hirota Y, Akiyama I, Izumi G, Takamura M, Nagai M, Harada M, Hirata T, Yoshino O, Kawana K, Fujii T, Osuga Y. IL-1β increases expression of tryptophan 2,3-dioxygenase and stimulates tryptophan catabolism in endometrioma stromal cells. Am J Reprod Immunol 2014; 72:496-503. [PMID: 24974860 DOI: 10.1111/aji.12282] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 05/31/2014] [Indexed: 12/31/2022] Open
Abstract
PROBLEM Immune tolerance to endometriotic cells is important to promote endometriosis. Tryptophan 2,3-dioxygenase (TDO) enhances immune tolerance by catabolizing tryptophan to kynurenine. We studied whether interleukin-1β (IL-1β), a typical endometriosis-associated cytokine, affects the expression of TDO and the catabolism of tryptophan in endometrioma stromal cells (ESCs). We also studied whether the expression of TDO is involved in IL-1β-induced secretion of IL-6 and IL-8 in ESCs. METHOD OF STUDY Nineteen endometriotic patients of reproductive age with normal menstrual cycles were recruited. Primary cultures of ESCs were treated with IL-1β and TDO siRNA. TDO mRNA was measured using quantitative PCR. TDO protein was measured using Western blotting. Concentrations of kynurenine in condition media were measured using Ehrlich reagent. Concentrations of tryptophan in conditioned media were measured using tryptophan detection kit. Concentrations of IL-6 and IL-8 in conditioned media were measured using ELISA kits. RESULTS IL-1β (1 ng/mL) increased the expression of TDO mRNA and TDO protein in ESCs. IL-1β-treated ESCs increased the production of kynurenine and the effect was inhibited by TDO siRNA. Treatment with the siRNA also decreased IL-1β-induced secretion of IL-6 and IL-8 from ESCs. CONCLUSION IL-1β is suggested to stimulate tryptophan catabolism and production of IL-6 and IL-8 by increasing TDO expression in endometriosis.
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Affiliation(s)
- Yoko Urata
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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Doherty L, Mutlu L, Sinclair D, Taylor H. Uterine fibroids: clinical manifestations and contemporary management. Reprod Sci 2014; 21:1067-92. [PMID: 24819877 DOI: 10.1177/1933719114533728] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Uterine fibroids (leiomyomata) are extremely common lesions that are associated with detrimental effects including infertility and abnormal uterine bleeding. Fibroids cause molecular changes at the level of endometrium. Abnormal regulation of growth factors and cytokines in fibroid cells may contribute to negative endometrial effects. Understanding of fibroid biology has greatly increased over the last decade. Although the current armamentarium of Food and Drug Administration-approved medical therapies is limited, there are medications approved for use in heavy menstrual bleeding that can be used for the medical management of fibroids. Emergence of the role of growth factors in pathophysiology of fibroids has led researchers to develop novel therapeutics. Despite advances in medical therapies, surgical management remains a mainstay of fibroid treatment. Destruction of fibroids by interventional radiological procedures provides other effective treatments. Further experimental studies and clinical trials are required to determine which therapies will provide the greatest benefits to patients with fibroids.
