1
|
Rocca G, Galli M, Celant A, Stucchi G, Marongiu L, Cozzi S, Innocenti M, Granucci F. Multiplexed imaging to reveal tissue dendritic cell spatial localisation and function. FEBS Lett 2024. [PMID: 38969618 DOI: 10.1002/1873-3468.14962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/20/2024] [Accepted: 05/28/2024] [Indexed: 07/07/2024]
Abstract
Dendritic cells (DCs) play a pivotal role in immune surveillance, acting as sentinels that coordinate immune responses within tissues. Although differences in the identity and functional states of DC subpopulations have been identified through multiparametric flow cytometry and single-cell RNA sequencing, these methods do not provide information about the spatial context in which the cells are located. This knowledge is crucial for understanding tissue organisation and cellular cross-talk. Recent developments in multiplex imaging techniques can now offer insights into this complex spatial and functional landscape. This review provides a concise overview of these imaging methodologies, emphasising their application in identifying DCs to delineate their tissue-specific functions and aiding newcomers in navigating this field.
Collapse
Affiliation(s)
- Giuseppe Rocca
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Milan, Italy
| | - Marco Galli
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Milan, Italy
| | - Anna Celant
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Milan, Italy
| | - Giulia Stucchi
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Milan, Italy
| | - Laura Marongiu
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Milan, Italy
| | - Stefano Cozzi
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Milan, Italy
| | - Metello Innocenti
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Milan, Italy
| | - Francesca Granucci
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Milan, Italy
| |
Collapse
|
2
|
Banovac I, Prkačin MV, Kirchbaum I, Trnski-Levak S, Bobić-Rasonja M, Sedmak G, Petanjek Z, Jovanov-Milosevic N. Morphological and Molecular Characteristics of Perineuronal Nets in the Human Prefrontal Cortex-A Possible Link to Microcircuitry Specialization. Mol Neurobiol 2024:10.1007/s12035-024-04306-1. [PMID: 38958887 DOI: 10.1007/s12035-024-04306-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 06/13/2024] [Indexed: 07/04/2024]
Abstract
Perineuronal nets (PNNs) are a type of extracellular matrix (ECM) that play a significant role in synaptic activity and plasticity of interneurons in health and disease. We researched PNNs' regional and laminar representation and molecular composition using immunohistochemistry and transcriptome analysis of Brodmann areas (BA) 9, 14r, and 24 in 25 human postmortem brains aged 13-82 years. The numbers of VCAN- and NCAN-expressing PNNs, relative to the total number of neurons, were highest in cortical layers I and VI while WFA-binding (WFA+) PNNs were most abundant in layers III-V. The ECM glycosylation pattern was the most pronounced regional difference, shown by a significantly lower proportion of WFA+ PNNs in BA24 (3.27 ± 0.69%) compared to BA9 (6.32 ± 1.73%; P = 0.0449) and BA14 (5.64 ± 0.71%; P = 0.0278). The transcriptome of late developmental and mature stages revealed a relatively stable expression of PNN-related transcripts (log2-transformed expression values: 6.5-8.5 for VCAN and 8.0-9.5 for NCAN). Finally, we propose a classification of PNNs that envelop GABAergic neurons in the human cortex. The significant differences in PNNs' morphology, distribution, and molecular composition strongly suggest an involvement of PNNs in specifying distinct microcircuits in particular cortical regions and layers.
Collapse
Affiliation(s)
- Ivan Banovac
- Department of Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, Šalata 11, HR-10000, Zagreb, Croatia
- Croatian Institute for Brain Research, Scientific Centre of Excellence for Basic, Clinical and Translational Neuroscience, School of Medicine University of Zagreb, Šalata 12, HR-10000, Zagreb, Croatia
| | - Matija Vid Prkačin
- Department of Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, Šalata 11, HR-10000, Zagreb, Croatia
- Croatian Institute for Brain Research, Scientific Centre of Excellence for Basic, Clinical and Translational Neuroscience, School of Medicine University of Zagreb, Šalata 12, HR-10000, Zagreb, Croatia
| | - Ivona Kirchbaum
- Department of Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, Šalata 11, HR-10000, Zagreb, Croatia
| | - Sara Trnski-Levak
- Department of Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, Šalata 11, HR-10000, Zagreb, Croatia
| | - Mihaela Bobić-Rasonja
- Department of Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, Šalata 11, HR-10000, Zagreb, Croatia
- Department of Biology, University of Zagreb School of Medicine, Šalata 3, HR-10000, Zagreb, Croatia
| | - Goran Sedmak
- Department of Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, Šalata 11, HR-10000, Zagreb, Croatia
| | - Zdravko Petanjek
- Department of Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, Šalata 11, HR-10000, Zagreb, Croatia
- Croatian Institute for Brain Research, Scientific Centre of Excellence for Basic, Clinical and Translational Neuroscience, School of Medicine University of Zagreb, Šalata 12, HR-10000, Zagreb, Croatia
| | - Natasa Jovanov-Milosevic
- Department of Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, Šalata 11, HR-10000, Zagreb, Croatia.
- Croatian Institute for Brain Research, Scientific Centre of Excellence for Basic, Clinical and Translational Neuroscience, School of Medicine University of Zagreb, Šalata 12, HR-10000, Zagreb, Croatia.
- Department of Biology, University of Zagreb School of Medicine, Šalata 3, HR-10000, Zagreb, Croatia.
| |
Collapse
|
3
|
Csorba A, Imre L, Szalai I, Lukáts O, Fodor E, Szabó A, Nagy ZZ. Presentation of Meibomian Acini Compared to Dermal Papillae of the Eyelid Margin, Using Confocal Laser Scanning Microscopy and Corresponding Histology. Klin Monbl Augenheilkd 2024. [PMID: 38802075 DOI: 10.1055/a-2302-7526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
BACKGROUND Numerous studies have investigated the eyelid margin using confocal laser scanning microscopy (CLSM) and have presented morphological alterations of the examined structures, which were presumed to be Meibomian acini. However, recent data confirm that these structures are the cross-sections of dermal papillae of the dermoepidermal junction. This study aims to present the morphological appearance of Meibomian acini examined by confocal laser scanning microscopy in comparison to dermal papillae, and to reveal the corresponding patterns with specific histological sections. METHODS AND MATERIAL Twenty healthy patients were examined with a CLSM device in vivo at the marginal edge of the eyelid. Twenty-two samples of full-thickness eyelid wedges from 22 patients treated surgically with ectropion were collected, of which 11 freshly excised samples were imaged on the incision surface with CLSM ex vivo and 11 eyelids underwent conventional histological preparation. The represented structures on CLSM images were compared to Meibomian acini on histological sections in terms of area, longest and shortest diameter, as well as depth and density. RESULTS On in vivo CLSM images, Meibomian orifices, epidermal cells, and dermal connective tissue could be identified, the latter in a cross-sectional view of the dermal papillae surrounded by basal cells of the epidermis, forming reflective ring-like structures. All morphological parameters of these structures differed from Meibomian acini measured on histological sections. In contrast, the CLSM images of the incision surface showed acinar units with the same morphology as the Meibomian acini seen in the histological images and no statistically significant difference was found between the corresponding parameters. CONCLUSION The morphological appearance of Meibomian acini differs from the structures that were previously presumed as Meibomian glands on CLSM images. In vivo imaging of Meibomian glands by commonly used in vivo CLSM cannot be performed.
Collapse
Affiliation(s)
- A Csorba
- Department of Ophthalmology, Semmelweis University of Medicine, Budapest, Hungary
| | - L Imre
- Department of Ophthalmology, Semmelweis University of Medicine, Budapest, Hungary
- Department of Ophthalmology, Bajcsy-Zsilinszky Teaching Hospital, Budapest, Hungary
| | - I Szalai
- Department of Ophthalmology, Semmelweis University of Medicine, Budapest, Hungary
| | - O Lukáts
- Department of Ophthalmology, Semmelweis University of Medicine, Budapest, Hungary
| | - E Fodor
- Department of Ophthalmology, Semmelweis University of Medicine, Budapest, Hungary
| | - A Szabó
- Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Z Z Nagy
- Department of Ophthalmology, Semmelweis University of Medicine, Budapest, Hungary
| |
Collapse
|
4
|
Ratko M, Crljen V, Tkalčić M, Mažuranić A, Bubalo P, Škavić P, Banovac I, Dugandžić A. Expression of guanylate cyclase C in human prefrontal cortex depends on sex and feeding status. Front Mol Neurosci 2024; 17:1361089. [PMID: 38840774 PMCID: PMC11150535 DOI: 10.3389/fnmol.2024.1361089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 04/30/2024] [Indexed: 06/07/2024] Open
Abstract
Introduction Guanylate cyclase C (GC-C) has been detected in the rodent brain in neurons of the cerebral cortex, amygdala, midbrain, hypothalamus, and cerebellum. Methods In this study we determined GC-C protein expression in Brodmann areas (BA) 9, BA10, BA11, and BA32 of the human prefrontal cortex involved in regulation of feeding behavior, as well as in the cerebellar cortex, arcuate nucleus of hypothalamus and substantia nigra in brain samples of human 21 male and 13 female brains by ELISA with postmortem delay < 24 h. Results GC-C was found in all tested brain areas and it was expressed in neurons of the third cortical layer of BA9. The regulation of GC-C expression by feeding was found in male BA11 and BA10-M, where GC-C expression was in negative correlation to the volume of stomach content during autopsy. In female BA11 there was no correlation detected, while in BA10-M there was even positive correlation. This suggests sex differences in GC-C expression regulation in BA11 and BA10-M. The amount of GC-C was higher in female BA9 only when the death occurred shortly after a meal, while expression of GC-C was higher in BA10-O only when the stomach was empty. The expression of GC-C in female hypothalamus was lower when compared to male hypothalamus only when the stomach was full, suggesting possibly lower satiety effects of GC-C agonists in women. Discussion These results point toward the possible role of GC-C in regulation of feeding behavior. Since, this is first study of GC-C regulation and its possible function in prefrontal cortex, to determine exact role of GC-C in different region of prefrontal cortex, especially in humans, need further studies.
