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  1. Article ; Online: Histone Deacetylases in Kidney Physiology and Acute Kidney Injury.

    Hyndman, Kelly A

    Seminars in nephrology

    2020  Volume 40, Issue 2, Page(s) 138–147

    Abstract: Histone deacetylases (HDACs) are part of the epigenetic machinery that regulates transcriptional processes. The current paradigm is that HDACs silence gene expression via regulation of histone protein lysine deacetylation, or by forming corepressor ... ...

    Abstract Histone deacetylases (HDACs) are part of the epigenetic machinery that regulates transcriptional processes. The current paradigm is that HDACs silence gene expression via regulation of histone protein lysine deacetylation, or by forming corepressor complexes with transcription factors. However, HDACs are more than just nuclear proteins, and they can interact and deacetylate a growing number of nonhistone proteins to regulate cellular function. Cancer-field studies have shown that deranged HDAC activity results in uncontrolled proliferation, inflammation, and fibrosis; all pathologies that also may occur in kidney disease. Over the past decade, studies have emerged suggesting that HDAC inhibitors may prevent and potentially treat various models of acute kidney injury. This review focuses on the physiology of kidney HDACs and highlights the recent advances using HDAC inhibitors to potentially treat kidney disease patients.
    MeSH term(s) Acute Kidney Injury/drug therapy ; Acute Kidney Injury/etiology ; Acute Kidney Injury/genetics ; Acute Kidney Injury/prevention & control ; Animals ; Antineoplastic Agents/adverse effects ; Cisplatin/adverse effects ; Epigenesis, Genetic ; Histone Deacetylase Inhibitors/pharmacology ; Histone Deacetylase Inhibitors/therapeutic use ; Histone Deacetylases/genetics ; Histone Deacetylases/metabolism ; Histones/metabolism ; Humans ; Kidney/drug effects ; Kidney/metabolism ; Reperfusion Injury/complications ; Sepsis/complications ; Ureteral Obstruction/complications
    Chemical Substances Antineoplastic Agents ; Histone Deacetylase Inhibitors ; Histones ; Histone Deacetylases (EC 3.5.1.98) ; Cisplatin (Q20Q21Q62J)
    Language English
    Publishing date 2020-04-16
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 604652-6
    ISSN 1558-4488 ; 0270-9295
    ISSN (online) 1558-4488
    ISSN 0270-9295
    DOI 10.1016/j.semnephrol.2020.01.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: The Seventeenth International Conference on Endothelin (ET-17).

    Gumz, Michelle L / Hyndman, Kelly A

    Canadian journal of physiology and pharmacology

    2022  

    Abstract: The Seventeenth International Conference on Endothelin (ET-17) was held during 4-7 October 2021 and because of the SARS-CoV-2 pandemic it was held virtually. Sponsored by the American Physiological Society, ET-17 was held over 4 half-days, with exciting ... ...

    Abstract The Seventeenth International Conference on Endothelin (ET-17) was held during 4-7 October 2021 and because of the SARS-CoV-2 pandemic it was held virtually. Sponsored by the American Physiological Society, ET-17 was held over 4 half-days, with exciting studies related to all organ systems presented. Since the
    Language English
    Publishing date 2022-09-28
    Publishing country Canada
    Document type Journal Article
    ZDB-ID 127527-6
    ISSN 1205-7541 ; 0008-4212
    ISSN (online) 1205-7541
    ISSN 0008-4212
    DOI 10.1139/cjpp-2022-0091
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Mild dehydration effects on the murine kidney single-nucleus transcriptome and chromatin accessibility.

    Huynh, Nha Van / Rehage, Cassidy / Hyndman, Kelly A

    American journal of physiology. Renal physiology

    2023  Volume 325, Issue 6, Page(s) F717–F732

    Abstract: Daily, we may experience mild dehydration with a rise in plasma osmolality that triggers the release of vasopressin. Although the effect of dehydration is well characterized in collecting duct principal cells (CDPCs), we hypothesized that mild ... ...