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Affiliation(s)
- Leo Doherty
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Division of Reproductive Endocrinology and Infertility, Yale School of Medicine, New Haven, CT, USA
| | - Levent Mutlu
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Division of Reproductive Endocrinology and Infertility, Yale School of Medicine, New Haven, CT, USA
| | - Donna Sinclair
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Division of Reproductive Endocrinology and Infertility, Yale School of Medicine, New Haven, CT, USA
| | - Hugh Taylor
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Division of Reproductive Endocrinology and Infertility, Yale School of Medicine, New Haven, CT, USA
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Yoshinaga K. Progesterone and Its Downstream Molecules as Blastocyst Implantation Essential Factors. Am J Reprod Immunol 2014; 72:117-28. [DOI: 10.1111/aji.12253] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 03/15/2014] [Indexed: 12/31/2022] Open
Affiliation(s)
- Koji Yoshinaga
- Fertility and Infertility Branch; Division of Extramural Research; Eunice Kennedy Shriver National Institute of Child Health and Human Development; National Institutes of Health; DHHS; Bethesda MD USA
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Li DD, Gao YJ, Tian XC, Yang ZQ, Cao H, Zhang QL, Guo B, Yue ZP. Differential expression and regulation of Tdo2 during mouse decidualization. J Endocrinol 2014; 220:73-83. [PMID: 24190896 DOI: 10.1530/joe-13-0429] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Tryptophan 2,3-dioxygenase (Tdo2) is a rate-limiting enzyme which directs the conversion of tryptophan to kynurenine. The aim of this study was to examine the expression and regulation of Tdo2 in mouse uterus during decidualization. Tdo2 mRNA was mainly expressed in the decidua on days 6-8 of pregnancy. By real-time PCR, a high level of Tdo2 expression was observed in the uteri from days 6 to 8 of pregnancy, although Tdo2 expression was observed on days 1-8. Simultaneously, Tdo2 mRNA was also detected under in vivo and in vitro artificial decidualization. Estrogen, progesterone, and 8-bromoadenosine-cAMP could induce the expression of Tdo2 in the ovariectomized mouse uterus and uterine stromal cells. Tdo2 could regulate cell proliferation and stimulate the expression of decidual marker Dtprp in the uterine stromal cells and decidual cells. Overexpression of Tdo2 could upregulate the expression of Ahr, Cox2, and Vegf genes in uterine stromal cells, while Tdo2 inhibitor 680C91 could downregulate the expression of Cox2 and Vegf genes in uterine decidual cells. These data indicate that Tdo2 may play an important role during mouse decidualization and be regulated by estrogen, progesterone, and cAMP.
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Affiliation(s)
- Dang-Dang Li
- College of Veterinary Medicine, Jilin University, Changchun 130062, People's Republic of China
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Jenabian MA, Patel M, Kema I, Kanagaratham C, Radzioch D, Thébault P, Lapointe R, Tremblay C, Gilmore N, Ancuta P, Routy JP. Distinct tryptophan catabolism and Th17/Treg balance in HIV progressors and elite controllers. PLoS One 2013; 8:e78146. [PMID: 24147117 PMCID: PMC3797729 DOI: 10.1371/journal.pone.0078146] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 09/15/2013] [Indexed: 02/07/2023] Open
Abstract
Tryptophan (Trp) catabolism into immunosuppressive kynurenine (Kyn) by indoleamine 2,3-dioxygenase (IDO) was previously linked to Th17/Treg differentiation and immune activation. Here we examined Trp catabolism and its impact on Th17/Treg balance in uninfected healthy subjects (HS) and a large cohort of HIV-infected patients with different clinical outcomes: ART-naïve, Successfully Treated (ST), and elite controllers (EC). In ART-naïve patients, increased IDO activity/expression, together with elevated levels of TNF-α and sCD40L, were associated with Treg expansion and an altered Th17/Treg balance. These alterations were normalized under ART. In contrast, Trp 2,3-dioxegenase (TDO) expression was dramatically lower in EC when compared to all other groups. Interestingly, EC displayed a distinctive Trp metabolism characterized by low Trp plasma levels similar to ART-naïve patients without accumulating immunosuppressive Kyn levels which was accompanied by a preserved Th17/Treg balance. These results suggest a distinctive Trp catabolism and Th17/Treg balance in HIV progressors and EC. Thus, IDO-induced immune-metabolism may be considered as a new inflammation-related marker for HIV-1 disease progression.
