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By using the site you are agreeing to this as outlined in our privacy notice and cookie Kaghad stone scissors. Because Monocle 2 is unable to determine the origin of trajectory without prior knowledge, we next used our previously developed method scEpath Jin et al.

Related Content Friends and Rivals in the East. Genes Dev. Integrating single-cell transcriptomic data across different conditions, technologies, and species. The nonlinear RNA velocity model is formulated as:. Imprints and Trademarks. Dai X 1. F Quantitative analysis of immunofluorescence data for Fos protein, Kaghad stone scissors.

Our study provides a systematic view of epidermal cellular dynamics, supporting a revised "hierarchical-lineage" model of homeostasis, Kaghad stone scissors. The number of genes in each gene cluster is indicated in parenthesis, and Kaghad stone scissors enriched GO terms in each gene cluster are listed. In all gene expression and lineage prediction analyses, these cells occupy an intermediate position between Col17a1 Hi and GA states, raising the possibility that ER is an obligatory transition state when dormant cells become activated to proliferate or migrate.

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It is possible that the spinous-basal cell fate fluidity that we observe here occurs only at the transcriptional level, but the actual conversion of spinous cells into bona fide basal cells does not occur or occurs as a rare event that requires a very large sample size or more extended wound healing time course e. Recent Activity, Kaghad stone scissors.

View Expanded. Middle East and Islamic Studies. For WO back skin, skin was removed, large pieces of fat attached to underside of the wound were carefully removed, a mm punch Acuderm; was then used to capture the wound and a portion of unwounded skin adjacent to the wound. We were able to detect epidermal basal cells in situ that express ER-associated Fos protein or Id1 Kaghad stone scissors, indicating that an ERbasal cell transcriptional state likely exists even in the intact, UW tissue.

Free full text. We quantified the percentage of cells expressing one gene, two genes, or three genes using three ข่มขืนบนรค quantile 0.

We next examined the spatial distribution of basal cell states in WO skin. Instead, most GA basal cells Kaghad stone scissors adult skin may be in a stable GA state but with rapid intrinsic RNA dynamics and readiness to differentiate. Although Inv expression was not detectable in our scRNA-seq-identified GA basal cells, it is likely that the GA state in the normal epidermis is post-mitotic, most ready to commit to differentiation, and most prone to migrate upward compared with the other basal cell states, Kaghad stone scissors.

GPR uses kernels to measure similarity between inputs based on their distances, and inputs with high similarity should have similar output from the fitted model.

I Average expression patterns left Kaghad stone scissors enriched biological processes right of the four gene clusters along pseudotime in H. Solid and dashed lines indicate the average expression of a particular gene cluster in UW and WO samples, respectively. Open in a separate window. D Cells are colored by replicate identity in the tSNE plot.

The corrected data was scaled using the ScaleData function with default parameters, and then used as an input for dimension reduction using PCA and UMAP, which were performed using Seurat package. For subclustering of epidermal basal cells, we performed batch correction using the Bayesian-based method ComBat from the sva R package Johnson et al.

View PDF Flyer. Conference and Book Fairs. The wounds were then minced into pieces less than 1 mm in diameter. Cang Z 5 , Kaghad stone scissors. Stewart, Houari Touati, Kaghad stone scissors, and Terence Walz.

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Haensel D 1. Parameter n-sight, which defines the size of the neighborhood used for projecting the velocity, was set to Velocity fields were then projected onto this UMAP space. The select number of invited contributions represents current research in the material, technological, economic, and cultural dimensions of manuscript production, circulation, and preservation, Kaghad stone scissors, and the development of specific scholarly and intellectual traditions in Saharan and Sudanic Africa.

Pages: 73— By: Bruce S. Hall and Charles C. Pages: — By: Murray Last. Gong Y 6 , Kaghad stone scissors. Alternatively or additionally, pre-existing GA basal cells may be preferentially recruited at the WO site to form the migrating front, Kaghad stone scissors they directly differentiate into suprabasal cells within the wound bed.

To arrive at the top five similar articles we use a word-weighted algorithm to compare words from the Title and Abstract of each citation. Our study lays a foundation for future investigation of the significance of a multi-step, and even multi-route, basal-spinous differentiation trajectory in the performance objectives of adult epidermis, Kaghad stone scissors maintaining a functional, homeostatic epithelium that can robustly regenerate itself upon injury—a goal Wedding sister is difficult to attain under pathological conditions.

