Three-dimensional remodeling of collagen fibers within cervical tissues in pregnancy

The cervix is a collagen-rich connective tissue that must remain closed during pregnancy while undergoing progressive remodeling in preparation for delivery, which begins before the onset of the preterm labor process. Therefore, it is important to resolve the changes of collagen fibers during cervic...

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Main Authors: Lingxi Zhou, Rushan Jiang, Jia Meng, Shuhao Qian, Shenyi Jiang, Chuncheng Wang, Chen Yang, Zhihua Ding, Zheyue Shu, Zhiyi Liu
Format: Article
Language:English
Published: World Scientific Publishing 2023-07-01
Series:Journal of Innovative Optical Health Sciences
Subjects:
Online Access:https://www.worldscientific.com/doi/10.1142/S1793545822430052
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author Lingxi Zhou
Rushan Jiang
Jia Meng
Shuhao Qian
Shenyi Jiang
Chuncheng Wang
Chen Yang
Zhihua Ding
Zheyue Shu
Zhiyi Liu
author_facet Lingxi Zhou
Rushan Jiang
Jia Meng
Shuhao Qian
Shenyi Jiang
Chuncheng Wang
Chen Yang
Zhihua Ding
Zheyue Shu
Zhiyi Liu
author_sort Lingxi Zhou
collection DOAJ
description The cervix is a collagen-rich connective tissue that must remain closed during pregnancy while undergoing progressive remodeling in preparation for delivery, which begins before the onset of the preterm labor process. Therefore, it is important to resolve the changes of collagen fibers during cervical remodeling for the prevention of preterm labor. Herein, we assessed the spatial organization of collagen fibers in a three-dimensional (3D) context within cervical tissues of mice on day 3, 9, 12, 15 and 18 of gestation. We found that the 3D directional variance, a novel metric of alignment, was higher on day 9 than that on day 3 and then gradually decreased from day 9 to day 18. Compared with two-dimensional (2D) approach, a higher sensitivity was achieved from 3D analysis, highlighting the importance of truly 3D quantification. Moreover, the depth-dependent variation of 3D directional variance was investigated. By combining multiple 3D directional variance-derived metrics, a high level of classification accuracy was acquired in distinguishing different periods of pregnancy. These results demonstrate that 3D directional variance is sensitive to remodeling of collagen fibers within cervical tissues, shedding new light on highly-sensitive, early detection of preterm birth (PTB).
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spelling doaj.art-93b9b48987484db7ae54bc34bb47acea2023-07-19T08:37:30ZengWorld Scientific PublishingJournal of Innovative Optical Health Sciences1793-54581793-72052023-07-01160410.1142/S1793545822430052Three-dimensional remodeling of collagen fibers within cervical tissues in pregnancyLingxi Zhou0Rushan Jiang1Jia Meng2Shuhao Qian3Shenyi Jiang4Chuncheng Wang5Chen Yang6Zhihua Ding7Zheyue Shu8Zhiyi Liu9State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. ChinaState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. ChinaState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. ChinaState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. ChinaState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. ChinaState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. ChinaState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. ChinaState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. ChinaDivision of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310027 P. R. ChinaState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. ChinaThe cervix is a collagen-rich connective tissue that must remain closed during pregnancy while undergoing progressive remodeling in preparation for delivery, which begins before the onset of the preterm labor process. Therefore, it is important to resolve the changes of collagen fibers during cervical remodeling for the prevention of preterm labor. Herein, we assessed the spatial organization of collagen fibers in a three-dimensional (3D) context within cervical tissues of mice on day 3, 9, 12, 15 and 18 of gestation. We found that the 3D directional variance, a novel metric of alignment, was higher on day 9 than that on day 3 and then gradually decreased from day 9 to day 18. Compared with two-dimensional (2D) approach, a higher sensitivity was achieved from 3D analysis, highlighting the importance of truly 3D quantification. Moreover, the depth-dependent variation of 3D directional variance was investigated. By combining multiple 3D directional variance-derived metrics, a high level of classification accuracy was acquired in distinguishing different periods of pregnancy. These results demonstrate that 3D directional variance is sensitive to remodeling of collagen fibers within cervical tissues, shedding new light on highly-sensitive, early detection of preterm birth (PTB).https://www.worldscientific.com/doi/10.1142/S1793545822430052Preterm birthcervical tissuedirectional variancecollagen fiber3D analysis
spellingShingle Lingxi Zhou
Rushan Jiang
Jia Meng
Shuhao Qian
Shenyi Jiang
Chuncheng Wang
Chen Yang
Zhihua Ding
Zheyue Shu
Zhiyi Liu
Three-dimensional remodeling of collagen fibers within cervical tissues in pregnancy
Journal of Innovative Optical Health Sciences
Preterm birth
cervical tissue
directional variance
collagen fiber
3D analysis
title Three-dimensional remodeling of collagen fibers within cervical tissues in pregnancy
title_full Three-dimensional remodeling of collagen fibers within cervical tissues in pregnancy
title_fullStr Three-dimensional remodeling of collagen fibers within cervical tissues in pregnancy
title_full_unstemmed Three-dimensional remodeling of collagen fibers within cervical tissues in pregnancy
title_short Three-dimensional remodeling of collagen fibers within cervical tissues in pregnancy
title_sort three dimensional remodeling of collagen fibers within cervical tissues in pregnancy
topic Preterm birth
cervical tissue
directional variance
collagen fiber
3D analysis
url https://www.worldscientific.com/doi/10.1142/S1793545822430052
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