Collapse
Affiliation(s)
- Martina Ratko
- Laboratory for Cellular Neurophysiology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Zagreb, Croatia
- Centre of Excellence for Basic, Clinical and Translational Neuroscience, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Vladiana Crljen
- Laboratory for Cellular Neurophysiology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Zagreb, Croatia
- Centre of Excellence for Basic, Clinical and Translational Neuroscience, School of Medicine, University of Zagreb, Zagreb, Croatia
- Department of Physiology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Martina Tkalčić
- Institute for Forensic Medicine, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Anton Mažuranić
- Institute for Forensic Medicine, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Pero Bubalo
- Institute for Forensic Medicine, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Petar Škavić
- Institute for Forensic Medicine, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Ivan Banovac
- Department of Anatomy and Clinical Anatomy, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Aleksandra Dugandžić
- Laboratory for Cellular Neurophysiology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Zagreb, Croatia
- Centre of Excellence for Basic, Clinical and Translational Neuroscience, School of Medicine, University of Zagreb, Zagreb, Croatia
- Department of Physiology, School of Medicine, University of Zagreb, Zagreb, Croatia
| |
Collapse
|
5
|
Nagumalli SK, Salley JT, Carstens JD. Assessment of clinical chemistry and hematological parameters in female Sprague-Dawley rats following a 7-day oral exposure to three different species of Echinacea. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, TOXICOLOGY AND CARCINOGENESIS 2024; 42:154-171. [PMID: 38454746 DOI: 10.1080/26896583.2024.2325851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Echinacea has grown in popularity due to its broad therapeutic benefits. Despite its popularity, comprehensive safety evaluations for three medicinal species are limited. In this study, female Sprague-Dawley rats received oral doses (0, 25, 50, 100, 200 mg/kg/d) of 75% (v/v) ethanol extract from the aerial parts of 9 Echinacea samples of three species - Echinacea purpurea, Echinacea angustifolia, and Echinacea pallida - over a 7-day period. Blood and serum samples, collected twenty-four hours post the final dose, were analyzed for hematology and clinical chemistry parameters. The results revealed varied effects across the tested samples, with many parameters showing no discernible impacts at administered doses. Subtle alterations were observed in parameters such as relative liver weight, alkaline phosphatase (ALP), and platelet count. Parameters like relative spleen weight, alanine transaminase (ALT), glucose, urea, hematocrit, hemoglobin, and RBC count exhibited effects in only one out of the nine samples tested. These findings emphasize the heterogeneity in the effects of Echinacea. While the results suggest that Echinacea samples might be considered relatively safe, potential clinical implications warrant caution and underscore the importance of extended testing. A comprehensive toxicity profile assessment remains paramount to conclusively ascertain the safety of three Echinacea species.
Collapse
Affiliation(s)
- Suresh K Nagumalli
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Joshua T Salley
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Jeffrey D Carstens
- United States Department of Agriculture - Agricultural Research Service (USDA-ARS), North Central Regional Plant Introduction Station (NCRPIS), Ames, IA, USA
| |
Collapse
|
6
|
Shihab EM, Kadhim HM, Shahooth SS. Dapagliflozin mitigates oxidative stress, inflammatory, and histopathological markers of aging in mice. J Med Life 2024; 17:157-163. [PMID: 38813367 PMCID: PMC11131629 DOI: 10.25122/jml-2023-0343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 10/19/2023] [Indexed: 05/31/2024] Open
Abstract
Aging, a complex physiological process affecting all living things, is a major area of research, particularly focused on interventions to slow its progression. This study assessed the antiaging efficacy of dapagliflozin (DAPA) on various aging-related parameters in a mouse model artificially induced to age. Forty male Swiss albino mice were randomly divided into four groups of ten animals each. The control group (Group I) received normal saline. The aging model group (Group II) was administered D-galactose orally at 500mg/kg to induce aging. Following the aging induction, the positive control group received Vitamin C supplementation (Group III), while the DAPA group (Group IV) was treated with dapagliflozin. The inflammatory mediators (TNF-α and IL-1β) showed similar patterns of change. No statistically significant difference was observed between groups III and IV. Both groups had significantly lower values compared to GII, while it was significantly higher compared to GI. Glutathione peroxidase (GSH-Px) showed no statistically significant difference between groups GIII and GIV, but it was higher in GIII compared to GII and significantly lower in GIII compared to GI. The study demonstrated that dapagliflozin exerts a beneficial impact on many indicators of aging in mice. The intervention resulted in a reduction in hypertrophy in cardiomyocytes, an enhancement in skin vitality, a decrease in the presence of inflammatory mediators, and an improvement in the efficacy of antioxidants.
Collapse
Key Words
- AGEs, Advanced Glycation End Products
- CVD, Cardiovascular Disease
- Ca2+, Calcium
- Col-I, Collagen I
- Col-III, Collagen III
- DAPA, Dapagliflozin
- Dapagliflozin
- GSH-Px, Glutathione Peroxidase
- H&E, Hematoxylin and Eosin Stain
- HPF, High Power Fields
- IL-1β, Interleukin-1 Beta
- IP, Intraperitoneally
- MDA, Malondialdehyde
- ROS, Reactive Oxygen Species
- SD, Standard Deviation
- SGLT2, Sodium-Glucose Cotransporter-2
- SGLT2i, Sodium-Glucose Cotransporter 2 Inhibitors
- TNF-α, Tumor Necrosis Factor-Alpha
- aging
- heart
- inflammation
- oxidative stress
- skin
Collapse
Affiliation(s)
- Elaf Mahmood Shihab
- Department of Pharmacology, College of Pharmacy, Al-Esraa University, Baghdad, Iraq
| | - Haitham Mahmood Kadhim
- Department of Clinical Pharmacy, College of Pharmacy, Al-Nahrain University, Baghdad, Iraq
| | - Samer Salim Shahooth
- Department of Pharmacology, College of Health and Medical Technology, Uruk University, Baghdad, Iraq
| |
Collapse
|
7
|
Yao R, Cools A, van Hees HMJ, Chiers K, Mebratu AT, Aluwé M, Maes D, Janssens GPJ. Getting clues from nature: the impact of grass hay on suckling piglets' gastrointestinal growth and colonic microbiota. Front Cell Infect Microbiol 2024; 13:1341147. [PMID: 38268791 PMCID: PMC10806113 DOI: 10.3389/fcimb.2023.1341147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 12/15/2023] [Indexed: 01/26/2024] Open
Abstract
Introduction The effect of dietary fiber on pig production has been extensively evaluated. Inspired by observations of the diet of wild, young piglets, this study aimed to examine the possibility of feeding grass hay to suckling piglets besides concentrated creep feed. Methods The sow-nursed piglets in this study were divided into two groups based on balanced sow parities. The control group (CON, n = 7 sows) only received a regular, concentrated creep feed, while the treatment piglets (GH, n = 8 sows) were also provided with chopped grass hay from 2 days of age until weaning (28 days). At weaning, one piglet with a median weight was selected from each litter for post-mortem evaluation. Subsequently, six pigs around median weight per sow were grouped into nursery pens and monitored for their feed intake and body weight gain until 9 weeks of age. Results and discussion Piglets in GH consumed, on average, 57 g of grass hay per piglet during the entire lactation period. The emptied weight of the small and large intestine was significantly greater in GH (280 vs. 228 g, 88.8 vs. 79.3 g, respectively, p < 0.05), and the length of the large intestine was stimulated by the grass hay (164 vs. 150 cm, p < 0.05). Morphologically, the villus height in the jejunum was higher in GH (p < 0.05). In the large intestine, the crypt depth of the mid-colon was lower in GH. Moreover, the short-chain fatty acid (SCFA) concentrations in the cecum were increased in GH compared to CON (1,179 vs. 948 µmol/g dry matter, p < 0.05), whereas in the colon, SCFA concentrations were lower in CON (341 vs. 278 µmol/g dry matter, p < 0.05). There was no major impact of grass hay inclusion on the colonic microbiota composition. Only a trend was observed for a lower inverse of the classical Simpson (InvSimpon) index and a higher abundance of Lactobacillus genera in GH. After weaning, no significant differences in feed intake and body weight gain were observed. In conclusion, supplementing the grass hay to suckling piglets led to alterations in intestinal morphology, increased SCFA fermentation in proximal sections of large intestine, stimulation of gastrointestinal tract growth, and subtle modifications in colonic microbiota.
Collapse
Affiliation(s)
- Renjie Yao
- Department of Veterinary and Biosciences, Ghent University, Merelbeke, Belgium
- Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, Merelbeke, Belgium
| | - An Cools
- Department of Veterinary and Biosciences, Ghent University, Merelbeke, Belgium
| | - Hubèrt M. J. van Hees
- Department of Veterinary and Biosciences, Ghent University, Merelbeke, Belgium
- Trouw Nutrition Research & Development, Amersfoort, Netherlands
| | - Koen Chiers
- Department of Pathology, Ghent University, Merelbeke, Belgium
| | - Awot Teklu Mebratu
- Department of Veterinary and Biosciences, Ghent University, Merelbeke, Belgium
| | - Marijke Aluwé
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Melle, Belgium
| | - Dominiek Maes
- Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, Merelbeke, Belgium
| | | |
Collapse
|
8
|
Pakula H, Omar M, Carelli R, Pederzoli F, Fanelli GN, Pannellini T, Socciarelli F, Van Emmenis L, Rodrigues S, Fidalgo-Ribeiro C, Nuzzo PV, Brady NJ, Dinalankara W, Jere M, Valencia I, Saladino C, Stone J, Unkenholz C, Garner R, Alexanderani MK, Khani F, de Almeida FN, Abate-Shen C, Greenblatt MB, Rickman DS, Barbieri CE, Robinson BD, Marchionni L, Loda M. Distinct mesenchymal cell states mediate prostate cancer progression. Nat Commun 2024; 15:363. [PMID: 38191471 PMCID: PMC10774315 DOI: 10.1038/s41467-023-44210-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 12/04/2023] [Indexed: 01/10/2024] Open
Abstract
In the complex tumor microenvironment (TME), mesenchymal cells are key players, yet their specific roles in prostate cancer (PCa) progression remain to be fully deciphered. This study employs single-cell RNA sequencing to delineate molecular changes in tumor stroma that influence PCa progression and metastasis. Analyzing mesenchymal cells from four genetically engineered mouse models (GEMMs) and correlating these findings with human tumors, we identify eight stromal cell populations with distinct transcriptional identities consistent across both species. Notably, stromal signatures in advanced mouse disease reflect those in human bone metastases, highlighting periostin's role in invasion and differentiation. From these insights, we derive a gene signature that predicts metastatic progression in localized disease beyond traditional Gleason scores. Our results illuminate the critical influence of stromal dynamics on PCa progression, suggesting new prognostic tools and therapeutic targets.
Collapse
Affiliation(s)
- Hubert Pakula
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Mohamed Omar
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, Belfer Research Building, 413 East 69th Street, New York, NY, 10021, USA
| | - Ryan Carelli
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Filippo Pederzoli
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Giuseppe Nicolò Fanelli
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
- Department of Laboratory Medicine, Pisa University Hospital, Division of Pathology, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, 56126, Italy
| | - Tania Pannellini
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Fabio Socciarelli
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Lucie Van Emmenis
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Silvia Rodrigues
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Caroline Fidalgo-Ribeiro
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Pier Vitale Nuzzo
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Nicholas J Brady
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Wikum Dinalankara
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Madhavi Jere
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Itzel Valencia
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Christopher Saladino
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Jason Stone
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Caitlin Unkenholz
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Richard Garner
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Mohammad K Alexanderani
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Francesca Khani
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Francisca Nunes de Almeida
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Cory Abate-Shen
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Department of Molecular Pharmacology and Therapeutics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Department of Urology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Matthew B Greenblatt
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - David S Rickman
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Christopher E Barbieri
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, Belfer Research Building, 413 East 69th Street, New York, NY, 10021, USA
- Department of Urology, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Brian D Robinson
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, Belfer Research Building, 413 East 69th Street, New York, NY, 10021, USA
- Department of Urology, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Luigi Marchionni
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Massimo Loda
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA.
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, Belfer Research Building, 413 East 69th Street, New York, NY, 10021, USA.
- Department of Oncologic Pathology, Dana-Farber Cancer Institute and Harvard Medical School, 450 Brookline Ave, Boston, MA, 02215, USA.