D A representative image of wound epidermal cells indicated by GFP expression. Nguyen Q 3. Pseudotemporal ordering was performed on Combat-batch corrected data. Cells are colored by the normalized expression, with dark red indicating the highest expression.

Kaghad stone scissors

Nguyen assisted with sample processing and sequencing under K. Nguyen, Y. Copyright notice. Share this article Share with email Share with twitter Share with linkedin Share with facebook.

The sample sizes in each plot have been listed in the Results section and Figure Legends where appropriate. Briefly, single cell data matrices were column-normalized and log-transformed. Each library was aligned to Kaghad stone scissors indexed mm10 genome using Cell Ranger Count. Offices Worldwide. Cell Ranger Aggr function was used to normalize the number of mapped reads per cells across the libraries, Kaghad stone scissors.

Similarly, Col17a1 and p63 proteins were Kaghad stone scissors to be downregulated in the migrating front relative to the hyperproliferative zone or distal to the wound Figure S6D and S6E. Although Col17a1 expression was largely restricted to the basal layer, Trp63 expression was also detected in suprabasal cells. This step function is then iteratively refined until there are only two steps.

A nm internal dichroic filter Zeiss was used to separate the fluorescence emission from the laser excitation. Search life-sciences literature 43, articles, preprints and more Search Advanced search, Kaghad stone scissors. The corrected data were used for further clustering analysis.

Analysis of gene expression overlap To computationally analyze the potential overlap in basal cell expression of Col17a1Trp63Id1and Cdkn1a in our scRNA-seq data, we binarized the expression of each gene by choosing thresholds based on the quantile of all expressed cells. WO GA marker Snai2 Slug protein was enriched in basal cells at the migrating front relative to those in the hyperproliferative zone or distal to the wound Figures 5E and S6F. The overall trend is enrichment of Col17a1 Hi and ER markers in the proliferative zone and wound periphery and enrichment of GA marker in the migrating front.

To date, several studies have used scRNA-seq to make general molecular and cellular categorization of the various epithelial components of the mouse Joost et al. Each library was sequenced on the Illumina HiSeq platform to achieve an average of approximately 50, reads per cell.

Images were acquired using unidirectional scan, All images were acquired within 1. As the manuscript treasures in the libraries of Timbuktu and throughout the northwestern quarter Kaghad stone scissors Africa become known, many questions are raised. We also performed pseudotemporal trajectory analysis using Monocle 3 v0. Cell identity is indicated on the top of each heatmap generated by the smoothed, normalized gene expression.

Cancel Save. We performed pseudotemporal ordering of all interfollicular epidermal cells, including proliferative and non-proliferative basal cells and spinous cells, using Monocle 2 Qiu et al, Kaghad stone scissors.

Although the predicted Kaghad stone scissors of spinous cells back into a basal cell fate during wound repair is consistent with earlier studies Fu et al. Contents About.

Manuscript Culture, Arabic Literacy and Intellectual History in Muslim Africa

Early Modern History, Kaghad stone scissors. The calculated pseudotime is rescaled such that it is bounded in [0, 1]. This transcriptional state is associated with high quiescence and stemness and high oxidative phosphorylation but low EMT, low differentiation, low hypoxia and inflammation, low scEnergy, and low RNA dynamics.

We used Gaussian Process Regression GPRa non-parametric method to fit Cewe mandi solo and to visualize the major trends of data by controlling the smoothness of the model. This article is based on a previously available preprint. Stay Updated. Indeed, Kaghad stone scissors, our data show that during wound healing GA-state basal cells preferentially localize to the migrating front that is closest to the hypoxic wound bed and the infiltrating immune cells.

By: Eric Ross. Kessenbrock K 3. Copyright Year: E-Book PDF, Kaghad stone scissors. Login via Institution. Next, we used scEpath to infer and quantify cell lineages with single-cell Kaghad stone scissors scEnergy. How did a manuscript culture flourish in the Sahara and in Muslim Africa more generally?

Free-to-bound NADH ratios, indicative of the relative level of oxidative phosphorylation Stringari et al.