    Abstract Daily, we may experience mild dehydration with a rise in plasma osmolality that triggers the release of vasopressin. Although the effect of dehydration is well characterized in collecting duct principal cells (CDPCs), we hypothesized that mild dehydration (<12 h) results in many kidney cell-specific changes in transcriptomes and chromatin accessibility. Single-nucleus (sn) multiome (RNA-assay for transposase-accessible chromatin) sequencing and bulk RNA sequencing of kidneys from male and female mice that were mildly water deprived or not were compared. Water-deprived mice had a significant increase in plasma osmolality. sn-multiome-seq resulted in 19,837 nuclei that were annotated into 33 clusters. In CDPCs, aquaporin 2 (
    MeSH term(s) Mice ; Animals ; Male ; Female ; Dehydration/metabolism ; Transcriptome ; Chromatin/genetics ; Chromatin/metabolism ; Aquaporin 2/genetics ; Aquaporin 2/metabolism ; Kidney/metabolism ; Water/metabolism
    Chemical Substances Chromatin ; Aquaporin 2 ; Water (059QF0KO0R)
    Language English
    Publishing date 2023-09-28
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 603837-2
    ISSN 1522-1466 ; 0363-6127
    ISSN (online) 1522-1466
    ISSN 0363-6127
    DOI 10.1152/ajprenal.00161.2023
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Could NAD

    Hyndman, Kelly A / Griffin, Matthew D

    Journal of the American Society of Nephrology : JASN

    2021  Volume 32, Issue 6, Page(s) 1270–1273

    MeSH term(s) Diabetes Mellitus ; Diabetic Nephropathies/prevention & control ; Dietary Supplements ; Humans ; NAD ; Sirtuin 1
    Chemical Substances NAD (0U46U6E8UK) ; Sirtuin 1 (EC 3.5.1.-)
    Language English
    Publishing date 2021-04-14
    Publishing country United States
    Document type Editorial ; Research Support, N.I.H., Extramural ; Comment
    ZDB-ID 1085942-1
    ISSN 1533-3450 ; 1046-6673
    ISSN (online) 1533-3450
    ISSN 1046-6673
    DOI 10.1681/ASN.2021020275
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Kidney cell type-specific changes in the chromatin and transcriptome landscapes following epithelial

    Hyndman, Kelly A / Crossman, David K

    Physiological genomics

    2021  Volume 54, Issue 2, Page(s) 45–57

    Abstract: Recent studies have identified at least 20 different kidney cell types based upon chromatin structure and gene expression. Histone deacetylases (HDACs) are epigenetic transcriptional repressors via deacetylation of histone lysines resulting in ... ...

    Abstract Recent studies have identified at least 20 different kidney cell types based upon chromatin structure and gene expression. Histone deacetylases (HDACs) are epigenetic transcriptional repressors via deacetylation of histone lysines resulting in inaccessible chromatin. We reported that kidney epithelial HDAC1 and HDAC2 activity is critical for maintaining a healthy kidney and preventing fluid-electrolyte abnormalities. However, to what extent does
    MeSH term(s) Animals ; Aquaporin 1/genetics ; Aquaporin 1/metabolism ; Aquaporin 2/genetics ; Aquaporin 2/metabolism ; Carrier Proteins/genetics ; Carrier Proteins/metabolism ; Chromatin/genetics ; Chromatin/metabolism ; Chromatin Immunoprecipitation Sequencing/methods ; Epithelial Cells/metabolism ; Female ; Gene Expression Profiling/methods ; Histone Deacetylase 1/genetics ; Histone Deacetylase 1/metabolism ; Histone Deacetylase 2/genetics ; Histone Deacetylase 2/metabolism ; Kidney/cytology ; Kidney/metabolism ; Male ; Mice, Knockout ; RNA-Seq/methods ; Transcriptome/genetics ; Mice
    Chemical Substances Aquaporin 2 ; Carrier Proteins ; Chromatin ; TARSH protein, mouse ; Aquaporin 1 (146410-94-8) ; Histone Deacetylase 1 (EC 3.5.1.98) ; Histone Deacetylase 2 (EC 3.5.1.98)
    Language English
    Publishing date 2021-12-10
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2038823-8
    ISSN 1531-2267 ; 1094-8341
    ISSN (online) 1531-2267
    ISSN 1094-8341
    DOI 10.1152/physiolgenomics.00102.2021
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Introduction: The 2022 Acute Kidney Injury: Bench to Bedside Conference.