- University of Oxford, Nuffield Department of Surgical Sciences, Oxford, UK.
| |
Collapse
|
9
|
Yong-Mendoza S, Fonseca-Pérez MS, Villavicencio-Carrisoza O, Rivera-Gutiérrez S, Helguera-Repetto AC. Infection of Fetal Membranes with Mycobacterium tuberculosis and Tissue Processing to Isolate RNA for Expression Analysis. Methods Mol Biol 2024; 2781:179-187. [PMID: 38502454 DOI: 10.1007/978-1-0716-3746-3_17] [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] [Indexed: 03/21/2024]
Abstract
This chapter outlines the methodology employed to infect the chorionic and amniotic membranes with Mycobacterium tuberculosis during pregnancy. Particularly, congenital tuberculosis, a rare and serious condition associated with cases in neonates and reactivation of latent tuberculosis in pregnant mothers, is interesting to study. Understanding the mechanisms of infection and the response of fetal membranes is crucial for developing effective treatments in these cases, which will promote better neonatal and maternal health in situations of tuberculosis during pregnancy. Establishing a standardized infection model in the chorioamniotic membranes is imperative, followed by a treatment protocol for isolating both cellular and mycobacterial RNA. This will enable the expression analysis during the maternal-fetal interface interaction with M. tuberculosis. The proposed methodology might be invaluable for qRT-PCR, microarrays, and sequencing research.
Collapse
Affiliation(s)
- Samantha Yong-Mendoza
- Department of Immunobiochemistry, Instituto Nacional de Perinatologia Isidro Espinosa de los Reyes, Mexico City, Mexico
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Mónica Selena Fonseca-Pérez
- Department of Immunobiochemistry, Instituto Nacional de Perinatologia Isidro Espinosa de los Reyes, Mexico City, Mexico
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Oscar Villavicencio-Carrisoza
- Department of Immunobiochemistry, Instituto Nacional de Perinatologia Isidro Espinosa de los Reyes, Mexico City, Mexico
| | - Sandra Rivera-Gutiérrez
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Addy Cecilia Helguera-Repetto
- Department of Immunobiochemistry, Instituto Nacional de Perinatologia Isidro Espinosa de los Reyes, Mexico City, Mexico.
| |
Collapse
|
10
|
Darville LNF, Lockhart JH, Putty Reddy S, Fang B, Izumi V, Boyle TA, Haura EB, Flores ER, Koomen JM. A Fast-Tracking Sample Preparation Protocol for Proteomics of Formalin-Fixed Paraffin-Embedded Tumor Tissues. Methods Mol Biol 2024; 2823:193-223. [PMID: 39052222 DOI: 10.1007/978-1-0716-3922-1_13] [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] [Indexed: 07/27/2024]
Abstract
Archived tumor specimens are routinely preserved by formalin fixation and paraffin embedding. Despite the conventional wisdom that proteomics might be ineffective due to the cross-linking and pre-analytical variables, these samples have utility for both discovery and targeted proteomics. Building on this capability, proteomics approaches can be used to maximize our understanding of cancer biology and clinical relevance by studying preserved tumor tissues annotated with the patients' medical histories. Proteomics of formalin-fixed paraffin-embedded (FFPE) tissues also integrates with histological evaluation and molecular pathology strategies, so that additional collection of research biopsies or resected tumor aliquots is not needed. The acquisition of data from the same tumor sample also overcomes concerns about biological variation between samples due to intratumoral heterogeneity. However, the protein extraction and proteomics sample preparation from FFPE samples can be onerous, particularly for small (i.e., limited or precious) samples. Therefore, we provide a protocol for a recently introduced kit-based EasyPep method with benchmarking against a modified version of the well-established filter-aided sample preparation strategy using laser-capture microdissected lung adenocarcinoma tissues from a genetically engineered mouse model. This model system allows control over the tumor preparation and pre-analytical variables while also supporting the development of methods for spatial proteomics to examine intratumoral heterogeneity. Data are posted in ProteomeXchange (PXD045879).
Collapse
Affiliation(s)
| | | | | | - Bin Fang
- H. Lee Moffitt Cancer Center, Tampa, FL, USA
| | | | | | | | | | - John M Koomen
- H. Lee Moffitt Cancer Center, Tampa, FL, USA.
- Molecular Oncology/Pathology, Moffitt Cancer Center, Tampa, FL, USA.
| |
Collapse
|
11
|
Carlosama YH, Acosta CP, Sierra CH, Rosero CY, Bolaños HJ. The Operative Link on Gastritis Assessment (OLGA) system as a marker for gastric cancer and dysplasia in a Colombian population at risk: A multicenter study. BIOMEDICA : REVISTA DEL INSTITUTO NACIONAL DE SALUD 2023; 43:30-40. [PMID: 38207154 PMCID: PMC10916539 DOI: 10.7705/biomedica.6995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 09/05/2023] [Indexed: 01/13/2024]
Abstract
Introduction. The OLGA system has been proved to be useful in Asia and Europe as a risk marker of gastric cancer. However, its usefulness in high-risk populations in Colombia is still unknown. Objective. To assess potential associations between the OLGA staging system and an increased risk of gastric cancer and dysplasia in a high-risk Colombian population and to establish diagnostic capacity of the scale to assess the risk. Materials and methods. We carried out a multicenter study including patients with cancer and dysplasia (cases) and patients with atrophy and intestinal metaplasia (controls). A total of 506 patients were recruited from three centers in an area with a high risk population in Colombia. The endoscopic and histopathologic studies were evaluated according to the Sydney system and the OLGA staging system proposed by Rugge. The effect of each variable on the disease (gastric cancer and dysplasia) was evaluated using bivariate and multivariate models. Statistical significance was set considering a p value inferior to 0.05. Results. Advanced stages of the OLGA system (III-IV) were associated with a higher risk of dysplasia and gastric cancer (adjusted OR = 8.71; CI95% = 5.09-14.9; p=0.001), sensitivity=54.9%, specificity=89.3% and positive likelihood ratio=5.17. Conclusions. The OLGA staging system is a risk marker for gastric cancer and dysplasia in the studied population. We recommend its implementation to improve the timely diagnosis and follow-up of patients with the highest cancer risk.
Collapse
Affiliation(s)
- Yeison Harvey Carlosama
- Grupo de Biología Molecular de la Salud, Universidad Autónoma de Manizales, Manizales, Colombia; Grupo Interdisciplinario de Investigación en Salud y Enfermedad, Universidad Cooperativa de Colombia, Pasto, Colombia.
| | | | - Carlos Hernán Sierra
- Grupo de Investigación en Genética Humana y Aplicada, Universidad del Cauca, Popayán, Colombia.
| | - Carol Yovanna Rosero
- Grupo Interdisciplinario de Investigación en Salud y Enfermedad, Universidad Cooperativa de Colombia, Pasto, Colombia.
| | - Harold Jofre Bolaños
- Grupo de Investigación en Genética Humana y Aplicada, Universidad del Cauca, Popayán, Colombia.
| |
Collapse
|
12
|
Kościelak A, Koziara Z, Maria AP, Płatek R, Bartoszek A. Microscopic Imaging to Visualize the Distribution of Dietary Nucleic Acids in Food Products of Various Origins. Foods 2023; 12:3942. [PMID: 37959061 PMCID: PMC10650480 DOI: 10.3390/foods12213942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/20/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Dietary nucleic acids (dietNAs) are being increasingly recognized as important food components with nutritional value. However, the precise dietary recommendations for dietNAs are limited, because established methods for determining the quantity and nutritional role of dietNAs are still lacking. One of the tools to narrow this gap could be microscopic imaging, as a convenient approach to visualize the abundance and distribution of dietNAs in food products. With the aid of appropriate bioinformatic elaboration, such images may in future enable the direct semiquantitative estimation of these macromolecules in food products. In the presented study, two methods of preparing microscopic sections and staining them with DNA-specific fluorochromes were used for microscopic imaging of dietNAs in food products of plant and animal origin. Procedures for preparing formalin-fixed paraffin-embedded sections and cryosections were compared in terms of their usefulness for routine food analysis. Both methods turned out equally suitable for visualizing dietNA distribution in animal and plant products. However, the use of cryosections allowed a significantly shorter analysis time and reduced the consumption of organic solvents. Both of these advantages make the cryosection method preferable while establishing a dedicated methodology for routine assessment of dietNAs in the food industry.
Collapse
Affiliation(s)
- Anna Kościelak
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdansk, Poland; (A.K.); (Z.K.); (A.P.M.)
| | - Zuzanna Koziara
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdansk, Poland; (A.K.); (Z.K.); (A.P.M.)
| | - Ana Pons Maria
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdansk, Poland; (A.K.); (Z.K.); (A.P.M.)
| | - Rafał Płatek
- Laboratory for Regenerative Biotechnology, Department of Molecular Biotechnology and Microbiology, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdansk, Poland;
| | - Agnieszka Bartoszek
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdansk, Poland; (A.K.); (Z.K.); (A.P.M.)
| |
Collapse
|
13
|
Meier Bürgisser G, Heuberger DM, Giovanoli P, Calcagni M, Buschmann J. Delineation of the healthy rabbit tonsil by immunohistochemistry - A short communication. Acta Histochem 2023; 125:152098. [PMID: 37804548 DOI: 10.1016/j.acthis.2023.152098] [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: 06/27/2023] [Revised: 09/27/2023] [Accepted: 09/30/2023] [Indexed: 10/09/2023]
Abstract
Situated in the oral cavity, the rabbit palatine tonsils are part of the mucosal immune system and help to defend the body against foreign pathogens. Expressed as two oval protrusions in the wall of the oropharynx, the rabbit palatine tonsils are characterized by excretory ducts and trabeculae. We here compare paraffin embedded and cryosections of the healthy rabbit tonsils. This analysis centers on evaluating the differential outcomes resulting from the application of these fixation methodologies in conjunction with immunohistochemical assays targeting collagen I, collagen III, fibronectin, α-smooth muscle actin (α-SMA), and ki67. Subsequent recommendations are provided based on our findings. Furthermore, we demonstrate the advantage of an antigen retrieval step in immunohistochemical labeling of paraffin sections. Basic classical histological stainings as HE, GT and elastin were also performed. Comparison of different stainings and labelings was furthermore performed in serial sections, showing that adjacent to the excretory ducts, the tonsillar tissue was particularly composed of collagen I and fibronectin, while the vessel walls were predominantly α-SMA positive. Moreover, PAR-2 immunohistochemical staining was performed, where a small fraction of the cells found in the tonsillar connective tissue were PAR-2 positive (probably a subpopulation of mast cells), as well as the lumen of some excretory ducts and trabeculae. Collagen III on the other hand was only weakly expressed in the tonsils. Proliferating ki67 positive cells were rare. This endeavor serves to furnish the scientific community with reference imagery pertinent to researchers opting for the rabbit palatine tonsil model. The diversity of staining techniques employed herein establishes a foundational repository of images, primed for comparative analysis against pathological conditions. Furthermore, these images hold the potential to illustrate inter-species variations. For instance, they can be juxtaposed against murine or rodent tonsils, or even offer insights into the human context.
