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  1. Article ; Online: Xq26.3-q27.1 duplication including SOX3 gene in a Chinese boy with hypopituitarism: case report and two years treatment follow up.

    Du, Caiqi / Wang, Feiya / Li, Zhuoguang / Zhang, Mini / Yu, Xiao / Liang, Yan / Luo, Xiaoping

    BMC medical genomics

    2022  Volume 15, Issue 1, Page(s) 19

    Abstract: Background: SOX3 is essential for pituitary development normally at the earliest stages of development. In humans, variants of SOX3 can cause X-linked hypopituitarism with various clinical manifestations, with or without mental retardation.: Case ... ...

    Abstract Background: SOX3 is essential for pituitary development normally at the earliest stages of development. In humans, variants of SOX3 can cause X-linked hypopituitarism with various clinical manifestations, with or without mental retardation.
    Case presentation: We present an 8-year-old Chinese patient with congenital hypopituitarism who had a 6.180 Mb duplication on Xq26.3q27.1 including SOX3, F9, and eight other contiguous genes. The main complains of the boy was short stature. His height was 90.1 cm (- 5.87SDS), weight 11.5 kg (- 5.25SDS). He developed growth hormone (GH) deficiency, cryptorchidism and low thyroid function. Pituitary magnetic resonance imaging revealed the pituitary dysplasia. After diagnosis, levothyroxine was given for one month first, and the thyroid function basically returned to normal, but the growth situation did not improve at all. Then recombinant human GH was given, his height, growth rate and height SDS were improved significantly in the 2 years follow-up. The level of height SDS improved from - 5.87 SDS before treatment to - 3.27 SDS after the first year of treatment and - 1.78 SDS after the second years of treatment. Gonadal function and long-term prognosis of the patient still need further observation and follow-up.
    Conclusions: This is the first case of Chinese male patient with multiple hypophysis dysfunction caused by SOX3 duplication, which will expand the range of phenotypes observed in patients with duplication of SOX3.
    MeSH term(s) China ; Chromosomes, Human, X ; Follow-Up Studies ; Humans ; Hypopituitarism/genetics ; Male ; SOXB1 Transcription Factors/genetics
    Chemical Substances SOX3 protein, human ; SOXB1 Transcription Factors
    Language English
    Publishing date 2022-02-03
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 2411865-5
    ISSN 1755-8794 ; 1755-8794
    ISSN (online) 1755-8794
    ISSN 1755-8794
    DOI 10.1186/s12920-022-01167-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Abnormal global longitudinal strain and reduced serum inflammatory markers in cardiac AL amyloidosis patients without significant amyloid fibril deposition.

    Edwards, Camille V / Ferri, Grace M / Villegas-Galaviz, Josue / Ghosh, Sabrina / Bawa, Pushpinder Singh / Wang, Feiya / Klimtchuk, Elena / Ajayi, Tinuola B / Morgan, Gareth J / Prokaeva, Tatiana / Staron, Andrew / Ruberg, Frederick L / Sanchorawala, Vaishali / Giadone, Richard M / Murphy, George J

    bioRxiv : the preprint server for biology

    2024  

    Abstract: Background: Cardiac dysfunction in AL amyloidosis is thought to be partly related to the direct impact of AL LCs on cardiomyocyte function, with the degree of dysfunction at diagnosis as a major determinant of clinical outcomes. Nonetheless, mechanisms ... ...

    Abstract Background: Cardiac dysfunction in AL amyloidosis is thought to be partly related to the direct impact of AL LCs on cardiomyocyte function, with the degree of dysfunction at diagnosis as a major determinant of clinical outcomes. Nonetheless, mechanisms underlying LC-induced myocardial toxicity are not well understood.
    Methods: We identified gene expression changes correlating with human cardiac cells exposed to a cardiomyopathy-associated κAL LC. We then sought to confirm these findings in a clinical dataset by focusing on clinical parameters associated with the pathways dysregulated at the gene expression level.
    Results: Upon exposure to a cardiomyopathy-associated κAL LC, cardiac cells exhibited gene expression changes related to myocardial contractile function and inflammation, leading us to hypothesize that there could be clinically detectable changes in GLS on echocardiogram and serum inflammatory markers in patients. Thus, we identified 29 patients with normal IVSd but abnormal cardiac biomarkers suggestive of LC-induced cardiac dysfunction. These patients display early cardiac biomarker staging, abnormal GLS, and significantly reduced serum inflammatory markers compared to patients with clinically evident amyloid fibril deposition.
    Conclusion: Collectively, our findings highlight early molecular and functional signatures of cardiac AL amyloidosis, with potential impact for developing improved patient biomarkers and novel therapeutics.
    Language English
    Publishing date 2024-03-16
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2024.03.14.584987
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Generation of human alveolar epithelial type I cells from pluripotent stem cells.