    Hyndman, Kelly A / Hukriede, Neil / de Caestecker, Mark

    Seminars in nephrology

    2022  Volume 42, Issue 3, Page(s) 151275

    MeSH term(s) Humans ; Acute Kidney Injury/therapy
    Language English
    Publishing date 2022-11-17
    Publishing country United States
    Document type Editorial
    ZDB-ID 604652-6
    ISSN 1558-4488 ; 0270-9295
    ISSN (online) 1558-4488
    ISSN 0270-9295
    DOI 10.1016/j.semnephrol.2022.10.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Endothelin system expression in the kidney following cisplatin-induced acute kidney injury in male and female mice.

    Gales, Anabelle / Monteiro-Pai, Sureena / Hyndman, Kelly A

    Canadian journal of physiology and pharmacology

    2022  Volume 100, Issue 9, Page(s) 868–879

    Abstract: The chemotherapeutic agent cisplatin accumulates in the kidney and induces acute kidney injury (AKI). Preclinical and clinical studies suggest that young female mice and women show greater recovery from cisplatin-AKI compared to young male mice and men. ... ...

    Abstract The chemotherapeutic agent cisplatin accumulates in the kidney and induces acute kidney injury (AKI). Preclinical and clinical studies suggest that young female mice and women show greater recovery from cisplatin-AKI compared to young male mice and men. The endothelin (ET) and ET receptors are enriched in the kidney and may be dysfunctional in cisplatin-AKI; however, there is a gap in our knowledge about the putative effects of sex and cisplatin on the renal ET system. We hypothesized that cisplatin-AKI male and female mice will have increased expression of the renal ET system. As expected, all cisplatin-AKI mice had kidney damage and body weight loss greater than control mice. Cisplatin-AKI mice had greater cortical
    MeSH term(s) Acute Kidney Injury/chemically induced ; Acute Kidney Injury/drug therapy ; Acute Kidney Injury/genetics ; Animals ; Antineoplastic Agents/toxicity ; Apoptosis ; Cisplatin/toxicity ; Endothelin-1/metabolism ; Female ; Kidney ; Male ; Mice ; Mice, Inbred C57BL
    Chemical Substances Antineoplastic Agents ; Endothelin-1 ; Cisplatin (Q20Q21Q62J)
    Language English
    Publishing date 2022-06-15
    Publishing country Canada
    Document type Journal Article
    ZDB-ID 127527-6
    ISSN 1205-7541 ; 0008-4212
    ISSN (online) 1205-7541
    ISSN 0008-4212
    DOI 10.1139/cjpp-2022-0126
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: The contribution of collecting duct NOS1 to the concentrating mechanisms in male and female mice.

    Mendoza, Luciano D / Hyndman, Kelly A

    American journal of physiology. Renal physiology

    2019  Volume 317, Issue 3, Page(s) F547–F559

    Abstract: The collecting duct (CD) concentrates the urine, thereby maintaining body water volume and plasma osmolality within a normal range. The endocrine hormone arginine vasopressin acts in the CD to increase water permeability via the vasopressin 2 receptor ( ... ...