Collapse
Affiliation(s)
- Gabriella Meier Bürgisser
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Dorothea M Heuberger
- Institute of Intensive Care Medicine, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Pietro Giovanoli
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Maurizio Calcagni
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Johanna Buschmann
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland.
| |
Collapse
|
14
|
Dupont ME, Jacobsen SB, Christiansen SNN, Tfelt-Hansen J, Smerup MH, Andersen JD, Morling N. Fresh and frozen cardiac tissue are comparable in DNA methylation array β-values, but formalin-fixed, paraffin-embedded tissue may overestimate DNA methylation levels. Sci Rep 2023; 13:16381. [PMID: 37773256 PMCID: PMC10541404 DOI: 10.1038/s41598-023-43788-2] [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: 08/09/2023] [Accepted: 09/28/2023] [Indexed: 10/01/2023] Open
Abstract
Untreated fresh cardiac tissue is the optimal tissue material for investigating DNA methylation patterns of cardiac biology and diseases. However, fresh tissue is difficult to obtain. Therefore, tissue stored as frozen or formalin-fixed, paraffin-embedded (FFPE) is widely used for DNA methylation studies. It is unknown whether storage conditions alter the DNA methylation in cardiac tissue. In this study, we compared the DNA methylation patterns of fresh, frozen, and FFPE cardiac tissue to investigate if the storage method affected the DNA methylation results. We used the Infinium MethylationEPIC assay to obtain genome-wide methylation levels in fresh, frozen, and FFPE tissues from nine individuals. We found that the DNA methylation levels of 21.4% of the examined CpG sites were overestimated in the FFPE samples compared to that of fresh and frozen tissue, whereas 5.7% were underestimated. Duplicate analyses of the DNA methylation patterns showed high reproducibility (precision) for frozen and FFPE tissues. In conclusion, we found that frozen and FFPE tissues gave reproducible DNA methylation results and that frozen and fresh tissues gave similar results.
Collapse
Affiliation(s)
- Mikkel Eriksen Dupont
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Stine Bøttcher Jacobsen
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Steffan Noe Niikanoff Christiansen
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Jacob Tfelt-Hansen
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Morten Holdgaard Smerup
- Department of Cardiothoracic Surgery, Rigshospitalet Copenhagen University Hospital, Copenhagen, Denmark
| | - Jeppe Dyrberg Andersen
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Niels Morling
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
15
|
Hoang TV, Vo KTX, Rahman MM, Zhong R, Lee C, Ketudat Cairns JR, Ye ZH, Jeon JS. SPOTTED-LEAF7 targets the gene encoding β-galactosidase9, which functions in rice growth and stress responses. PLANT PHYSIOLOGY 2023; 193:1109-1125. [PMID: 37341542 PMCID: PMC10517187 DOI: 10.1093/plphys/kiad359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/22/2023]
Abstract
β-Galactosidases (Bgals) remove terminal β-D-galactosyl residues from the nonreducing ends of β-D-galactosidases and oligosaccharides. Bgals are present in bacteria, fungi, animals, and plants and have various functions. Despite the many studies on the evolution of BGALs in plants, their functions remain obscure. Here, we identified rice (Oryza sativa) β-galactosidase9 (OsBGAL9) as a direct target of the heat stress-induced transcription factor SPOTTED-LEAF7 (OsSPL7), as demonstrated by protoplast transactivation analysis and yeast 1-hybrid and electrophoretic mobility shift assays. Knockout plants for OsBGAL9 (Osbgal9) showed short stature and growth retardation. Histochemical β-glucuronidase (GUS) analysis of transgenic lines harboring an OsBGAL9pro:GUS reporter construct revealed that OsBGAL9 is mainly expressed in internodes at the mature stage. OsBGAL9 expression was barely detectable in seedlings under normal conditions but increased in response to biotic and abiotic stresses. Ectopic expression of OsBGAL9 enhanced resistance to the rice pathogens Magnaporthe oryzae and Xanthomonas oryzae pv. oryzae, as well as tolerance to cold and heat stress, while Osbgal9 mutant plants showed the opposite phenotypes. OsBGAL9 localized to the cell wall, suggesting that OsBGAL9 and its plant putative orthologs likely evolved functions distinct from those of its closely related animal enzymes. Enzyme activity assays and analysis of the cell wall composition of OsBGAL9 overexpression and mutant plants indicated that OsBGAL9 has activity toward galactose residues of arabinogalactan proteins (AGPs). Our study clearly demonstrates a role for a member of the BGAL family in AGP processing during plant development and stress responses.
Collapse
Affiliation(s)
- Trung Viet Hoang
- Graduate School of Green-Bio Science, Kyung Hee University, Yongin 17104, Korea
| | - Kieu Thi Xuan Vo
- Graduate School of Green-Bio Science, Kyung Hee University, Yongin 17104, Korea
| | - Md Mizanor Rahman
- Graduate School of Green-Bio Science, Kyung Hee University, Yongin 17104, Korea
| | - Ruiqin Zhong
- Department of Plant Biology, University of Georgia, Athens, GA 30602, USA
| | - Chanhui Lee
- Graduate School of Green-Bio Science, Kyung Hee University, Yongin 17104, Korea
| | - James R Ketudat Cairns
- School of Chemistry, Institute of Science, and Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Zheng-Hua Ye
- Department of Plant Biology, University of Georgia, Athens, GA 30602, USA
| | - Jong-Seong Jeon
- Graduate School of Green-Bio Science, Kyung Hee University, Yongin 17104, Korea
| |
Collapse
|
16
|
Lee D, Kim S, Koo Y, Chae Y, Wang J, Kim S, Yun T, Yang MP, Kang BT, Kim H. Expression of vitamin D receptor, CYP24A1, and CYP27B1 in normal and inflamed canine pancreases. Front Vet Sci 2023; 10:1265203. [PMID: 37808100 PMCID: PMC10551448 DOI: 10.3389/fvets.2023.1265203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 09/05/2023] [Indexed: 10/10/2023] Open
Abstract
Vitamin D plays a role in anti-inflammatory processes, and the alteration of its metabolism is associated with the inflammatory processes of pancreatitis. This study was performed to evaluate the expression of the vitamin D receptor (VDR) and the two major enzymes that regulate vitamin D metabolism, 1α-hydroxylase (CYP27B1) and 24-hydroxylase (CYP24A1), in the canine pancreas and to compare their degrees of immunoreactivity between normal and inflamed pancreases. Five normal and inflamed pancreatic tissues each were obtained from six dogs. The expression of VDR, CYP24A1, and CYP27B1 were determined immunohistochemically, and the degree of immunostaining was assessed semiquantitatively. The VDR was expressed in the ducts, acini, and islets of Langerhans of normal pancreases and in the ducts and acini of inflamed ones. There was a significant difference in the immunoreactivity score for VDR in the islets of Langerhans between normal (median, 3 [interquartile range, 2-7.5] score) and inflamed pancreatic tissues (0 [0-0.5] score, p = 0.03). CYP24A1 was expressed in the ducts and islets of Langerhans in both normal and inflamed pancreases, whereas CYP27B1 was expressed in the ducts and acini in only some normal and inflamed pancreatic tissues. This study showed that VDR expression decreased in inflamed pancreases and demonstrated CYP24A1 and CYP27B1 expression in the canine pancreas for the first time. These findings indicate that the pancreas could regulate the metabolism and biological activity of vitamin D and suggest that a decrease in these might be related to the pathophysiology of pancreatitis.
Collapse
Affiliation(s)
- Dohee Lee
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Sanggu Kim
- Laboratory of Veterinary Pathology and Platelet Signaling, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Yoonhoi Koo
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Yeon Chae
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Juwon Wang
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Soochong Kim
- Laboratory of Veterinary Pathology and Platelet Signaling, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Taesik Yun
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Mhan-Pyo Yang
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Byeong-Teck Kang
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Hakhyun Kim
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| |
Collapse
|
17
|
Ramadan AG, Abdel-Rehim WM, El-Tahan RA, Elblehi SS, Kamel MA, Shaker SA. Maternal and paternal obesity differentially reprogram the ovarian mitochondrial biogenesis of F1 female rats. Sci Rep 2023; 13:15480. [PMID: 37726284 PMCID: PMC10509203 DOI: 10.1038/s41598-023-42468-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/11/2023] [Indexed: 09/21/2023] Open
Abstract
Obesity has harmful consequences on reproductive outcomes and the rapid increase in obesity is assumed to be influenced by epigenetics and trans-generation effects. Our study aimed to explore the effect of maternal and/or paternal obesity on the ovarian tissues of the first-generation female offspring in rats. The study was conducted on 40 adult Wistar albino rats (20 males and 20 females). Obesity was induced by feeding them an obesogenic diet for 3 months. The pregnancy was induced in the females by mating with males in four combinations: healthy mother with healthy father (control parents, CP), healthy mother with obese fathers (OF), obese mothers with healthy father (OM), and obese mother with obese father (obese parents, OP). After delivery, the female offspring at two months were sacrificed, and the blood and ovarian tissues were collected to assess the studied parameters. Our result showed differential impacts of maternal and paternal obesity on the ovarian health of the female offspring. The female offspring of obese OM or OP showed early signs of obesity. These metabolic abnormalities were associated with signs of ovarian lesions, impaired folliculogenesis, and decreased oocyte quality and also showed significant alterations in mitochondrial biogenesis, redox status, inflammation, and microRNAs expression (miR-149 and miR-494). In conclusion, altered ovarian expression of microRNAs and associated impaired mitochondrial biogenesis pathways may be the root causes for the observed intergeneration transmission of the obesogenic phenotype.
Collapse
Affiliation(s)
- Amina G Ramadan
- Department of Biochemistry, Medical Research Institute, Alexandria University, 165 El-Horreya Avenue, EL-Hadara, POB: 21561, Alexandria, Egypt.
| | - Wafaa M Abdel-Rehim
- Department of Biochemistry, Medical Research Institute, Alexandria University, 165 El-Horreya Avenue, EL-Hadara, POB: 21561, Alexandria, Egypt
| | - Rasha A El-Tahan
- Department of Biochemistry, Medical Research Institute, Alexandria University, 165 El-Horreya Avenue, EL-Hadara, POB: 21561, Alexandria, Egypt
| | - Samar S Elblehi
- Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Maher A Kamel
- Department of Biochemistry, Medical Research Institute, Alexandria University, 165 El-Horreya Avenue, EL-Hadara, POB: 21561, Alexandria, Egypt
| | - Sara A Shaker
- Department of Biochemistry, Medical Research Institute, Alexandria University, 165 El-Horreya Avenue, EL-Hadara, POB: 21561, Alexandria, Egypt.
| |
Collapse
|
18
|
Udomkarnjananun S, Iampenkhae K. Pathological Approach to Kidney Allograft Infection. Biomedicines 2023; 11:1902. [PMID: 37509541 PMCID: PMC10377023 DOI: 10.3390/biomedicines11071902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/30/2023] Open
Abstract
Infectious agents can pose a significant challenge in kidney transplantation, as they have the potential to cause direct infections in the transplanted kidney. These infections can lead to a decline in kidney function and reduce the longevity of the transplanted kidney. Common post-transplant allograft infections include bacterial pyelonephritis and the BK virus infection, while adenovirus, JC virus, and cytomegalovirus are less frequent but can also lead to significant allograft dysfunctions. The histopathological features of these infections are characterized by the infiltration of inflammatory cells in the kidney interstitial area and the presence of viral nuclear inclusions or cytopathic changes in the renal tubular epithelial cells. The confirmation of causative organisms can be achieved by immunohistochemical staining or the visualization of viral particles using electron microscopic examination. However, these methods typically require a longer turnaround time and are not readily available in developing countries, unlike standard hematoxylin-eosin staining. Notably, the differential diagnosis of interstitial inflammation in kidney allografts almost always includes T cell-mediated rejection, which has a different treatment approach than allograft infections. The aim of this review was to prompt clinicians to identify diverse pathological alterations as observed in kidney allograft biopsies, thereby facilitating further investigations and the management of suspected kidney allograft infections.
