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Santamaria Costa X, Beatriz R, Nanda K, Estefania F, Raul P, David V, Luciano R, Sergi Q, Juan José T, Ramon A, Julio H, Inmaculada M, Felip V, Carlos S. O-218 Single-cell RNA sequencing reveals that Ashermańs syndrome is caused by chronic inflammation that induces differential molecular and cellular cartography in the human endometrium. Hum Reprod 2022. [DOI: 10.1093/humrep/deac105.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
What is the differential cellular, transcriptomic and immunological differences of the human endometrium in AS versus healthy patients at single cell resolution?
Summary answer
The epithelial fraction is decreased, the myeloid and lymphoid cell lineages increased with an altered inflammation, inhibition of angiogenesis and EM abnormal remodeling.
What is known already
Asherman’s Syndrome (AS) is an acquired pathological condition, defined by the presence of intrauterine adhesions (IUAs) causing the uterine walls to adhere to one another resulting in menstrual abnormalities, pelvic pain, infertility, recurrent miscarriage, and abnormal placentation. However, the underlaying cellular, transcriptomic and immunological mechanisms at the single-cell level that occur in AS have not been investigated.
Study design, size, duration
Single cell RNA-seq (scRNA-seq) was performed on 41,854 cells corresponding to endometrial biopsies from a total of 7 individuals with severe AS (AFS classification 1998). These patients were involved in a phase I/II, prospective, non-randomized, uncontrolled, multicenter, interventional clinical trial authorized by the Spanish Medicines Agency (AEMPS)(2016-003973-23). Control healthy endometrium was represented by 68,026 cell transcriptomes from our previous work (Wang et al. 2020).
Participants/materials, setting, methods
Seven patients were included. Ultrasound and hysteroscopies were performed in mid secretory phase. Endometrial specimens were digested with collagenase and filtered. Epithelial cells were digested with trypsin and red blood cells removed. After MACS live enrichment, cells were loaded onto ChromiumNext GEM (10xGenomics). Libraries were sequenced in a Novaseq, and reads processed with CellRanger. Quality filtering, normalization, clustering and differential expression analysis were applied from ‘Seurat’ package. Functional enrichment analysis was computed using ‘escape’ package.
Main results and the role of chance
In total 109,880 cell transcriptomes were compared and found changes in cell population ratios in two specific cell types. First, the epithelial fraction was decreased in AS compared to healthy condition (26.53% vs 45.7%, respectively) specifically the epithelium representing the opening of the window of implantation (WOI) (0.25% vs 2.01%respectively), and the ciliated epithelium (0.84% vs 6.12%, respectively). Second, the myeloid and lymphoid cell lineages, which are much more abundant in AS samples. Macrophages (1.97% vs 0.24%, respectively), CD8+ T cells (3.71% vs 1.34%, respectively), and CD8- T cells (2.28% vs 0.55%, respectively).
In addition, there was a different transcriptomic composition represented by three differential linked clusters related to AS condition. First, a unique stromal cluster labelled as stromal_ACTA2 that express genes related to contractile functions (ACTA2, MYH11, DES). Second, a specific AS epithelium cluster closely related to antigen processing and presentation of HLA class II family genes. Third, a KRT8 ACTA2 cluster composed by genes related to collagen (COL3A1 and COL1A1) and IGFBP5.
Enrichment analysis performed with ssGSEA revealed the functional impact of the AS condition identifying an increase in different GO terms related to tissue damage, pro-inflammatory processes, inhibition of angiogenesis.
Limitations, reasons for caution
Despite these promising results, this is an study in progress to be completed with 10 patients
Wider implications of the findings
These findings describe for the first time the pathophysiology of AS at single cell level with the functional involvement of inflammation, fibrosis, and defective angiogenesis in this pathological condition.