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Affiliation(s)
- Mohammad-Ali Jenabian
- Chronic Viral Illness Service, McGill University Health Centre, Montreal, Quebec, Canada ; Research Institute, McGill University Health Centre, Montreal, Quebec, Canada
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20
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Palomares AR, Lendínez-Ramírez AM, Pérez-Nevot B, Cortés-Rodríguez M, Martínez F, Garrido N, Ruiz-Galdón M, Reyes-Engel A. Genetic polymorphisms of serotonin transporter and receptor 1A could influence success during embryo implantation and maintenance of pregnancy. Fertil Steril 2013; 99:2009-16.e2. [PMID: 23499153 DOI: 10.1016/j.fertnstert.2013.02.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 01/25/2013] [Accepted: 02/14/2013] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To explore whether serotonin-related gene polymorphisms influence clinical outcomes of IVF treatment in recipients using donated oocytes. DESIGN Nested case-control study. SETTING University-affiliated infertility clinic. PATIENT(S) Two hundred forty-five women undergoing IVF treatment with donated oocytes. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Genotype and haplotype analysis of the serotonin transporter-linked polymorphic region (5-HTTLPR), rs1800532, rs6295, rs6313, and rs3813929, between recipients grouped according to the results of the oocyte donation for IVF treatment. RESULT(S) No differences were found between genotype distribution of the tryptophan hydroxylase 1, serotonin receptor 2A, and serotonin receptor 2C polymorphisms. Recipients carrying the LL genotype for 5-HTTLPR had lower clinical pregnancy rates (PR) and higher biochemical pregnancy loss (BPL) events. Lower implantation rates were found in CC carriers for 5-HT1A.rs6295 who also presented higher BPL rates. A lower incidence of clinical pregnancy was observed for LC haplotypes, corresponding to an increase in BPL rates. CONCLUSION(S) A strong association was found between early pregnancy loss and recipients carrying the 5-HTTLPR and rs6295 genetic variants. Identifying biological processes involving serotonin and embryo implantation may help to understand the dynamics of the maternal-embryo dialogue.
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Affiliation(s)
- Arturo R Palomares
- Instituto de Fertilidad Clínica Rincón, IVF Laboratory and I+D+i Unit, Malaga, Spain.
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Amireault P, Sibon D, Côté F. Life without peripheral serotonin: insights from tryptophan hydroxylase 1 knockout mice reveal the existence of paracrine/autocrine serotonergic networks. ACS Chem Neurosci 2013; 4:64-71. [PMID: 23336045 DOI: 10.1021/cn300154j] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 11/07/2012] [Indexed: 12/14/2022] Open
Abstract
Since its identification, 75 years ago, the monoamine serotonin (5-HT) has attracted considerable attention toward its role as a neurotransmitter in the central nervous system. Yet, increasing evidence, from a growing number of research groups, substantiates the fact that 5-HT regulates important nonneuronal functions. Peripheral 5-HT, synthesized by the enzyme tryptophan hydroxyase (Tph) in intestinal cells, was assumed to be distributed throughout the entire body by blood platelets and to behave as a pleiotropic hormone. A decade ago, generation of a mouse model devoid of peripheral 5-HT lead to the discovery of a second isoform of the enzyme Tph and also suggested that 5-HT might act as a local regulator in various organs. The objective of this review is to highlight the newly discovered functions played by the monoamine using the Tph1 KO murine model and to outline current findings that led to the discovery of complete serotonergic systems in unexpected organs. Within an organ, both the presence of local Tph enzymatic activity and serotonergic components are of particular importance as they support the view that 5-HT meets the criteria to be qualified as a monoamine with a paracrine/autocrine function.
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Affiliation(s)
- Pascal Amireault
- Faculté de Médecine, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Centre National de la Recherche
Scientifique, Unité Mixte de Recherche 8147, Hôpital
Universitaire Necker - Enfants Malades, 75015, Paris, France
- Laboratoire d’excellence GR-Ex
| | - David Sibon
- Faculté de Médecine, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Centre National de la Recherche
Scientifique, Unité Mixte de Recherche 8147, Hôpital
Universitaire Necker - Enfants Malades, 75015, Paris, France
- Laboratoire d’excellence GR-Ex
| | - Francine Côté
- Faculté de Médecine, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Centre National de la Recherche
Scientifique, Unité Mixte de Recherche 8147, Hôpital
Universitaire Necker - Enfants Malades, 75015, Paris, France
- Laboratoire d’excellence GR-Ex
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