Collapse
Affiliation(s)
- Suwasin Udomkarnjananun
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn Univeristy and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok 10330, Thailand
- Excellence Center for Organ Transplantation (ECOT), King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok 10330, Thailand
- Renal Immunology and Transplantation Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence in Translational Research in Inflammation and Immunology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kroonpong Iampenkhae
- Department of Pathology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok 10330, Thailand
| |
Collapse
|
19
|
Dinneen K, Arora R. Molecular Testing in Ovarian Tumours: Challenges from the Pathologist's Perspective. Diagnostics (Basel) 2023; 13:2072. [PMID: 37370967 DOI: 10.3390/diagnostics13122072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 05/29/2023] [Accepted: 06/03/2023] [Indexed: 06/29/2023] Open
Abstract
The use of molecular testing to direct diagnosis and treatment options in ovarian tumours has rapidly expanded in recent years, in particular with regard to the recommendation for routine homologous recombination deficiency (HRD) testing in all patients with high-grade ovarian epithelial tumours. The implications of this increased level of testing upon the pathologist is significant in terms of increased workload, the provision of adequate tumour samples for molecular testing, and the interpretation of complex molecular pathology reports. In order to optimise the quality of reports generated, it is important to establish clear pathways of communication on both a local and national level between clinicians, pathology lab staff, and medical scientists. On a national level, in the United Kingdom, Genomic Laboratory Hubs (GLHs) have been established to provide a uniform high-quality molecular diagnostics service to all patients with ovarian tumours within the National Health services in the country. On a local level, there are a number of small steps that can be taken to improve the quality of tissues available for testing and to streamline the processes involved in generating requests for molecular testing. This article discusses these factors from the perspective of the clinical histopathologist.
Collapse
Affiliation(s)
- Kate Dinneen
- Department of Cellular Pathology, University College London NHS Trust, 60 Whitfield Street, London W1T 4E, UK
| | - Rupali Arora
- Department of Cellular Pathology, University College London NHS Trust, 60 Whitfield Street, London W1T 4E, UK
| |
Collapse
|
20
|
Pakula H, Omar M, Carelli R, Pederzoli F, Fanelli GN, Pannellini T, Van Emmenis L, Rodrigues S, Fidalgo-Ribeiro C, Nuzzo PV, Brady NJ, Jere M, Unkenholz C, Alexanderani MK, Khani F, de Almeida FN, Abate-Shen C, Greenblatt MB, Rickman DS, Barbieri CE, Robinson BD, Marchionni L, Loda M. Distinct mesenchymal cell states mediate prostate cancer progression. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.29.534769. [PMID: 37034687 PMCID: PMC10081210 DOI: 10.1101/2023.03.29.534769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Alterations in tumor stroma influence prostate cancer progression and metastatic potential. However, the molecular underpinnings of this stromal-epithelial crosstalk are largely unknown. Here, we compare mesenchymal cells from four genetically engineered mouse models (GEMMs) of prostate cancer representing different stages of the disease to their wild-type (WT) counterparts by single-cell RNA sequencing (scRNA-seq) and, ultimately, to human tumors with comparable genotypes. We identified 8 transcriptionally and functionally distinct stromal populations responsible for common and GEMM-specific transcriptional programs. We show that stromal responses are conserved in mouse models and human prostate cancers with the same genomic alterations. We noted striking similarities between the transcriptional profiles of the stroma of murine models of advanced disease and those of of human prostate cancer bone metastases. These profiles were then used to build a robust gene signature that can predict metastatic progression in prostate cancer patients with localized disease and is also associated with progression-free survival independent of Gleason score. Taken together, this offers new evidence that stromal microenvironment mediates prostate cancer progression, further identifying tissue-based biomarkers and potential therapeutic targets of aggressive and metastatic disease.
Collapse
Affiliation(s)
- Hubert Pakula
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Mohamed Omar
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Ryan Carelli
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Filippo Pederzoli
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Giuseppe Nicolò Fanelli
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
- Department of Laboratory Medicine, Pisa University Hospital, Division of Pathology, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa 56126, Italy
| | - Tania Pannellini
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Lucie Van Emmenis
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Silvia Rodrigues
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Caroline Fidalgo-Ribeiro
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Pier V. Nuzzo
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Nicholas J. Brady
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Madhavi Jere
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Caitlin Unkenholz
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Mohammad K. Alexanderani
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Francesca Khani
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, Belfer Research Building, 413 East 69th Street, New York, NY 10021, USA
- Department of Urology, Weill Cornell Medicine, New York, NY 10021, USA
| | - Francisca Nunes de Almeida
- Departments of Molecular Pharmacology and Therapeutics, Urology, Medicine, Pathology & Cell Biology and Systems Biology, Herbert Irving Comprehensive Cancer Center, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Cory Abate-Shen
- Departments of Molecular Pharmacology and Therapeutics, Urology, Medicine, Pathology & Cell Biology and Systems Biology, Herbert Irving Comprehensive Cancer Center, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Matthew B Greenblatt
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - David S. Rickman
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Christopher E. Barbieri
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, Belfer Research Building, 413 East 69th Street, New York, NY 10021, USA
- Department of Urology, Weill Cornell Medicine, New York, NY 10021, USA
| | - Brian D. Robinson
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, Belfer Research Building, 413 East 69th Street, New York, NY 10021, USA
- Department of Urology, Weill Cornell Medicine, New York, NY 10021, USA
| | - Luigi Marchionni
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Massimo Loda
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10021, USA
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, Belfer Research Building, 413 East 69th Street, New York, NY 10021, USA
- Department of Oncologic Pathology, Dana-Farber Cancer Institute and Harvard Medical School, 450 Brookline Ave, Boston, MA, 02215, USA
| |
Collapse
|
21
|
Yang Z, Ni L, Tian W, Chi H. Screening and Identification of Goat-Milk-Derived Lactic Acid Bacteria with Bacteriocin-like Activity and Probiotic Potentials. Microorganisms 2023; 11:microorganisms11040849. [PMID: 37110274 PMCID: PMC10143788 DOI: 10.3390/microorganisms11040849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 03/29/2023] Open
Abstract
In the current study, we screened 46 isolates of lactic acid bacteria (LAB) derived from goat milk for bacteriocin producers that can inhibit common foodborne pathogens (Staphylococcus aureus, Listeria monocytogenes, and Bacillus cereus). The following three strains that showed antimicrobial activity against all indicators were identified: Enterococcus faecalis DH9003 and DH9012, and Lactococcus lactis DH9011. Their antimicrobial products exhibited typical bacteriocin characteristics, such as heat stability and proteinase nature. The bacteriostatic activity of concentrated bacteriocins produced by these LAB was observed at low concentrations (half-minimum inhibitory concentration [MIC50] and 4MIC50), whereas complete inhibition activity against Listeria monocytogenes was detected at high concentrations (16MIC50) of the two Enterococcus faecalis strains (DH9003 and DH9012). Furthermore, the probiotic potentials of the three strains were investigated and described. The results revealed that none of the strains had hemolytic activity, whereas all: were sensitive to ampicillin (50 mg/mL) and streptomycin sulfate (100 mg/mL); were resistant to bile, artificial simulated intestinal tract, and gastric juice at different pH levels (2.5, 3.0, 3.5); and had β-galactosidase activity. Furthermore, all strains exhibited an auto-aggregating phenotype, with self-aggregation ranging from 30% to 55%. DH9003 and DH9012 co-aggregated well with Listeria monocytogenes and Escherichia coli (52.6% and 63.2%, 68.5% and 57.6%, respectively), whereas DH9011 co-aggregated poorly with Listeria monocytogenes (15.6%) and did not co-aggregate with Escherichia coli. Furthermore, our results showed that all three isolates exhibited strong antibacterial activity, tolerance to bile and simulated gastrointestinal environments, adhesion capability, and safety. Finally, DH9003 was selected and used for gavage in rats. By observing the pathological characteristics of rat intestinal and liver tissue sections, DH9003 showed no harmful effects on the intestine and liver of rats, but rather resulted in a denser and longer intestinal mucosa, as well as improving the intestinal mucosa of rats. Considering their substantial prospective applications, we concluded that these three isolates are potential probiotic candidates.
Collapse
|
22
|
Akhgar A, Sinibaldi D, Zeng L, Farris AB, Cobb J, Battle M, Chain D, Cann JA, Illei GG, Lim SS, White WI. Urinary markers differentially associate with kidney inflammatory activity and chronicity measures in patients with lupus nephritis. Lupus Sci Med 2023; 10:10/1/e000747. [PMID: 36717181 PMCID: PMC9887703 DOI: 10.1136/lupus-2022-000747] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 01/04/2023] [Indexed: 02/01/2023]
Abstract
OBJECTIVE Lupus nephritis (LN) is diagnosed by biopsy, but longitudinal monitoring assessment methods are needed. Here, in this preliminary and hypothesis-generating study, we evaluate the potential for using urine proteomics as a non-invasive method to monitor disease activity and damage. Urinary biomarkers were identified and used to develop two novel algorithms that were used to predict LN activity and chronicity. METHODS Baseline urine samples were collected for four cohorts (healthy donors (HDs, n=18), LN (n=42), SLE (n=17) or non-LN kidney disease biopsy control (n=9)), and over 1 year for patients with LN (n=42). Baseline kidney biopsies were available for the LN (n=46) and biopsy control groups (n=9). High-throughput proteomics platforms were used to identify urinary analytes ≥1.5 SD from HD means, which were subjected to stepwise, univariate and multivariate logistic regression modelling to develop predictive algorithms for National Institutes of Health Activity Index (NIH-AI)/National Institutes of Health Chronicity Index (NIH-CI) scores. Kidney biopsies were analysed for macrophage and neutrophil markers using immunohistochemistry (IHC). RESULTS In total, 112 urine analytes were identified from LN, SLE and biopsy control patients as both quantifiable and overexpressed compared with HDs. Regression analysis identified proteins associated with the NIH-AI (n=30) and NIH-CI (n=26), with four analytes common to both groups, demonstrating a difference in the mechanisms associated with NIH-AI and NIH-CI. Pathway analysis of the NIH-AI and NIH-CI analytes identified granulocyte-associated and macrophage-associated pathways, and the presence of these cells was confirmed by IHC in kidney biopsies. Four markers each for the NIH-AI and NIH-CI were identified and used in the predictive algorithms. The NIH-AI algorithm sensitivity and specificity were both 93% with a false-positive rate (FPR) of 7%. The NIH-CI algorithm sensitivity was 88%, specificity 96% and FPR 4%. The accuracy for both models was 93%. CONCLUSIONS Longitudinal predictions suggested that patients with baseline NIH-AI scores of ≥8 were most sensitive to improvement over 6-12 months. Viable approaches such as this may enable the use of urine samples to monitor LN over time.