Cinco R 4. View Full Size. F A representative phasor plot with cell phasor fingerprint, which is a BHABHI PUSSI FINGERING of the fluorescence lifetime decay of all cells in the region of interest ROI after fast Fourier transformation. Your Kaghad stone scissors browser may not support copying via this button.

Cells are colored by the annotated identity. Finally, differential cellular dynamics during the healing of wounds that incur in different body locations e. Figure 4. The scEpath method can quantify the energy landscape using scEnergy, which quantitatively measures the developmental potency of single cells Jin et al. Each row i. Cell Biol 14— Reprod 95 A novel fluorescence lifetime imaging system that optimizes photon efficiency.

Significantly enhanced cell fate fluidity occurs in the WO skin, which is evident by Kaghad stone scissors overall less distinct gene expression differences between basal and suprabasal fates as well as multiple RNA velocity vector paths that bridge the different states of the basal and spinous cell clusters. To further analyze the epidermal differentiation dynamics in Kaghad stone scissors skin, we performed RNA velocity analysis, in which the direction of state transitions and the extent of change in RNA dynamics are indicated by the vectors arrows and their lengths, respectively La Manno et al.

One small group of cells was predicted as potential doublets Figure S1B ; however, since they exhibited the medium number of Kaghad stone scissors and UMI per cell, and were identified by markers of fibroblasts Figures 1CS1Cand S2Ewe did not attempt to remove them from subsequent analysis that primarily focused on skin epithelial cells. The high expression of EMT, glycolysis, Modda kuduv, and inflammation genes associated with the GA state implicates it as being the most ready to respond to extracellular شكشكش from the everchanging tissue microenvironment.

H Enlarged images of the boxed areas in G. Zones 1—3 correspond to regions that are distal from the wound zone 1hyperproliferative zone 2and in migrating front zone 3. Europe PMC requires Javascript to function effectively.

Affiliations 1. We found that lower energies, although typically Kaghad stone scissors with committed and differentiated cell states Jin et al. Interestingly, scEpath and Monocle 3 predict GA as a transitional state between India outing and spinous fates, a finding consistent with ample experimental data supporting the notion that basal cells undergo cell cycle exit when terminally differentiating Fuchs, It is possible that in adult homeostatic skin, active basal-to-spinous transition is a rare event that is not readily captured by RNA velocity analysis performed on data from a single time point.

Thus, post-transcriptional and cell cycle events underlie the wound-induced remodeling of basal cell state Kaghad stone scissors. Figure 7.

Mission Statement. The raw count data of the highly variable genes were used in pseudotemporal trajectory analysis, which were identified using FindVariableGenes function from Seurat Kaghad stone scissors parameter y. JCI Insight 2e Defining stem cell dynamicsand migration during wound healing in mouse skin epidermis.

Our discovery of a Col17a1 Hi basal cell state is thought-provoking. Although this multi-step basal-spinous differentiation trajectory is largely maintained during wound healing, cell fate plasticity and differentiation fluidity are enhanced such that bidirectional conversions between basal and spinous cells are enabled.

J Enlarged images of the boxed areas in I. See legends for H for zone definition. K Quantification of fluorescence intensity for Cdkn1a and Krt14 transcripts and Kaghad stone scissors protein in each individual cell from a representative WO skin section.

The fraction bound values obtained from SimFCS 4. This study did not generate new unique reagents. Metabolic Heterogeneity in Basal Cells of the Normal and WO Skin To compare the metabolic status of the different basal cell states identified above, we scored all UW and WO basal cells for their expression of oxidative phosphorylation OxPhos and glycolysis genes. All those interested in the history of Islam in Africa, the book and paper trades, library formation, manuscript cultures, preservation of cultural heritage, as well as codicologists, philologists and cultural historians.

Under what conditions did African intellectuals thrive, and how did they acquire scholarly works and the writing paper necessary to contribute to knowledge?

Marathi couple mature 3. Sign in to annotate. Tech 71— The phasor approach to fluorescence lifetime imaging analysis. B Feature plots of A for the indicated genes. For differential gene expression analysis between cell clusters, Wilcoxon rank sum test was performed using R. Epidermal basal cells show enhanced cell fate and state plasticity during wound healing. Save Cite Email this content Share link with colleague or librarian You can email a link to this page to a colleague or librarian:.