    Burgess, Claire L / Huang, Jessie / Bawa, Pushpinder S / Alysandratos, Konstantinos-Dionysios / Minakin, Kasey / Ayers, Lauren J / Morley, Michael P / Babu, Apoorva / Villacorta-Martin, Carlos / Yampolskaya, Maria / Hinds, Anne / Thapa, Bibek R / Wang, Feiya / Matschulat, Adeline / Mehta, Pankaj / Morrisey, Edward E / Varelas, Xaralabos / Kotton, Darrell N

    Cell stem cell

    2024  Volume 31, Issue 5, Page(s) 657–675.e8

    Abstract: Alveolar epithelial type I cells (AT1s) line the gas exchange barrier of the distal lung and have been historically challenging to isolate or maintain in cell culture. Here, we engineer a human in vitro AT1 model system via directed differentiation of ... ...

    Abstract Alveolar epithelial type I cells (AT1s) line the gas exchange barrier of the distal lung and have been historically challenging to isolate or maintain in cell culture. Here, we engineer a human in vitro AT1 model system via directed differentiation of induced pluripotent stem cells (iPSCs). We use primary adult AT1 global transcriptomes to suggest benchmarks and pathways, such as Hippo-LATS-YAP/TAZ signaling, enriched in these cells. Next, we generate iPSC-derived alveolar epithelial type II cells (AT2s) and find that nuclear YAP signaling is sufficient to promote a broad transcriptomic shift from AT2 to AT1 gene programs. The resulting cells express a molecular, morphologic, and functional phenotype reminiscent of human AT1 cells, including the capacity to form a flat epithelial barrier producing characteristic extracellular matrix molecules and secreted ligands. Our results provide an in vitro model of human alveolar epithelial differentiation and a potential source of human AT1s.
    MeSH term(s) Humans ; Cell Differentiation ; Alveolar Epithelial Cells/cytology ; Alveolar Epithelial Cells/metabolism ; Induced Pluripotent Stem Cells/cytology ; Induced Pluripotent Stem Cells/metabolism ; Signal Transduction ; Cells, Cultured ; Transcriptome/genetics ; Pluripotent Stem Cells/cytology ; Pluripotent Stem Cells/metabolism
    Language English
    Publishing date 2024-04-19
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2375354-7
    ISSN 1875-9777 ; 1934-5909
    ISSN (online) 1875-9777
    ISSN 1934-5909
    DOI 10.1016/j.stem.2024.03.017
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Directed differentiation of mouse pluripotent stem cells into functional lung-specific mesenchyme.

    Alber, Andrea B / Marquez, Hector A / Ma, Liang / Kwong, George / Thapa, Bibek R / Villacorta-Martin, Carlos / Lindstrom-Vautrin, Jonathan / Bawa, Pushpinder / Wang, Feiya / Luo, Yongfeng / Ikonomou, Laertis / Shi, Wei / Kotton, Darrell N

    Nature communications

    2023  Volume 14, Issue 1, Page(s) 3488

    Abstract: While the generation of many lineages from pluripotent stem cells has resulted in basic discoveries and clinical trials, the derivation of tissue-specific mesenchyme via directed differentiation has markedly lagged. The derivation of lung-specific ... ...

    Abstract While the generation of many lineages from pluripotent stem cells has resulted in basic discoveries and clinical trials, the derivation of tissue-specific mesenchyme via directed differentiation has markedly lagged. The derivation of lung-specific mesenchyme is particularly important since this tissue plays crucial roles in lung development and disease. Here we generate a mouse induced pluripotent stem cell (iPSC) line carrying a lung-specific mesenchymal reporter/lineage tracer. We identify the pathways (RA and Shh) necessary to specify lung mesenchyme and find that mouse iPSC-derived lung mesenchyme (iLM) expresses key molecular and functional features of primary developing lung mesenchyme. iLM recombined with engineered lung epithelial progenitors self-organizes into 3D organoids with juxtaposed layers of epithelium and mesenchyme. Co-culture increases yield of lung epithelial progenitors and impacts epithelial and mesenchymal differentiation programs, suggesting functional crosstalk. Our iPSC-derived population thus provides an inexhaustible source of cells for studying lung development, modeling diseases, and developing therapeutics.
    MeSH term(s) Animals ; Mice ; Pluripotent Stem Cells ; Cell Differentiation ; Induced Pluripotent Stem Cells ; Thorax ; Mesoderm
    Language English
    Publishing date 2023-06-13
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-023-39099-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: De novo hematopoiesis from the fetal lung.