Collapse
Affiliation(s)
- Ahmad Akhgar
- Clinical Pharmacology and Safety Sciences R&D, AstraZeneca US, Gaithersburg, Maryland, USA
| | - Dominic Sinibaldi
- Applied Analytics and AI, BioPharmaceuticals R&D, AstraZeneca US, Gaithersburg, Maryland, USA
| | - Lingmin Zeng
- Late Oncology Biometrics, AstraZeneca US, Gaithersburg, Maryland, USA
| | - Alton B Farris
- Department of Pathology and Laboratory Medicine, Emory University Hospital, Atlanta, Georgia, USA
| | - Jason Cobb
- Department of Medicine, Renal Medicine Division, Emory University, Atlanta, Georgia, USA
| | - Monica Battle
- Department of Rheumatology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - David Chain
- Clinical Proteomics, Translational Medicine, Early Oncology, AstraZeneca US, Gaithersburg, Maryland, USA
| | - Jennifer A Cann
- Clinical Pharmacology and Safety Sciences R&D, AstraZeneca US, Gaithersburg, Maryland, USA
| | - Gábor G Illei
- Clinical Development, Viela Bio, Gaithersburg, Maryland, USA
| | - S Sam Lim
- Department of Medicine, Division of Rheumatology, Emory University, Atlanta, Georgia, USA
| | - Wendy I White
- Clinical Pharmacology and Quantitative Pharmacology, Clinical Pharmacology & Safety Sciences, BioPharmaceuticals R&D, AstraZeneca US, Gaithersburg, Maryland, USA
| |
Collapse
|
23
|
Jacobsen SB, Tfelt-Hansen J, Smerup MH, Andersen JD, Morling N. Comparison of whole transcriptome sequencing of fresh, frozen, and formalin-fixed, paraffin-embedded cardiac tissue. PLoS One 2023; 18:e0283159. [PMID: 36989279 PMCID: PMC10058139 DOI: 10.1371/journal.pone.0283159] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 03/02/2023] [Indexed: 03/30/2023] Open
Abstract
The use of fresh tissue for molecular studies is preferred but often impossible. Instead, frozen or formalin-fixed, paraffin-embedded (FFPE) tissues are widely used and constitute valuable resources for retrospective studies. We assessed the utility of cardiac tissue stored in different ways for gene expression analyses by whole transcriptome sequencing of paired fresh, frozen, and FFPE tissues. RNA extracted from FFPE was highly degraded. Sequencing of RNA from FFPE tissues yielded higher proportions of intronic and intergenic reads compared to RNA from fresh and frozen tissues. The global gene expression profiles varied with the storage conditions, particularly mitochondrial and long non-coding RNAs. However, we observed high correlations among protein-coding transcripts (ρ > 0.94) with the various storage conditions. We did not observe any significant storage effect on the allele-specific gene expression. However, FFPE had statistically significantly (p < 0.05) more discordant variant calls compared to fresh and frozen tissue. In conclusion, we found that frozen and FFPE tissues can be used for reliable gene expression analyses, provided that proper quality control is performed and caution regarding the technical variability is withheld.
Collapse
Affiliation(s)
- Stine Bøttcher Jacobsen
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jacob Tfelt-Hansen
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Morten Holdgaard Smerup
- Department of Cardiothoracic Surgery, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jeppe Dyrberg Andersen
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Niels Morling
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
24
|
Prevalence and Genotyping of HPV in Oral Squamous Cell Carcinoma in Northern Brazil. Pathogens 2022; 11:pathogens11101106. [DOI: 10.3390/pathogens11101106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 11/17/2022] Open
Abstract
Highly oncogenic human papillomavirus (HPV) is well known to be associated with and a risk factor for various types of oral carcinomas such as oral squamous cell carcinoma (OSCC). The aim of this study was to evaluate and describe the HPV-induced OSCC prevalence and genotyping in the city of Belém, northern Brazil. This cross-sectional study features 101 participants who attended an oral pathology referral center in a dental college looking for diagnoses of oral lesions (OL). After signing the consent term and meeting the inclusion criteria, all participants went through a sociodemographic and epidemiological questionnaire. Then, OL were collected by excisional or incisional biopsy depending on OL size; after that, OL tissues were preserved in paraffin blocks to histopathological diagnoses. Afterwards, paraffin blocks were divided into benign and malignant/premalignant lesions based on the classification of potentially malignant disorders of the oral and oropharyngeal mucosa. Then, the paraffin blocks had DNA extraction performed by the ReliaPrep FFPE gDNA Miniprep method in order to identify HPV DNA of high oncogenic risk and low oncogenic risk. Then, the viral DNA was amplified and typed using the Inno-Lipa genotyping Extra II method, and the collected data were analyzed by Chi-square and G-tests. In total, 59/101 (58.4%) OL were malignant/premalignant lesions, of which OSCC was the most prevalent with 40/59 (67.7%) and 42/101 (41.6%) benign lesions. The most common area of OL incidence was upper gingiva 46/101 (45.5%). Regarding HPV DNA detection, approximately 27/101 (26.7%) had positive results; of these, 17/59 (28.8%) were malignant/premalignant lesions, and the most prevalent genotypes detected were 16, 18, 52 and 58, while among benign lesions, 10/42 (66.6%) had HPV-positive results, and the most prevalent genotypes detected were 6, 11 and 42. Age range was the only risk factor with a significant association between HPV and OSCC presence (p-value: 0.0004). A correlation between OSCC and oral HPV among analyzed samples could not be demonstrated in our small cohort.
Collapse
|
25
|
Golberg M, Wysiadecki G, Kobos J, Brzeziński P, Polguj M, Clarke E, Barszcz K, Balawender K, Radek M, Żytkowski A. Application of automated immunohistochemistry in anatomical research: A brief review of the method. TRANSLATIONAL RESEARCH IN ANATOMY 2022. [DOI: 10.1016/j.tria.2022.100211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
26
|
In Vivo Evaluation of PCL Vascular Grafts Implanted in Rat Abdominal Aorta. Polymers (Basel) 2022; 14:polym14163313. [PMID: 36015570 PMCID: PMC9412484 DOI: 10.3390/polym14163313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/03/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
Electrospun tissue-engineered grafts made of biodegradable materials have become a perspective search field in terms of vascular replacement, and more research is required to describe their in vivo transformation. This study aimed to give a detailed observation of hemodynamic and structural properties of electrospun, monolayered poly-ε-caprolactone (PCL) grafts in an in vivo experiment using a rat aorta replacement model at 10, 30, 60 and 90 implantation days. It was shown using ultrasound diagnostic and X-ray tomography that PCL grafts maintain patency throughout the entire follow-up period, without stenosis or thrombosis. Vascular compliance, assessed by the resistance index (RI), remains at the stable level from the 10th to the 90th day. A histological study using hematoxylin-eosin (H&E), von Kossa and Russell–Movat pentachrome staining demonstrated the dynamics of tissue response to the implant. By the 10th day, an endothelial monolayer was forming on the graft luminal surface, followed by the gradual growth and compaction of the neointima up to the 90th day. The intense inflammatory cellular reaction observed on the 10th day in the thickness of the scaffold was changed by the fibroblast and myofibroblast penetration by the 30th day. The cellularity maximum was reached on the 60th day, but by the 90th day the cellularity significantly (p = 0.02) decreased. From the 60th day, in some samples, the calcium phosphate depositions were revealed at the scaffold-neointima interface. Scanning electron microscopy showed that the scaffolds retained their fibrillar structure up to the 90th day. Thus, we have shown that the advantages of PCL scaffolds are excellent endothelialization and good surgical outcome. The disadvantages include their slow biodegradation, ineffective cellularization, and risks for mineralization and intimal hyperplasia.
Collapse
|
27
|
Banovac I, Sedmak D, Esclapez M, Petanjek Z. The Distinct Characteristics of Somatostatin Neurons in the Human Brain. Mol Neurobiol 2022; 59:4953-4965. [PMID: 35665897 DOI: 10.1007/s12035-022-02892-6] [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: 02/14/2022] [Accepted: 05/18/2022] [Indexed: 11/26/2022]
Abstract
Somatostatin cells are frequently described as a major population of GABAergic neurons in the cerebral cortex. In this study, we performed a comprehensive analysis of their molecular expression, morphological features, and laminar distribution. We provided a detailed description of somatostatin neurons in the human prefrontal cortex, including their proportion in the total neuron population, laminar distribution, neurotransmitter phenotype, as well as their molecular and morphological characteristics using immunofluorescence and RNAscope in situ hybridization. We found that somatostatin neurons comprise around 7% of neocortical neurons in the human Brodmann areas 9 and 14r, without significant difference between the two regions. Somatostatin cells were NeuN positive and synthesized vesicular GABA transporter and glutamate decarboxylase 1 and 2, confirming their neuronal nature and GABAergic phenotype. Somatostatin cells in the upper cortical layers were small, had a high expression of somatostatin mRNA, a relatively low expression of somatostatin peptide, and co-expressed calbindin. In the lower cortical layers, somatostatin cells were larger with complex somato-dendritic morphology, typically showed a lower expression of somatostatin mRNA and a high expression of somatostatin peptide, and co-expressed neuronal nitric oxide synthase (nNOS) and neuropeptide Y (NPY), but not calbindin. Somatostatin neurons in the white matter co-expressed MAP2. Based on their somato-dendritic morphology, cortical somatostatin neurons could be classified into at least five subtypes. The somatostatin neurons of the human prefrontal cortex show remarkable morphological and molecular complexity, which implies that they have equally complex and distinct functions in the human brain.
Collapse
Affiliation(s)
- Ivan Banovac
- Department of Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, 10000, Zagreb, Croatia
- Croatian Institute for Brain Research and Center of Excellence for Basic, Clinical and Translational Neuroscience, University of Zagreb School of Medicine, 10000, Zagreb, Croatia
| | - Dora Sedmak
- Department of Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, 10000, Zagreb, Croatia.
- Croatian Institute for Brain Research and Center of Excellence for Basic, Clinical and Translational Neuroscience, University of Zagreb School of Medicine, 10000, Zagreb, Croatia.
| | - Monique Esclapez
- INSERM, INS, Institut de Neurosciences des Systèmes, Aix Marseille University, Marseille, France
| | - Zdravko Petanjek
- Department of Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, 10000, Zagreb, Croatia
- Croatian Institute for Brain Research and Center of Excellence for Basic, Clinical and Translational Neuroscience, University of Zagreb School of Medicine, 10000, Zagreb, Croatia
| |
Collapse
|
28
|
Zhang Z, Xie J, Shan N, Wang H, Hu B, Wang J, Zhang H, Ma C. Discovery of the specific inhibitory effect of thiamphenicol on LPS-induced acute lung injury (ALI) in mice through virtual screening and biological evaluation. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
29
|
Value of MRI in assessing back pain after thoracolumbar osteoporotic vertebral compression fractures and discussion on the underlying mechanisms by tissue biopsy. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2022; 31:1147-1157. [PMID: 35038034 DOI: 10.1007/s00586-021-07095-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 11/17/2021] [Accepted: 12/18/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE The specific radiological feature of osteoporotic vertebral compression fractures (OVCFs) is bone marrow oedema (BME) on magnetic resonance imaging (MRI). However, the relationship between BME and back pain (BP) is unclear. We investigated the value of MRI in assessing BP and discussed the relevant mechanisms by tissue biopsy. METHODS One hundred nineteen patients with thoracolumbar OVCFs were included in this study. We divided all patients into two groups: the low-oedema group (BME ≤ 75%) and the high-oedema group (BME > 75%). To reduce the error generated in the acute phase of fracture, we separately analysed patients in phases I (within one month) and II (more than one month). We compared the differences between the groups using the Mann-Whitney U test and investigated the correlations using Spearman's correlation test. RESULTS The degree of BP was significantly correlated with BME (p < 0.001; p < 0.001) and fibrous tissue content (p = 0.006; p = 0.035) in both phases. Further, the fibrous tissue content in the low-oedema group (12.49 ± 7.37%; 15.25 ± 13.28%) was significantly lower than that in the high-oedema group (25.68 ± 20.39%, p = 0.014; 23.92 ± 14.61%, p = 0.022) in both phases. The lamellar bone content was significantly correlated with BP (p = 0.021) in phase II. CONCLUSIONS BME signals on MRI can accurately predict the degree of BP, and the main mechanisms are related to the stimulation of fibrous tissue.