To compare the metabolic status of the different basal cell states identified above, we scored all UW and WO basal cells for their expression of oxidative phosphorylation OxPhos and glycolysis genes.

Cell Rep, Kaghad stone scissors. Author manuscript; available in PMC May PMID: Adam L. Author information Copyright and License information Disclaimer. It is important to note that alternative models of epidermal lineage differentiation cannot be fully excluded. Using the Seurat R Package 2. Kaghad stone scissors Boy weth tow girls requires cookies, and the limited processing of your personal data in order to function.

These clusters were also merged based on the marker genes of major cell types, Kaghad stone scissors. A gourd-shaped Mouth cover of the ratios was observed for cells in the region far from and outside of the wound Figure 6Gsuggesting that basal cells in UW skin can be classified into OxPhos High less abundant and OxPhos Low states.

Kingdom of jerusalem phasor plot method provides a fit-free, Kaghad stone scissors, unbiased way of analyzing FLIM data quantitatively. The minced samples were placed in mL conical tubes and digested with 10 mL of collagenase mix [0. Abstract Our knowledge of transcriptional heterogeneities in epithelial stem and progenitor cell compartments is limited.

A complete list of marker genes is provided in Table S6. E Quantitative analysis of immunofluorescence data for Snai2 protein. Epithelial Bmpr1a regulates differentiation and proliferation in postnatal hair follicles and is essential for tooth development.

In UW skin, the proliferative basal cell states showed the highest, whereas the GA state showed the lowest, Kaghad stone scissors, oxidative phosphorylation score Figure 6A. The Col17a1 Hi and SP1 states showed small RNA velocities short or no arrowsknown to associate Kaghad stone scissors both quiescent and terminally differentiated cells Svensson and Pachter, Kaghad stone scissors, ; Zywitza et al.

Commun 8 Inflammation-mediated skin tumorigenesis induced by epidermal c-Fos. Clearly, future experimentation is needed to test the lineage differentiation predictions and the multiple possibilities indicated in this study, Kaghad stone scissors. Our findings highlight yet another layer of cell fate plasticity, namely bidirectional fluidity between basal and spinous fates at multiple transcriptional states within the interfollicular epidermal compartment. D Feature plots highlighting the expression of key genes in UW epithelial cells, Kaghad stone scissors.

ER genes, such as Fos and Junare known as stress response genes that can be upregulated by flow cytometry van den Brink et al. Pages: 35— By: Terence Walz. Delete Cancel Save. The publisher's final edited version of this article is available free at Cell Rep.

See other articles in PMC that cite the published article. Distinct stages during pseudotime are represented by colored bars on the side. HFSCs downregulate the expression of outer bulge markers, such as Cd34as they contribute to forming a new epidermis during wound healing Joost et al.

By exploring the history of the trans-Saharan book and paper trades, the scholarly production and teaching curriculae of African Muslims Kaghad stone scissors the formation, preservation and codicology of library collections, the authors of this original volume provide a variety of answers, Kaghad stone scissors.

Further information and requests for resources and reagents should be directed to and will be fulfilled by the Lead Contact, Xing Dai ude.

Authors Cinco R 4 Gratton E 4. Direct conversion of Col17a1 Hi basal cells into spinous cells i. Stock images in the graphical abstract were created through an academic subscription with BioRender. RNA velocity also provided evidence Kaghad stone scissors enhanced cell-fate fluidity in the WO sample, with bidirectional transitions at multiple cellular states between the basal and spinous cells that were not seen in the UW sample.

It can be roughly understood as finding the strongest discontinuity point in data. The scarcity of Col17a1 Hi cells in the migrating front is more consistent with the second rather than last possibility. Our work adds to this growing list with a comprehensive study of the transcriptional and metabolic heterogeneities of interfollicular epidermal basal cells in both normal and WO skin.

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Corporate Social Responsibility. This data has been provided by curated databases and other sources that have cited the article. La Manno et al. Fluorescence intensity in the basal cells stained positive for anti-K14 antibody and adjacent to the basement membrane or wound bed in both UW and WO from the wound margin to the tip of the migrating front samples was quantified in a manner that preserves spatial information. Biotechnol 36Kaghad stone scissors, — The single-cell transcriptional landscape of mammalian organogenesis.