    Yeung, Anthony K / Villacorta-Martin, Carlos / Lindstrom-Vautrin, Jonathan / Belkina, Anna C / Vanuytsel, Kim / Dowrey, Todd W / Ysasi, Alexandra B / Bawa, Pushpinder / Wang, Feiya / Vrbanac, Vladimir / Mostoslavsky, Gustavo / Balazs, Alejandro B / Murphy, George J

    Blood advances

    2023  Volume 7, Issue 22, Page(s) 6898–6912

    Abstract: Hemogenic endothelial cells (HECs) are specialized cells that undergo endothelial-to-hematopoietic transition (EHT) to give rise to the earliest precursors of hematopoietic progenitors that will eventually sustain hematopoiesis throughout the lifetime of ...

    Abstract Hemogenic endothelial cells (HECs) are specialized cells that undergo endothelial-to-hematopoietic transition (EHT) to give rise to the earliest precursors of hematopoietic progenitors that will eventually sustain hematopoiesis throughout the lifetime of an organism. Although HECs are thought to be primarily limited to the aorta-gonad-mesonephros (AGM) during early development, EHT has been described in various other hematopoietic organs and embryonic vessels. Though not defined as a hematopoietic organ, the lung houses many resident hematopoietic cells, aids in platelet biogenesis, and is a reservoir for hematopoietic stem and progenitor cells (HSPCs). However, lung HECs have never been described. Here, we demonstrate that the fetal lung is a potential source of HECs that have the functional capacity to undergo EHT to produce de novo HSPCs and their resultant progeny. Explant cultures of murine and human fetal lungs display adherent endothelial cells transitioning into floating hematopoietic cells, accompanied by the gradual loss of an endothelial signature. Flow cytometric and functional assessment of fetal-lung explants showed the production of multipotent HSPCs that expressed the EHT and pre-HSPC markers EPCR, CD41, CD43, and CD44. scRNA-seq and small molecule modulation demonstrated that fetal lung HECs rely on canonical signaling pathways to undergo EHT, including TGFβ/BMP, Notch, and YAP. Collectively, these data support the possibility that post-AGM development, functional HECs are present in the fetal lung, establishing this location as a potential extramedullary site of de novo hematopoiesis.
    MeSH term(s) Animals ; Mice ; Humans ; Hematopoiesis ; Hematopoietic Stem Cells/metabolism ; Cell Differentiation ; Endothelium ; Hemangioblasts/metabolism
    Language English
    Publishing date 2023-09-20
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 2915908-8
    ISSN 2473-9537 ; 2473-9529
    ISSN (online) 2473-9537
    ISSN 2473-9529
    DOI 10.1182/bloodadvances.2022008347
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  6. Article ; Online: Durable alveolar engraftment of PSC-derived lung epithelial cells into immunocompetent mice.

    Herriges, Michael J / Yampolskaya, Maria / Thapa, Bibek R / Lindstrom-Vautrin, Jonathan / Wang, Feiya / Huang, Jessie / Na, Cheng-Lun / Ma, Liang / Montminy, McKenna M / Bawa, Pushpinder / Villacorta-Martin, Carlos / Mehta, Pankaj / Kotton, Darrell N

    Cell stem cell

    2023  Volume 30, Issue 9, Page(s) 1217–1234.e7

    Abstract: Durable reconstitution of the distal lung epithelium with pluripotent stem cell (PSC) derivatives, if realized, would represent a promising therapy for diseases that result from alveolar damage. Here, we differentiate murine PSCs into self-renewing lung ... ...

    Abstract Durable reconstitution of the distal lung epithelium with pluripotent stem cell (PSC) derivatives, if realized, would represent a promising therapy for diseases that result from alveolar damage. Here, we differentiate murine PSCs into self-renewing lung epithelial progenitors able to engraft into the injured distal lung epithelium of immunocompetent, syngeneic mouse recipients. After transplantation, these progenitors mature in the distal lung, assuming the molecular phenotypes of alveolar type 2 (AT2) and type 1 (AT1) cells. After months in vivo, donor-derived cells retain their mature phenotypes, as characterized by single-cell RNA sequencing (scRNA-seq), histologic profiling, and functional assessment that demonstrates continued capacity of the engrafted cells to proliferate and differentiate. These results indicate durable reconstitution of the distal lung's facultative progenitor and differentiated epithelial cell compartments with PSC-derived cells, thus establishing a novel model for pulmonary cell therapy that can be utilized to better understand the mechanisms and utility of engraftment.
    MeSH term(s) Animals ; Mice ; Epithelial Cells ; Epithelium ; Cell Differentiation ; Cell- and Tissue-Based Therapy ; Pluripotent Stem Cells
    Language English
    Publishing date 2023-08-24
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 2375354-7
    ISSN 1875-9777 ; 1934-5909
    ISSN (online) 1875-9777
    ISSN 1934-5909
    DOI 10.1016/j.stem.2023.07.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: De Novo