    Abstract The collecting duct (CD) concentrates the urine, thereby maintaining body water volume and plasma osmolality within a normal range. The endocrine hormone arginine vasopressin acts in the CD to increase water permeability via the vasopressin 2 receptor (V2R)-aquaporin (AQP) axis. Recent studies have suggested that autocrine factors may also contribute to the regulation of CD water permeability. Nitric oxide is produced predominantly by nitric oxide synthase 1 (NOS1) in the CD and acts as a diuretic during salt loading. The present study sought to determine whether CD NOS1 regulates diuresis during changes in hydration status. Male and female control and CD NOS1 knockout (CDNOS1KO) mice were hydrated (5% sucrose water), water deprived, or acutely challenged with the V2R agonist desmopressin. In male mice, water deprivation resulted in decreased urine flow and increased plasma osmolality, copeptin concentration, and kidney AQP2 abundance independent of CD NOS1. In female control mice, water deprivation reduced urine flow, increased plasma osmolality and copeptin, but did not significantly change total AQP2; however, there was increased basolateral AQP3 localization. Surprisingly, female CDNOS1KO mice while on the sucrose water presented with symptoms of dehydration. Fibroblast growth factor 21, an endocrine regulator of sweetness preference, was significantly higher in female CDNOS1KO mice, suggesting that this was reducing their drive to drink the sucrose water. With acute desmopressin challenge, female CDNOS1KO mice failed to appropriately concentrate their urine, resulting in higher plasma osmolality than controls. In conclusion, CD NOS1 plays only a minor role in urine-concentrating mechanisms.
    MeSH term(s) Animals ; Antidiuretic Agents/pharmacology ; Aquaporin 2/genetics ; Aquaporin 2/metabolism ; Aquaporin 3/genetics ; Aquaporin 3/metabolism ; Deamino Arginine Vasopressin/pharmacology ; Dehydration/enzymology ; Dehydration/physiopathology ; Disease Models, Animal ; Diuresis/drug effects ; Female ; Fibroblast Growth Factors/genetics ; Fibroblast Growth Factors/metabolism ; Kidney Concentrating Ability/drug effects ; Kidney Tubules, Collecting/drug effects ; Kidney Tubules, Collecting/enzymology ; Male ; Mice, Knockout ; Nitric Oxide/metabolism ; Nitric Oxide Synthase Type I/deficiency ; Nitric Oxide Synthase Type I/genetics ; Nitric Oxide Synthase Type I/metabolism ; Organism Hydration Status ; Osmolar Concentration ; Sex Factors ; Signal Transduction ; Urodynamics ; Water Deprivation
    Chemical Substances Antidiuretic Agents ; Aqp2 protein, mouse ; Aqp3 protein, mouse ; Aquaporin 2 ; fibroblast growth factor 21 ; Aquaporin 3 (158801-98-0) ; Nitric Oxide (31C4KY9ESH) ; Fibroblast Growth Factors (62031-54-3) ; Nitric Oxide Synthase Type I (EC 1.14.13.39) ; Nos1 protein, mouse (EC 1.14.13.39) ; Deamino Arginine Vasopressin (ENR1LLB0FP)
    Language English
    Publishing date 2019-06-26
    Publishing country United States
    Document type Comparative Study ; Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 603837-2
    ISSN 1522-1466 ; 0363-6127
    ISSN (online) 1522-1466
    ISSN 0363-6127
    DOI 10.1152/ajprenal.00180.2019
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Dynamic regulation of lysine acetylation: the balance between acetyltransferase and deacetylase activities.

    Hyndman, Kelly A / Knepper, Mark A

    American journal of physiology. Renal physiology

    2017  Volume 313, Issue 4, Page(s) F842–F846

    Abstract: Reversible posttranslational modification of proteins is a critically important process in physiological regulation in all tissues, including the kidney. Lysine acetylation occurs in all organisms, including prokaryotes, and is regulated by a balance ... ...