Collapse
|
30
|
Di Candia D, Boracchi M, Gentile G, Giordano G, Zoja R. Histological paraffin-embedded block: a good alternative specimen to detect the use of opiates at least 20 years ago. Forensic Toxicol 2022; 40:302-311. [PMID: 36454408 PMCID: PMC9715498 DOI: 10.1007/s11419-022-00614-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 02/09/2022] [Indexed: 01/26/2023]
Abstract
PURPOSE Since the solely certain remnants of a performed autopsy are formalin-fixed paraffin-embedded (FFPE) samples, stored in the archives of every institute of legal medicine, we managed to extract molecules of toxicological interest from these specimens. METHODS We assessed the analysis of ten fresh liver samples collected from heroin-related deaths and then histologically processed the same samples. The embedded blocks were then extracted by means of a new extracting method and the eluates were measured. We also selected five toxicological cases of heroin-related fatalities that were examined 20 years ago, collected the toxicological result documents of the analysis that were carried out at the time and then processed the corresponding FFPE liver samples that were stored in the archives. RESULTS We managed to isolate heroine-related metabolites from 20-year-old paraffin-embedded blocks and calculated ratios to evaluate the performance of our new extraction. CONCLUSIONS According to our study, it is feasible to carry out a toxicological examination on old histological samples and, therefore, this matrix can be considered as a new alternative specimen for chemical-analytical evaluations of past cases or when fresh samples are not available anymore. The new extractive method was evaluated as efficient in treating these complex, paraffin-embedded samples. It was surprising that the target compounds could be quantitated from FFPE bocks created as long as 20 years ago.
Collapse
Affiliation(s)
- Domenico Di Candia
- Dipartimento di Scienze Biomediche per la Salute-Sezione di Medicina Legale e delle Assicurazioni, Università degli Studi di Milano, Via L. Mangiagalli 37, 20133 Milan, Italy
| | - Michele Boracchi
- Dipartimento di Scienze Biomediche per la Salute-Sezione di Medicina Legale e delle Assicurazioni, Università degli Studi di Milano, Via L. Mangiagalli 37, 20133 Milan, Italy
| | - Guendalina Gentile
- Dipartimento di Scienze Biomediche per la Salute-Sezione di Medicina Legale e delle Assicurazioni, Università degli Studi di Milano, Via L. Mangiagalli 37, 20133 Milan, Italy
| | - Gaia Giordano
- Dipartimento di Scienze Biomediche per la Salute-Sezione di Medicina Legale e delle Assicurazioni, Università degli Studi di Milano, Via L. Mangiagalli 37, 20133 Milan, Italy
| | - Riccardo Zoja
- Dipartimento di Scienze Biomediche per la Salute-Sezione di Medicina Legale e delle Assicurazioni, Università degli Studi di Milano, Via L. Mangiagalli 37, 20133 Milan, Italy
| |
Collapse
|
31
|
Sremac M, Paic F, Grubelic Ravic K, Serman L, Pavicic Dujmovic A, Brcic I, Krznaric Z, Nikuseva Martic T. Aberrant expression of SFRP1, SFRP3, DVL2 and DVL3 Wnt signaling pathway components in diffuse gastric carcinoma. Oncol Lett 2021; 22:822. [PMID: 34691249 PMCID: PMC8527567 DOI: 10.3892/ol.2021.13083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 09/03/2021] [Indexed: 02/07/2023] Open
Abstract
Diffuse gastric carcinoma (DGC) is characterized by poorly cohesive cells, highly invasive growth patterns, poor prognosis and resistance to the majority of available systemic therapeutic strategies. It has been previously reported that the Wnt/β-catenin signaling pathway serves a prominent role in the tumorigenesis of gastric carcinoma. However, the mechanism underlying the dysregulation of this pathway in DGC has not been fully elucidated. Therefore, the present study aimed to investigate the expression profiles of Wnt antagonists, secreted frizzled-related protein 1 (SFRP1) and secreted frizzled-related protein 3 (SFRP3), and dishevelled protein family members, dishevelled segment polarity protein 2 (DVL2) and dishevelled segment polarity protein 3 (DVL3), in DGC tissues. The association between the expression levels of these factors and the clinicopathological parameters of the patients was determined. Protein and mRNA expression levels in 62 DGC tumor tissues and 62 normal gastric mucosal tissues obtained from patients with non-malignant disease were measured using immunohistochemical and reverse transcription-quantitative PCR (RT-qPCR) analysis. Significantly lower protein expression levels of SFRP1 (P<0.001) and SFRP3 (P<0.001), but significantly higher protein expression levels of DVL2 (P<0.001) and DVL3 (P<0.001) were observed in DGC tissues compared with in control tissues by immunohistochemistry. In addition, significantly lower expression levels of SFRP1 (P<0.05) and higher expression levels of DVL3 (P<0.05) were found in in DGC tissues compared with those in normal gastric mucosal tissues using RT-qPCR. According to correlation analysis between the SFRP1, SFRP3, DVL2 and DVL3 protein expression levels and the clinicopathological characteristics of patients with DGC, a statistically significant correlation was found between the SFRP3 volume density and T stage (r=0.304; P=0.017) and between the SFRP3 volume density and clinical stage (r=0.336; P=0.008). In conclusion, the findings of the present study suggested that the Wnt signaling pathway components SFRP1, SFRP3, DVL2 and DVL3 may be aberrantly expressed in DGC tissues, implicating their possible role in the development of this malignant disease. The present data also revealed a positive relationship between SFRP3 protein expression and the clinical and T stage of DGC.
Collapse
Affiliation(s)
- Maja Sremac
- Division of Gastroenterology and Hepatology, University Hospital Center, 10000 Zagreb, Croatia
| | - Frane Paic
- Laboratory for Epigenetics and Molecular Medicine, Department of Medical Biology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Katja Grubelic Ravic
- Division of Gastroenterology and Hepatology, University Hospital Center, 10000 Zagreb, Croatia
| | - Ljiljana Serman
- Department of Medical Biology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia.,Centre of Excellence in Reproductive and Regenerative Medicine, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Aja Pavicic Dujmovic
- Department of Radiology, General Hospital 'Dr. Ivo Pedisic', 44000 Sisak, Croatia
| | - Iva Brcic
- Diagnostic and Research Institute of Pathology, Medical University of Graz, A-8010 Graz, Austria
| | - Zeljko Krznaric
- Division of Gastroenterology and Hepatology, University Hospital Center, 10000 Zagreb, Croatia
| | - Tamara Nikuseva Martic
- Department of Medical Biology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia.,Centre of Excellence in Reproductive and Regenerative Medicine, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| |
Collapse
|
32
|
Antonello M, Scutari R, Lauricella C, Renica S, Motta V, Torri S, Russo C, Gentile L, Cento V, Colagrossi L, Mattana G, Codecasa LR, Vismara C, Scaglione F, Veronese SM, Bonoldi E, Bandera A, Gori A, Mazzola E, Perno CF, Alteri C. Rapid Detection and Quantification of Mycobacterium tuberculosis DNA in Paraffinized Samples by Droplet Digital PCR: A Preliminary Study. Front Microbiol 2021; 12:727774. [PMID: 34589075 PMCID: PMC8475183 DOI: 10.3389/fmicb.2021.727774] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 08/16/2021] [Indexed: 01/23/2023] Open
Abstract
Background: Rapid and reliable diagnosis of tuberculosis (TB) represents a diagnostic challenge in compartmentalized extrapulmonary TB infection because of the small number of mycobacteria (MTB) and the frequent lack of fresh samples to perform culture. Here, we estimate the performances of homemade droplet digital PCR (ddPCR)-based assays against culture in 89 biopsies, for those fresh and formalin-fixed and paraffin-embedded (FFPE) subsamples were available. Methods: MTB diagnosis in fresh subsamples was performed by culture. Fresh subsamples were also analyzed for acid-fast bacilli smear-microscopy (AFB) and Xpert® MTB/RIF (Xpert). MTB examination was repeated in blind in the 89 FFPE subsamples by in-house ddPCR assays targeting the IS6110 and rpoB. Analytical sensitivity of ddPCR assays was evaluated using serial dilution of H37Rv strain. Limit of detection (LOD) was calculated by probit analysis. Results were expressed in copies/106 cells. Results: IS6110 and rpoB ddPCR assays showed a good linear correlation between expected and observed values (R2: 0.9907 and 0.9743, respectively). Probit analyses predicted a LOD of 17 and 40 copies/106 cells of MTB DNA for IS6110 and rpoB, respectively. Of the 89 biopsies, 68 were culture positive and 21 were culture negative. Considering mycobacterial culture as reference method, IS6110 assay yielded positive results in 67/68 culture-positive samples with a median interquartile range (IQR) of 1,680 (550–8,444) copies/106 cells (sensitivity: 98.5%; accuracy: 98.9). These performances were superior to those reported by the rpoB assay in FFPE subsamples (sensitivity: 66.20%; accuracy: 74.1) and even superior to those reported by Xpert and AFB in fresh subsamples (sensitivity: 79.4 and 33.8%, respectively; accuracy: 84.3 and 49.4, respectively). When Xpert and AFB results were stratified according to mycobacterial load detected by rpoB and IS6110 ddPCR, bacterial load was lower in Xpert and AFB negative with respect to Xpert and AFB-positive samples (p = 0.003 and 0.01 for rpoB and p = 0.01 and 0.11 for IS6110), confirming the poor sensitivity of these methods in paucibacillary disease. Conclusion: ddPCR provides highly sensitive, accurate, and rapid MTB diagnosis in FFPE samples, as defined by the high concordance between IS6110 assay and culture results. This approach can be safely introduced in clinical routine to accelerate MTB diagnosis mainly when culture results remain unavailable.
