38 results about "HRAS" patented technology

Conjugates of a cereblon-binding compound and compounds having modulatory activity against G12C mutant KRAS, HRAS or NRAS G12C proteins are provided. Methods associated with preparation and use of such conjugates, pharmaceutical compositions comprising such conjugates and methods to modulate the activity of G12C mutant KRAS, HRAS or NRAS G12C proteins for treatment of disorders, such as cancer, are also provided.

The invention provides a four-autoantibody combined detection kit for diagnosing an early esophageal squamous cancer and application thereof. The four-autoantibody combined detection kit for diagnosing the early esophageal squamous cancer comprises a solid substrate and antigen protein which coats the solid substrate; and the antigen protein comprises TP53, HRAS, CTAG1A and NSG1. The four-autoantibody combined detection kit for diagnosing the early esophageal squamous cancer, provided by the invention, has the advantages that the TP53, the HRAS, the CTAG1A and the NSG1 are firstly adopted as acombination to be used for early diagnosis of ESCC, higher sensibility and higher specificity are realized, the detection kit is conducive to further improvement of serologic screening quality of ESCC early diagnosis, and therefore, the cure rate and survival rate of patients are further promoted.

Compounds having activity as inhibitors of G12C mutant KRAS protein are provided. The compounds have the following structure (I): or a pharmaceutically acceptable salt, stereoisomer, isotopic form or prodrug thereof, wherein R¹, R^2a, R^2b, R^2c, R^3a, R^3b, R^4a, R^4b, R⁵, L¹, L², E, m¹ and m² are as defined herein. Methods associated with preparation and use of such compounds, pharmaceutical compositions comprising such compounds and methods to modulate the activity of G12C mutant KRAS protein for treatment of disorders, such as cancer, are also provided.

The invention discloses a serum protein marker for early screening and diagnosis of breast cancer, which belongs to the technical field of biomedicine. The serum protein marker for early screening anddiagnosis of the breast cancer is any one or a combination of two or more of the proteins encoded by the CEBPA, RalA, p62, PTCH1, BRCA2, HRAS, FUBP1, GATA3, FGFR3, ALK, HISTIH3B or p53 genes. The invention also discloses a kit and a detection method including the serum protein marker for early screening and diagnosis of the breast cancer. Based on the role played by cancer driver genes in the genesis and development of the tumor, the invention customizes a human protein chip encoded by 138 cancer driver genes, which contains 180 human-derived recombinant proteins. Firstly, an early detectionserum marker of the breast cancer is first screened through the protein chip; then verification is performed by using the ELISA indirect method; and finally, a group of breast cancer serum protein marker that can be used for early screening and diagnosis of the breast cancer is screened out. The area under the ROC curve of the combined diagnosis of breast cancer reaches 0.886; the 95% CI is 0.847to 0.925; and when the specificity is ensured to be 92.2%, the sensitivity is 67.9%, and the consistency rate reaches 80.1%.

A method for evaluating the quality of mammalian oocytes comprises determining the expression level of one or more of the genes ACPP, AQP11, CCDC126, CLU, CYP11 A1, CYP19A1, EGR3, FN1, FOSL2, GMNN, HRAS, HSD3B2, HS-D17B1, HSD11B2, HSDL1, IGF1, IGFBP4, IGFBP5, IRS1, KCNK3, KLF6, NEK6, SMAD7 or STC1 in a test sample derived from a cumulus cell or granulosa cell associated with the oocyte, and comparing the expression level of said at least one marker gene expression in the sample with the expression level in a control. Differential expression of the gene between the sample and the control is indicative of the quality of the oocyte.

The invention discloses a primer for detecting variation of benign and malignant related genes of thyroid nodules, a kit and a detection method. According to the primer, the kit and the detection method, variation of 15 loci of the six genes and variation of the three fusion genes can be detected simultaneously, and the BRAF gene, the KRAS gene, the HRAS gene, the NRAS gene, the TERT gene, the EIF1AX gene, RET/PTC1 fusion, RET/PTC3 fusion and PAX8/PPARgamma fusion are involved. Hotspot mutation and fusion variation of the genes are closely related to the benign and malignant thyroid nodules. Therefore, the primer, the kit and the detection method are used for detecting a sample of a patient and can assist doctors in benign and malignant identification of the thyroid nodules which cannot be clearly diagnosed in the cytology, the accuracy of identifying the benign and malignant thyroid nodules is improved, excessive medical treatment for the patient with the thyroid nodules is reduced, and the primer, the kit and the detection method have important practical significance and high economic benefit for saving medical resources of China.

The invention discloses an [alpha]-helical peptide inhibitor for targeting HRas protein. The structural formula of the [alpha]-helical peptide inhibitor is disclosed as follows. The invention also provides a purpose of the above peptide inhibitor for preparing the medicine of the targeting HRas protein. The [alpha]-helical peptide inhibitor for the targeting HRas protein can be applied to a radiotherapy radiation sensitizer.

The present invention relates to the technical field of medical equipment, in particular to a test kit for HRAS gene detection, which includes a box body, a box cover is installed on the upper side of the box body through a hinge, and the box body is a double-layer structure. The lower part of the bit block is fixedly connected with the upper part of the sealing plug, and the inner bottom of the insulation layer is fixedly provided with a backing plate, and several fixing grooves are equidistantly opened on the backing plate, and springs are fixedly installed in the fixing grooves, The upper part of the spring is fixedly provided with a buffer pad, the side wall of the buffer pad is movably connected with the side wall of the fixing groove, the bottom of the sealing plate is movably connected with the upper part of the limit block, and the bottom of the box cover is close to The outer sides of the sealing plates are provided with clamping strips, and the upper edge of the box body is provided with a clamping groove, and the clamping strips are clamped in the clamping grooves. The structure of the present invention is simple, which effectively improves the safety of transportation, and effectively The sealing effect is improved to ensure the accuracy of the test results.