    Wang, Ruobing / Simone-Roach, Chantelle / Lindstrom-Vautrin, Jonathan / Wang, Feiya / Rollins, Stuart / Bawa, Pushpinder Singh / Lu, Junjie / Tang, Yang / Beermann, Mary Lou / Schlaeger, Thorsten / Mahoney, John / Rowe, Steven M / Hawkins, Finn J / Kotton, Darrell N

    American journal of respiratory and critical care medicine

    2023  Volume 207, Issue 9, Page(s) 1249–1253

    MeSH term(s) Humans ; Induced Pluripotent Stem Cells ; Cystic Fibrosis ; Cells, Cultured ; Cell Line ; Cystic Fibrosis Transmembrane Conductance Regulator ; Cell Differentiation
    Chemical Substances Cystic Fibrosis Transmembrane Conductance Regulator (126880-72-6)
    Language English
    Publishing date 2023-02-21
    Publishing country United States
    Document type Letter ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 1180953-x
    ISSN 1535-4970 ; 0003-0805 ; 1073-449X
    ISSN (online) 1535-4970
    ISSN 0003-0805 ; 1073-449X
    DOI 10.1164/rccm.202205-1010LE
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  8. Article: Generation of human alveolar epithelial type I cells from pluripotent stem cells.

    Burgess, Claire L / Huang, Jessie / Bawa, Pushpinder / Alysandratos, Konstantinos-Dionysios / Minakin, Kasey / Morley, Michael P / Babu, Apoorva / Villacorta-Martin, Carlos / Hinds, Anne / Thapa, Bibek R / Wang, Feiya / Matschulat, Adeline M / Morrisey, Edward E / Varelas, Xaralabos / Kotton, Darrell N

    bioRxiv : the preprint server for biology

    2023  

    Abstract: In the distal lung, alveolar epithelial type I cells (AT1s) comprise the vast majority of alveolar surface area and are uniquely flattened to allow the diffusion of oxygen into the capillaries. This structure along with a quiescent, terminally ... ...

    Abstract In the distal lung, alveolar epithelial type I cells (AT1s) comprise the vast majority of alveolar surface area and are uniquely flattened to allow the diffusion of oxygen into the capillaries. This structure along with a quiescent, terminally differentiated phenotype has made AT1s particularly challenging to isolate or maintain in cell culture. As a result, there is a lack of established models for the study of human AT1 biology, and in contrast to alveolar epithelial type II cells (AT2s), little is known about the mechanisms regulating their differentiation. Here we engineer a human in vitro AT1 model system through the directed differentiation of induced pluripotent stem cells (iPSC). We first define the global transcriptomes of primary adult human AT1s, suggesting gene-set benchmarks and pathways, such as Hippo-LATS-YAP/TAZ signaling, that are enriched in these cells. Next, we generate iPSC-derived AT2s (iAT2s) and find that activating nuclear YAP signaling is sufficient to promote a broad transcriptomic shift from AT2 to AT1 gene programs. The resulting cells express a molecular, morphologic, and functional phenotype reminiscent of human AT1 cells, including the capacity to form a flat epithelial barrier which produces characteristic extracellular matrix molecules and secreted ligands. Our results indicate a role for Hippo-LATS-YAP signaling in the differentiation of human AT1s and demonstrate the generation of viable AT1-like cells from iAT2s, providing an in vitro model of human alveolar epithelial differentiation and a potential source of human AT1s that until now have been challenging to viably obtain from patients.
    Language English
    Publishing date 2023-01-20
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.01.19.524655
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Airway stem cell reconstitution by the transplantation of primary or pluripotent stem cell-derived basal cells.

    Ma, Liang / Thapa, Bibek R / Le Suer, Jake A / Tilston-Lünel, Andrew / Herriges, Michael J / Berical, Andrew / Beermann, Mary Lou / Wang, Feiya / Bawa, Pushpinder S / Kohn, Anat / Ysasi, Alexandra B / Kiyokawa, Hirofumi / Matte, Taylor M / Randell, Scott H / Varelas, Xaralabos / Hawkins, Finn J / Kotton, Darrell N

    Cell stem cell

    2023  Volume 30, Issue 9, Page(s) 1199–1216.e7

    Abstract: Life-long reconstitution of a tissue's resident stem cell compartment with engrafted cells has the potential to durably replenish organ function. Here, we demonstrate the engraftment of the airway epithelial stem cell compartment via intra-airway ... ...

