Related Experiment Video

Updated: Sep 7, 2025

A 3D Organotypic Melanoma Spheroid Skin Model
08:49

A 3D Organotypic Melanoma Spheroid Skin Model

Published on: May 18, 2018

15.9K

[Molecular pathology of skin melanoma]

József Tímár1, Andrea Ladányi2

  • 1Klinikai Központ, Semmelweis Egyetem, Patológiai, Igazságügyi és Biztosítási Orvostani Intézet, Budapest, Hungary. jtimar@gmail.com.

Magyar Onkologia
|June 20, 2022
PubMed

Insights

Melanoma diagnosis and treatment have advanced, but new therapies can cause resistance. Continuous molecular monitoring is crucial for effective melanoma management.

Area of Science:

  • Oncology
  • Dermatology
  • Molecular Biology

Background:

  • Skin melanoma is a frequent malignancy linked to UV exposure.
  • Increased early diagnostics and novel therapies have improved survival rates.
  • Understanding melanoma immunobiology and mutation patterns is key.

Purpose of the Study:

  • To highlight the importance of molecular markers in melanoma diagnosis and prognosis.
  • To discuss the role of immunotherapy and targeted therapy (BRAF mutant form).
  • To emphasize the need for continuous monitoring due to therapy-induced resistance.

Main Methods:

  • Review of current knowledge on melanoma diagnostics and therapies.
  • Analysis of molecular markers for tumor differentiation and prognosis.
  • Investigation of resistance mechanisms in novel melanoma treatments.

Main Results:

  • Molecular markers differentiate precancerous from malignant lesions and define prognosis.
  • Immunotherapy is broadly applicable, while targeted therapy requires BRAF mutations.
  • Novel therapies can lead to acquired genetic alterations and resistance.

Conclusions:

  • Initial molecular profiling of primary tumors needs to evolve.
  • Continuous monitoring is essential to overcome acquired resistance mechanisms.
  • Personalized and adaptive treatment strategies are vital for melanoma patients.

More Related Videos

Spatial and Temporal Control of Murine Melanoma Initiation from Mutant Melanocyte Stem Cells06:09

Spatial and Temporal Control of Murine Melanoma Initiation from Mutant Melanocyte Stem Cells

Published on: June 7, 2019

8.9K
A Robust Discovery Platform for the Identification of Novel Mediators of Melanoma Metastasis07:41

A Robust Discovery Platform for the Identification of Novel Mediators of Melanoma Metastasis

Published on: March 8, 2022

2.5K

Related Concept Videos

Skin Cancer01:30

Skin Cancer

Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
4.5K
Pigmentation01:19

Pigmentation

The color of the skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. The melanin is transferred to the keratinocytes via melanosomes.
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
2.6K
Tumor Progression02:07

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.5K
The Intrinsic Apoptotic Pathway01:31

The Intrinsic Apoptotic Pathway

Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
6.8K
Metastasis02:30

Metastasis

Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.7K
Renewal of Skin Epidermal Stem Cells01:12

Renewal of Skin Epidermal Stem Cells

The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular...
2.6K