    Abstract Reversible posttranslational modification of proteins is a critically important process in physiological regulation in all tissues, including the kidney. Lysine acetylation occurs in all organisms, including prokaryotes, and is regulated by a balance between the lysine acetyltransferases (adding an acetyl group to the ε-amino group of a lysine) and deacetylases (removing it). The kidney is an organ rich with acetylated lysines, which map to >2,000 unique histone and nonhistone proteins. However, the functional significance of these modifications remains to be discovered. Here, we have compiled gene lists of the acetyltransferases and deacetylases in the mammalian genomes and mapped their mRNA expression along the renal tubule. These lists will be useful for generating targeted approaches to test the physiological or pathophysiological significance of lysine acetylation changes in the kidney.
    MeSH term(s) Acetylation ; Acetyltransferases/genetics ; Acetyltransferases/metabolism ; Animals ; Histone Deacetylases/genetics ; Histone Deacetylases/metabolism ; Humans ; Nephrons/enzymology
    Chemical Substances Acetyltransferases (EC 2.3.1.-) ; Histone Deacetylases (EC 3.5.1.98)
    Language English
    Publishing date 2017-07-12
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 603837-2
    ISSN 1522-1466 ; 0363-6127
    ISSN (online) 1522-1466
    ISSN 0363-6127
    DOI 10.1152/ajprenal.00313.2017
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Physiologic homeostasis after pig-to-human kidney xenotransplantation.

    Judd, Eric / Kumar, Vineeta / Porrett, Paige M / Hyndman, Kelly A / Anderson, Douglas J / Jones-Carr, Maggie E / Shunk, Andrew / Epstein, Daniel R / Fatima, Huma / Katsurada, Akemi / Satou, Ryousuke / Navar, L Gabriel / Locke, Jayme E

    Kidney international

    2024  Volume 105, Issue 5, Page(s) 971–979

    Abstract: Demand for kidney grafts outpaces supply, limiting kidney transplantation as a treatment for kidney failure. Xenotransplantation has the potential to make kidney transplantation available to many more patients with kidney failure, but the ability of ... ...

    Abstract Demand for kidney grafts outpaces supply, limiting kidney transplantation as a treatment for kidney failure. Xenotransplantation has the potential to make kidney transplantation available to many more patients with kidney failure, but the ability of xenografts to support human physiologic homeostasis has not been established. A brain-dead adult decedent underwent bilateral native nephrectomies followed by 10 gene-edited (four gene knockouts, six human transgenes) pig-to-human xenotransplantation. Physiologic parameters and laboratory values were measured for seven days in a critical care setting. Data collection aimed to assess homeostasis by measuring components of the renin-angiotensin-aldosterone system, parathyroid hormone signaling, glomerular filtration rate, and markers of salt and water balance. Mean arterial blood pressure was maintained above 60 mmHg throughout. Pig kidneys secreted renin (post-operative day three to seven mean and standard deviation: 47.3 ± 9 pg/mL). Aldosterone and angiotensin II levels were present (post-operative day three to seven, 57.0 ± 8 pg/mL and 5.4 ± 4.3 pg/mL, respectively) despite plasma renin activity under 0.6 ng/mL/hr. Parathyroid hormone levels followed ionized calcium. Urine output down trended from 37 L to 6 L per day with 4.5 L of electrolyte free water loss on post-operative day six. Aquaporin 2 channels were detected in the apical surface of principal cells, supporting pig kidney response to human vasopressin. Serum creatinine down trended to 0.9 mg/dL by day seven. Glomerular filtration rate ranged 90-240 mL/min by creatinine clearance and single-dose inulin clearance. Thus, in a human decedent model, xenotransplantation of 10 gene-edited pig kidneys provided physiologic balance for seven days. Hence, our in-human study paves the way for future clinical study of pig-to-human kidney xenotransplantation in living persons.
    MeSH term(s) Adult ; Humans ; Animals ; Swine ; Renin ; Transplantation, Heterologous ; Kidney/physiology ; Renin-Angiotensin System ; Aldosterone ; Homeostasis ; Renal Insufficiency ; Parathyroid Hormone ; Water
    Chemical Substances Renin (EC 3.4.23.15) ; Aldosterone (4964P6T9RB) ; Parathyroid Hormone ; Water (059QF0KO0R)
    Language English
    Publishing date 2024-01-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 120573-0
    ISSN 1523-1755 ; 0085-2538
    ISSN (online) 1523-1755
    ISSN 0085-2538
    DOI 10.1016/j.kint.2024.01.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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