The invention provides a thyroid cancer auxiliary molecule diagnosis test kit. The thyroid cancer auxiliary molecule diagnosis test kit comprises amplification primers and probes for detecting BRAF, HRAS, KRAS, NRAS and TERT genes, internal control gene ACTB primers and probes, and external control gene BRAF primers and probes; the primers are specifically used for detecting a V600E site of the BRAF gene, a Q61R site of the HRAS gene, a G12C site of the KRAS gene, a G12D site of the KRAS gene, a G13R site of the KRAS gene, a G13D site of the KRAS gene, a Q61K site of the NRAS gene, a Q61P siteof the NRAS gene, a Q61H1 site of the NRAS gene, a Q61H2 site of the NRAS gene, a C228T site of the TERT gene and a C250T site of the TERT gene. The invention also provides a use method of the thyroid cancer auxiliary molecule diagnosis test kit. The problems of sensitivity, cost, operation convenience and the like of an existing thyroid cancer auxiliary molecule diagnosis test kit are solved.

There is provided SSOs targeting the region of HRAS, KRAS, and HRAS exon 2 that harbors the activating mutations and which harbors ESE activity. Moreover, there is provided SSOs targeting the 3′- and 5′-splice sites. The SSOs targeting the 5′ splice site sequence of HRAS exon 2, the 3′ splice site sequence of KRAS exon 2 and the 3′ splice site sequence of NRAS exon 2, as well as SSOs that targets ESEs in a conserved part of exon 2 in the HRAS, KRAS and NRAS exon 2 sequences can induce complete or nearly complete exon 2 skipping in cancer cell lines. This results in growth and proliferation inhibition and concomitantly in death of cancer cells. Therefore this invention is directed towards treatment of cancerous diseases and other conditions where RAS signaling is involved.

The invention discloses an extraction-free detection kit and detection method for oncogene mutation in human thyroid glands, belonging to the technical field of molecular biology. According to the kit, a specific nucleic acid releasing agent and PCR reaction liquid matched with the specific nucleic acid releasing agent are adopted, a multiplex PCR capture technology and an NGS sequencing technology are cooperatively used, and the kit is used for qualitatively detecting various variations of BRAF, TERT, RET, TP53, NRAS, HRAS, KRAS and PIK3CA genes in a fresh tissue sample with uncertainty according to results of thyroid nodule needle biopsy cytology; and through detection of multiple genes and multiple sites and consideration of clinical pathological analysis results, assistance is providedfor auxiliary diagnosis and treatment of thyroid cancer.

The present invention is directed to compounds, compositions and methods for modulating RAS family GTPases, in particular KRas, HRas and NRas GTPases. These GTPases are upregulated in cancer and in other tissue and represent appropriate targets for therapy. Methods for identifying the activity of compounds with respect to these and other GTPases in multiplex flow cytometry systems represents another aspect of this invention.

The invention belongs to the field of biological medicine, and discloses a biomarker for judging benign and malignant thyroid nodules, a multi-gene joint detection kit and application. The biomarker group comprises at least one of eight DNA single base mutations and four gene fusions; the eight kinds of DNA single base mutations are selected from a BRAF gene V600E, a TERT gene C228T/C250T, a KRAS gene G12C/G12V/Q61R, an NRAS gene Q61R and an HRAS gene Q61R, and the four kinds of gene fusion are selected from CCDC6-RET (Exon1-Exon12), NCOA4-RET (Exon8-Exon12), PAX8-PPARG (Exon10-Exon2) and ETV6-NTRK3 (Exon4-Exon14). The method and the kit are high in detection sensitivity, high in specificity and wide in application scene.

The invention relates to a carcinogenic mouse model and an establishment method and application thereof, and belongs to the technical field of animal models. The mouse model is obtained by transferring a vector containing a human protooncogene c-Ha-ras (HRAS) gene sequence fragment into C57BL/6 mouse embryonic stem cells, performing blastocyst injection, transplanting into a receptor mouse and performing screening. According to the mouse model, a stem cell targeting technology is adopted, a transgenic vector for highly expressing human proto-oncogene is established and subjected to fixed-point insertion, the mouse model is obtained through construction, C57BL/6 stem cells are directly used as a mouse background, a fixed-point insertion model with the pure C57BL/6 background can be directly obtained without long backcross, and the obtained mouse model is more uniform and better in result consistency.

The invention discloses a primer and kit for evaluating the effect of 131I on treating differentiated thyroid cancer. The kit can be used for simultaneously detecting the variation of nine gene loci of a BRAF gene, a TERT gene, an HRAS gene and an NRAS gene, and the variation of the gene loci is closely related to the treatment effect of 131I on differentiated thyroid cancer. Therefore, when the kit is used for detecting a sample of a patient, a doctor can be assisted in scientifically evaluating the clinical effect of treating a differentiated thyroid cancer patient by using 131I, a basis is provided for making a precise treatment scheme of the patient, and the kit undoubtedly has very important clinical use value.

The invention relates to the technical field of biology, particularly to a primer, a probe and a kit for HRAS G13R mutation detection. The kit comprises allele specific primers, probes, allele non-specific primers, allele non-specific probes and PCR technology common reagents, wherein the PCR common reagents, the primers and the probes form a PCR reaction solution. The kit can effectively and accurately detect the mutation of HRAS G13R in a sample, and has high specificity and sensitivity.