Collapse
Affiliation(s)
- Maria Antonello
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Rossana Scutari
- Department of Experimental Medicine, University of Rome "Tor Vergata,"Rome, Italy
| | - Calogero Lauricella
- Department of Pathology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Silvia Renica
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Valentina Motta
- Department of Pathology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Stefania Torri
- Unit of Microbiology, Department of Chemical-Clinical and Microbiology Analyses, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Cristina Russo
- Unit of Microbiology and Diagnostic Immunology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Leonarda Gentile
- Unit of Microbiology and Diagnostic Immunology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Valeria Cento
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Luna Colagrossi
- Unit of Microbiology and Diagnostic Immunology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Giordana Mattana
- Unit of Microbiology and Diagnostic Immunology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Luigi Ruffo Codecasa
- Regional TB Reference Centre, Villa Marelli Institute, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Chiara Vismara
- Unit of Microbiology, Department of Chemical-Clinical and Microbiology Analyses, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Francesco Scaglione
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy.,Unit of Microbiology, Department of Chemical-Clinical and Microbiology Analyses, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | | | - Emanuela Bonoldi
- Department of Pathology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Alessandra Bandera
- Infectious Disease Unit, Department of Internal Medicine, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Andrea Gori
- Infectious Disease Unit, Department of Internal Medicine, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Ester Mazzola
- Unit of Microbiology, Department of Chemical-Clinical and Microbiology Analyses, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Carlo Federico Perno
- Unit of Microbiology and Diagnostic Immunology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Multimodal Medicine Research Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Claudia Alteri
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy.,Multimodal Medicine Research Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| |
Collapse
|
33
|
Jorgensen M, Joseph P, Posgai AL, Vander Heide RS, Kusmartseva I, Atkinson MA. ACE2 chromogenic immunostaining protocol optimized for formalin-fixed paraffin-embedded human tissue sections. STAR Protoc 2021; 2:100696. [PMID: 34308375 PMCID: PMC8292114 DOI: 10.1016/j.xpro.2021.100696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Angiotensin-converting enzyme 2 (ACE2) is a key cellular entry factor for severe acute respiratory syndrome coronavirus 2. Hence, identifying cell types that express ACE2 is important for understanding the pathophysiology of coronavirus disease 2019. We performed extensive testing of multiple primary antibodies across various human tissue types. Here, we describe an optimized protocol for immunostaining of ACE2 in formalin-fixed paraffin-embedded human pancreas, small intestine, and kidney tissue sections obtained from organ donors and autopsies. For complete details on the use and execution of this protocol, please refer to Kusmartseva et al. (2020). We present an immunostaining protocol for rabbit monoclonal IgG anti-ACE2, clone EPR4435(2) ACE2 staining has been optimized in human pancreas, small intestine, and kidney Protocol has been optimized using tissue sections from human organ donors and autopsies
Collapse
Affiliation(s)
- Marda Jorgensen
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, College of Medicine, Gainesville, FL 32610, USA
| | - Paul Joseph
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, College of Medicine, Gainesville, FL 32610, USA
| | - Amanda L Posgai
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, College of Medicine, Gainesville, FL 32610, USA
| | | | - Irina Kusmartseva
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, College of Medicine, Gainesville, FL 32610, USA
| | - Mark A Atkinson
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, College of Medicine, Gainesville, FL 32610, USA.,Department of Pediatrics, University of Florida Diabetes Institute, College of Medicine, Gainesville, FL 32610, USA
| |
Collapse
|
34
|
Jiang ZJ, Li QY, Zhang YY, Zeng MX, Hu H, Zhang FM, Bi LB, Gu JH, Liu XJ. Deletion of MyD88 adaptor in nociceptor alleviates low-dose formalin-induced acute pain and persistent pain in mice. Neuroreport 2021; 32:378-385. [PMID: 33661805 DOI: 10.1097/wnr.0000000000001608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The myeloid differentiation factor 88 (MyD88) adaptor mediates signaling by Toll-like receptors and some interleukins (ILs) in neural and non-neuronal cells. Recently, MyD88 protein was found to express in primary sensory neurons and be involved in the maintenance of persistent pain induced by complete Freund's adjuvant, chronic constriction injury and chemotherapy treatment in rodents. However, whether MyD88 in nociceptive neurons contributes to persistent pain induced by intraplantar injection of formalin remains elusive. Here, using conditional knockout (CKO) mice, we found that selective deletion of Myd88 in Nav1.8-expressing primary nociceptive neurons led to reduced pain response in the recovery phase of 1% formalin-induced mechanical pain and impaired the persistent thermal pain. Moreover, CKO mice exhibited reduced phase II pain response in 1%, but not 5%, formalin-induced acute inflammatory pain. Finally, nociceptor MyD88 deletion resulted in less neuronal c-Fos activation in spinal dorsal horns following 1% formalin stimulation. These data suggest that MyD88 in nociceptive neurons is not only involved in persistent mechanical pain but also promotes the transition from acute inflammatory pain to persistent thermal hyperalgesia induced by low-dose formalin stimulation.
Collapse
Affiliation(s)
- Zuo-Jie Jiang
- Pain and Related Disease Research Laboratory, Shantou University Medical College, Shantou, Guangdong Province
| | - Qing-Yi Li
- Pain and Related Disease Research Laboratory, Shantou University Medical College, Shantou, Guangdong Province
| | - Ying-Ying Zhang
- Department of Anesthesiology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing
| | - Mei-Xing Zeng
- Pain and Related Disease Research Laboratory, Shantou University Medical College, Shantou, Guangdong Province
| | - Han Hu
- Institute of Apicultural Research/Key Laboratory of Pollinating Insect Biology, Ministry of Agriculture, Chinese Academy of Agricultural Sciences, No. 1 Beigou Xiangshan, Beijing, China
| | - Feng-Ming Zhang
- Pain and Related Disease Research Laboratory, Shantou University Medical College, Shantou, Guangdong Province
| | - Ling-Bo Bi
- Pain and Related Disease Research Laboratory, Shantou University Medical College, Shantou, Guangdong Province
| | - Jia-Hui Gu
- Pain and Related Disease Research Laboratory, Shantou University Medical College, Shantou, Guangdong Province
| | - Xing-Jun Liu
- Pain and Related Disease Research Laboratory, Shantou University Medical College, Shantou, Guangdong Province
| |
Collapse
|
35
|
Zaqout S, Becker LL, Kaindl AM. Immunofluorescence Staining of Paraffin Sections Step by Step. Front Neuroanat 2020; 14:582218. [PMID: 33240048 PMCID: PMC7680859 DOI: 10.3389/fnana.2020.582218] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 10/12/2020] [Indexed: 12/21/2022] Open
Abstract
Immunofluorescence staining is the most frequently applied technique to detect and visualize various molecules in biological samples. Many protocols can be found in the literature and the websites of commercial antibody producers. This can result in a time-consuming and costly methodical work to establish “simple” antibody staining. We here summarize in a stepwise manner an easy-to-follow immunofluorescence staining protocol with an improved specific fluorescent signal and a reduced background and non-specific binding signal. This will help scientists to save time, effort, and antibody costs during the application of such a valuable technique.
Collapse
Affiliation(s)
- Sami Zaqout
- Basic Medical Science Department, College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Lena-Luise Becker
- Charité - Universitätsmedizin Berlin, Institute of Cell and Neurobiology, Berlin, Germany.,Charité - Universitätsmedizin Berlin, Center for Chronically Sick Children (Sozialpädiatrisches Zentrum, SPZ), Berlin, Germany.,Charité - Universitätsmedizin Berlin, Department of Pediatric Neurology, Berlin, Germany
| | - Angela M Kaindl
- Charité - Universitätsmedizin Berlin, Institute of Cell and Neurobiology, Berlin, Germany.,Charité - Universitätsmedizin Berlin, Center for Chronically Sick Children (Sozialpädiatrisches Zentrum, SPZ), Berlin, Germany.,Charité - Universitätsmedizin Berlin, Department of Pediatric Neurology, Berlin, Germany
| |
Collapse
|
36
|
Chen S, Wu S, Zhang L, Zhang W, Liu Y, Chen B, Zhao S, Li W, Sun C, Wang L, Jia K, Wang H, Chen P, Wu C, Zhu J, He Y, Zhou C. CD39: the potential target in small cell lung cancer. Transl Lung Cancer Res 2020; 9:1483-1495. [PMID: 32953520 PMCID: PMC7481638 DOI: 10.21037/tlcr-20-798] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background It has been proven that the treatment window of small cell lung cancer (SCLC) is short, so it is vital to find other possible therapeutic targets. CD39 inhibits natural killer (NK) cells and promotes the occurrence and metastasis of tumors. There has been little research about the role of CD39 in SCLC, so we explored the correlation between CD39 and other surface antigens, and its association with survival in SCLC. Methods This study included 75 patients with SCLC from Shanghai Pulmonary Hospital. After paraffin embedding and sectioning, immunohistochemistry (IHC) was applied. Then we identify cutoff value for CD39 and other surface antigens based on the analysis of ROC curve in RFS by SPSS. All statistical analyses were based on SPSS and Graphpad Prism8. Chi-square test, Kendall's tau-b correlation analysis, Logistic regression analysis, Kaplan-Meier method, univariate and multivariate Cox regression analysis were conducted. In all analyses, P = 0.05 distinguished whether they had statistical significance. Results Of the 75 SCLC patients enrolled in this study, 61.33% positively expressed CD39. A correlation between CD39 and programmed cell death-ligand 1 (PD-L1) (P=0.007), CD3 (P<0.001), CD4 (P<0.001), CD8 (P<0.001), and forkhead box P3 (FOXP3) (P<0.001) on tumor-infiltrating lymphocytes (TILs) was identified by correlation analysis and logistic regression analysis. Based on Kaplan-Meier survival analysis, we found that CD39 affected relapse-free survival (RFS) [negative vs. positive, 95% confidence interval (CI): 0.2765-0.9862, P=0.0390]. SCLC patients with high-expressed CD39 and low-expressed PD-L1 had poor prognosis (P<0.001). Positive expression of CD39 and negative expression of CD3, CD4, CD8, and FOXP3 also indicated shorter RFS (P=0.0409). Univariate and multivariate Cox regression analysis was performed to confirm the factors that influenced RFS. Conclusions CD39, programmed cell death-1 (PD-1), and PD-L1 expressed on TILs but not on tumor cells. CD39 has a significant association with PD-L1, CD3, CD4, CD8, and FOXP3 on TILs. The positive expression of CD39 predicts poor prognosis. SCLC patients with low expression of CD39 combined with high expression of PD-L1 or CD3, CD4, CD8, and FOXP3 have a more favorable prognosis.
Collapse
Affiliation(s)
- Shanhao Chen
- Medical College of Soochow University, Suzhou, China
| | - Shengyu Wu
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China.,Medical School, Tongji University, Shanghai, China
| | - Liping Zhang
- Pathology Department, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Wei Zhang
- Pathology Department, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Yu Liu
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China.,Medical School, Tongji University, Shanghai, China
| | - Bin Chen
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Sha Zhao
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Wei Li
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Chenglong Sun
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China.,Anhui No.2 Provincial People's Hospital, Hefei, China
| | - Lei Wang
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Keyi Jia
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China.,Medical School, Tongji University, Shanghai, China
| | - Hao Wang
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China.,Medical School, Tongji University, Shanghai, China
| | - Peixin Chen
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China.,Medical School, Tongji University, Shanghai, China
| | - Chunyan Wu
- Pathology Department, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Junjie Zhu
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Shanghai, China
| | - Yayi He
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| | - Caicun Zhou
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, China
| |
Collapse
|
37
|
Parwani AV. Next generation diagnostic pathology: use of digital pathology and artificial intelligence tools to augment a pathological diagnosis. Diagn Pathol 2019; 14:138. [PMID: 31881972 PMCID: PMC6933733 DOI: 10.1186/s13000-019-0921-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Anil V Parwani
- Division of Digital and Computational Pathology, Department of Pathology, The Ohio State University, Columbus, USA.
| |
Collapse
|