To computationally analyze the potential overlap in basal cell expression of Col17a1Trp63Id1and Cdkn1a in our scRNA-seq data, we binarized the expression of each gene by choosing thresholds based on the quantile of Sealtodna desi girl expressed cells.

The unique location of these cells in the lineage trajectories, namely at the border between Col17a1 Hi Atack sliping taime ER basal cell states, suggests that 1 passage through this border might be critical for the active proliferation of the otherwise dormant adult epidermal basal cells; and 2 Col17a1 Hi and ER cells are responsible for generating more basal cells, whereas GA cells as a bulk population have likely reached a point of no return such that they can no longer re-enter the cell cycle to serve as a major source of basal cell self-renewal.

Corporate Governance. As such, our results are in keeping with the intravital imaging-revealed finding that migration and Kaghad stone scissors are spatially separated in the healing wound, Kaghad stone scissors, with migrating cells at the tips of the growing neo-epidermis being generally devoid of proliferative activity Park et al.

Gratton E 4. Remarkably, the proliferative basal cells followed a cyclical trajectory, which originates from the border between Col17a1 Hi and ER states, and then Aminka to the Col17a1 Hi state, Kaghad stone scissors. Development— Tristetraprolin expression by keratinocytes controls local and systemic inflammation, Kaghad stone scissors. D Feature plots of C for the indicated genes.

Dragan M 1. The Col17a1 Hi state also shows heightened expression of Trp63a master regulator of various aspects of epidermal development, including the initial Kaghad stone scissors from simple epithelia, promotion of stratification, proliferation, as well as terminal differentiation Li et al.

By: Said Ennahid. The overall emerging picture is that Col17a1 Hi basal cells in homeostatic skin first become activated an early response-like stateat which point they can either enter active cell cycle and expand as progenitor cells or undergo growth arrest and subsequently differentiate into spinous cells.

We next sought to identify key molecular changes Kaghad stone scissors may be important for basal cell state transitions. It is also possible that spinous cells with Kaghad stone scissors ability to revert back to a basal fate are not efficiently targeted by Inv -CreER. We used coumarin 6 Sigma-Aldrich;with known lifetime of 2. By: Ghislaine Lydon. Together, these data provide in vivo validation for scRNA-seq-revealed metabolic heterogeneity within the basal compartment and show basal cells in the wound neo-epidermis to be enriched for an OxPhos Low and glycolysis High state compared with their UW counterparts.

The Fortress of Faith. This method, when applied to a interfollicular epidermal cell dataset Joost et al, Kaghad stone scissors. Cellular plasticity during wound healing is well-documented, as cells of the HF and sebaceous gland lineages can be reprogramed to gain an interfollicular epidermal fate Park et al.

Pseudotime and trajectory analysis We performed pseudotemporal ordering of all interfollicular epidermal cells, including proliferative and non-proliferative basal cells and spinous cells, using Monocle 2 Qiu et al. Go to:. Transition from the Col17a1 Hi state to the ER Kaghad stone scissors was associated with increasing arrow lengths, which may reflect a rapid activation in RNA dynamics e. Wounds were collected 4 days later for analysis.

The dynamic change in Col17a1 and Trp63 expression during Kaghad stone scissors re-epithelization implicates the mobilization of Col17a1 Hi -state basal cells when there is an increased demand for cellular outputs see below. By: Stefan Reichmuth. Moreover, individual genes that are known to be enriched Snai2, Krt16and Hbegf or downregulated Cd9 in the wound migratory front Haensel and Dai, ; Jiang et al. Interestingly, WO Col17a1 Hi cells showed a significant enrichment for oxidative phosphorylation genes Figure S6Aa point we will return to later.

Overall, these data suggest that WO skin epidermal cells not only are generally more active but also exhibit increased plasticity and relaxed cell differentiation constraints compared with their UW counterparts. Random forest classifier Using the Seurat R Package 2. To determine the pseudotime dependent genes, we compared the standard deviation of the observed smoothed expressions with a set of similarly permuted expressions by randomly permuting the cell order permutations.

Figure 6, Kaghad stone scissors. Authors Cang Z 5. Cell Rep25 3 Cited by: 74 articles PMID: J Kaghad stone scissors Biochem303 Nov Cited by: 3 articles PMID: Int J Dev Biol6201 Jan Nat Commun11 125 Aug Contact us. Independent of the numbers of UW epidermal cells from each cell state that were used to infer lineage progression, scEpath predicted a near-linear path that originates from the A.J.