Trial registration number
Eudra CT 2016-003975-23
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Affiliation(s)
| | - R Beatriz
- Igenomix Foundation, Research and Development , Paterna, Spain
| | - K Nanda
- Universidad Valencia, Ob/Gyn , Paterna, Spain
| | - F Estefania
- Asherman Therapy, Reproductive Medicine , Paterna, Spain
| | - P Raul
- Igenomix, Research and Development , Paterma, Spain
| | - V David
- Vall Hebron Institut Oncologia , Hematology, Barcelona, Spain
| | - R Luciano
- Banc de Sang i Teixits de Catalunya, Teràpies Cel.lulars , Barcelona, Spain
| | - Q Sergi
- Banc de Sang i Teixits de Catalunya, Teràpies Cel.lulars , Barcelona, Spain
| | - T Juan José
- Quenet-Torrent Institute , Ob/Gyn, Barcelona, Spain
| | - A Ramon
- Clínica Quiron, Unidad Reproducción Asistida , Barcelona, Spain
| | - H Julio
- Hospital Vall Hebron , Obstetricia, Barcelona, Spain
| | - M Inmaculada
- Igenomix Foundation, Research and Development , Paterna, Spain
| | - V Felip
- Igenomix Foundation, Research and Development , Paterna, Spain
| | - S Carlos
- Igenomix Foundation, Research and Development , Paterna, Spain
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Goswami L, Sarkar S, Mukherjee S, Das S, Barman S, Raul P, Bhattacharyya P, Mandal NC, Bhattacharya S, Bhattacharya SS. Vermicomposting of Tea Factory Coal Ash: metal accumulation and metallothionein response in Eisenia fetida (Savigny) and Lampito mauritii (Kinberg). Bioresour Technol 2014; 166:96-102. [PMID: 24907568 DOI: 10.1016/j.biortech.2014.05.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 05/07/2014] [Accepted: 05/11/2014] [Indexed: 06/03/2023]
Abstract
Earthworms can accumulate heavy metals in their intestines to a great extent. Impact of feed materials and duration of metal exposure on natural activity of earthworms are rather unclear; this investigation therefore addresses the impact of metal rich Tea Factory Coal Ash (TFCA) on reproduction, composting and metal accumulation ability of Eisenia fetida and Lampito mauritii. Earthworm count and cocoon production increased significantly during vermicomposting. pH of the vermicomposted mixtures shifted toward neutrality, total organic C decreased substantially and total N enhanced significantly compared to composting. High heavy metal (Mn, Zn, Cu, As) accumulation was recorded in the intestine of both the earthworm species. Moreover, gradual increase in the metal-inducible metallothionein concentration indicated the causal mechanism of metal accumulation in these species. TFCA+cow dung (CD) (1:1) were most favorable feed mixture for E. fetida and TFCA+CD (1:2) were good for L. mauritii in regard to metal accumulation and compost quality.
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Affiliation(s)
- L Goswami
- Department of Environmental Science, Tezpur University, Assam 784028, India
| | - S Sarkar
- Department of Zoology, Visva-Bharati, Santiniketan, West Bengal, India
| | - S Mukherjee
- Department of Zoology, Visva-Bharati, Santiniketan, West Bengal, India
| | - S Das
- Department of Botany, Visva-Bharati, Santiniketan, West Bengal, India
| | - S Barman
- Department of Botany, Visva-Bharati, Santiniketan, West Bengal, India
| | - P Raul
- Defence Research Laboratory, DRDO, Tezpur, Assam, India
| | - P Bhattacharyya
- Indian Statistical Institute, North East Centre, Tezpur, Assam 784028, India
| | - N C Mandal
- Department of Botany, Visva-Bharati, Santiniketan, West Bengal, India
| | - S Bhattacharya
- Department of Zoology, Visva-Bharati, Santiniketan, West Bengal, India
| | - S S Bhattacharya
- Department of Environmental Science, Tezpur University, Assam 784028, India.
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Gaucher A, Raul P, Wiederkehr P, Pourel J, Bertrand A, Colomb JN, Ethgen D. [Scintigraphic study of reflex algodystrophy]. Rev Rhum Mal Osteoartic 1982; 49:841-6. [PMID: 6218599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Isotope investigation of reflex sympathetic dystrophy is not limited to an evaluation of bony up-take, it also includes examination of the early dynamic scintigraphy of the vessels. The late views of bone scans reflect, above all, the bone's affinity for phosphate complexes i.e. the degree of osteoblast activity. Generally, dystrophies, independent of their site, show increased locoregional uptake, often quite intense, which appears early in the course of the disease. This supports histopathological findings. There are several advantages in using the bone scan in the investigation of reflex dystrophy: early diagnosis before the development of radiological signs, precise evaluation of the local extension of the dystrophic process and detection of the incidence of multifocal forms, follow-up of the course of the disease, definition of new clinical forms: patchy algodystrophy partial, decalcifying dystrophy, sub-radiological dystrophy, the aetiology in certain sites (especially the hip). Early dynamic scans that dystrophy is accompanied by an increase in the vascular compartment and decreased circulatory flow, a sign of the local stage of the disease. There is also an increase of the interstitial compartment, greater than that of the vascular compartment, explaining the presence of edema. The pathophysiological information gained from dynamic studies is matched by the therapeutic information: evaluation, or even prediction, of the effect of a given drug (cortisone, calcitonin).
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