    Abstract Life-long reconstitution of a tissue's resident stem cell compartment with engrafted cells has the potential to durably replenish organ function. Here, we demonstrate the engraftment of the airway epithelial stem cell compartment via intra-airway transplantation of mouse or human primary and pluripotent stem cell (PSC)-derived airway basal cells (BCs). Murine primary or PSC-derived BCs transplanted into polidocanol-injured syngeneic recipients give rise for at least two years to progeny that stably display the morphologic, molecular, and functional phenotypes of airway epithelia. The engrafted basal-like cells retain extensive self-renewal potential, evident by the capacity to reconstitute the tracheal epithelium through seven generations of secondary transplantation. Using the same approach, human primary or PSC-derived BCs transplanted into NOD scid gamma (NSG) recipient mice similarly display multilineage airway epithelial differentiation in vivo. Our results may provide a step toward potential future syngeneic cell-based therapy for patients with diseases resulting from airway epithelial cell damage or dysfunction.
    MeSH term(s) Humans ; Animals ; Mice ; Pluripotent Stem Cells ; Cell- and Tissue-Based Therapy ; Epithelial Cells ; Epithelium ; Mice, Inbred NOD ; Mice, SCID
    Language English
    Publishing date 2023-08-24
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 2375354-7
    ISSN 1875-9777 ; 1934-5909
    ISSN (online) 1875-9777
    ISSN 1934-5909
    DOI 10.1016/j.stem.2023.07.014
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  10. Article ; Online: The COPD GWAS gene ADGRG6 instructs function and injury response in human iPSC-derived type II alveolar epithelial cells.

    Werder, Rhiannon B / Berthiaume, Kayleigh A / Merritt, Carly / Gallagher, Marissa / Villacorta-Martin, Carlos / Wang, Feiya / Bawa, Pushpinder / Malik, Vidhi / Lyons, Shawn M / Basil, Maria C / Morrisey, Edward E / Kotton, Darrell N / Zhou, Xiaobo / Cho, Michael H / Wilson, Andrew A

    American journal of human genetics

    2023  Volume 110, Issue 10, Page(s) 1735–1749

    Abstract: Emphysema and chronic obstructive pulmonary disease (COPD) most commonly result from the effects of environmental exposures in genetically susceptible individuals. Genome-wide association studies have implicated ADGRG6 in COPD and reduced lung function, ... ...

    Abstract Emphysema and chronic obstructive pulmonary disease (COPD) most commonly result from the effects of environmental exposures in genetically susceptible individuals. Genome-wide association studies have implicated ADGRG6 in COPD and reduced lung function, and a limited number of studies have examined the role of ADGRG6 in cells representative of the airway. However, the ADGRG6 locus is also associated with DLCO/VA, an indicator of gas exchange efficiency and alveolar function. Here, we sought to evaluate the mechanistic contributions of ADGRG6 to homeostatic function and disease in type 2 alveolar epithelial cells. We applied an inducible CRISPR interference (CRISPRi) human induced pluripotent stem cell (iPSC) platform to explore ADGRG6 function in iPSC-derived AT2s (iAT2s). We demonstrate that ADGRG6 exerts pleiotropic effects on iAT2s including regulation of focal adhesions, cytoskeleton, tight junctions, and proliferation. Moreover, we find that ADGRG6 knockdown in cigarette smoke-exposed iAT2s alters cellular responses to injury, downregulating apical complexes in favor of proliferation. Our work functionally characterizes the COPD GWAS gene ADGRG6 in human alveolar epithelium.
    MeSH term(s) Humans ; Alveolar Epithelial Cells/metabolism ; Epithelial Cells/metabolism ; Genome-Wide Association Study ; Induced Pluripotent Stem Cells/metabolism ; Lung/metabolism ; Pulmonary Disease, Chronic Obstructive/genetics ; Pulmonary Disease, Chronic Obstructive/metabolism ; Receptors, G-Protein-Coupled/genetics
    Chemical Substances Receptors, G-Protein-Coupled ; ADGRG6 protein, human
    Language English
    Publishing date 2023-09-20
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 219384-x
    ISSN 1537-6605 ; 0002-9297
    ISSN (online) 1537-6605
    ISSN 0002-9297
    DOI 10.1016/j.ajhg.2023.08.017
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