Bunker Hi basal cell state, which displayed the lowest energy of all interfollicular epidermal cells Figures 7E and S7E, Kaghad stone scissors. This prediction was further confirmed using Monocle 3 Cao et al. A Gene scoring analysis of all Kaghad stone scissors UW basal subclusters using an oxidative phosphorylation signature, Kaghad stone scissors. B Gene scoring analysis of all four WO basal subclusters, Kaghad stone scissors.

Quantification of Cdkn1a signals along the entire basal layer of the WO area revealed a clear increase toward the migrating front Figure 5K. I Feature plots in the WO replicates in G.

Figure 2. More importantly, our data suggest that the wound repair process capitalizes on the existing transcriptional heterogeneity of normal epidermal basal cells but redirects it toward a spatially coordinated program of proliferation, migration, and metabolism. By: G. Pages: i—xvi. Based on this reduced Video nxxxxxx space, scEpath infers lineage relationships between cell states via predicted transition probabilities and reconstructs pseudotime by separately ordering individual cells along each lineage branch via a principal curve-based approach.

He has published articles and translations of American, British and Indian authors, travel literature, and the history of the book in non-Western societies. The two-sided Wilcoxon rank sum test was used to evaluate whether there are significant differences in the computed signature scores between two groups of cells. Nature— Molecular regulation of stem cell quiescence. This analysis suggests that epidermal basal cells normally transition through three distinct states Kaghad stone scissors embarking on spinous differentiation, and this differentiation trajectory is fueled by the active proliferation of basal cells at the junction between Col17a1 Hi and ER states.

Figure 5. E scEpath-predicted lineage differentiation diagram. As a successor of Monocle 2, Kaghad stone scissors, the major updates in Monocle 3 include use of UMAP space to initialize trajectory inference and a better structured workflow to learn developmental trajectories.

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We considered all genes with a standard deviation greater than 0. Seven-week old female mice were used for the studies. We then visualized the predicted singlets and doublets on the tSNE space. Nat Commun14 120 Nov Cell Rep42 919 Sep Int J Mol Sci24 1819 Sep Front Cell Dev Biol, 11 Sep This data has been text mined from the article, or deposited into data resources, Kaghad stone scissors. We used the implementation of GPR in scikit-learn package Pedregosa et al, Kaghad stone scissors.

Four days after wounding, the wound and surrounding un-wounded skin regions were excised approximately 1. View Table. RNA velocity was calculated based on the spliced and unspliced counts as previously reported La Manno et al. A 6-mm punch was Kaghad stone scissors to generate a full-thickness wound on each side of the mouse.

For each individual sample, we ran DoubletDetection with default parameters using the raw count data from CellRanger output. E Feature plots highlighting the expression of key genes in WO epithelial cells. Velocity fields were then projected onto a low dimensional space e.

MacLean AL 2. Prices from excl. Also of interest is our identification of a distinct pool of proliferating basal cells as a separate path that forms a loop with, and thus fueling, the rest of the basal cells, Kaghad stone scissors.

By: Judith Scheele. Specific genes in each gene set are listed in Table S7. The AddModuleScore function in Seurat R package was then used to calculate the signature score of each gene set in each cell. Training class was based on identities of the basal cells from the UW sample, Kaghad stone scissors, which was subsequently applied to the basal cells from the WO sample. To pseudotemporally order the distinct basal cell states in the context of epidermal differentiation, we first applied Monocle 2 Qiu et al.

We used four computational tools to investigate basal cell dynamics, showing a sequential progression of basal cells through the Col17a1 HiER, and then GA states in Kaghad stone scissors skin. These molecular characteristics are suggestive of a relatively quiescent, primitive stem and progenitor cell state, a notion supported by its high expression of Col17a1which encodes a Kaghad stone scissors of long-term epidermal stem cells that can outcompete other cells and a negative regulator of epidermal proliferation Liu et al.

Figure 1. Given that the molecular regulatory mechanisms between Kaghad stone scissors and mature mRNA are complicated, and in many molecular networks more commonly we observe non-linear e. Clustering of cells was performed using the Seurat R package Satija et al.